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US20060160679A1 - Pull cord for exercising device - Google Patents

  • ️Thu Jul 20 2006

US20060160679A1 - Pull cord for exercising device - Google Patents

Pull cord for exercising device Download PDF

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Publication number
US20060160679A1
US20060160679A1 US11/035,822 US3582205A US2006160679A1 US 20060160679 A1 US20060160679 A1 US 20060160679A1 US 3582205 A US3582205 A US 3582205A US 2006160679 A1 US2006160679 A1 US 2006160679A1 Authority
US
United States
Prior art keywords
cord
cord body
accordance
pull cord
outer layer
Prior art date
2005-01-14
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US11/035,822
Inventor
Kun-Tan Kung
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
2005-01-14
Filing date
2005-01-14
Publication date
2006-07-20
2005-01-14 Application filed by Individual filed Critical Individual
2005-01-14 Priority to US11/035,822 priority Critical patent/US20060160679A1/en
2006-07-20 Publication of US20060160679A1 publication Critical patent/US20060160679A1/en
Status Abandoned legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
    • A63B21/0004—Exercising devices moving as a whole during exercise
    • A63B21/00043—Exercising devices consisting of a pair of user interfaces connected by flexible elements, e.g. two handles connected by elastic bands
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
    • A63B21/0004—Exercising devices moving as a whole during exercise
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
    • A63B21/02—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using resilient force-resisters
    • A63B21/055—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using resilient force-resisters extension element type
    • A63B21/0552—Elastic ropes or bands
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B9/00—Circular knitting machines with independently-movable needles
    • D04B9/42—Circular knitting machines with independently-movable needles specially adapted for producing goods of particular configuration
    • D04B9/44—Circular knitting machines with independently-movable needles specially adapted for producing goods of particular configuration elongated tubular articles of small diameter, e.g. coverings for cables
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
    • A63B21/02—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using resilient force-resisters
    • A63B21/055—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using resilient force-resisters extension element type
    • A63B21/0552—Elastic ropes or bands
    • A63B21/0555—Details of the rope or band, e.g. shape or colour coding

Definitions

  • the present invention relates to a pull cord, and more particularly to a pull cord for an exercising device, such as a chest expander or the like.
  • a conventional exercising device such as a chest expander 1 , in accordance with the prior art shown in FIG. 9 comprises an elastic pull cord 12 , and two handles 11 .
  • the outer surface of the elastic pull cord 12 directly contacts a user's hands, so that the outer surface of the elastic pull cord 12 is easily worn out due to rubbing, thereby decreasing the lifetime of the elastic pull cord 12 .
  • the elastic pull cord 12 is broken due to tensile action during a long-term utilization, the broken elastic pull cord 12 is easily sprung outward to a user's body, thereby causing danger to the user.
  • the elastic pull cord 12 has a single color, thereby decreasing the outer appearance of the exercising device.
  • a pull cord comprising an elastic cord body; and an outer layer mounted on an outer surface of the cord body.
  • the primary objective of the present invention is to provide a pull cord having a protective outer layer to protect the pull cord.
  • Another objective of the present invention is to provide a pull cord for an exercising device, wherein the outer layer is formed by the knitting yarns which are knitted onto and enclosed around the outer surface of the cord body by the latch needles so as to protect the cord body efficiently, so that the cord body does not directly contact a user's hands, thereby preventing the cord body from being worn out due to friction, and thereby enhancing the lifetime of the cord body.
  • a further objective of the present invention is to provide a pull cord for an exercising device, wherein when the cord body is broken due to tensile action during a long-term utilization, the broken cord body is enclosed in the outer layer, thereby preventing the broken cord body from hurting the user's body.
  • a further objective of the present invention is to provide a pull cord for an exercising device, wherein the outer layer is formed by the knitting yarns having different colors, thereby enhancing the outer appearance of the pull cord.
  • a further objective of the present invention is to provide a pull cord for an exercising device, wherein the outer layer has a smooth outer surface, thereby providing a comfortable sensation to the user when touching the outer layer.
  • FIG. 1 is a perspective view of an exercising device in accordance with the preferred embodiment of the present invention.
  • FIG. 2 is a plan cross-sectional view of the exercising device taken along line 2 - 2 as shown in FIG. 1 ;
  • FIG. 3 is a perspective view of a knitting machine in accordance with the preferred embodiment of the present invention.
  • FIG. 4 is an exploded perspective view of the knitting machine as shown in FIG. 3 ;
  • FIG. 5 is a plan view of the knitting machine as shown in FIG. 3 ;
  • FIG. 6 is a partially enlarged exploded perspective view of upper socket and lower socket of the knitting machine as shown in FIG. 3 ;
  • FIG. 7 is a plan view of the upper socket and lower socket of the knitting machine as shown in FIG. 6 ;
  • FIG. 8 is a perspective view of knitting yams of the knitting machine as shown in FIG. 6 ;
  • FIG. 9 is a perspective view of a conventional exercising device in accordance with the prior art.
  • an exercising device such as a chest expander 2
  • a chest expander 2 in accordance with the preferred embodiment of the present invention comprises a pull cord 20 , and two handles 21 .
  • the pull cord 20 includes an elastic cord body 22 , and an outer layer 24 mounted on an outer surface of the cord body 22 .
  • the outer surface of the cord body 22 has a whole length that is enclosed by the outer layer 24 completely and closely.
  • the outer layer 24 is formed by a plurality of knitting yarns 50 (see FIG. 8 ) which are knitted onto and enclosed around the outer surface of the cord body 22 by a cylinder type knitting machine 40 .
  • the knitting yarns 50 have different colors.
  • the outer layer 24 has a smooth outer surface 240 .
  • the knitting machine 40 includes a fixing seat 41 , a cylindrical needle spool 42 mounted on the fixing seat 41 , a plurality of latch needles 421 each mounted on the needle spool 42 and each having a distal end provided with a hook 422 , a first cam 43 mounted on the needle spool 42 and rested on the fixing seat 41 , a lower socket 44 mounted on the needle spool 42 and rested on the first cam 43 , an upper socket 45 mounted on the needle spool 42 and rested on the lower socket 44 , a housing 46 mounted on the upper socket 45 and the lower socket 44 and rested on the first cam 43 , and a plurality of yarn guide units 47 mounted on an outer wall of the housing 46 .
  • the upper socket 45 and the lower socket 44 have a connection formed with corrugated slopes 451 and 441 matching each other.
  • the number of corrugated slopes 451 and 441 of the upper socket 45 and the lower socket 44 is corresponding to that of the knitting yarns 50 .
  • the housing 46 is locked on the lower socket 44 by locking screws 461 .
  • the housing 46 has a bottom formed with a second cam 462 rested on the first cam 43 , and a drive belt (not shown) is mounted on the second cam 462 of the housing 46 and driven by a motor (not shown) to drive and rotate the housing 46 , so that the upper socket 45 and the lower socket 44 are rotated, and the hook 422 of each of the latch needles 421 is driven by the upper socket 45 and the lower socket 44 to move upward and downward.
  • Each of the yarn guide units 47 includes a substantially L-shaped support arm 471 having a first section secured on the outer wall of the housing 46 by screws 474 , a support rack 472 mounted on a second section of the support arm 471 for supporting the knitting yams 50 , a guide rack 475 having a lower portion secured between the outer wall of the housing 46 and the first section of the support arm 471 by the screws 474 and an upper portion formed with a guide hole 476 , and a positioning hook 477 having a first end pivotally mounted on the upper portion of the guide rack 475 and a second end hooked on the knitting yarns 50 .
  • the cord body 22 is placed on the knitting machine 40 . Then, the knitting yarns 50 placed on the support rack 472 of each of the yarn guide units 47 are hooked by the latch needles 421 .
  • the housing 46 is rotated through a circle, the guide rack 475 and the support rack 472 are also rotated through a circle, so that the latch needles 421 hooking the knitting yarns 50 are also rotated through a circle.
  • the latch needles 421 are driven by the corrugated slopes 451 and 441 of the upper socket 45 and the lower socket 44 to move upward and downward, so that the knitting yarns 50 are knitted on the cord body 22 by the latch needles 421 when the latch needles 421 are rotated through a circle, thereby forming the outer layer 24 on the outer surface of the cord body 22 .
  • the outer layer 24 is formed by the knitting yarns 50 which are knitted onto and enclosed around the outer surface of the cord body 22 by the latch needles 421 so as to protect the cord body 22 efficiently, so that the cord body 22 does not directly contact a user's hands, thereby preventing the cord body 22 from being worn out due to friction, and thereby enhancing the lifetime of the cord body 22 .
  • the outer layer 24 is formed by the knitting yarns 50 having different colors, thereby enhancing the outer appearance of the pull cord.
  • the outer layer 24 has a smooth outer surface 240 , thereby providing a comfortable sensation to the user when touching the outer layer 24 .

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biophysics (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)

Abstract

A pull cord for an exercising device includes an elastic cord body, and an outer layer mounted on an outer surface of the cord body. Thus, the outer layer is formed by the knitting yarns which are knitted onto and enclosed around the outer surface of the cord body so as to protect the cord body efficiently, so that the cord body does not directly contact a user's hands, thereby preventing the cord body from being worn out, and thereby enhancing the lifetime of the cord body. In addition, when the cord body is broken due to tensile action during a long-term utilization, the broken cord body is enclosed in the outer layer, thereby preventing the broken cord body from hurting the user's body.

Description

    BACKGROUND OF THE INVENTION

  • 1. Field of the Invention

  • The present invention relates to a pull cord, and more particularly to a pull cord for an exercising device, such as a chest expander or the like.

  • 2. Description of the Related Art

  • A conventional exercising device, such as a chest expander 1, in accordance with the prior art shown in

    FIG. 9

    comprises an

    elastic pull cord

    12, and two

    handles

    11. However, the outer surface of the

    elastic pull cord

    12 directly contacts a user's hands, so that the outer surface of the

    elastic pull cord

    12 is easily worn out due to rubbing, thereby decreasing the lifetime of the

    elastic pull cord

    12. In addition, when the

    elastic pull cord

    12 is broken due to tensile action during a long-term utilization, the broken

    elastic pull cord

    12 is easily sprung outward to a user's body, thereby causing danger to the user. Further, the

    elastic pull cord

    12 has a single color, thereby decreasing the outer appearance of the exercising device.

    • SUMMARY OF THE INVENTION

  • In accordance with the present invention, there is provided a pull cord, comprising an elastic cord body; and an outer layer mounted on an outer surface of the cord body.

  • The primary objective of the present invention is to provide a pull cord having a protective outer layer to protect the pull cord.

  • Another objective of the present invention is to provide a pull cord for an exercising device, wherein the outer layer is formed by the knitting yarns which are knitted onto and enclosed around the outer surface of the cord body by the latch needles so as to protect the cord body efficiently, so that the cord body does not directly contact a user's hands, thereby preventing the cord body from being worn out due to friction, and thereby enhancing the lifetime of the cord body.

  • A further objective of the present invention is to provide a pull cord for an exercising device, wherein when the cord body is broken due to tensile action during a long-term utilization, the broken cord body is enclosed in the outer layer, thereby preventing the broken cord body from hurting the user's body.

  • A further objective of the present invention is to provide a pull cord for an exercising device, wherein the outer layer is formed by the knitting yarns having different colors, thereby enhancing the outer appearance of the pull cord.

  • A further objective of the present invention is to provide a pull cord for an exercising device, wherein the outer layer has a smooth outer surface, thereby providing a comfortable sensation to the user when touching the outer layer.

  • Further benefits and advantages of the present invention will become apparent after a careful reading of the detailed description with appropriate reference to the accompanying drawings.

    • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1

    is a perspective view of an exercising device in accordance with the preferred embodiment of the present invention;

  • FIG. 2

    is a plan cross-sectional view of the exercising device taken along line 2-2 as shown in

    FIG. 1

    ;

  • FIG. 3

    is a perspective view of a knitting machine in accordance with the preferred embodiment of the present invention;

  • FIG. 4

    is an exploded perspective view of the knitting machine as shown in

    FIG. 3

    ;

  • FIG. 5

    is a plan view of the knitting machine as shown in

    FIG. 3

    ;

  • FIG. 6

    is a partially enlarged exploded perspective view of upper socket and lower socket of the knitting machine as shown in

    FIG. 3

    ;

  • FIG. 7

    is a plan view of the upper socket and lower socket of the knitting machine as shown in

    FIG. 6

    ;

  • FIG. 8

    is a perspective view of knitting yams of the knitting machine as shown in

    FIG. 6

    ; and

  • FIG. 9

    is a perspective view of a conventional exercising device in accordance with the prior art.

    • DETAILED DESCRIPTION OF THE INVENTION

  • Referring to the drawings and initially to

    FIGS. 1 and 2

    , an exercising device, such as a

    chest expander

    2, in accordance with the preferred embodiment of the present invention comprises a

    pull cord

    20, and two

    handles

    21.

  • The

    pull cord

    20 includes an

    elastic cord body

    22, and an

    outer layer

    24 mounted on an outer surface of the

    cord body

    22. The outer surface of the

    cord body

    22 has a whole length that is enclosed by the

    outer layer

    24 completely and closely. The

    outer layer

    24 is formed by a plurality of knitting yarns 50 (see

    FIG. 8

    ) which are knitted onto and enclosed around the outer surface of the

    cord body

    22 by a cylinder

    type knitting machine

    40. Preferably, the

    knitting yarns

    50 have different colors. The

    outer layer

    24 has a smooth

    outer surface

    240.

  • Referring to

    FIGS. 3-8

    with reference to

    FIGS. 1 and 2

    , the

    knitting machine

    40 includes a

    fixing seat

    41, a

    cylindrical needle spool

    42 mounted on the

    fixing seat

    41, a plurality of

    latch needles

    421 each mounted on the

    needle spool

    42 and each having a distal end provided with a

    hook

    422, a

    first cam

    43 mounted on the

    needle spool

    42 and rested on the

    fixing seat

    41, a

    lower socket

    44 mounted on the

    needle spool

    42 and rested on the

    first cam

    43, an

    upper socket

    45 mounted on the

    needle spool

    42 and rested on the

    lower socket

    44, a

    housing

    46 mounted on the

    upper socket

    45 and the

    lower socket

    44 and rested on the

    first cam

    43, and a plurality of

    yarn guide units

    47 mounted on an outer wall of the

    housing

    46.

  • The

    upper socket

    45 and the

    lower socket

    44 have a connection formed with

    corrugated slopes

    451 and 441 matching each other. The number of

    corrugated slopes

    451 and 441 of the

    upper socket

    45 and the

    lower socket

    44 is corresponding to that of the

    knitting yarns

    50.

  • The

    housing

    46 is locked on the

    lower socket

    44 by locking

    screws

    461. The

    housing

    46 has a bottom formed with a

    second cam

    462 rested on the

    first cam

    43, and a drive belt (not shown) is mounted on the

    second cam

    462 of the

    housing

    46 and driven by a motor (not shown) to drive and rotate the

    housing

    46, so that the

    upper socket

    45 and the

    lower socket

    44 are rotated, and the

    hook

    422 of each of the

    latch needles

    421 is driven by the

    upper socket

    45 and the

    lower socket

    44 to move upward and downward.

  • Each of the

    yarn guide units

    47 includes a substantially L-

    shaped support arm

    471 having a first section secured on the outer wall of the

    housing

    46 by

    screws

    474, a

    support rack

    472 mounted on a second section of the

    support arm

    471 for supporting the

    knitting yams

    50, a

    guide rack

    475 having a lower portion secured between the outer wall of the

    housing

    46 and the first section of the

    support arm

    471 by the

    screws

    474 and an upper portion formed with a

    guide hole

    476, and a

    positioning hook

    477 having a first end pivotally mounted on the upper portion of the

    guide rack

    475 and a second end hooked on the

    knitting yarns

    50.

  • In operation, the

    cord body

    22 is placed on the

    knitting machine

    40. Then, the

    knitting yarns

    50 placed on the

    support rack

    472 of each of the

    yarn guide units

    47 are hooked by the

    latch needles

    421. When the

    housing

    46 is rotated through a circle, the

    guide rack

    475 and the

    support rack

    472 are also rotated through a circle, so that the

    latch needles

    421 hooking the knitting

    yarns

    50 are also rotated through a circle. At this time, the

    latch needles

    421 are driven by the

    corrugated slopes

    451 and 441 of the

    upper socket

    45 and the

    lower socket

    44 to move upward and downward, so that the

    knitting yarns

    50 are knitted on the

    cord body

    22 by the

    latch needles

    421 when the

    latch needles

    421 are rotated through a circle, thereby forming the

    outer layer

    24 on the outer surface of the

    cord body

    22.

  • Accordingly, the

    outer layer

    24 is formed by the knitting

    yarns

    50 which are knitted onto and enclosed around the outer surface of the

    cord body

    22 by the

    latch needles

    421 so as to protect the

    cord body

    22 efficiently, so that the

    cord body

    22 does not directly contact a user's hands, thereby preventing the

    cord body

    22 from being worn out due to friction, and thereby enhancing the lifetime of the

    cord body

    22. In addition, when the

    cord body

    22 is broken due to tensile action during a long-term utilization, the

    broken cord body

    22 is enclosed in the

    outer layer

    24, thereby preventing the

    broken cord body

    22 from hurting the user's body. Further, the

    outer layer

    24 is formed by the

    knitting yarns

    50 having different colors, thereby enhancing the outer appearance of the pull cord. Further, the

    outer layer

    24 has a smooth

    outer surface

    240, thereby providing a comfortable sensation to the user when touching the

    outer layer

    24.

  • Although the invention has been explained in relation to its preferred embodiment(s) as mentioned above, it is to be understood that many other possible modifications and variations can be made without departing from the scope of the present invention. It is, therefore, contemplated that the appended claim or claims will cover such modifications and variations that fall within the true scope of the invention.

Claims (11)

1. A pull cord, comprising:

an elastic cord body;

an outer layer mounted on an outer surface of the cord body.

2. The pull cord in accordance with

claim 1

, wherein the outer surface of the cord body has a whole length that is enclosed by the outer layer completely and closely.

3. The pull cord in accordance with

claim 1

, wherein the outer layer is formed by a plurality of knitting yarns.

4. The pull cord in accordance with

claim 3

, wherein the knitting yarns are knitted onto and enclosed around the outer surface of the cord body by a cylinder type knitting machine.

5. The pull cord in accordance with

claim 3

, wherein the knitting yarns have different colors.

6. The pull cord in accordance with

claim 4

, wherein the knitting machine includes a lower socket, an upper socket mounted on the lower socket, and a plurality of latch needles each mounted on the upper socket and the lower socket to move upward and downward therewith.

7. The pull cord in accordance with

claim 6

, wherein the upper socket and the lower socket have a connection formed with corrugated slopes matching each other, so that each of the latch needles is moved upward and downward with the corrugated slopes of the upper socket and the lower socket.

8. The pull cord in accordance with

claim 7

, wherein the corrugated slopes of the upper socket and the lower socket have a number corresponding to that of the knitting yams.

9. The pull cord in accordance with

claim 6

, wherein the knitting yams are knitted onto and enclosed around the outer surface of the cord body by the latch needles so as to protect the cord body.

10. The pull cord in accordance with

claim 1

, wherein when the cord body is broken due to tensile action, the broken cord body is enclosed in the outer layer, thereby preventing the broken cord body from hurting a user's body.

11. The pull cord in accordance with

claim 1

, wherein the outer layer has a smooth outer surface.

US11/035,822 2005-01-14 2005-01-14 Pull cord for exercising device Abandoned US20060160679A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Applications Claiming Priority (1)

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US11/035,822 US20060160679A1 (en) 2005-01-14 2005-01-14 Pull cord for exercising device

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US20060160679A1 true US20060160679A1 (en) 2006-07-20

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070232468A1 (en) * 2006-03-29 2007-10-04 Levy Carol L Endless elastic resistance exercise device
US7465259B2 (en) * 2006-09-20 2008-12-16 Harry Mok Exercise apparatus
US20100255964A1 (en) * 2009-04-03 2010-10-07 Wen-Ching Wang Pull cord assembly for body stretching exercise
US20120199715A1 (en) * 2011-02-07 2012-08-09 Colleen Tuell Portable urinal holder
US20140228180A1 (en) * 2013-02-13 2014-08-14 Christopher N. Walker Multi-function Jump Rope and Resistance Band
US20140315666A1 (en) * 2013-04-17 2014-10-23 Holly Medley Ball handling improvement device
US8961377B1 (en) * 2011-03-03 2015-02-24 Olin Simplis Exercise resistance apparatus
USD741964S1 (en) * 2014-01-22 2015-10-27 James Eugene Rychtyk Adjustable muscle stretching device
US20160129297A1 (en) * 2011-04-14 2016-05-12 Douglas S. Dennis Exercise apparatus, methods of using, and method of manufacture
US20170080273A1 (en) * 2014-05-12 2017-03-23 Antonio Rafael SANCHEZ GONZALEZ Apparatus for performing gym exercises, training and rehabilitation of muscular and articular groups
US20200164244A1 (en) * 2018-11-23 2020-05-28 Jackson Lee Gilmore Enhanced handle grip apparatus for resistive exercise
US20220054923A1 (en) * 2020-08-23 2022-02-24 Steven Nock Carrier straps for weight plates

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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US4312260A (en) * 1978-09-22 1982-01-26 Rhone-Poulenc-Textile Flexible cable
US4781039A (en) * 1985-01-22 1988-11-01 Institute Po Obleklo I Tekstil Circular knit with warp knit structure and method of making same
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US20070232468A1 (en) * 2006-03-29 2007-10-04 Levy Carol L Endless elastic resistance exercise device
US7465259B2 (en) * 2006-09-20 2008-12-16 Harry Mok Exercise apparatus
US20100255964A1 (en) * 2009-04-03 2010-10-07 Wen-Ching Wang Pull cord assembly for body stretching exercise
US8105215B2 (en) * 2009-04-03 2012-01-31 Wen-Ching Wang Pull cord assembly for body stretching exercise
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US8961377B1 (en) * 2011-03-03 2015-02-24 Olin Simplis Exercise resistance apparatus
US9962571B2 (en) 2011-04-14 2018-05-08 Douglas S. Dennis Exercise apparatus, methods of using, and method of manufacture
US20160129297A1 (en) * 2011-04-14 2016-05-12 Douglas S. Dennis Exercise apparatus, methods of using, and method of manufacture
US9713733B2 (en) * 2011-04-14 2017-07-25 Douglas S. Dennis Exercise apparatus, methods of using, and method of manufacture
US10780308B2 (en) 2011-04-14 2020-09-22 Douglas S. Dennis Elastic band for use in a resistance-type exerciser
US20140228180A1 (en) * 2013-02-13 2014-08-14 Christopher N. Walker Multi-function Jump Rope and Resistance Band
US20140315666A1 (en) * 2013-04-17 2014-10-23 Holly Medley Ball handling improvement device
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US20170080273A1 (en) * 2014-05-12 2017-03-23 Antonio Rafael SANCHEZ GONZALEZ Apparatus for performing gym exercises, training and rehabilitation of muscular and articular groups
US20200164244A1 (en) * 2018-11-23 2020-05-28 Jackson Lee Gilmore Enhanced handle grip apparatus for resistive exercise
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