Pintle with adjustable spring tension motor

Details Pintle with adjustable spring tension motor Pintle with adjustable spring tension motor

1976-10-07

1978-02-14

Kee Chi, James

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

Sash balances

Spring

16 50, E05F 112

Patent

active

040730387

ABSTRACT:
A tension spring motor for use in a pintle or cartridge like container is employed to return hinged parts to an initial position after having been rotated to a second position. Door hinges are a typical example where a spring automatically returns the door to closed position after it has been opened. To vary the tension in the spring use is made of a pair of notched members housed within the pintle, one being a fixed member and the other being a movable member attached to the spring and rotatable to different positions of adjustment. A wrench hold in the movable member is accessible from the outside through a hole in the fixed member.

REFERENCES:
patent: RE6112 (1874-11-01), Joyce
patent: 1912289 (1933-05-01), March
patent: 3255484 (1966-06-01), MacDonald
patent: 3903567 (1975-09-01), Suska
patent: 3978551 (1976-09-01), Mochizuki

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