US2002124894A1PendingUtilityA1

Fluid control device

Assignee: TADAHIRO OHMIPriority: Aug 5, 1997Filed: May 10, 2002Published: Sep 12, 2002

Est. expiryAug 5, 2017(expired)· nominal 20-yr term from priority

Inventors:Tadahiro Ohmi Yukio Minami Akihiro Morimoto Nobukazu Ikeda Keiji Hirao Takashi Hirose Michio Yamaji Kazuhiro Yoshikawa

F16K 27/003Y10T137/87684F16K 11/20H10P 72/00H10P 95/00

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Claims

Abstract

A fluid control device comprises a first passageway, and a second passageway communicating therewith and having a terminating end closed with a fluid control unit or instrument. The first passageway is adapted to pass a fluid therethrough with a different fluid remaining in the second passageway. The first passageway comprises an upstream portion and a downstream portion communicating with the upstream portion at an approximate right angle therewith. The second passageway extends from a terminating end of the upstream portion of the first passageway in alignment with the upstream portion.

Claims

exact text as granted — not AI-modified

What is claimed is:  
     
         1 . A fluid control device comprising a first passageway, and a second passageway communicating therewith and having a terminating end closed with fluid control means, the first passageway being adapted to pass a fluid therethrough with a different fluid remaining in the second passageway, the fluid control device being characterized in that the first passageway comprises an upstream portion and a downstream portion communicating with the upstream portion at an approximate right angle therewith, the second passageway extending from a terminating end of the upstream portion of the first passageway in alignment with the upstream portion.  
     
     
         2 . A fluid control device according to  claim 1  wherein the fluid control means is a pressure measuring instrument closing the terminating end of the second passageway at all times.  
     
     
         3 . A fluid control device according to  claim 1  wherein the fluid control means is a channel opening-closing device for temporarily closing the terminating end of the second passageway.

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