Title: Two-way ball valve

Abstract: A two-way ball valve including a housing having an open interior chamber or space with opposed inlet and outlet openings, apertured ball seats operatively positioned in the housing at the junctures of the inlet and outlet openings, a ball in the chamber floatingly seated between the ball seats and in liquid sealing engagement therewith, an axial flow bore through the ball, the ball being rotatably positionable to open and closed positions, and a large bore or opening in the body of the ball in the nature of a side channel intercommunicating the axial flow bore and the interior space in the housing, and with the valve in open position permitting fluid to circulate freely within the housing to flush the housing space and thereby prevent formation of contaminated dead spaces in the valve.

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Inventors: Kirkland, W. Dean (Walnut Creek, CA, US)

Application Number: 503119
Filing Date: 1974-09-04
Publication_date: 1976-03-16
Assignee: Cutter Laboratories, Inc. (Berkeley, CA)
Primary Class(es): 137/238 251/315.13
Other Classes:
US Patent Ref:

3039484	Jun, 1962	Bredtschneider	251/315.
3488033	Jan, 1970	Priese	251/175.
3525352	Aug, 1970	Jensen	137/238.
3773291	Nov, 1973	Grauer	251/315.

Other Refs:
Primary Examiner: Schwadron, Martin P.
Assistant Examiner: Gerard, Richard
Attorney: Gardiner, Sixbey, Bradford & Carlson