Interrupter switch

- S&C Electric Company
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Description

FIG. 1 is a perspective view of an interrupter switch in the open position showing my new design;

FIG. 2 is a front elevational view of an interrupter switch in the closed position showing my new design;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top-plan view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is a rear elevational view of an interrupter switch showing a second embodiment of my new design, the difference being in the appearance of the insulators. All other aspects of the second embodiment are the same as those shown in FIGS. 1 and 7;

FIG. 9 is a left side elevational view thereof;

FIG. 10 is a right side elevational view thereof; and

FIG. 11 is a top plan view thereof.

Referenced Cited
U.S. Patent Documents
2954450 November 1958 Mikos
3308259 March 1967 Hulteen et al.
3647996 March 1972 Bernatt et al.
3787651 January 1974 Chabala et al.
4013852 March 22, 1977 Roberts et al.
4103129 July 25, 1978 Evans et al.
4107487 August 15, 1978 Evans
4126773 November 21, 1978 Bernatt et al.
Foreign Patent Documents
09528216 July 1956 CAX
0912621 October 1972 CAX
Other references
  • Descriptive Bulletin 761-30 dated Apr. 16, 1984 entitled "S&C AldutiRupter.RTM. Switches".
Patent History
Patent number: D312071
Type: Grant
Filed: Jun 29, 1987
Date of Patent: Nov 13, 1990
Assignee: S&C Electric Company (Chicago, IL)
Inventor: John Urbanek (Chicago, IL)
Primary Examiner: Susan J. Lucas
Assistant Examiner: Joel Sincavage
Attorney: James V. Lapacek
Application Number: 7/67,905