Gas insulated switchgear

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Description

FIG. 1 is a front, top and left side perspective view of a gas insulated switchgear, showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a left side elevational view thereof; and,

FIG. 7 is a right side elevational view thereof.

Claims

The ornamental design for a gas insulated switchgear, as shown and described.

Referenced Cited
U.S. Patent Documents
4379957 April 12, 1983 Calvino
4862319 August 29, 1989 Suzuyama et al.
D321508 November 12, 1991 Ramos
5350892 September 27, 1994 Rozier
6573469 June 3, 2003 Piazza
6624372 September 23, 2003 Ogawa et al.
6683267 January 27, 2004 Piazza et al.
6784392 August 31, 2004 Piazza et al.
D531132 October 31, 2006 McCord et al.
D531133 October 31, 2006 McCord et al.
20040037025 February 26, 2004 Abe
20060283841 December 21, 2006 Sologuren-Sanchez et al.
Patent History
Patent number: D562256
Type: Grant
Filed: Oct 16, 2006
Date of Patent: Feb 19, 2008
Assignee: Mitsubishi Electric Corporation (Tokyo)
Inventors: Masanori Osumi (Tokyo), Hitoshi Sadakuni (Tokyo), Osamu Kisanuki (Tokyo), Takuya Otsuka (Tokyo), Yuki Hyodo (Tokyo), Kiyoshi Sonoda (Tokyo), Keiichiro Nakamura (Tokyo), Yukinori Koike (Tokyo), Katsuhiko Nakamura (Tokyo), Hitoshi Taniguchi (Tokyo), Naochika Yamamoto (Tokyo)
Primary Examiner: Selina Sikder
Assistant Examiner: Thomas J Johannes
Attorney: Sughrue Mion, PLLC
Application Number: 29/267,459
Classifications
Current U.S. Class: Switch Or Casing Therefor (18) (D13/158)