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
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3817277 | June 1974 | Wheatley |
3933173 | January 20, 1976 | Kajita |
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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 |
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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
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)