Torque modification apparatus for use with a door closer

Details Torque modification apparatus for use with a door closer Torque modification apparatus for use with a door closer

1987-12-17

1988-12-06

Silverberg, Fred A.

Miscellaneous hardware (e.g., bushing, carpet fastener, caster,

Closers

Spring and gear

16DIG10, 74517, E05F 110

Patent

active

047887427

ABSTRACT:
A torque modification device for use with a pocket door which is adaptable to modify the torque applied by a door closer to the door to increase the torque when the door approaches its fully latched condition.

REFERENCES:
patent: 1094306 (1914-04-01), Cross
patent: 1662417 (1928-03-01), Cook et al.
patent: 3004440 (1961-10-01), Pernik
patent: 4404863 (1983-09-01), James
patent: 4696500 (1987-09-01), Zunkel

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