Friction furnace
Description
FIG. 1 is a top plan view of a friction furnace, showing my new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a right side elevational view thereof;
FIG. 4 is a rear elevational view thereof; and
FIG. 5 is a left side elevational view thereof.
Referenced Cited
Patent History
Patent number: D297045
Type: Grant
Filed: Sep 16, 1985
Date of Patent: Aug 2, 1988
Inventor: Louis D. Powell (Des Moines, IA)
Primary Examiner: Catherine E. Kemper
Law Firm: Henderson & Sturm
Application Number: 6/776,608
Type: Grant
Filed: Sep 16, 1985
Date of Patent: Aug 2, 1988
Inventor: Louis D. Powell (Des Moines, IA)
Primary Examiner: Catherine E. Kemper
Law Firm: Henderson & Sturm
Application Number: 6/776,608
Classifications
Current U.S. Class:
Furnace (D23/329)