Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Headed fastener element with nut – washer – securing means or cap – Cap over the head
Patent
1989-02-22
1990-02-13
Gall, Lloyd A.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Headed fastener element with nut, washer, securing means or cap
Cap over the head
411431, F16B 3714
Patent
active
049002066
ABSTRACT:
A cover of synthetic resin is formed within a stepped recess of a nut adjacent the upper end of the internally threaded portion by injection molding. The cover includes a ring-like mounting frame positioned in the stepped recess, and a covering plate positioned inside the ring-like mounting frame and connected to it by a hinge portion of the cover. The ring-like mounting frame have an integral portion provided at the lower portion of the frame and firmly engaging a portion of the inner surface of the internally threaded portion.
REFERENCES:
patent: 2348308 (1944-05-01), Richardson
patent: 3299933 (1967-01-01), Akashi
patent: 3635272 (1972-01-01), Scheffer
patent: 3726178 (1973-04-01), Dimitry
patent: 4214505 (1980-07-01), Aimar
patent: 4600343 (1986-07-01), Frerejacques
Ide Masaaki
Kazino Hiroshi
Gall Lloyd A.
K. K. Aoyama Seisakusho
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