Closure fasteners – Seals – Shiftable catch shackle operated
Patent
1974-10-23
1976-03-23
Moore, Richard E.
Closure fasteners
Seals
Shiftable catch shackle operated
292327, E05C 1918
Patent
active
039456714
ABSTRACT:
A preferably cylindrical body has a closed bottom bolt opening with an internal spring pressed plunger constantly urged at an angle less than 90.degree. to the bolt opening into interference partially within the bolt opening and retained against such movement by a selectively movable plug within the bolt opening. A bolt preferably having an enlarged head has a recess at an opposite end portion formed generally transversely therein. The bolt end portion is inserted into the body bolt opening displacing the plug further inwardly into the bolt opening and ultimately aligning the bolt end portion recess with the body plunger causing positive interengagement therebetween and permanently preventing withdrawal of the bolt from the body. An annular shoulder of the bolt may engage a body surface at the outer end of the bolt opening during such interengagement to permanently block off the body bolt opening.
REFERENCES:
patent: 409034 (1889-08-01), Gillespie
patent: 1332291 (1920-03-01), Goodell
patent: 1618851 (1927-02-01), Thunberg et al.
patent: 1916412 (1933-07-01), Buchanan
patent: 1930560 (1933-10-01), Keidel
patent: 3698748 (1972-10-01), Petri
patent: 3810703 (1974-05-01), Pasbrig
Emhart Corporation
Moore Richard E.
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