Insulating through-bushing for an electrical conductor

- S&C Electric Company
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Description

FIG. 1 is a perspective view of an insulating through bushing for an electrical conductor showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a left side elevational view thereof; and,

FIG. 5 is a sectional view taken along the line 5--5 of FIG. 2.

The broken line showing of the element passing through the bushing is for illustrative purposes only and forms no part of the claimed design.

Referenced Cited
U.S. Patent Documents
2030370 September 1931 Hodtum
3202757 August 1965 Carlson et al.
3388212 June 1968 Nichols et al.
3708612 January 1973 Saxon et al.
4214118 July 22, 1980 Gray
Foreign Patent Documents
258802 April 1913 DE2
886327 August 1953 DEX
Other references
  • Georg Jordan GMBH Catalog Information (2 pp.). S&C Information Bulletin 102 dated Apr. 1989 (see p. 56). U.S. application Ser. No. 07/112,841 filed Oct. 23, 1987 (now abandoned). Lapp Insulator Company, LeRoy, New York, Catalog Number 8 (p. 131) 1959. Power Circuit Breaker Theory and Design, (pp. 540-541) Edited by C. H. Flursheim, IEE Monograph Series 17, 1975, Southgate, England.
Patent History
Patent number: D329043
Type: Grant
Filed: Oct 3, 1988
Date of Patent: Sep 1, 1992
Assignee: S&C Electric Company (Chicago, IL)
Inventors: Edward J. Rogers (Chicago, IL), Leonard V. Chabala (Maywood, IL)
Primary Examiner: Wallace R. Burke
Assistant Examiner: H. Baynham
Attorney: James V. Lapacek
Application Number: 7/252,711
Classifications
Current U.S. Class: Conduit, Duct Or Channel (D13/155)