Exercise devices – User manipulated force resisting apparatus – component... – Utilizing resilient force resistance
Patent
1996-01-19
1997-07-01
Clark, Jeanne M.
Exercise devices
User manipulated force resisting apparatus, component...
Utilizing resilient force resistance
482122, 482125, A63B 2105, A63B 2312
Patent
active
056431600
ABSTRACT:
A chest developer which includes a cylinder having a close end made with air holes and an open end sealed with a sealing end cap; and arched fixed handle fixedly secured to the close end outside the cylinder, an arched movable handle; a piston rod having one end fixedly mounted with a piston movable in the cylinder and an opposite end extending out of the sealing end cap and fixedly secured to the arched movable handle; a compression spring mounted within the cylinder and stopped between the piston and the sealing end cap, the compression spring being compressed when the arched movable handle is pulled outwards relative to the arched fixed handle.
REFERENCES:
patent: 767008 (1904-08-01), Pelletier et al.
patent: 4148479 (1979-04-01), Spector
patent: 4290599 (1981-09-01), Berger
patent: 4351527 (1982-09-01), Crisp, Jr.
patent: 5476435 (1995-12-01), Nimmo
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