Calf cruncher exercise equipment

Details Calf cruncher exercise equipment Calf cruncher exercise equipment

1995-02-15

1995-10-31

Crow, Stephen R.

Exercise devices

User manipulated force resisting apparatus, component...

Utilizing resilient force resistance

482904, 482 92, A63B 2102

Patent

active

054625084

ABSTRACT:
An exercise apparatus is disclosed having a pair of laterally spaced clamps adjustably secured to the upper edges of a door frame opening. A shaft depends downwardly from each clamp and the shafts are connected together by a horizontal bar. The shafts have extending sliding shaft portions with adjustable tension portions connected to each sliding shaft for resisting upward movement of the sliding shafts. The sliding shafts include lower ends having concavely curved shoulder engaging portions, wherein a user's upward movement is resisted by the tension portions of the sliding shafts.

REFERENCES:
patent: 3118441 (1964-01-01), George
patent: 4372551 (1983-02-01), Yurdin
patent: 4844448 (1989-07-01), Niznik
patent: 5033741 (1991-07-01), Ganzer

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