Combined circuit breaker and current limiting attachment

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Description

FIG. 1 is a front and upper right perspective view of a combined circuit breaker and current limiting attachment showing our new design;

FIG. 2 is a rear and upper left perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a rear elevational view thereof;

FIG. 7 is a right side elevational view thereof; and,

FIG. 8 is a left side elevational view thereof.

Referenced Cited
U.S. Patent Documents
D310822 September 25, 1990 Danek
D318460 July 23, 1991 Heath et al.
D319627 September 3, 1991 Smith et al.
4292920 October 6, 1981 Meiners et al.
4786885 November 22, 1988 Morris et al.
4794356 December 27, 1988 Yu et al.
4858056 August 15, 1989 Russell
4945327 July 31, 1990 Doughty et al.
4965544 October 23, 1990 Kelaita, Jr. et al.
Other references
  • Circuit Breaker on p. 5 of Square D brochure SD231, Sep. 1985.
Patent History
Patent number: D325727
Type: Grant
Filed: Nov 5, 1990
Date of Patent: Apr 28, 1992
Assignee: Mitsubishi Denki Kabushiki Kaisha (Tokyo)
Inventors: Shiro Murata (Fukuyama), Shinji Yamagata (Fukuyama)
Primary Examiner: Susan J. Lucas
Assistant Examiner: J. Sincavage
Law Firm: Burns, Doane, Swecker & Mathis
Application Number: 7/609,212