Patent ID: 7234479
Filing Date: 2007-06-26
Classification: E03B,F16K,Y10T

Abstract:
1. A sanitary water hydrant, comprising: a hydrant housing having an upper end and a distal end; a water valve proximate said distal end of said housing, said valve being selectively openable to pass water and closeable to stop water flow; an elongate water riser disposed for movement within said housing and having a distal end oriented proximate said water valve; a water outlet operably coupled with said water riser; an actuating member coupled to said riser to raise and lower said riser; a valve engaging member coupled to said riser for movement therewith, said valve engaging member selectively engagable with said water valve for selective opening of said valve when said actuating member is moved to lower said riser to pass water through said valve and said riser to said outlet; a water receiving chamber proximate said distal end of said housing for receiving water from said riser when said valve is closed; and a piston in said chamber, said piston slidably coupled to said riser for independent movement with respect thereto, said piston movable with said riser such that said piston draws water into said receiving chamber when said valve is closed.