Air conditioning unit

Description

FIG. 1 is a perspective view from the rear and above of an air conditioning unit showing our new design;

FIG. 2 is a perspective view from the front and below thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a front elevational view thereof;

FIG. 6 is a rear elevational view thereof; and

FIG. 7 is a right side elevational view, the left side being a mirror image thereof.

Referenced Cited
U.S. Patent Documents
D99291 April 1936 Ludwig
D175444 August 1955 Schucker
D175445 August 1955 Schucker
3415073 December 1968 Ammons
3740964 June 1973 Herweg
Other references
  • Fuel Oil and Oil Heat, Feb. 1957, p. 90, Year Round Air Conditioner made by Stewart-Warner #2, right bottom side of page.
Patent History
Patent number: D310409
Type: Grant
Filed: Oct 15, 1987
Date of Patent: Sep 4, 1990
Assignee: Sigma Air Conditioning Pty, Limited (New South Wales)
Inventors: Keith R. Allen (Moorebank), Jeffrey Crawford (Drummoyne), Geoffrey Rule (St. Clair)
Primary Examiner: James M. Gandy
Assistant Examiner: Lisa Lichtenstein
Law Firm: Ladas & Parry
Application Number: 7/109,691
Classifications
Current U.S. Class: Air Conditioner (27) (D23/351)