Variable speed drive for electric motors

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Description

FIG. 1 is a front view of the variable speed drive for electrical motors;

FIG. 2 is a rear view of the variable speed drive for electrical motors of FIG. 1;

FIG. 3 is a top view of the variable speed drive for electrical motors of FIG. 1;

FIG. 4 is a bottom view of the variable speed drive for electrical motors of FIG. 1;

FIG. 5 is a right side view of the variable speed drive for electrical motors of FIG. 1;

FIG. 6 is a left side view of the variable speed drive for electrical motors of FIG. 1; and,

FIG. 7 is a perspective view of the variable speed drive for electrical motors of FIG. 1.

Claims

The ornamental design for a variable speed drive for electric motors, as shown and described.

Referenced Cited
U.S. Patent Documents
D305115 December 19, 1989 Kondo et al.
D358753 May 30, 1995 Yoshida et al.
D372017 July 23, 1996 Suematsu et al.
D396688 August 4, 1998 Lin
D410624 June 8, 1999 Loh
D429687 August 22, 2000 Steiner et al.
D438176 February 27, 2001 Cornu
D456006 April 23, 2002 Maher et al.
D477277 July 15, 2003 Noguchi et al.
Patent History
Patent number: D503379
Type: Grant
Filed: Oct 7, 2002
Date of Patent: Mar 29, 2005
Assignee: Schneider Toshiba Inverter Europe SAS
Inventor: Daniel Gheno (Pacy sur Eure)
Primary Examiner: Stella Reid
Assistant Examiner: Daniel Bui
Attorney: Parkhurst & Wendel, L.L.P.
Application Number: 29/168,623
Classifications
Current U.S. Class: Transformer, Rectifier Or Casing Therefor (3) (D13/110)