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Patent Searching and Data


Title:
VACUUM SWITCH AND VACUUM SWITCH GEAR USING THE VACUUM SWITCH
Document Type and Number:
WIPO Patent Application WO/2000/021107
Kind Code:
A1
Abstract:
A vacuum switch and a vacuum switch gear which can assure the safety of workers at maintenance and inspection and is excellent in reliability, wherein a pair of electrodes free to move toward and away from each other are installed in an earthed vacuum container and an insulating coating is applied to the inner surface of the vacuum container so as to form the vacuum switch and the vacuum switch gear.

Inventors:
MORITA AYUMU (JP)
TUJI MASASHIGE (JP)
TANIMIZU TORU (JP)
KAJIWARA SATORU (JP)
KOMURO KATSUHIRO (JP)
Application Number:
PCT/JP1999/005187
Publication Date:
April 13, 2000
Filing Date:
September 22, 1999
Export Citation:
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Assignee:
HITACHI LTD (JP)
MORITA AYUMU (JP)
TUJI MASASHIGE (JP)
TANIMIZU TORU (JP)
KAJIWARA SATORU (JP)
KOMURO KATSUHIRO (JP)
International Classes:
H01H33/662; H01H33/666; H01H1/58; H01H31/00; H01H33/02; (IPC1-7): H01H33/66
Foreign References:
US5808258A1998-09-15
JPS6176644U1986-05-23
JPS55169036U1980-12-04
Other References:
See also references of EP 1119010A4
Attorney, Agent or Firm:
Sakuta, Yasuo (Ltd. 5-1, Marunouchi 1-chome Chiyoda-ku Tokyo, JP)
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