Gas-fired boiler for central heating and hot water

Description

FIG. 1 is a front and right side perspective view of a gas-fired boiler for central heating and hot water, showing my new design;

FIG. 2 is a front and left side perspective view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a right side elevation view thereof, the opposite side being a mirror image of that shown;

FIG. 5 is a top plan view thereof;

FIG. 6 is a rear elevation view thereof; and

FIG. 7 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
D87553 August 1932 Teague
D177049 March 1956 Janis
D207139 March 1967 Jakobsson
D207615 May 1967 Clever et al.
D220332 March 1971 Myler
2508736 May 1950 Warden, Sr.
4756475 July 12, 1988 Vergne
Foreign Patent Documents
2327493 June 1977 FRX
190220 August 1986 JPX
Patent History
Patent number: D311950
Type: Grant
Filed: Dec 12, 1988
Date of Patent: Nov 6, 1990
Assignee: Potterton International Limited (Warwick)
Inventor: Michael J. Excell (Leamington Spa)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Lisa Lichtenstein
Law Firm: Abelman Frayne Rezac & Schwab
Application Number: 7/283,891
Classifications
Current U.S. Class: Boiler (D23/319)