Earthing switch

- ABB Technology AG
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Description

FIG. 1 is a front perspective view of an earthing switch showing our new design.

FIG. 2 is a rear perspective view thereof.

FIG. 3 is a left side elevational view thereof.

FIG. 4 is a right side elevational view thereof.

FIG. 5 is a top plan view thereof.

FIG. 6 is a bottom plan view thereof.

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

FIG. 8 is a rear elevational view thereof.

The broken line showing of text and other alphanumeric characters is for environmental purposes only and forms no part of the claimed design.

Claims

The ornamental design for an earthing switch, as shown and described.

Referenced Cited
U.S. Patent Documents
D274720 July 17, 1984 Hannich et al.
D343382 January 18, 1994 Hagura et al.
D345137 March 15, 1994 Thomas
6239986 May 29, 2001 Otsuka
D453146 January 29, 2002 Kent et al.
D506977 July 5, 2005 Lee
D562234 February 19, 2008 Morihara et al.
D568242 May 6, 2008 Ogawa
D571303 June 17, 2008 Jokiniemi et al.
Patent History
Patent number: D657742
Type: Grant
Filed: Oct 27, 2010
Date of Patent: Apr 17, 2012
Assignee: ABB Technology AG (Zurich)
Inventors: Volker Grafe (Muelheim), Hans-Willi Ott (Ratingen)
Primary Examiner: Derrick Holland
Attorney: Buchanan Ingersoll & Rooney PC
Application Number: 29/377,898
Classifications
Current U.S. Class: Transformer, Rectifier Or Casing Therefor (3) (D13/110)