Ventilator housing

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Description

FIG. 1 is a perspective view of the ventilator housing showing the new design;

FIG. 2 is an end elevation view thereof;

FIG. 3 is a side elevation view thereof; and

FIG. 4 is a top plan view thereof.

Referenced Cited
U.S. Patent Documents
D111516 September 1938 Kreutzer
120031 October 1871 Brown
1542740 June 1925 Spillman
2188741 January 1940 Roberts
3011423 December 1961 Breidert
3040646 June 1962 Jueng et al.
3107598 October 1963 Rudy
3788207 January 1974 Doherty
3855910 December 1974 Brinton et al.
Patent History
Patent number: D256725
Type: Grant
Filed: Nov 6, 1978
Date of Patent: Sep 2, 1980
Inventor: Sam Stahl (Houston, Harris County, TX)
Primary Examiner: James R. Largen
Application Number: 5/957,937
Classifications
Current U.S. Class: D23/153
International Classification: D2304;