Frequency converter

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Description

FIG. 1 is a front elevational view of a frequency converter showing my new design;

FIG. 2 is a rear 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 front, top and side perspective view thereof, and,

FIG. 8 is a rear, top and side view perspective view thereof.

Claims

The ornamental design for a frequency converter, as shown and described.

Referenced Cited
U.S. Patent Documents
D363056 October 10, 1995 Vinciarelli et al.
D401216 November 17, 1998 Person et al.
D403301 December 29, 1998 Lehmann et al.
D425017 May 16, 2000 Leung
D505915 June 7, 2005 Hussaini et al.
D548183 August 7, 2007 Hakala et al.
D606017 December 15, 2009 Charlson et al.
Patent History
Patent number: D661250
Type: Grant
Filed: Apr 29, 2011
Date of Patent: Jun 5, 2012
Assignee: Siemens Aktiengesellschaft (München)
Inventor: Jan Andersson (Erlangen)
Primary Examiner: Derrick Holland
Attorney: Henry M. Feiereisen
Application Number: 29/390,865
Classifications
Current U.S. Class: Transformer, Rectifier Or Casing Therefor (3) (D13/110)