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Title:
PRESSURE MEASURING APPARATUS
Document Type and Number:
Japanese Patent JP3961898
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To provide a pressure measuring apparatus for discharging gaseous hydrogen without causing a loss or fouling up a pressure receiver due to a leak of an internal filler liquid when a filler liquid inlet is opened.
SOLUTION: A filler liquid inlet 34 is formed in a first diaphragm base 22 of a pressure receiver 6, a filler liquid 8 is injected through the inlet, and then the receiver 6 is sealed with a ball 35 and a setscrew 36. A filler liquid pool part 38 of a large diameter is formed in an opening part of the inlet 34. When gaseous hydrogen is accumulated within the base 22, the inlet 34 is opened by releasing the ball 35 from its state pressed by the setscrew 36, thereby removing the internal hydrogen. In this event, the liquid 8 partly overflows the inlet 34 and is pooled in the pool part 38.


Inventors:
Hiroo Ikuo
Koichiro Nakazawa
Application Number:
JP2002207985A
Publication Date:
August 22, 2007
Filing Date:
July 17, 2002
Export Citation:
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Assignee:
YAMATAKE CORPORATION
International Classes:
G01L19/06; G01L13/02; (IPC1-7): G01L19/06; G01L13/02
Domestic Patent References:
JP63034312A
JP2000321159A
Attorney, Agent or Firm:
Masaki Yamakawa