Vacuum valve for a vacuum circuit breaker

Description

FIG. 1 is a front, top and right side perspective view of a vacuum valve for a vacuum circuit breaker, showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a right side elevational view thereof;

FIG. 7 is a rear elevational view thereof; and,

FIG. 8 is a cross-sectional view taken along line 8--8 in FIG. 2 with its internal mechanisms omitted.

Claims

The ornamental design for a vacuum valve for a vacuum circuit breaker, as shown and described.

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Inventors:	Miyazawa; Takayuki (Tama, JP), Fujiwara; Junji (Oume, JP), Sato; Kimiya (Tokorozawa, JP), Taniguchi; Makoto (Fuchu, JP), Ogawa; Satoshi (Fuchu, JP)
Assignee:	Kabushiki Kaisha Toshiba (Kawasaki, JP)
Appl. No.:	D/006,166
Filed:	March 22, 1993

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Foreign Application Priority Data

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Sep 22, 1992 [JP]			4-27639

Current U.S. Class:	D13/173
Field of Search:	;200/144B ;439/247,536 ;D13/160,173,174

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References Cited [Referenced By]

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U.S. Patent Documents

3928716	December 1975	Marrero
4403124	September 1983	Perkins et al.
4839477	June 1989	Orosz et al.
4879441	November 1989	Hamm et al.
4950178	August 1990	Harvey et al.

Foreign Patent Documents

	D839988		Jun 1992		JP

Other References

Asea Brown Boveri Catalog of Vacuum Circuit Breaker Type VD4, Aug. 20, 1992..

Primary Examiner: Burke; Wallace R.
Assistant Examiner: Sincavage; Joel
Attorney, Agent or Firm: Oblon, Spivak, McClelland, Maier & Neustadt