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Publication numberUS2068578 A
Publication typeGrant
Publication dateJan 19, 1937
Filing dateMay 15, 1935
Priority dateMay 15, 1935
Publication numberUS 2068578 A, US 2068578A, US-A-2068578, US2068578 A, US2068578A
InventorsJoseph Stronach Edwin
Original AssigneeJoseph Stronach Edwin
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Exercising device
US 2068578 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)

Jan- 19, 1937-` E. JJ'sTRoNAcl-l 2,068,578

' EXERCISING DEVICE Filedv AM; f.l,l;5.. 1935 INVENTOR.


Patented Jan. 19, 1937 UNITED srArs ERATE? FFICE 1 Claim.

This invention relates to an exercising device.

It is an object of this invention to provide an improved exercising device which is relatively simple and inexpensive in construction and efcient in use.

Another object of the present invention is to provide a new and improved exercising device embodying novel means for varying or regulating the resistance offered to movement of the same by the operator.

Other objects will appear hereinafter.

'I'he invention consists in the novel combination and arrangement of parts to be hereinafter described and claimed.

The invention will be best understood by reference to the accompanying drawing, showing the preferred form of construction and in which:

Fig. 1 is a side elevational view, partly in section, showing a preferred form of the new exercising device;

Fig. 2 is a fragmentary vertical sectional View of the same, on line 2-2 in Fig. 1; and

Fig. 3 is a transverse or horizontal sectional view on line 3-3 in Fig. 2.

A preferred form of the new exercising device is illustrated in the drawing, is therein generally indicated at I0, and comprises a supporting base II upon which is mounted a cylinder I2 which is adapted to contain a quantity of any suitable substantially incompressible liquid such, for example, as oil, water.

Slidably mounted in the cylinder I2 is a piston I3 in which are provided openings I4.

The piston I3 is carried by a piston rod I5 and this piston rod I5 has an end portion I6 which projects exteriorly of the cylinder I2 above the upper end of the latter; and attached to the upper end portion I6 of the piston rod I5 is a tubular member I'I in which is slidably mounted a second tubular member I8. These tubular members I'I and I8 are telescopically adjustable relative to each other and are latchable in a preselected position by means of an adjustable element in the form of a thumb screw I 9 which engages in a groove 21 which is formed in the tubular member I8.

Slidably mounted in the tubular member I8 is a portion 20 which has a hand grip portion 2| and this handle member 2li- ZI and the tubular member I8 are telescopically adjustable relative to each other by means of a thumb screw 22, which is adapted to engage a groove 28 which is formed in the portion 20 of the handle member 2li-2|.

Mounted on the cylinder I2 is a by-pass tube Operation In the use of the new exercising device a suitable incompressible flud such, for example, as oil, water or the like, may be arranged in the cylinder I2 and the extensions I 7, I8, and 2U of the piston rod I5 may be adjusted to any desired predetermined height, suitable to the height of the operator, whereupon the extensible parts I'I-IB- and 2|] may be latched in a preselected pgsition by means of the thumb screws I9 and 2 The vertical shaft I'I-IS-Z and the piston rod I5 and its attached piston I4 may then be operated up and down in the cylinder I2 by alternately raising and lowering the handle grip 2|; and during the down stroke of the piston I3 the liquid in the cylinder I2 will travel through the openings I4,

The resistance offered to the movement of the piston I3 in the cylinder I2 may be regulated to suit the operator of the device by adjusting the valve 26 in the by-pass 25 which is normally closed by the valve 26, the ports I4 in the piston I3 normally allowing the liquid in the cylinder I2 to pass therethrough with sumcient speed to permit operation of the device by the average person without diiiiculty. However, if it is desired, for example, to decrease the resistance offered to the movement of the piston I3 in the cylinder I2, the valve 26 may be partially or entirely opened, therebyallowing the liquid in the cylinder I2 to ow through the by-pass 25 into the upper area of the cylinder I2, on the down stroke of the piston, and to flow in the opposite direction, that is, into the lower area of the cylinder I2, on the upward stroke of the piston.

The present exercising device is particularly useful in exercising the abdominal and back muscles and the ready adjustment of the eective length of the vertical shaft or piston rod I5-I 1-I8-20, together with the by-pass 25 and valve 26, permit adjustment of the device to the various needs of different persons.

While I have illustrated and described the preferred form of construction for carrying my invention into eiect, this is capable of variation and modication, without departing from the spirit of the invention. I, therefore, do not wish to be limited to the precise details of construction set forth, but desire to avail myself of such variations and modifications as come within the scope of the appended claim.

Having thus described my invention what I claim as new and desire to protect by Letters Patent is:

In an exercising device, the combination of: a supporting base; a cylinder mounted upon said supporting base and adapted to contain a quantity of fluid or liquid; a piston slidable in the said cylinder and having openings extending axially therethrough for the passage of the said fluid or liquid; a piston rod attachedto the said piston; a vertically extending shaft attached to the said piston rod; a handle attached to the said shaft; a by-pass arranged exteriorly of the said cylinder; said by-pass opening at its upper end into the area of said cylinder disposed above the said piston and opening at its lower end into the area of the said cylinder disposed below the said piston; and a valve in the said by-pass for regulating the flow of the said fluid or liquid therethrough from the lower area of said piston to the upper area of the same and from one side of the said piston to the other or vice Versa; said valve being adjustable so as to vary the rate of flow of the said fluidvor liquid therethrough and thereby regulate the resistance offered to the operator of the said device in forcing the said piston either upwardly or downwardly in the said cylinder against the said fluid or liquid.


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2418037 *Feb 28, 1945Mar 25, 1947Westinghouse Air Brake CoStabilizing device
US2572339 *Oct 18, 1948Oct 23, 1951Helen HelmVibration actuated transfer device
US2664255 *Feb 14, 1949Dec 29, 1953Cons Vultee Aircraft CorpHydraulic locking mechanism
US2825563 *May 16, 1955Mar 4, 1958Roger S Health Equipment IncExercising machine
US2899685 *Nov 8, 1955Aug 18, 1959 bourcier de carbon
US2913245 *Sep 1, 1955Nov 17, 1959Landis Peter HAthletic tackling bags and the like
US3359802 *May 8, 1964Dec 26, 1967Sollenberger Carl EApparatus for bar-bell type exercises
US3369403 *Oct 23, 1965Feb 20, 1968Exotronic Systems LtdHydraulic muscle strength developing apparatus
US3465592 *Sep 14, 1965Sep 9, 1969James J PerrineIsokinetic exercise process and apparatus
US3495824 *Dec 19, 1966Feb 17, 1970Henri Alexandre CuinierFluid resistant type exercising device
US3512416 *Feb 28, 1968May 19, 1970Hohwart GeorgeSwimming apparatus
US3834696 *May 16, 1973Sep 10, 1974Sam RubinDouble-acting hydraulic exerciser
US3861215 *Oct 28, 1970Jan 21, 1975Robert F BradleyExercising apparatus simulating weight lifting
US3861677 *Sep 21, 1973Jan 21, 1975N R WheeldonExercisers
US3976057 *Dec 23, 1974Aug 24, 1976Clarence F. BatesJoint flexing apparatus
US4043332 *May 14, 1975Aug 23, 1977Nathan BlumbergConstant flow rate liquid medicament administering device
US4063726 *Apr 26, 1976Dec 20, 1977Wilson Robert JElectronically controlled hydraulic exercising system
US4254949 *Jun 12, 1978Mar 10, 1981Brentham Jerry DLeg curl exercising device
US4441708 *Sep 23, 1981Apr 10, 1984Brentham Jerry DDouble leg curl exercising device
US4448412 *Jul 20, 1981May 15, 1984Brentham Jerry DExercising device with double acting hydraulic cylinder
US4465274 *Sep 27, 1982Aug 14, 1984Davenport Dennis LHydraulic exercise device
US4480832 *Sep 30, 1982Nov 6, 1984Robert BulmashExercising apparatus
US4601467 *Oct 12, 1984Jul 22, 1986William GvoichValve module and apparatus therefor
US5346451 *Jan 28, 1993Sep 13, 1994Tunturi, Inc.Exercise apparatus with telescoping pole pieces
US5391130 *Feb 2, 1990Feb 21, 1995Green; Edward J.Leg exerciser
US5480366 *Mar 17, 1994Jan 2, 1996Harnden; Eric F.Stationary bicycle trainer
US5906565 *Apr 26, 1996May 25, 1999Hydroforce, Inc.Liquid resistance or therapy system for use with an exercise and/or therapy apparatus
US6077202 *Oct 16, 1998Jun 20, 2000Gray; Gary W.Exercise device
US6547705 *Dec 28, 2000Apr 15, 2003Simon S. C. YuExercising apparatus
US6620080Jun 16, 2000Sep 16, 2003True Fitness Technology, Inc.Exercise device
US6679813May 24, 2000Jan 20, 2004True Fitness Technology, Inc.Exercise device
US7097600Jun 3, 2004Aug 29, 2006True Fitness Technology, Inc.Exercise device
US7438670Sep 16, 2003Oct 21, 2008True Fitness Technology, Inc.Exercise device for side-to-side stepping motion
US20040162193 *Sep 16, 2003Aug 19, 2004Gary GrayExercise device for side-to-side stepping motion
US20040229733 *Jun 3, 2004Nov 18, 2004Gray Gary W.Exercise device
US20110130256 *Jul 20, 2008Jun 2, 2011Graham EvansExercise Apparatus
WO1990008572A1 *Feb 2, 1990Aug 9, 1990Sport Specific Inc.Leg exerciser
WO2002066115A2 *Dec 3, 2001Aug 29, 2002Simon Siu Chi YuExercising apparatus
WO2002066115A3 *Dec 3, 2001Oct 23, 2003Simon Siu Chi YuExercising apparatus
U.S. Classification482/113
International ClassificationA63B21/008
Cooperative ClassificationA63B21/0083, A63B23/12
European ClassificationA63B21/008B2