Door assembly with augmented counterbalancing

Details Door assembly with augmented counterbalancing Door assembly with augmented counterbalancing

1993-04-09

1994-12-20

Cuomo, Peter M.

Movable or removable closures

With means mounting closure for swinging

With biasing means

16308, E05F 110

Patent

active

053736656

ABSTRACT:
A counterbalancing assembly and a non-vertically hinged door assembly incorporating the same include a first pair of torque rods directly connected between the door and a frame which produce a partial counterbalancing torque. A second pair of torque rods acting through cams produce an augmenting counterbalancing torque such that the sum of the partial and augmenting torques fully counterbalance the door throughout its arc of motion.

REFERENCES:
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patent: 2783495 (1957-03-01), Vigmostad
patent: 2939738 (1960-06-01), Lyons
patent: 3067453 (1962-12-01), Lyons
patent: 3516210 (1970-06-01), Jentoft et al.
patent: 4133074 (1979-01-01), Schack
patent: 4291501 (1981-09-01), Steinberg et al.
patent: 4419789 (1983-12-01), Matsui et al.
patent: 4873791 (1989-10-01), Lyons, Sr.
patent: 5136811 (1992-08-01), Lyons, Sr.
patent: 5205073 (1993-04-01), Lyons, Sr.
1991 Bilco Catalog (New Haven, Connecticut).

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