Patent ID: 8342125
Filing Date: 2013-01-01
Classification: A01J,Y10T

Abstract:
1. A safety valve for a milker unit backflush system, the safety valve comprising: a housing defining a milk inlet for communication with a downstream portion of a milker unit, a milk outlet, a milk passage extending between the milk inlet and the milk outlet, a backflush fluid inlet, and a backflush fluid conduit extending between the backflush fluid inlet and the milk inlet; a first seal mounted in the backflush fluid conduit; a second seal mounted in the milk passage; and a backflush piston disposed in the housing for movement between a milking position in which the backflush piston engages the first seal, and a backflush position in which the backflush piston engages the second seal, wherein the backflush piston defines a conduit that is at least a portion of the backflush fluid conduit.