Oil burner preheater unit
Description
FIG. 1 is a perspective view of the oil burner preheater unit embodying the design of the present invention;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a rear elevational view thereof;
FIG. 4 is a side elevational view thereof;
FIG. 5 is a side elevational view thereof;
FIG. 6 is a top plan view thereof; and,
FIG. 7 is a bottom plan view thereof.
Referenced Cited
U.S. Patent Documents
Other references
D190846 | July 1961 | Ellefson |
3604891 | September 1971 | Cohen |
4541900 | September 17, 1985 | Mase |
4563572 | January 7, 1986 | Hager |
- Fuel and Oil Heat, Feb. 1961, p. 37, Fuel Oil Preheater. The Picture Book of Symbols, .COPYRGT.1956, p. 20, Fixed Star, bottom right side of page.
Patent History
Patent number: D342131
Type: Grant
Filed: Jul 19, 1991
Date of Patent: Dec 7, 1993
Inventor: Lloyd J. Westenberg (Queens, NY)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Lisa Lichtenstein
Attorney: Terry M. Gernstein
Application Number: 7/732,695
Type: Grant
Filed: Jul 19, 1991
Date of Patent: Dec 7, 1993
Inventor: Lloyd J. Westenberg (Queens, NY)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Lisa Lichtenstein
Attorney: Terry M. Gernstein
Application Number: 7/732,695
Classifications
Current U.S. Class:
Oil Type (D23/416)