Spring loaded, adjustable walking door hinge

Details Spring loaded, adjustable walking door hinge Spring loaded, adjustable walking door hinge

1976-04-19

1977-01-04

Larkin, G. V.

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

Sash balances

Spring

E05D 708

Patent

active

040005402

ABSTRACT:
Two door pivot units are provided for causing radially outward or walking door motion when the door undergoes angular opening motion. In a first pivot unit, a cam follower is pushed with increasing force against a cam as the door opens by an adjustable biasing device. In a second unit, an arrowhead-shaped cam causes radially outward door movement similar to the motion caused by the first unit.

REFERENCES:
patent: 3391723 (1968-07-01), Kirby
patent: 3866658 (1975-02-01), Smith
patent: 3895412 (1975-07-01), Johnson

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