Friction furnace
Description
FIG. 1 is a top plan view of a friction furnace showing my new design;
FIG. 2 is a left side elevational view thereof;
FIG. 3 is a front elevational view thereof;
FIG. 4 is a right side elevational view thereof; and
FIG. 5 is a rear elevational view thereof.
Referenced Cited
Patent History
Patent number: D300772
Type: Grant
Filed: Sep 4, 1986
Date of Patent: Apr 18, 1989
Inventor: Louis D. Powell (Des Moines, IA)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Brian N. Vinson
Law Firm: Henderson & Sturm
Application Number: 6/904,220
Type: Grant
Filed: Sep 4, 1986
Date of Patent: Apr 18, 1989
Inventor: Louis D. Powell (Des Moines, IA)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Brian N. Vinson
Law Firm: Henderson & Sturm
Application Number: 6/904,220
Classifications
Current U.S. Class:
Furnace (D23/329)