Fan housing

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

FIG. 1 is a side perspective view;

FIG. 2 is a top view;

FIG. 3 is a bottom view; and,

FIG. 4 is a side perspective view of a fan housing showing a second embodiment of my new design.

The sole difference between the embodiments resides in the appearance of the inlet and outlet duct flanges.

Referenced Cited
U.S. Patent Documents
D253965 January 15, 1980 Ehrentraut-Jones
D268283 March 15, 1983 Hicks
D275787 October 2, 1984 Rapp
D300776 April 18, 1989 Fu et al.
D300847 April 25, 1989 Lin
D309658 July 31, 1990 Schneider
D310873 September 25, 1990 Asselbergs et al.
D313275 December 25, 1990 Aida
D338709 August 24, 1993 Lin
D340109 October 5, 1993 Julien
3312386 April 1967 Hull et al.
Foreign Patent Documents
2624923 June 1989 FRX
Other references
  • Fantech Sales Brochure. FanAmerica Sales Brochure (Kanalflackt). Rosenberg Sales Brochure.
Patent History
Patent number: D381411
Type: Grant
Filed: Jun 15, 1995
Date of Patent: Jul 22, 1997
Assignee: Spruce Environmental Technologies, Inc. (Ward Hill, MA)
Inventor: David P. Kapturowski (Groveland, MA)
Primary Examiner: Lisa P. Lichtenstein
Application Number: 0/40,325
Classifications
Current U.S. Class: Fan Or Ventilator (D23/370); Fan Element (D23/411)
International Classification: 2304;