Gerald W Peterson

US Patent:

45050589, Mar 19, 1985

Filed:

Feb 8, 1984

Appl. No.:

6/578201

Inventors:

Gerald A. Peterson - Moraga CA

International Classification:

E02F 928

US Classification:

37142A

Abstract:

An excavating tooth has a blade of substantially constant thickness with a transverse shoulder at its inner end and a longitudinal gusset. The tooth terminates in a reduced diameter spindle and a button with a shoulder on its forward face. The adapter has a recess to receive the tooth, the forward end of the adapter receiving the thrust of the tooth because the transverse shoulder bears thereagainst. A top to bottom opening in the adapter intersects the recess at the spindle. A pair of grooves are formed on the outside edges of the opening with projections extending inward from the outer walls of the grooves. A retainer is formed of round cross-section wire and slides in the grooves between locked and unlocked positions, the diameter of the wire being less than the width of the grooves. The retainer is symmetrical about its longitudinal center line, having a slightly upward bowed top connector and legs depending from either end of the connector. Each leg has, in order, a reverse bend joining the leg to the connector, an upper straight section, an outward-downward slanted section, a lower straight section and a lower terminal.

US Patent:

39341151, Jan 20, 1976

Filed:

Sep 25, 1973

Appl. No.:

5/400595

Inventors:

Gerald H. Peterson - San Francisco CA

International Classification:

H05B 302
B26D 710

US Classification:

219223

Abstract:

Thin material such as hair or paper is severed by a singeing process using the heated and opposed edges of two thin strips of metal with the edges closely spaced apart to form a slot and with the edges heated by high frequency electrical current or currents flowing along such strips and exhibiting therewith and therebetween skin and proximity effects, and by moving such strips relative to such material so that the material to be singed or severed enters such slot and is therein singed to effect severance by such singeing.