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.

Claims

The ornamental design for a check valve, as shown and described.

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Inventors:	Scaramucci; John P. (Oklahoma City, OK)
[*] Notice:	The portion of the term of this patent subsequent to September 3, 2005 has been disclaimed.
Appl. No.:	07/062,047
Filed:	June 15, 1987

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Current U.S. Class:	D23/237
Field of Search:	;137/515.7,527-527.8 ;D23/233-247

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References Cited [Referenced By]

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U.S. Patent Documents

D202701	November 1965	Davis
D232635	September 1974	Milan
D278079	March 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 1976	Kajita
3934608	January 1976	Guyton
3990471	November 1976	Schutzer et al.
4128111	December 1978	Hansen et al.
4201241	May 1980	Schertler
4223697	September 1980	Pendleton
4230150	October 1980	Scaramucci
4274436	June 1981	Smith
4427025	January 1984	Prince
4586534	May 1986	McNeely
4605041	August 1986	Teumer

Primary Examiner: Largen; James R.
Attorney, Agent or Firm: Dunlap, Codding, Peterson & Lee