Fluid handling – Line condition change responsive valves – Bi-directional flow valves
Reexamination Certificate
2008-01-22
2008-01-22
Hepperle, Stephen M. (Department: 3753)
Fluid handling
Line condition change responsive valves
Bi-directional flow valves
C137S493300, C137S493500, C137S493600, C137S493800, C137S513300
Reexamination Certificate
active
11423744
ABSTRACT:
A valve for use in regulating the flow of fluid between a first fluid side and a second fluid side of a hydraulic circuit. A bore is extended through a valve seat, and the bore and valve stem cooperate to form a fluid passage from the first side to the second side. A plurality of ribs are located on one side of the valve seat and extend in a direction generally parallel to the bore.
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Christiansen Tage
Kopel Thomas
Kryhlmand Anders
Trimble Robert E.
Hepperle Stephen M.
Hydro-Gear Limited Partnership
Neal, Gerber & Eisenberg
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