Chemistry: electrical current producing apparatus – product – and – With pressure equalizing means for liquid immersion operation
Reexamination Certificate
2007-01-02
2007-01-02
Hepperle, Stephen M. (Department: 3753)
Chemistry: electrical current producing apparatus, product, and
With pressure equalizing means for liquid immersion operation
C137S484800, C137S505180, C137S505370, C429S006000
Reexamination Certificate
active
10725864
ABSTRACT:
A back pressure chamber is defined at an end of a rod for acting in a direction to cancel out a pressure applied to a valve head, and an aspirator chamber is defined closely to the valve head for developing a pressure lower than a secondary pressure due to a suction caused by a nozzle. The rod has a first communication hole and a second communication hole that are defined therein which provides fluid communication between the back pressure chamber and the aspirator chamber.
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Office Action in corresponding JP 2002-347512 issued Oct. 10, 2006.
Ishikawa Kazuki
Miyano Kouji
Nakajima Yoji
Sahoda Katsumi
Yoshida Takashi
Hepperle Stephen M.
Keihin Corporation
Lahive & Cockfield LLP
Laurentano, Esq. Anthony A.
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