Combined air cooler and heater

Description

FIG. 1 is a top, front and side perspective view of a combined air cooler and heater showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a left side elevational view thereof; and

FIG. 7 is a rear elevational view thereof.

Referenced Cited
U.S. Patent Documents
D162969 April 1951 MacDougall
D275029 August 7, 1984 Boldt et al.
D280760 September 24, 1985 Kogan
Other references
  • Hardware Age (Jan., 1974) p. 66, Preway Heater "B". Industrial Design (1955) p. 96, Raytheon "Micronaire" room Air Cleaner.
Patent History
Patent number: D299524
Type: Grant
Filed: Sep 12, 1986
Date of Patent: Jan 24, 1989
Inventor: Chen Din-Her (Taipei City)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Brian N. Vinson
Law Firm: Armstrong, Nikaido, Marmelstein & Kubovcik
Application Number: 6/907,753
Classifications
Current U.S. Class: Heating Or Cooling (D23/314)