Frequency converter

- ABB Technology Oy
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Description

FIG. 1 is a first perspective view of a frequency converter showing our new and ornamental design,

FIG. 2 is a second perspective view thereof,

FIG. 3 is a front view thereof,

FIG. 4 is a rear view thereof,

FIG. 5 is a first side view thereof,

FIG. 6 is an opposite, second side view thereof,

FIG. 7 is a first end view thereof; and,

FIG. 8 is an opposite, second end view thereof.

Claims

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

Referenced Cited
U.S. Patent Documents
D403301 December 29, 1998 Lehmann et al.
6169661 January 2, 2001 Lee
D548183 August 7, 2007 Hakala et al.
D586744 February 17, 2009 Jaskari
D641697 July 19, 2011 Charlson et al.
D647846 November 1, 2011 Engblom et al.
D654022 February 14, 2012 Sun et al.
20080174948 July 24, 2008 Davis
Patent History
Patent number: D741259
Type: Grant
Filed: Nov 19, 2014
Date of Patent: Oct 20, 2015
Assignee: ABB Technology Oy (Helsinki)
Inventors: Mohammad Siddiqui (Bristol), Guy Lamb (Saltford), David Greensmith (Stonehouse), Bob Combes (Berkley)
Primary Examiner: Derrick Holland
Application Number: 29/509,618
Classifications
Current U.S. Class: Transformer, Rectifier Or Casing Therefor (3) (D13/110)