Flexible rotor valve seal and ganged rotor valve incorporating same
AssigneeQuality Controls, Inc.
InventorsDavid J. Barbuto, Theodore T. Evangelo, James B. Horman, Jr.
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Abstract
The present seal (10) is a disc of a rigid but deformable plastic, the top surface of which is cylindrical, and the bottom of which has a circular groove (12) containing a flexible sealing mechanism (15). This seal is suited for use in a ganged rotor valve (22) having two or more levels of independent fluid passageways through the rotor along the length thereof. Each level will usually have two independent L-shaped passageways (34, 35). The seal (10) of this invention fits into the rotor about each of the ends of the passageways (34, 35) to seal the passageway between the rotor and the valve body (22).
Claims7
An improved rotor valve seal comprising a disc of a rigid but deformable material having a top surface, a bottom surface, and a circumferential edge that seats in a circular receiving seat in a cylindrical outer surface of a rotor, said top surface thereof being a portion of a cylindrical surface and said bottom surface thereof having a circular groove therein equidistant from said circumferential edge, and a flexible sealing mechanism within said groove, wherein the combination of said disc and said circular groove with said flexible sealing mechanism therein comprise the sole means for urging said cylindrical surface of said disc into sliding but fluid tight engagement with the wall of a rotor chamber of a rotor valve to seal against leakage about said rotor valve seal.
Dependencies are inferred from the claim text.