Fused-switch unit

- Square D Company
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Description

FIG. 1 is a front perspective view of the fused-switch unit incorporating the new design;

FIG. 2 is a rear, perspective view thereof;

FIG. 3 is a side, right view thereof; and,

FIG. 4 is a top view.

Referenced Cited
U.S. Patent Documents
D176656 January 1956 Davis et al.
D320385 October 1, 1991 Owens et al.
3382331 May 1968 Jencks et al.
3711748 January 1973 Dietz
3760132 September 1973 Ellsworth et al.
4496916 January 29, 1985 Carpenter et al.
5148139 September 15, 1992 Dingle et al.
Foreign Patent Documents
2117178 October 1983 GBX
Other references
  • Circuit breakers on p. 44 of FPE Redi-reference Sep., 1963. Square D fusible switch on p. 13 of Electrical Systems Design Aug. 1988. Square D circuit breaker with handle on p. 27 of Electrical Systems Design, Aug. 1988.
Patent History
Patent number: D340697
Type: Grant
Filed: Jun 28, 1991
Date of Patent: Oct 26, 1993
Assignee: Square D Company (Palatine, IL)
Inventors: Phillip J. Dingle (Oxfordshire), Raymond W. Thomas (Swindon), Kenneth Neill (Swindon)
Primary Examiner: Wallace R. Burke
Assistant Examiner: J. Sincavage
Attorneys: Larry I. Golden, Kareem M. Irfan
Application Number: 7/724,327