Portable, refrigerant recovery unit

-
Skip to: Description  ·  Claims  ·  References Cited  · Patent History  ·  Patent History
Description

FIG. 1 is a perspective view of a portable, refrigerant recovery unit showing our new design.

FIG. 2 is a right side thereof, the left side view being a mirror image thereof.

FIG. 3 is a front view thereof.

FIG. 4 is a top plan view thereof.

FIG. 5 is a bottom plan view; and,

FIG. 6 is a rear view thereof.

The broken lines in the drawings are for illustrative purposes only and form no part of the claimed design.

Claims

The ornamental design for a portable, refrigerant recovery unit, as shown and described.

Referenced Cited
U.S. Patent Documents
235905 December 1880 Schultz
2491351 December 1949 Zeitlin
3067624 December 1962 Norton et al.
3191503 June 1965 Fuehrer
3451276 June 1969 Wadlow et al.
3820924 June 1974 Cassidy
3834840 September 1974 Hartley
3952709 April 27, 1976 Riddel
3990819 November 9, 1976 Ritchie
4032270 June 28, 1977 Sheth et al.
4299097 November 10, 1981 Shank et al.
4408968 October 11, 1983 Inagaki et al.
4523897 June 18, 1985 Lower et al.
4559838 December 24, 1985 Neuenschwander
4608002 August 26, 1986 Hayase et al.
4631006 December 23, 1986 Murray
5017108 May 21, 1991 Murayama et al.
5078017 January 7, 1992 Zornes
5092185 March 3, 1992 Zornes et al.
5127239 July 7, 1992 Manz et al.
5310326 May 10, 1994 Gui et al.
D358548 May 23, 1995 Platte
5423702 June 13, 1995 Butler
D377179 January 7, 1997 Sundheim et al.
5846059 December 8, 1998 Mizuno et al.
6099259 August 8, 2000 Monk et al.
6126410 October 3, 2000 Kung et al.
D474209 May 6, 2003 Seymour et al.
D481741 November 4, 2003 Yuen
D482373 November 18, 2003 Seymour et al.
Other references
  • Stinger 2000—Universal Refrigerant Recovery System, pp. 4-5 and 16, 2000, United Kingdom.
  • OZ Refrigerant Recovery System—Powermax, ThermaFlo, Springfield, MA, 2003.
  • Welch Direct Drive Vacuum Pumps, 2003, Labconco Corporation, Kansas City, MO.
  • CPS 2003—Professional Air Conditioning & Refrigeration Products, 2003, p. 14, CPS Products, Inc., Hialeah, FL.
  • Promax Robinair, ATP 2004 HVAC/R Catalog, pp. 22-23, Advanced Test Products, Miramar, FL.
  • Greg Sundheim, Helpful Hints for Refrigerant Recovery, Contracting Business, Feb. 1997, Penton Publishing Inc., Cleveland, OH.
  • Refrigerant Recovery, 1998, Promax/Amprobe, Englewood, CO.
Patent History
Patent number: D549744
Type: Grant
Filed: Jan 8, 2007
Date of Patent: Aug 28, 2007
Assignee: (Bowmar, CO)
Inventors: Gregory S. Sundheim (Bowmar, CO), Robert M Morris (Lakewood, CO)
Primary Examiner: Stella Reid
Assistant Examiner: Shanda C. Hill
Attorney: W. Scott Carson
Application Number: 29/271,010
Classifications
Current U.S. Class: Refrigeration Machinery And Apparatus (D15/79)