Metal working – Method of mechanical manufacture – Assembling or joining
Patent
1980-06-05
1982-04-20
Moon, Charlie T.
Metal working
Method of mechanical manufacture
Assembling or joining
29460, 29526R, 10 86R, 24217R, 24305, 264 465, 411116, 411180, 411526, 411528, B23P 300, B23P 2500, F16B 3704
Patent
active
043251781
ABSTRACT:
A screw anchoring device and method for preassembled aperture sealing attachment with an apertured panel to confine insulating material foamed in place between the panel and a spaced wall. The screw anchoring device includes a flat portion having a central helical screw receiving impression with a retained knock-out central area capable of being displaced by a screw. The device is secured to the apertured panel with a screw receiving impression overlying the panel aperture. The screw anchor device has one or more wing portions formed integrally with the flat portion, said wing portions diverging from the plane of the flat portion in a direction away from the screw receiving impression and adapted to be imbedded in the foamed insulating material. In performing the method, a utility component is placed on the opposite side of the panel from the screw anchoring device overlying the panel aperture and a screw is passed first through the utility component then through the panel aperture and then through the screw anchoring device whereby the knock-out portion of the device is displaced and the screw is retained in the central helical screw receiving impression.
REFERENCES:
patent: 2775917 (1957-01-01), Ferguson
patent: 3264699 (1966-08-01), Knowlton
patent: 3281522 (1966-10-01), Anisfield
patent: 3334410 (1967-08-01), Forward
patent: 3369336 (1968-02-01), Buzicky
patent: 3383440 (1968-05-01), Chaldekas
patent: 3802476 (1974-04-01), Hoadley
patent: 3826458 (1974-07-01), Fisher
patent: 3917206 (1975-11-01), Fisher
patent: 4040463 (1977-08-01), Petrus
patent: 4279341 (1981-07-01), Pleickhardt
General Electric Company
Moon Charlie T.
Reams Radford M.
Weidner Frederick P.
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