Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Having structure to restrict rotation of threaded – mating... – Comprising a thread lock
Patent
1998-06-01
1999-10-05
Wilson, Neill
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Having structure to restrict rotation of threaded, mating...
Comprising a thread lock
411237, 411270, 411354, 411935, F16B 1900, F16B 3936
Patent
active
059612657
ABSTRACT:
A locking apparatus includes an inner ring having a tapered outer shape and permitting a bolt of a fastener, with which construction elements are fastened, to pass therethrough, an outer plate formed with a tapered bore which receives the inner ring, a coil spring which urges the inner ring toward the outer plate, and a nut threadedly engaged with the bolt on the side close to an outer end of the coil spring. When an external force is applied to a construction so that the outer plate is displaced toward the nut, together with the construction element associated therewith, the outer plate applies a force, exerting in the direction axially of the bolt, to the inner ring. When receiving the force which has a component directed radially inwardly of the bolt, the inner ring is reduced in diameter to tighten the bolt, thereby preventing a further displacement of the outer plate and the construction element.
REFERENCES:
patent: 601249 (1898-03-01), Geise
patent: 1005227 (1911-10-01), Jones
patent: 1539348 (1925-05-01), Botscheller
patent: 2449846 (1948-09-01), Gilman
patent: 4684284 (1987-08-01), Bradley, Jr.
patent: 5015133 (1991-05-01), Arena
patent: 5081811 (1992-01-01), Sasaki
T. Kato Co., Ltd.
Wilson Neill
LandOfFree
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