Movable or removable closures – With means mounting closure for swinging – With biasing means
Patent
1976-11-09
1978-10-31
Kee Chi, James
Movable or removable closures
With means mounting closure for swinging
With biasing means
16189, 16185V, E05F 110, E05F 112
Patent
active
041226305
ABSTRACT:
A spring hinge for use with a gate having a frame constructed of channel member joined at the corner by corner keys. The hinge includes a rod having a right angle near one end which is threaded and an elongated slot in the other end. The slotted end is received in a bore in a corner of the gate frame and extends through a bore in the corner key. A helical spring received on the slotted end of the rod has one of its ends retained in the slot the other end is adapted to engage an adjacent wall of the channel member in which it is installed. When the gate is swung open the rod is fixed and one end of the spring is held therein while the other end turns with the gate thereby twisting the spring so as to store energy required to return the gate to the closed position.
REFERENCES:
patent: 438987 (1890-10-01), Coffman et al.
patent: 1016515 (1912-02-01), Nolte
patent: 1062437 (1913-05-01), Carlson
patent: 1126067 (1915-01-01), Nolte
patent: 3389501 (1968-06-01), Harmon
patent: 3728837 (1973-04-01), Kiefer, Jr.
patent: 4007919 (1977-02-01), Totten
Breiner A. W.
Chi James Kee
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