Heat pump

- H-Tech, Inc.
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Description

FIG. 1 is a front perspective view of a heat pump showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

Claims

The ornamental design for a heat pump, as shown and described.

Referenced Cited
U.S. Patent Documents
D219449 December 1970 Ortega
3722845 March 1973 Unger
D244293 May 10, 1977 Carluccio
4261418 April 14, 1981 Helt et al.
D299528 January 24, 1989 Kessler et al.
D306642 March 13, 1990 Chang et al.
D353883 December 27, 1994 Blanchard
D434480 November 28, 2000 Caronna et al.
D449094 October 9, 2001 Caronna et al.
D454186 March 5, 2002 Caronna et al.
D454388 March 12, 2002 Mutchnik et al.
D503784 April 5, 2005 Tucker et al.
D513528 January 10, 2006 Tucker et al.
Other references
  • U.S. Appl. No. 60/721,479 “Heat Pump for Low Ambient Air Temperature Operations,” Filed Sep. 28, 2005.
Patent History
Patent number: D539882
Type: Grant
Filed: Sep 28, 2005
Date of Patent: Apr 3, 2007
Assignee: H-Tech, Inc. (Wilmington, DE)
Inventor: Gang Li (Clemmons, NC)
Primary Examiner: Brian N Vinson
Attorney: McCarter & English, LLP
Application Number: 29/239,290
Classifications
Current U.S. Class: Air Conditioner (27) (D23/351)