Combined check and control valve

- Tour & Andersson AB
Description

FIG. 1 is a left side elevational view of a combined check and control valve showing my new design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a right end elevational view thereof;

FIG. 5 is a left end elevational view thereof; and,

FIG. 6 is a perspective view taken from the top, right side and right end thereof.

Referenced Cited
U.S. Patent Documents
D284989 August 5, 1986 Fetty
296984 April 1884 Mapes
D301915 June 27, 1989 Fisher et al.
769901 September 1904 Hall
1720938 July 1929 Veenschoten
4078728 March 14, 1978 Nordeen
4232695 November 11, 1980 Roberge
4237920 December 9, 1980 Norman
4270727 June 2, 1981 Norman
Patent History
Patent number: D335918
Type: Grant
Filed: Jul 13, 1990
Date of Patent: May 25, 1993
Assignee: Tour & Andersson AB
Inventor: Leif Glansk (Fristad)
Primary Examiner: James R. Largen
Law Firm: Davis, Bujold & Streck
Application Number: 7/552,596