Oil drain valve

Valves and valve actuation – Valve actuator is inlet or outlet – Reciprocating spout

Reexamination Certificate

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Details

C251S345000, C184S001500, C184S080000, C222S499000, C222S529000

Reexamination Certificate

active

11063014

ABSTRACT:
A drain valve to be used with numerous drain applications, such as draining fluid from an engine, includes in an exemplary embodiment a valve body, an o-ring and a cap. In another exemplary embodiment, the drain valve includes a valve body, an o-ring, a cap retainer and a cap. The drain valve eliminates the need for a tool, such as a wrench, to drain the fluid from the engine, for example. The drain valve includes a push-pull or a twist-and-pull cap feature to manipulate the valve; however, the drain cap remains on the drain valve and therefore cannot be lost or misplaced. Moreover, the drain valve includes a drain cap that is rotatable to direct the fluid flow out the valve and also provides an easy grip for opening and closing the valve.

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patent: 2003/0047702 (2003-03-01), Gunnarsson et al.

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