Self-closing hinge apparatus

Details Self-closing hinge apparatus Self-closing hinge apparatus

1978-10-25

1980-11-18

Krizmanich, George H.

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

Sash balances

Spring

E05F 106

Patent

active

042337089

ABSTRACT:
A self-closing hinging apparatus includes an upper hinge, a lower hinge and a reinforcing bar welded to both the upper hinge and the lower hinge to maintain them in proper alignment. The leaves of the lower hinge are longer than the leaves of the upper hinge so that the unhinged end of a gate to which the self-closing hinging apparatus is attached is higher when the gate is open than when the gate is closed. The action of gravity on the weight of the gate therefore causes the gate to self-close.

REFERENCES:
patent: 129209 (1872-07-01), Bushnell
patent: 823443 (1906-06-01), Sandham
patent: 1225899 (1917-05-01), Weber
patent: 2708286 (1955-05-01), Tollefson
patent: 3289988 (1966-12-01), McKenney et al.
patent: 4136641 (1979-01-01), Hoffman

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