Electricity: conductors and insulators – Covers or face plates
Patent
1986-07-25
1987-04-14
Smith, Gary L.
Electricity: conductors and insulators
Covers or face plates
411378, 411411, 411501, 411908, H02G 314, F16B 3500
Patent
active
046580883
ABSTRACT:
A self-threading polymeric fastener and blank therefor which can be used, for example, to support a wall plate over an electrical outlet or switch. The fastener blank comprises three portions, all integrally molded together, including a slotted head, a substantially cylindrical shank and a tapered tip. A helical thread is formed on the shank and tip by deforming the outer surfaces thereof without removing any significant amount of polymeric material therefrom. This is accomplished by rotating the tip and shank in a helically threaded bore, such as that provided in an outlet or switch. The polymeric fastener blank can be integrally molded with a polymeric wall plate to make their colors identical.
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Allan B. Dove, Steel Wire Handbook, vol. 3, 1972, pp. 452-455.
Gartland, Jr. Albert J.
Sandor James A.
Farley Walter C.
Goodman Alfred N.
Harvey Hubbell Incorporated
Presson Jerry M.
Smith Gary L.
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