Adjustable air inlet manifold for combined fireplace grate and heating unit
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Description
FIG. 1 is a perspective view of an adjustable air inlet manifold, showing my new design;
FIG. 2 is a top plan view;
FIG. 3 is a front elevational view;
FIG. 4 is a rear elevational view;
FIG. 5 is a bottom plan view, and
FIG. 6 is an end elevational view thereof.
The broken line representation of a combined fire place grate and heating unit in FIG. 1 is for purposes of illustration only.
Referenced Cited
U.S. Patent Documents
D77935 | March 1929 | Carlson |
D228728 | October 1973 | Bergstrom |
D240536 | July 1976 | Christophel |
D242543 | November 1976 | Betenbaugh, Jr. |
1747259 | February 1930 | Pierce |
3452737 | July 1969 | Pellegrino et al. |
3469570 | September 1969 | Wright |
3901212 | August 1975 | Stites |
3938496 | February 17, 1976 | Kampf et al. |
Patent History
Patent number: D247947
Type: Grant
Filed: Nov 10, 1976
Date of Patent: May 23, 1978
Assignee: Production Experts, Inc. (Cleveland, OH)
Inventor: Stanley Darwin Noll (Shaker Heights, OH)
Primary Examiner: James R. Largen
Attorney: William Isler
Application Number: 5/740,438
Type: Grant
Filed: Nov 10, 1976
Date of Patent: May 23, 1978
Assignee: Production Experts, Inc. (Cleveland, OH)
Inventor: Stanley Darwin Noll (Shaker Heights, OH)
Primary Examiner: James R. Largen
Attorney: William Isler
Application Number: 5/740,438
Classifications
Current U.S. Class:
D23/94
International Classification: D2303;
International Classification: D2303;