Swing check valve

Description

FIG. 1 is a side perspective view of a swing check valve showing my new design;

FIG. 2 is a perspective view taken from the side opposite that shown in FIG. 1;

FIG. 3 is a perspective view taken from the side opposite that shown in FIG. 1 showing the valve in an open position;

FIG. 4 is a perspective view taken from the opposite side of FIG. 3;

FIG. 5 is an exploded perspective view taken from the side shown in FIG. 1; and

FIG. 6 is an exploded perspective view taken from the side shown in FIG. 2.

Referenced Cited
U.S. Patent Documents
D202701 November 1965 Davis
D232635 September 1974 Milan
D278079 March 19, 1985 Wiperby
1399684 December 1921 Belcher
2532067 November 1950 Bour
3191619 June 1965 Allen
3565107 February 1971 Bunch
3626148 December 1971 Woytowich
3720228 March 1973 Wheatley
3817277 June 1974 Wheatley
3933173 January 20, 1976 Kajita
3934608 January 27, 1976 Guyton
3990471 November 9, 1976 Schutzer et al.
4128111 December 5, 1978 Hansen et al.
4201241 May 6, 1980 Schertler
4223697 September 23, 1980 Pendleton
4230150 October 28, 1980 Scaramucci
4274436 June 23, 1981 Smith
4427025 January 24, 1984 Prince
4586534 May 6, 1986 McNeely
4605041 August 12, 1986 Teumer
Patent History
Patent number: D319684
Type: Grant
Filed: Jun 15, 1987
Date of Patent: Sep 3, 1991
Inventor: John P. Scaramucci (Oklahoma City, OK)
Primary Examiner: James R. Largen
Law Firm: Dunlap, Codding, Peterson & Lee
Application Number: 7/62,048
Classifications
Current U.S. Class: Check (D23/237)