Transfer switch for alternative power sources to a load center

- Square D Company
Skip to: Description  ·  Claims  ·  References Cited  · Patent History  ·  Patent History
Description

FIG. 1 is a front view of a transfer switch for alternative power sources to a load center, showing our new design;

FIG. 2 is a left side view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a top view thereof; and,

FIG. 5 is a bottom view thereof.

The broken line showing of circuit breakers in FIG. 1 and load center panels in FIGS. 2 through 5 illustrates environmental detail and forms no part of the claimed design.

Claims

The ornamental design for a transfer switch for alternative power sources to a load center, as shown and described.

Referenced Cited
U.S. Patent Documents
D272446 January 31, 1984 Dellecave et al.
4885438 December 5, 1989 Tajima
5006675 April 9, 1991 Sakaguchi
5193665 March 16, 1993 Jankow
5581059 December 3, 1996 Chang
D400183 October 27, 1998 Flegel
D425490 May 23, 2000 Flegel
6376938 April 23, 2002 Williams
D462669 September 10, 2002 Schnackenberg et al.
D474751 May 20, 2003 Yoshida et al.
D476629 July 1, 2003 Green
6624534 September 23, 2003 Flegel
D490060 May 18, 2004 Green
Patent History
Patent number: D562257
Type: Grant
Filed: Oct 30, 2006
Date of Patent: Feb 19, 2008
Assignee: Square D Company (Palatine, IL)
Inventors: Randy William Blake (Marion, IA), George Edmund Burke, Jr. (Raleigh, NC), Chad R. Mittelstadt (Cedar Rapids, IA), Duane Lee Turner (Fairfax, IA)
Primary Examiner: Selina Sikder
Assistant Examiner: Thomas J Johannes
Application Number: 29/268,096
Classifications