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US 4,392,904 AGranted
Sculptured lamp base
OwnerGregory A. Van Peltinventor
Life of this patent
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Abstract
A sculptured lamp base suitable for electric lamps is provided by utilizing a tightly-wound spiral of corrugated cardboard strip which is distended along a dimension parallel to its axis through forming upon a mold. The resulting sculptured lamp bases are capable of an infinite variety of shapes. Various components may be formed through utilization of this method and joined to form additional compound and return curves.
Claims3
In a method for the production of sculptured lamp bases, the steps comprising:
- winding a pre-slit strip of single wall corrugated cardboard around a central core threaded or otherwise designed for the attachment of lamp hardware to form a tightly wound spiral of a certain diameter;
- positioning said spiral on a mold comprising a plurality of ribs radiating around a vertical axis coincident with said central core;
- distending said spiral downwardly along said mold beginning with the centermost position of said spiral;
- tautly shaping the distended spiral to conform with the shape of the mold;
- applying glue to the molded spiral to the inner surfaces thereof and about the central core and the outermost edge of the spiral;
- repeating the prior steps to form a mating molded spiral;
- gluing the bottom of the first molded spiral to the top of the mating spiral;
- and coating the completed lamp base with glue.
5 more elements
Dependencies are inferred from the claim text.