Valve

Details Valve Valve

2006-10-03

2006-10-03

Look, Edward K. (Department: 3751)

Valves and valve actuation

Valve actuator is valve casing or extension thereof

Sleeve valve

C251S148000

Reexamination Certificate

active

07114703

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, a first and second o-ring and a valve sleeve. 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 twist-and-pull valve sleeve feature to manipulate the valve; however, the valve sleeve remains on the drain valve and therefore cannot be lost or misplaced. The valve sleeve further includes an easy grip for opening and closing the valve.

REFERENCES:
patent: 3788603 (1974-01-01), Snider
patent: 5096158 (1992-03-01), Burdick et al.
patent: 5332194 (1994-07-01), Austin et al.
patent: 5411115 (1995-05-01), Shropshire
patent: 5782455 (1998-07-01), Burnworth
patent: 6032705 (2000-03-01), Murphy et al.
patent: D473935 (2003-04-01), Braun
patent: 6565095 (2003-05-01), Meacham
patent: 6622988 (2003-09-01), Gill

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