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Class Information
Number: 137/288
Name: Fluid handling > Hydrant type > Movable riser actuated valve > Reciprocating riser > Piston type valve
Description: Apparatus in which the valve is a piston cooperating with one or more ports in a cylindrical valve seat.

Patents under this class:

Patent Number Title Of Patent Date Issued
8408238 Yard hydrant with improved valve Apr. 2, 2013
6178988 Hydrant design Jan. 30, 2001
5289840 Yard hydrant Mar. 1, 1994
4372339 Yard hydrant Feb. 8, 1983
4109671 Sanitary yard hydrant Aug. 29, 1978

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