Ball valve

- Sekisui Kagaku Kogyo K.K.
Description

FIG. 1 is a front, top and right side perspective view of a ball valve showing our new design;

FIG. 2 is a front elevational view thereof the rear being a mirror image of the front shown;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a left side elevational view thereof; and

FIG. 6 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
D190895 July 1961 Dillon
D191854 November 1961 Franck
D291230 August 4, 1987 Kunz
3132837 May 1964 Britton
3245653 April 1966 Lavigueur
3386461 June 1968 Fisher
3397861 August 1968 Searamucci
4124036 November 7, 1978 Rogers
4257575 March 24, 1981 Runyan
4665937 May 19, 1987 Hall
Patent History
Patent number: D297254
Type: Grant
Filed: Jun 28, 1985
Date of Patent: Aug 16, 1988
Assignee: Sekisui Kagaku Kogyo K.K. (Osaka)
Inventors: Masayoshi Odate (Saitama), Mitsuharu Hashimoto (Saitama)
Primary Examiner: James R. Largen
Law Firm: Sughrue, Mion, Zinn, Macpeak & Seas
Application Number: 6/749,892
Classifications
Current U.S. Class: Symmetrical On One Axis (D23/248)