Exercise devices – Gymnastic
Patent
1998-06-12
1999-12-07
Donnelly, Jerome W.
Exercise devices
Gymnastic
482 52, 482142, A63B 600
Patent
active
059974419
ABSTRACT:
The gymnastic equipment described herein is characterized by a rectangular platform which is preferably about 30-50 cm wide and about 75-150 cm long. Vertical supporting members are arranged at the four comers of the platform. A resilient elongated rope-like member is looped around the four supporting members and is height-adjustable. The height of the rope can be set so as to enable a combination of muscle exercises with simultaneous aerobic and/or choreographic workouts free of interruption. Particular skills for fixing the resilient rope on arms or legs are not necessary during the sequence of exercises. A securing device is attached to each supporting member to retain the member at the set height.
REFERENCES:
patent: 2119327 (1938-07-01), Gunnarson
patent: 2243943 (1941-06-01), Bunting
patent: 2269095 (1942-03-01), Davis
patent: 2603034 (1952-07-01), Whitlock
patent: 2726866 (1955-06-01), Nally
patent: 4478420 (1984-10-01), Sowards
patent: 5458551 (1995-10-01), Shenton
patent: 5697870 (1997-12-01), Osborn
Kranz Christoph
Kribben Toni
Donnelly Jerome W.
Nguyen Tam
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