Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Headed fastener element with nut – washer – securing means or cap
Patent
1989-03-31
1990-12-04
Lindsey, Rodney M.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Headed fastener element with nut, washer, securing means or cap
411369, 411533, 411542, F16B 2100
Patent
active
049750089
ABSTRACT:
A threaded fastener assembly which includes a threaded fastener about which is securely disposed an axially movable washer with a resilient grommet fitted thereover. The threaded fastener assembly is adapted to be preassembled within a first apertured work piece such as, for example, a rocker arm cover which is to be mounted upon a second apertured work piece such as, for example, an engine block. The threaded fastener assembly is retainable within the first apertured work piece while holding the fastener in a freely axially movable configuration which permits the fastener to be moved into an elevated position relative to the washer and grommet so as to prevent the fastener from projecting through the bottom surface of the first work piece, thus preventing interference with other surfaces or the second workpieces, and the structure provides seals for preventing fluid from leaking through the apertures of the workpieces.
REFERENCES:
patent: 2915152 (1959-12-01), Graham
patent: 3301121 (1967-01-01), Newcomer
patent: 3500712 (1970-03-01), Wagner
patent: 3519279 (1970-07-01), Wagner
patent: 4732519 (1988-03-01), Wagner
Illinois Tool Works Inc.
Lindsey Rodney M.
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