Collapsible weight system

Details Collapsible weight system Collapsible weight system

1988-12-19

1990-03-06

Apley, Richard J.

Undertaking

A63B 1300

Patent

active

049059920

ABSTRACT:
A collapsible weight system provides a collapsible/expandable diaphragm for containing a liquid which includes a closed hub disclosed 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.

REFERENCES:
patent: 325987 (1885-09-01), Sparks
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patent: 3781007 (1973-12-01), Baker et al.
patent: 4029312 (1977-06-01), Wright
patent: 4079236 (1978-02-01), Ionel
patent: 4193518 (1980-03-01), Holmes
patent: 4199140 (1980-04-01), Ferretti
patent: 4695051 (1987-09-01), Tenison

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