Gas-fired boiler for central heating and hot water
Latest Potterton International Limited Patents:
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
Foreign 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 |
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
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)