Design for an interrupter unit for a switch assembly

- S&C Electric Company
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Description

FIG. 1 is a perspective view of an interrupter unit for a switch assembly showing our new design;

FIG. 2 is a front elevational view thereof;

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; and

FIG. 7 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
3508178 April 1970 Chabala et al.
3909570 September 1975 Harner et al.
Foreign Patent Documents
675244 December 1963 CAX
Other references
  • Japanese Patent Office Design Gazette H1-512, Jul. 11, 1989, Registration No. 629050, (2 pp.). Takamatso Electric Works Bulletin No. 210-83A, (2 pp.).
Patent History
Patent number: D314758
Type: Grant
Filed: Nov 18, 1988
Date of Patent: Feb 19, 1991
Assignee: S&C Electric Company (Chicago, IL)
Inventors: Edward J. Rogers (Chicago, IL), Leonard V. Chabala (Maywood, IL)
Primary Examiner: James M. Gandy
Assistant Examiner: Joel Sincavage
Attorney: James V. Lapacek
Application Number: 7/273,433
Classifications
Current U.S. Class: Switch Or Casing Therefor (18) (D13/158)