VACUUM MEASUREMENT STRUCTURE, VACUUM HEAT INSULATION PANEL, VACUUM MEASUREMENT METHOD, VACUUM STRUCTURED BODY EQUIPPED WITH VACUUM MEASUREMENT STRUCTURE AND ITS MANUFACTURING METHOD

Title:

VACUUM MEASUREMENT STRUCTURE, VACUUM HEAT INSULATION PANEL, VACUUM MEASUREMENT METHOD, VACUUM STRUCTURED BODY EQUIPPED WITH VACUUM MEASUREMENT STRUCTURE AND ITS MANUFACTURING METHOD

Document Type and Number:

Japanese Patent JP2006112812

Kind Code:

A

Abstract:

To provide a technology for measurement of a vacuum of a vacuum space of an enclosed vacuum structured body, using a very simple means without accompaniment of any destructive operation.

The vacuum insulation panel 10 of the vacuum structured body is provided with a bellows member 20, in a recessed shape on a part of the panel 10. The bellows member 20 is retractable, while forming the shape-variable part 11. The bellows member 20 becomes elongated shape, by receiving the outer pressure of the vacuum insulation panel to the vacuum degree of the vacuum space 14 of the vacuum insulation panel 10; but if the degree of vacuum in the vacuum space 14 is lowered, the difference of pressure to the outer pressure becomes lowered, and consequently, the bellows member 20 is contracted in shape.

Inventors:

OMI TADAHIRO
WADASAKO MITSUYUKI
KOBAYASHI TSUTOMU

Application Number:

JP2004297628A

Publication Date:

April 27, 2006

Filing Date:

October 12, 2004

Export Citation:

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Assignee:

UNIV TOHOKU
NICHIAS CORP

International Classes:

G01L21/00; G01L7/06; G01L7/08

Domestic Patent References:

JPS4996511A	1974-09-12
JPH05142075A	1993-06-08
JPS61153913A	1986-07-12
JPH07110278A	1995-04-25
JPH0520566A	1993-01-29

Foreign References:

US6182514B1

2001-02-06

Attorney, Agent or Firm:

Iwata enjoyment
Satoshi Iwata

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