U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

High-amp circuit breaker and a bistable element therefor

Patent 5021761 Issued on June 4, 1991. Estimated Expiration Date: Icon_subject September 28, 2009. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

2720416

Automatic and manually resettable miniaturized circuit breaker
Patent #: 4803455
Issued on: 02/07/1989
Inventor: Kuczynski

Combination push/pull electric switch and circuit breaker Patent #: 4814739
Issued on: 03/21/1989
Inventor: Moldovan

Inventors

Assignee

Application

No. 414095 filed on 09/28/1989

US Classes:

337/68, With direct contact separating means (e.g., plunger camming means)337/91, With reset means337/365Snap-action

Examiners

Primary: Broome, H.

Attorney, Agent or Firm

International Class

H01H 071/16

Abstract

A low voltage high-amp circuit breaker having a substantially rectangular bimetallic bistable element and a pair of terminals extending from the side thereof. The bistable element is attached to have one end move from a first normal electrically conductive position to a second non-electrically conductive position. The manual reset circuit breaker includes a manual reset lever and a non-conductive heat resistant extension blade connected to the reset lever via a rotatable shaft. The extension blade being positioned adjacent the moveable end of the bistable element and when the element is moved to its second position, the blade is moved to prevent the element from returning to its first conductive position until the circuit breaker is manually reset.

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