Butterfly valve

- Crane Co.
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Description

FIG. 1 is a front elevational view of a butterfly valve showing my design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a side elevational view thereof; and,

FIG. 4 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
D198885 August 1964 Gifford
D198886 August 1964 Gifford
2122560 July 1938 De Florez
3485476 December 1969 Hemphill
4007910 February 15, 1977 Yasuoka et al.
Patent History
Patent number: D251255
Type: Grant
Filed: May 18, 1977
Date of Patent: Mar 6, 1979
Assignee: Crane Co. (New York, NY)
Inventors: George E. Hansen (Elmwood Park, IL), John A. McInerney (Evergreen Park, IL)
Primary Examiner: James R. Largen
Attorney: George S. Schwind
Application Number: 5/798,269
Classifications
Current U.S. Class: D23/19
International Classification: D2301;