Ventilator

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Description

FIG. 1 is a perspective view of the ventilator embodying our design;

FIG. 2 is a top plan view thereof;

FIG. 3 is an elevational view taken from one side thereof, the opposite side being a mirror image of the side shown;

FIG. 4 is an elevational view taken from one end thereof, the opposite end being a mirror image of the end shown; and

FIG. 5 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
D204518 April 1966 Jenn
D217721 June 1970 Guerney
1416295 May 1922 Hirschman
2469096 May 1949 Wilson
Foreign Patent Documents
90671 September 1937 SEX
Patent History
Patent number: D270276
Type: Grant
Filed: Jan 23, 1981
Date of Patent: Aug 23, 1983
Assignee: Flettner Ventilator Limited (London)
Inventors: Derek V. Stern (London), Noel W. Fleury (London)
Primary Examiner: James R. Largen
Law Firm: Birch, Stewart, Kolasch & Birch
Application Number: 6/227,985
Classifications
Current U.S. Class: D23/153; 98/75
International Classification: D2304;