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US 4,473,946 AGranted
Pyrographic iron tip
OwnerRichard L. Hillinventor
Life of this patent
Estimating the term…
Abstract
A pyrographic iron for sculpting fine feather barbs on a realistic wooden bird carving uses interchangeable tips slide fitting on the irons. The tips have a head with a flat surface tapered toward one or two outer edges, the surface having from 3 to 100 serrations per inch extending outwardly on the head to the outward edge or edges. The serrations form crests and valleys, the crests charring the barb lines and the valleys limiting the depth of charring.
Claims19
A tip for a pyrographic iron, said tip comprising:
- a body fitting on the iron and having a longitudinal axis;
- and
- a burning head on the body including a flat surface facing away from the body at an acute angle to the axis of the body and having a plurality of parallel serrations extending outwardly of the head to at least one substantially straight outer edge, the serrations forming angular charring crests and valleys which limit the depth of marking charred lines in a heat-oxidizable material.
Dependencies are inferred from the claim text.