Patent
   D319683
Priority
Jun 15 1987
Filed
Jun 15 1987
Issued
Sep 03 1991
Expiry
Sep 03 2005

TERM.DISCL.
Assg.orig
Entity
unknown
5
21
n/a
The ornamental design for a check valve, as shown and described.

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.

Scaramucci, John P.

Patent Priority Assignee Title
10520101, Sep 26 2016 FLUID HANDLING LLC Contoured check valve disc for low cracking pressure
D397766, May 31 1994 Alfa Laval Agri AB Sealing valve
D397767, May 31 1994 Alfa Laval Agri AB Slide valve
D624181, Sep 25 2009 Sumitomo Bakelite Company, Ltd. Air-tight valve for overtube
D720045, Feb 24 2014 NSI INTERNATIONAL, INC Inflation valve
Patent Priority Assignee Title
1399684,
2532067,
3191619,
3565107,
3626148,
3720228,
3817277,
3933173, Feb 26 1968 Check valve
3934608, Nov 14 1973 Check valve
3990471, May 28 1974 Gustav F. Gerdts KG Flap valve
4128111, Jun 18 1976 Wafer swing check valves
4201241, Jun 29 1977 TEUMER, HENRY E Check valve with removable seat
4223697, Jul 31 1978 J M HUBER CORPORATION A CORPORATION OF NJ Check valve
4230150, Feb 22 1979 SCARAMUCCI, JOHN P Tilting disc check valve
4274436, Aug 16 1979 Xomox Corporation Wafer-type swing check valve construction
4427025, May 31 1979 Prince Valve, Inc. Swing check valve
4586534, Apr 23 1984 Daniel Industries Check valve mechanism
4605041, Apr 05 1985 Check valve
202701,
232635,
D278079, Jan 29 1982 FLAKT AKTIEBOLAG, A JOINT-STOCK COMPANY OF SWEDEN Exhaust air valve
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