Collapsible weight system

Details Collapsible weight system Collapsible weight system

1988-06-06

1989-08-08

Apley, Richard J.

Undertaking

A63B 1300

Patent

active

048545767

ABSTRACT:
A collapsible weight system provides a collapsible/expandable diaphragm for containing a liquid which includes a closed hub disposed on one end thereof and an open hub disposed on another end thereof. A tubular cap is provided to seal the collapsible/expandable diaphragm while engaging both the closed hub and the open hub to provide axial support of the diaphragm. A pin locking system is provided in order to lock the tubular cap to a bar for lifting the weights. When the bar is engaged and locked with the cap, it extends therethrough providing additional strength and support for the collapsible/expandable diaphragm.

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patent: 4199140 (1980-04-01), Feretti
patent: 4492313 (1985-01-01), Touzani
patent: 4695051 (1987-09-01), Jenison

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