Interrupter switch with selective circuit-isolating feature

- S&C Electric Company
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Description

FIG. 1 is a perspective view of an interrupter switch with selective circuit-isolating feature showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
3163736 December 1964 Mikos et al.
3627939 June 1970 Myers
4049936 September 20, 1977 Frink et al.
4541033 September 10, 1985 Saito
Other references
  • G & W Interrupter on p. 12 of Electrical Systems Design 3-88.
Patent History
Patent number: D321508
Type: Grant
Filed: Mar 30, 1989
Date of Patent: Nov 12, 1991
Assignee: S&C Electric Company (Chicago, IL)
Inventor: Joel A. Ramos (Chicago, IL)
Primary Examiner: Susan J. Lucas
Assistant Examiner: J. Sincavage
Attorney: James V. Lapacek
Application Number: 7/331,573