Heat exchanger core
FIG. 1 is a front view of a heat exchanger core showing my new design;
FIG. 2 is a rear view of the heater core of FIG. 1;
FIGS. 3 and 4 are respectively end views of the heater core of FIG. 1;
FIGS. 5 and 6 are respectively top and bottom views of the heater core of FIG. 1;
FIG. 7 is a front view of a heat exchanger core showing a second embodiment of my new design;
FIG. 8 is a rear view of the heater core of FIG. 7;
FIGS. 9 and 10 are respectively end views of the heater core of FIG. 7;
FIGS. 11 and 12 are respectively top and bottom views of the heater core of FIG. 7;
FIG. 13 is a front view of a heat exchanger core showing a third embodiment of my new design;
FIG. 14 is rear view of the heater core of FIG. 13;
FIGS. 15 and 16 are respectively end views of the heater core of FIG. 13; and,
FIGS. 17 and 18 are respectively top and bottom views of the heater core of FIG. 13.
The sole difference between the three embodiments resides in the appearance of the number of tubes.
| D128514 | July 1941 | Young |
| D205870 | September 1966 | Hill |
| D264501 | May 18, 1982 | Beaton |
| 2988063 | June 1961 | Vorkauf |
| 529694 | December 1921 | FRX |
Type: Grant
Filed: Oct 21, 1993
Date of Patent: Mar 14, 1995
Assignee: Ruffneck Heaters-Div. of Starozik Industries Inc. (Calgary)
Inventor: Hans Kolb (Calgary)
Primary Examiner: Lisa P. Lichtenstein
Application Number: 0/14,397
