The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 07, 1993
Filed:
Jun. 25, 1992
Wilfreid L Boehm, Thornton, CO (US);
Kevin T Dickson, Denver, CO (US);
John R Hamner, Littleton, CO (US);
Jim D Perkins, Littleton, CO (US);
John Roedel, Littleton, CO (US);
Christine M Wardlow, Littleton, CO (US);
Thomas E Van Dorn, Littleton, CO (US);
Norgren Co., Littleton, CO (US);
Abstract
A fluid flow control valve of the ball type has a unitary body moulded in an elastomer and defining inlet and outlet passageways and a spherical cavity accommodating a plastic, ball-shaped closure member. The closure member is located in the cavity by forcing it, together with its actuating spindle, through a bore formed in the body until it is sealingly located, as a snap fit, in the cavity, during which process the bore is resiliently deformed outwardly but subsequently resiles into contact with the actuating spindle. The valve may, thus, simply have a pair of injection mouldings and, relative to prior ball valve constructions, is therefore simpler and more economic to manufacture. The body is integrally formed with a peripheral external recess whereby it may readily be sealingly engaged, simply as a snap fit, in, for example, an aperture formed in the base or a compressed sir filter bowl, the valve acting as a manual drain valve.