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Propane fired heater for defrosting frozen pipes or the like
D315597 Propane fired heater for defrosting frozen pipes or the like
Patent Drawings:Drawing: D315597-2    Drawing: D315597-3    Drawing: D315597-4    
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(3 images)

Inventor: Botheras, et al.
Date Issued: March 19, 1991
Application: 07/247,305
Filed: September 21, 1988
Inventors: Botheras; Del (Sundre, Alberta), Colenutt; Wayne C. (Sundre, Alberta, CA)
Assignee:
Primary Examiner: Gandy; James M.
Assistant Examiner: Lichtenstein; Lisa
Attorney Or Agent: Davis, Bujold & Streck
U.S. Class: D23/332
Field Of Search: D23/314; D23/332; 219/366; 219/367; 219/368
International Class:
U.S Patent Documents: 3189727; 3692977; 4511787
Foreign Patent Documents:
Other References: Grainger's Wholesale Net Price Cat., Spring 1986, p. 1178 A Propane Convection Heater No. 2E427, right lower side of page..









Abstract:
Claim: The ornamental design for a propane fired heater for defrosting frozen pipes or the like, as shown.
Description: FIG. 1 is a top, front, and left side perspective view of a propane fired heater for defrosting frozen pipes or the like, showing our new design;

FIG. 2 is a top plan view thereof on a reduced scale;

FIG. 3 is a left side elevation view thereof on a reduced scale;

FIG. 4 is a front elevation view thereof on a reduced scale;

FIG. 5 is a right side elevation view thereof on a reduced scale;

FIG. 6 is a rear elevation view thereof on a reduced scale; and

FIG. 7 is a bottom plan view thereof on a reduced scale.

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