Convection cooled frequency converter
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Description
The broken lines shown represent unclaimed subject matter and form no part of the claimed design.
Claims
The ornamental design for a convention cooled frequency converter, as shown and described.
Referenced Cited
U.S. Patent Documents
| D365082 | December 12, 1995 | Cook et al. |
| 5835350 | November 10, 1998 | Stevens |
| D403301 | December 29, 1998 | Lehmann et al. |
| 6091604 | July 18, 2000 | Plougsgaard et al. |
| D455399 | April 9, 2002 | Imamura et al. |
| 6459586 | October 1, 2002 | Miller et al. |
| D490785 | June 1, 2004 | Boylan et al. |
| D494539 | August 17, 2004 | Alcantar et al. |
| D510320 | October 4, 2005 | Tuomola et al. |
| D510906 | October 25, 2005 | Vinciarelli et al. |
Patent History
Patent number: D641697
Type: Grant
Filed: Oct 13, 2009
Date of Patent: Jul 19, 2011
Assignee: Siemens Aktiengesellschaft (München)
Inventors: Simon Charlson (Manchester), Lyndon Shenton (Newcastle-Under-Lyme), Jürgen Wagner (Stein)
Primary Examiner: Prabhakar Deshmukh
Assistant Examiner: Derrick Holland
Attorney: Henry M. Feiereisen
Application Number: 29/345,264
Type: Grant
Filed: Oct 13, 2009
Date of Patent: Jul 19, 2011
Assignee: Siemens Aktiengesellschaft (München)
Inventors: Simon Charlson (Manchester), Lyndon Shenton (Newcastle-Under-Lyme), Jürgen Wagner (Stein)
Primary Examiner: Prabhakar Deshmukh
Assistant Examiner: Derrick Holland
Attorney: Henry M. Feiereisen
Application Number: 29/345,264
Classifications
Current U.S. Class:
Transformer, Rectifier Or Casing Therefor (3) (D13/110)