Ball valve

- AB Kalle-Regulatorer
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Description

FIG. 1 is a front perspective view of a ball valve showing my new design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a side elevational view thereof, the opposite side being the same as the side shown;

FIG. 4 is a top plan view thereof; and

FIG. 5 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
3091428 May 1963 Magos
3129920 April 1964 Stillwagon
3173650 March 1965 Cotterman et al.
3206164 September 1965 Yopp
3241808 March 1966 Allen
3254873 June 1966 Knox
3329395 July 1967 Allen
3338551 August 1967 Black
3958595 May 25, 1976 Rene
Patent History
Patent number: D253365
Type: Grant
Filed: Apr 22, 1977
Date of Patent: Nov 6, 1979
Assignee: AB Kalle-Regulatorer (Saffle)
Inventor: Gustav B. Nyberg (Saffle)
Primary Examiner: James R. Largen
Attorney: Sidney G. Faber
Application Number: 5/790,143
Classifications
Current U.S. Class: D23/19
International Classification: D2301;