Patent ID: 7644681

Claim:
An extendible and rotatable push bar assembly for gently urging cows out from a milking parlor after the end of a milking operation; comprising: a horizontal push bar; an overhead horizontal pivot member; a plurality of extender slide assemblies, each having an upper slide member with a journal member that is pivotally journaled on said overhead horizontal pivot member and a lower slide member movable in said upper slide member, and supporting a respective end of said horizontal push bar such that the horizontal push bar moves radially in respect to said overhead horizontal pivot member; and each said slide assembly including a linear actuator that extends the lower and upper slide members relative to one another for controllably extending the push bar radially outward in respect to said pivot member; and means independent of said linear actuator for controllably rotating the upper slide members about said pivot member to sweep the push bar controllably forward to urge the cows out of the milking parlor.