Cavity-creating tool for foaming operation

Details Cavity-creating tool for foaming operation Cavity-creating tool for foaming operation

2007-09-11

2007-09-11

Davis, Robert (Department: 1722)

Plastic and nonmetallic article shaping or treating: processes

Including step of generating heat by friction

C264S142000, C264S177160, C264S180000, C264S183000, C264S185000, C425S127000, C425S468000, C425SDIG010

Reexamination Certificate

active

11327120

ABSTRACT:
A tool creates a fastener-receiving cavity within a foam-filled structure that includes a panel with a slot for receiving the fastener and foam backing that is cast in place against on the underside of the panel. The tool includes a clip and a plunger. The clip is inserted into the slot and has legs joined by a hinge. The plunger is inserted between the legs to spread the legs and fills the space between the spread-apart legs that would otherwise become filled with foam. After the foam is cast, the plunger is removed so that the legs can be returned to a closely spaced relationship and the clip is removed from the slot, leaving a cavity for subsequently receiving a fastener.

REFERENCES:
patent: 2644997 (1953-07-01), Billings
patent: 3052945 (1962-09-01), Cummings
patent: 3136022 (1964-06-01), Dohren
patent: 3589664 (1971-06-01), Middlestadt
patent: 4594205 (1986-06-01), Wunderlich et al.

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