US3792860A - Pivotal platform training apparatus with selectively connectible components - Google Patents

Pivotal platform training apparatus with selectively connectible components Download PDF

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US3792860A
US3792860A US3792860DA US3792860A US 3792860 A US3792860 A US 3792860A US 3792860D A US3792860D A US 3792860DA US 3792860 A US3792860 A US 3792860A
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platforms
supporting member
training apparatus
crossbar
apparatus according
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A Selnes
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A Selnes
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    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B23/00Exercising apparatus specially adapted for particular parts of the body
    • A63B23/035Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously
    • A63B23/0355A single apparatus used for either upper or lower limbs, i.e. with a set of support elements driven either by the upper or the lower limb or limbs
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B21/00Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
    • A63B21/06User-manipulated weights
    • A63B21/068User-manipulated weights using user's body weight
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2208/00Characteristics or parameters related to the user or player
    • A63B2208/12Characteristics or parameters related to the user or player specially adapted for children

Abstract

A training apparatus comprising a framework, two platforms, one end of each platform being pivotally connected to the framework, the platforms being substantially parallel to one another and being pivoted at adjacent ends, a supporting member, adjustable in length, being located between the substantially parallel platforms and being pivotally connected at one end to the framework, a crossbar being detachably fitted at the other end of the supporting member and one or more force-transmitting or tractive means for retaining the supporting member in different desired angular positions and/or movably interconnecting the two platforms and/or connecting through the crossbar to a displaceable device, when the training apparatus is in use.

Description

United States Patent 1191 Selnes [451 Feb. 19, 1974 [76] Inventor: Arnold Selnes, Huitfeldtsgt, 28,

Oslo 2, Norway 22 Filed: Oct. 17, 1972 21 Appl. No.: 272,907

[52] US. Cl 272/58, 272/57 D, 272/72, 272/79 R, 272/70 [51] Int. Cl A63b 21/00 [58] Field of Search 272/58, 72, 79 R, 80, 57 D, 272/81, 82, 83 R, 83 A 3,473,843 lO/1969 Hart ..272/72X 3,501,140 3/1970 Bichorn 272/58 3,566,861 3/1971 Weiss 272/79 R X Primary Examiner-Richard C. Pinkham Assistant Examiner-R. T. Stouffer Attorney, Agent, or FirmAlbert C. Nolte, Jr.; Edward B. Hunter; C. Bruce Hamburg [5 7 ABSTRACT A training apparatus comprising a framework, two platforms, one end of each platform being pivotally connected to the framework, the platforms being substantially parallel to one another and being pivoted at adjacent ends, a supporting member, adjustable in length, being located between the substantially parallel platforms and being pivotally connected at one end to the framework, a crossbar being detachably fitted at the other end of the supporting member and one or more force-transmitting or tractive means for retaining the supporting member in different desired angular positions and/or movably interconnecting the two platforms and/or connecting through the crossbar to a displaceable device, when the training apparatus is in use.

9 Claims, 12 Drawing Figures PATENTEDFE'BIQI'BH I 3 792 8630 saw 1 OF 5 PAT T FEB 1 9 I974 sum u UF 5 1 PIVOTAL PLATFORM TRAINING APPARATUS WITH SELECTIVELY CONNECTIBLE COMPONENTS The present invention concerns a training apparatus, especially intended for indoor use.

Several different training apparatuses are known which are intended for indoor use. However, the majority of these apparatuses are very specialized in that it is only possible to carry out a single exercise on each apparatus. Additionally such apparatuses are often very noisy in operation.

Another disadvantage of the known training apparatuses is that they are usually very heavy and occupy a large space and in certain cases require a special room. Accordingly, such apparatuses cannot be used, for instance, in a room of a house. Further, such apparatuses Possible to Perry Qytmmx matdyfll ffere Q2291"...

cises. Moreover, for each individual exercise a number of intermediate exercises are possible.

The apparatus of the invention makes little noise and is intended for use by any person, e.g. for athletes, handicapped people, people who are convalescing, children and average people, etc.

The apparatus of the invention is small and lightweight and reasonably priced. There are no friction elements, brakes or cog-wheels, etc. Moreover, the apparatus can be folded up when not in use to enable easy storing thereof to be effected.

The apparatus of the present invention is so constructed that it can be utilised by any person without complex instructions being necessary.

According to the present invention, there is provided a training apparatus comprising a framework, two platforms, one end of each platform being pivotally connected to the framework, the platforms being substantially parallel to one anotherand being pivoted at adjacent ends, a supporting member, adjustable in length, being located between the substantially parallel platforms and beingpivotally connected at one end to the framework, a crossbar being detachably fitted at the other end of the supporting member and one or more force-transmitting or tractive means being provided for retaining the supporting member in different desired angular positions, and/or for movably interconnecting the two platforms and/or for connecting via the crossbar to a displaceable device, when the training apparatus is in use.

The appended drawings show schematically some examples of how to make use of the apparatus. It will be apparent from the drawings how the apparatus can be used placed on the floor, as well as how it can be usedhanging up on a wall. The apparatus can also be adjusted and used for walk-and-run training, rowing apparatus, gymnastic apparatus, push and stretch apparatus, swing or playing apparatus for children, besides constituting an excellent body exercising apparatus for both adults and children. However, it is not possible to mention all the different possibilities of the apparatus. Therefore, the description is primarily aimed at explaining the principle of the construction of the apparatus and some examples of how it functions. At all times it is ones own body weight that constitutes the direct resistance in the apparatus.

The apparatus is in principle based on utilizing a balance arrangement. Theperformer can decide for himself how strenuous the exercises are to be and what groups of muscles are to be trained, accordingly from zero effort to a maximum effort can be applied. 'By means of the apparatus of the invention is is possible to train different groups of muscles of the body by utilizing the various different exercises possible.

The invention will be further illustrated, by way of example, with reference to the accompanying drawings, in which:

FIG. 1 is a perspective view of the apparatus of the invention, adjusted for a walk/run or bodyexercise;

FIG. 2 is a perspective view of the apparatus of the invention in a collapsed condition;

FIG. 3 is a side perspective view of the apparatus of the invention placed on the floor and being utilized for a body exercise.

FIG. 4 is a perspective view of the apparatus of the invention placed on the floor and being used as a rowing apparatus.

FIG. 5 is a perspective view of the apparatus of the invention hanging on a wall and being utilized for pullpush exercises; 1

FIG. 6 is a perspective view of the apparatus of the invention hanging on a wall and being utilized as a swing and for body-raising and lowering exercises;

FIG. 7 is a perspective view of the apparatus of the invention placed on the floor and being utilized for walk/run exercises;

F IG'. 8 is a side view of the apparatus of the invention placed on the floor and being utilized for therapy exercises by a convalescing or handicapped person;

FIG. 9 is a perspective view and FIG. 10 is a side view of the apparatus of the invention hanging on a wall and being utilized for different body exercises; and

FIGS. 11 and 12 are enlarged fragmentary views showing constructional details of the apparatus of the invention. 7 I

The apparatus shown in FIG. 1 is built up on a base or framework 1, and is preferably constructed of steel tubes. Two platforms 3 are pivotally connected to the framework 1 by axle 2. The platforms 3 are movably and adjustably interconnected by means of adjustable cords 5, a crossbar l0, and a supporting member 7,8 adjustable in length. The'supporting member 7,8, is located between the platforms 3 and is retained in different desired positions by means of adjustable supporting stays 12. The crossbar 10 is detachably pivotally connected at 9 to the supporting member 7,8, via revolvable bolt 17 in revolvable and rockable manner.

The cords 5 are removably attached to the platforms 3 by means of hooks 4 which pass through lugs fixed to the underside of handlebars 14. In this manner, the cords or hooks cannot fall out in training. Nevertheless, they may be easily removed when the apparatus is to be disassembled or is to be altered for other exercises. The supporting stays 12 can be fixed in the same manner.

The supporting member 7,8 is pivotally connected to the framework 1 by axle 6. The axle 6 is rotatably located in the framework 1, and mounted thereon by means of an angle iron 15, fixed to the framework and equipped with lugs 16 that can be bent inwards (shown in detail in FIGS. 11 and 12).

The framework 1 can be made in two parts (as shown in the drawings) or as a single piece. The cords 5, and the supporting stays 12, may be made of nylon or chain-cable, etc. and in known manner they can be made adjustable by means of lock-blocks or hooks etc. The platforms 3 are each equipped at their free end with a handlebar 14 for different arm-and body exercises. The supporting member 7,8, can be adjusted in length and fixed by means of abolt. The crossbar 10 can be provided with movable collars 13 in order to fix the cords 5 thereto or to' act as fastening elements for rolling blocks or castors, according to requirements.

FIG. 2 shows the apparatus of the invention in a collapsed condition when not in use. The crossbar l and part of the supporting member 8 may be positioned on opposite sides of the framework 1.

FIG. 3 shows the apparatus of the invention being utilized for a body exercise.

The apparatus as shown in FIG. 4 may be used as a rowing apparatus, in which case the supporting member 8 is equipped with a foot-support 11. The collars 13 on the crossbar 10 are then equipped with a pulley arrangement 21 and the cords 20 pass from the operator via the crossbar 10, to a rolling-seat 18 equipped with wheels. On the back edge thereof, the seat may have an elevated back section, or a suitable belt 19 which is fastened to the seat 18 to act to counteract the forces produced during the exercise. In this way the participant is prevented from sliding on the seat. It is up to the participant how much force he wants to apply in the rowing action since the resistance offered depends on the foot-force applied.

The same cords and crossbar may be used for different exercises, e.g. when the apparatus is hung up on a wall (FIG. in this case with a connected cord 23.

The seat 18 may also be used for other exercises. It is possible to repose on the seat, and in the traditional way to roll with same forward and back. When the apparatus is used as a gymnastic apparatus, the cords can be freed from contact with the platforms, and be equipped with a crossbar in the same way as when it is used as a swing. When the apparatus is used as a swing, the cords are provided with a seat 24 (FIG. 6). The cords run then through castors, and they are equipped with handle-bars, so that the participant can raise and lower the body.

FIGS. 7,8, 9 and show various forms of exercise possible with the apparatus of the invention.

All cords and stays, as well as the supporting member are adjustable in length. It is possible to rotate the crossbar in the horizontal as well as the vertical direction, and it is removably connected to the supporting member.

I claim:

1. A training apparatus comprising a framework, two platforms, one end of each platform being pivotally connected to the framework, the platforms being substantially parallel to one another and being pivoted at adjacent ends, a supporting member, adjustable in length, being located between the substantially parallel platforms and being pivotally connected at one end to the framework, a crossbar being detachably fitted at the other end of the supporting member and one or more selectively connectable means for retaining the supporting member in different desired angular positions, for movably interconnecting the two platforms whereby pivotal movement of one platform in one direction will simultaneously move the other platform in the opposite direction, or for connecting through said crossbar to a displaceable device whereby tractive force by a user will displace said device.

2. A training apparatus according to claim I, in which said selectively connectible means comprises adjustable stays for retaining the supporting member in different desired angular positions.

3. A training apparatus according to claim 1, in which said selectively connectible means comprises adjustable cords for connection to the crossbar to movably interconnect the two platforms.

4. A training apparatus according to claim 3, further comprising hooks connected to the cords and lugs which are fastened to the underside of the handlebars of the platforms, the hooks and lugs being adapted to engage to form a connection.

5. A training apparatus according to claim 1, further comprising means detachably pivotally connecting the crossbar to the supporting member for pivoting in both the horizontal and vertical direction.

6. A training apparatus according to claim 1, in which the supporting member and the platforms are collapsible to lie in the plane of the framework.

7. A training apparatus according to claim 1, further comprising handlebars integral with the platforms.

8. A training apparatus according to claim 1, further comprising means including transverse axles pivotally connecting the platforms and the supporting member.

9. A training apparatus according to claim 1, in which said selectively connectible means comprises cords and the apparatus further comprises a rolling seat constituting the displaceable device, pulleys attached to the crossbar for receiving the cords and a foot support adapted to be detachably mounted on the supporting member.

Claims (9)

1. A training apparatus comprising a framework, two platforms, one end of each platform being pivotally connected to the framework, the platforms being substantially parallel to one another and being pivoted at adjacent ends, a supporting member, adjustable in length, being located between the substantially parallel platforms and being pivotally connected at one end to the framework, a crossbar being detachably fitted at the other end of the supporting member and one or more selectively connectable means for retaining the supporting member in different desired angular positions, for movably interconnecting the two platforms whereby pivotal movement of one platform in one direction will simultaneously move the other platform in the opposite direction, or for connecting through said crossbar to a displaceable device whereby tractive force by a user will displace said device.
2. A trainiNg apparatus according to claim 1, in which said selectively connectible means comprises adjustable stays for retaining the supporting member in different desired angular positions.
3. A training apparatus according to claim 1, in which said selectively connectible means comprises adjustable cords for connection to the crossbar to movably interconnect the two platforms.
4. A training apparatus according to claim 3, further comprising hooks connected to the cords and lugs which are fastened to the underside of the handlebars of the platforms, the hooks and lugs being adapted to engage to form a connection.
5. A training apparatus according to claim 1, further comprising means detachably pivotally connecting the crossbar to the supporting member for pivoting in both the horizontal and vertical direction.
6. A training apparatus according to claim 1, in which the supporting member and the platforms are collapsible to lie in the plane of the framework.
7. A training apparatus according to claim 1, further comprising handlebars integral with the platforms.
8. A training apparatus according to claim 1, further comprising means including transverse axles pivotally connecting the platforms and the supporting member.
9. A training apparatus according to claim 1, in which said selectively connectible means comprises cords and the apparatus further comprises a rolling seat constituting the displaceable device, pulleys attached to the crossbar for receiving the cords and a foot support adapted to be detachably mounted on the supporting member.
US3792860A 1972-10-17 1972-10-17 Pivotal platform training apparatus with selectively connectible components Expired - Lifetime US3792860A (en)

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Cited By (53)

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US4477073A (en) * 1981-12-28 1984-10-16 Koch Richard K Exercise device for boardsailing
US4618140A (en) * 1983-11-30 1986-10-21 Brown Peter L Physical exercising apparatus
US4627610A (en) * 1985-04-01 1986-12-09 Rocket Industries, Inc. Multi-purpose exercising apparatus
US4659075A (en) * 1981-02-17 1987-04-21 Wilkinson William T Device for simulation of climbing
US4687197A (en) * 1983-05-02 1987-08-18 Lars Larsson Exercise apparatus with dual pivotal motion and cylinder resistance assembly
US4717145A (en) * 1986-01-15 1988-01-05 Diversified Products Corp. Kayak exerciser device
US4784121A (en) * 1988-01-26 1988-11-15 Brooks Lester N Knee exercising device
US4813667A (en) * 1986-05-08 1989-03-21 Weslo, Inc. Multipurpose exerciser
US4830362A (en) * 1988-04-13 1989-05-16 Bull John W Full body, shock-free aerobic and anaerobic exercising machine for use in the standing position
US4838543A (en) * 1988-10-28 1989-06-13 Precor Incorporated Low impact exercise equipment
US4909504A (en) * 1989-03-14 1990-03-20 Shin Len Hsin Spring Co., Ltd. Multipurpose body exerciser
WO1990006156A1 (en) * 1988-11-29 1990-06-14 Floyd Sawdon Combined exercise assembly
US4943051A (en) * 1986-05-27 1990-07-24 Don Haskins Human energy transmission device
US4951942A (en) * 1989-05-22 1990-08-28 Walden Jerold A Multiple purpose exercise device
US5054770A (en) * 1988-04-13 1991-10-08 Bull John W Shock-free aerobic and anaerobic exercising machine for use in the standing position
US5108093A (en) * 1986-05-08 1992-04-28 Weslo, Inc. Multipurpose exerciser
US5135447A (en) * 1988-10-21 1992-08-04 Life Fitness Exercise apparatus for simulating stair climbing
US5230676A (en) * 1992-12-17 1993-07-27 Juris Terauds Methods for using a combination exerciser and baggage carrier
US5230674A (en) * 1992-12-17 1993-07-27 Juris Terauds Combination exerciser and baggage carrier
US5368534A (en) * 1994-03-31 1994-11-29 Gerenz; Peter Exerciser system and method for providing coordinated body workout
US5518470A (en) * 1995-08-15 1996-05-21 Piaget; Gary D. Aerobic exercise apparatus with pivoting foot treadles and handlebar
US5527245A (en) * 1994-02-03 1996-06-18 Icon Health & Fitness, Inc. Aerobic and anaerobic exercise machine
US5565002A (en) * 1993-03-19 1996-10-15 Stairmaster Sports/Medical Products, L.P. Exercise apparatus
US5595556A (en) * 1992-09-30 1997-01-21 Icon Health & Fitness, Inc. Treadmill with upper body system
US5645516A (en) * 1994-06-15 1997-07-08 Foster; Betty J. Therapeutic lower extremity exerciser and foot rest
US5733232A (en) * 1996-04-17 1998-03-31 Hsu; Hank Multi-purpose exercise machine
US5855539A (en) * 1996-05-14 1999-01-05 Wise; Raymond Kinesiology testing apparatus
GB2336791A (en) * 1998-05-01 1999-11-03 Lai Shu Chiung Multi-functional exerciser
US6077202A (en) * 1998-10-16 2000-06-20 Gray; Gary W. Exercise device
US20020035017A1 (en) * 2000-05-03 2002-03-21 Victor Pertegaz-Esteban Exercise equipment with multi-positioning handles
US6620080B1 (en) 1997-10-17 2003-09-16 True Fitness Technology, Inc. Exercise device
WO2003092820A2 (en) * 2002-05-01 2003-11-13 Daniel Bartal Ltd. Handlebar with adjustable cable
US6679813B1 (en) 1997-10-17 2004-01-20 True Fitness Technology, Inc. Exercise device
US20040162193A1 (en) * 1997-10-17 2004-08-19 Gary Gray Exercise device for side-to-side stepping motion
US20040192514A1 (en) * 2003-02-28 2004-09-30 Nautilus, Inc. Exercise device with treadles
US6849034B2 (en) 2003-05-23 2005-02-01 Paul William Eschenbach Turnabout climber exercise apparatus
US20050209060A1 (en) * 2004-02-26 2005-09-22 Nautilus, Inc. Exercise device with treadles
US20050209059A1 (en) * 2003-02-28 2005-09-22 Nautilus, Inc. Upper body exercise and flywheel enhanced dual deck treadmills
US7083554B1 (en) 1997-02-27 2006-08-01 Nautilus, Inc. Exercise machine with infinite position range limiter and automatic belt tensioning system
US20060223680A1 (en) * 2003-08-11 2006-10-05 Nautilus, Inc. Combination of treadmill and stair climbing machine
US20070049470A1 (en) * 2005-08-29 2007-03-01 Johnson Health Tech Co., Ltd. Rapid circuit training machine with dual resistance
GB2430392A (en) * 2005-09-21 2007-03-28 Anthony John Scales Exercising machine
US20080280738A1 (en) * 2007-05-11 2008-11-13 John Brennan Physical therapy rehabilitation apparatus
US20080318744A1 (en) * 2007-06-22 2008-12-25 Barra Maurizio M Portable Exercise Unit
US20100009823A1 (en) * 2008-07-10 2010-01-14 Gil Reyes Single step resistance training device
US20100062904A1 (en) * 2003-02-28 2010-03-11 Nautilus, Inc. System and method for controlling an exercise apparatus
US20100075812A1 (en) * 2003-02-28 2010-03-25 Nautilus, Inc. Dual deck exercise device
US7713181B1 (en) * 2009-01-02 2010-05-11 Lorne Durham Versatile abdominal exercise bed
US7731636B2 (en) 2006-05-05 2010-06-08 Nautilus, Inc. Resistance system for an exercise device
US20110028281A1 (en) * 2009-07-17 2011-02-03 Ish Iii A Buell Resistance Training Apparatus and Methods
USRE42698E1 (en) 2001-07-25 2011-09-13 Nautilus, Inc. Treadmill having dual treads for stepping exercises
US8272996B2 (en) 2007-03-30 2012-09-25 Nautilus, Inc. Device and method for limiting travel in an exercise device, and an exercise device including such a limiting device
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Cited By (92)

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Publication number Priority date Publication date Assignee Title
US4659075A (en) * 1981-02-17 1987-04-21 Wilkinson William T Device for simulation of climbing
US4477073A (en) * 1981-12-28 1984-10-16 Koch Richard K Exercise device for boardsailing
US4687197A (en) * 1983-05-02 1987-08-18 Lars Larsson Exercise apparatus with dual pivotal motion and cylinder resistance assembly
US4618140A (en) * 1983-11-30 1986-10-21 Brown Peter L Physical exercising apparatus
US4627610A (en) * 1985-04-01 1986-12-09 Rocket Industries, Inc. Multi-purpose exercising apparatus
US4717145A (en) * 1986-01-15 1988-01-05 Diversified Products Corp. Kayak exerciser device
US4813667A (en) * 1986-05-08 1989-03-21 Weslo, Inc. Multipurpose exerciser
US5108093A (en) * 1986-05-08 1992-04-28 Weslo, Inc. Multipurpose exerciser
US4943051A (en) * 1986-05-27 1990-07-24 Don Haskins Human energy transmission device
US4784121A (en) * 1988-01-26 1988-11-15 Brooks Lester N Knee exercising device
US4830362A (en) * 1988-04-13 1989-05-16 Bull John W Full body, shock-free aerobic and anaerobic exercising machine for use in the standing position
US4934690A (en) * 1988-04-13 1990-06-19 Bull John W Shock-free aerobic and anaerobic exercising machine for use in the standing position
US5054770A (en) * 1988-04-13 1991-10-08 Bull John W Shock-free aerobic and anaerobic exercising machine for use in the standing position
US5135447A (en) * 1988-10-21 1992-08-04 Life Fitness Exercise apparatus for simulating stair climbing
US4838543A (en) * 1988-10-28 1989-06-13 Precor Incorporated Low impact exercise equipment
WO1990006156A1 (en) * 1988-11-29 1990-06-14 Floyd Sawdon Combined exercise assembly
US4909504A (en) * 1989-03-14 1990-03-20 Shin Len Hsin Spring Co., Ltd. Multipurpose body exerciser
WO1990014131A1 (en) * 1989-05-22 1990-11-29 Jerold Allan Walden Multiple purpose exercise device
US4951942A (en) * 1989-05-22 1990-08-28 Walden Jerold A Multiple purpose exercise device
US5595556A (en) * 1992-09-30 1997-01-21 Icon Health & Fitness, Inc. Treadmill with upper body system
US5230676A (en) * 1992-12-17 1993-07-27 Juris Terauds Methods for using a combination exerciser and baggage carrier
US5230674A (en) * 1992-12-17 1993-07-27 Juris Terauds Combination exerciser and baggage carrier
US5565002A (en) * 1993-03-19 1996-10-15 Stairmaster Sports/Medical Products, L.P. Exercise apparatus
US5527245A (en) * 1994-02-03 1996-06-18 Icon Health & Fitness, Inc. Aerobic and anaerobic exercise machine
US5368534A (en) * 1994-03-31 1994-11-29 Gerenz; Peter Exerciser system and method for providing coordinated body workout
US5645516A (en) * 1994-06-15 1997-07-08 Foster; Betty J. Therapeutic lower extremity exerciser and foot rest
US5575739A (en) * 1995-08-15 1996-11-19 Piaget; Gary D. Aerobic exercise apparatus with pivoting foot treadles and handlebar
US5518470A (en) * 1995-08-15 1996-05-21 Piaget; Gary D. Aerobic exercise apparatus with pivoting foot treadles and handlebar
US5733232A (en) * 1996-04-17 1998-03-31 Hsu; Hank Multi-purpose exercise machine
US5855539A (en) * 1996-05-14 1999-01-05 Wise; Raymond Kinesiology testing apparatus
US7083554B1 (en) 1997-02-27 2006-08-01 Nautilus, Inc. Exercise machine with infinite position range limiter and automatic belt tensioning system
US20040162193A1 (en) * 1997-10-17 2004-08-19 Gary Gray Exercise device for side-to-side stepping motion
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