Room heat recirculator
Description
FIG. 1 is a front elevational view of a room heat recirculator, showing my new design;
FIG. 2 is a rear elevational view thereof;
FIG. 3 is a side elevational view thereof, the opposite side being a mirror image of the side shown;
FIG. 4 is a top plan view thereof; the bottom being the same as the top shown; and
FIG. 5 is a cross sectional view taken on line 5--5 of FIG. 1.
Referenced Cited
U.S. Patent Documents
Foreign Patent Documents
1170551 | February 1916 | Marty |
2528650 | November 1950 | Graham |
3173353 | March 1965 | Watkins |
3347025 | October 1967 | Wiley |
3750557 | August 1973 | Peill et al. |
3827342 | August 1974 | Hughes |
3973479 | August 10, 1976 | Whiteley |
4053732 | October 11, 1977 | Carter |
4064203 | December 20, 1977 | Cox |
4136606 | January 30, 1979 | Wolbrink |
4152973 | May 8, 1979 | Peterson |
2275734 | June 1974 | FRX |
2296818 | December 1974 | FRX |
Patent History
Patent number: D254391
Type: Grant
Filed: Nov 2, 1977
Date of Patent: Mar 4, 1980
Inventor: Lawrence G. Montecalvo (Warren, OH)
Primary Examiner: James R. Largen
Attorney: Michael Williams
Application Number: 5/847,728
Type: Grant
Filed: Nov 2, 1977
Date of Patent: Mar 4, 1980
Inventor: Lawrence G. Montecalvo (Warren, OH)
Primary Examiner: James R. Largen
Attorney: Michael Williams
Application Number: 5/847,728
Classifications
Current U.S. Class:
D23/151
International Classification: D2304;
International Classification: D2304;