Heat recovery unit
Description
FIG. 1 is a perspective view of the heat recovery 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 an opposite side elevational view thereof;
FIG. 6 is a top plan view thereof; and,
FIG. 7 is a bottom view thereof.
Referenced Cited
Patent History
Patent number: D349333
Type: Grant
Filed: Jul 8, 1991
Date of Patent: Aug 2, 1994
Inventor: Donald King (Chillicothe, OH)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Robin V. Taylor
Attorney: Terry M. Gernstein
Application Number: 7/726,521
Type: Grant
Filed: Jul 8, 1991
Date of Patent: Aug 2, 1994
Inventor: Donald King (Chillicothe, OH)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Robin V. Taylor
Attorney: Terry M. Gernstein
Application Number: 7/726,521
Classifications
Current U.S. Class:
Heating Or Cooling (D23/314);
Element Or Attachment, Not Elsewhere Specified (D23/386)