Philip L Grabenbauer

US Patent:

48136484, Mar 21, 1989

Filed:

Nov 25, 1987

Appl. No.:

7/125363

Inventors:

Herbert H. Walton - Marshalltown IA
Philip L. Grabenbauer - Marshalltown IA

Assignee:

Fisher Controls International, Inc. - Marshalltown IA

International Classification:

F16K 500

US Classification:

251304

Abstract:

A sanitary valve includes a valve body having a straight-through cylindrical valve chamber terminating in flanges with a valve element support intersecting the valve chamber at a right angle. The valve element is cylindrically shaped with a hemispherical tip that is covered with an elastomeric material which includes a raised circular seal that extends around the circumference of the valve element and a raised U-shaped seal that extends over the tip. The circular seal always engages the supporting means in both the rotatable and sliding versions of the valve to preclude any environmental exposure of the valve chamber.