Fluid handling – Removable valve head and seat unit – Threaded into valve casing
Reexamination Certificate
2005-04-26
2005-04-26
Rivell, John (Department: 3753)
Fluid handling
Removable valve head and seat unit
Threaded into valve casing
C135S022000, C251S152000, C123S574000, C285S140100, C285S208000, C285S259000
Reexamination Certificate
active
06883538
ABSTRACT:
A flow control valve coupling structure that does not require complicated machining and facilitates the installation of a flow control valve. The coupling structure includes a fitting portion having a male thread that is formed on a peripheral surface of the flow control valve. A coupled member has a coupling hole to receive the flow control valve. A cylindrical elastic sealing member is engaged with the coupling hole to seal the space between the flow control valve and the coupling hole. The elastic sealing member has an inner surface defining a mounting hole in which the fitting portion is fitted. A female thread is formed on the inner surface and is mated with the male thread of the fitting portion.
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Adachi Ryohei
Murakami Iwao
Nakamura Hiromu
Ono Chikashi
Toyokawa Masayuki
Pacific Engineering Corp.
Rivell John
Sheridan Ross PC
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