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Publication numberUS1487631 A
Publication typeGrant
Publication dateMar 18, 1924
Filing dateNov 5, 1920
Priority dateNov 5, 1920
Publication numberUS 1487631 A, US 1487631A, US-A-1487631, US1487631 A, US1487631A
InventorsDavid E Wanger
Original AssigneeDavid E Wanger
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Exercising device
US 1487631 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

March 18 1924,

D. E. W GER E'XERCISING DEVICE Filed Nov. 5. 1920 i atented Mar. 18, 1924.


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Application filed. November 5, 1920. Serial No. 421,902.

T (4% whom it may concern:

Be it known that I. DAVID .VANGER, a citizen of the United States of America, and a resident of 'Winnetka, county of Cook,

State of Illinois, have invented certain new ance for use in physical culture exercises and and useful Improvements in. Esercising Devices, of which the following is a specification.

This invention relates to a simple applidesigned to keep the muscles of the arm and body in a natural state of tension during such exercises, the purpose being to improve the circulation and bring more muscles into action than normally.

The ob ects of the invention are accom- :10 designed to be encircled and compressed by the fingers of the user against the desired resistance. Overcoming this resistance results in effecting the desired tension of the muscles and maintaining the fingers spread properly as is also desired during the exercises.

The device consists of two hemispheres 1- and 2 secured together by a headed pin 3 seated in the conical recess l of the part 2. The head is movable in the cylindrical aperture 5 during compression and expansion of the ball. The resistance to compression is afforded by a plurality of springs 6 seated in the recesses 7.

I claim:

An exercising device comprisin a pair of semi-spherical members arranged in the term of a ball adapted to be gripped in one hand, a central guide post along which one of said members is movable toward the other, the opposed flat faces of said members having a plurality of annularly arranged recesses formed therein at equal radial distances from said guide post, the re-' cesses of one of said members being alined with those of the other member, and a plurality of compression springs arranged be tween said members and having their opposite ends seated in said alined recesses, said springs normally urging said members away from each other so as to spread the fingers of a hand encircling said ball by exerting pressure radially in substantially all directions.

Signed at Chicago this 3rd day of November, 1920.


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2664289 *Mar 13, 1952Dec 29, 1953William NittskoffExercising device
US4176837 *Aug 1, 1977Dec 4, 1979Jeffrey Lawrence WArm-wrestling apparatus
US4632383 *Jan 17, 1984Dec 30, 1986Kabushiki Kaisha Tsuzuki SeisakujoTraining tool for promoting grip
US4911437 *Feb 8, 1989Mar 27, 1990Schulkin William VExercise apparatus
US5147256 *Nov 12, 1991Sep 15, 1992Howard SilagyCombination individual finger and entire hand exerciser
US8684737Apr 1, 2011Apr 1, 2014Derrick A JordanHandgun trigger training device and method
U.S. Classification482/49, D21/684
International ClassificationA63B23/16, A63B23/035
Cooperative ClassificationA63B23/16, A63B21/05, A63B21/023
European ClassificationA63B23/16