| Patent Number |
Title Of Patent |
Date Issued |
| 4806893 |
Molded case circuit breaker actuator-accessory unit |
February 21, 1989 |
| An integrated protection unit is a circuit breaker which includes basic overcurrent protection facility along with selective electrical accessories. A molded plastic accessory access cover secured to the integrated protection unit cover protects the accessory components contained wit |
| 4788621 |
Molded case circuit breaker multiple accessory unit |
November 29, 1988 |
| An integrated protection unit is a circuit breaker which includes basic overcurrent protection facility along with selective electrical accessories. A molded plastic accessory access cover secured to the integrated protection unit cover protects the accessory components contained wit |
| 4771254 |
Circuit breaker magnetic trip unit |
September 13, 1988 |
| A magnetic trip unit for molded case circuit breakers includes a pair of U-shaped magnets opposedly arranged around a part of the circuit breaker load strap and the armature strap. Circuit current in excess of a threshold value displaces the armature strap, causing it to articulate the |
| 4742321 |
Molded case circuit breaker with accessory functions |
May 3, 1988 |
| A molded case circuit breaker includes accessory functions such as an auxiliary switch and a shunt trip device mounted within the circuit breaker cover. A stain relief assembly interfaces the accessory wires with the circuit breaker case and cover. The strain relief fixture prevents |
| 4731921 |
Method of fabricating a molded case circuit breaker |
March 22, 1988 |
| An interchangeable operating mechanism assembly for molded case circuit breakers having a detachable movable contact arm and trip unit assembly allows the same mechanism assembly to be employed across a wide range of breaker ratings. A snap-on common trip bar attachment further allows |
| 4698903 |
Circuit breaker highspeed assembly |
October 13, 1987 |
| A circuit breaker design and process for high speed assembly utilizes a unique secondary latch arrangement to reduce frictional forces and increase the breaker calibration test yield. The design allows for interchangability of the trip unit by first pre-assembling the arc chute cavit |
| 4679016 |
Interchangeable mechanism for molded case circuit breaker |
July 7, 1987 |
| An interchangeable operating mechanism assembly for molded case circuit breakers having a detachable movable contact arm and trip unit assembly allows the same mechanism assembly to be employed across a wide range of breaker ratings. A snap-on common trip bar attachment further allows |
| 4650272 |
Circuit breaker line terminal screw retainer |
March 17, 1987 |
| A composite line strap is used with molded case circuit breakers to support the circuit breaker stationary contact and to retain the circuit breaker line terminal screw. The fixed contact is welded to the line strap within the breaker at a first end and the line terminal screw is attache |
| 4622530 |
Circuit breaker assembly for high speed manufacture |
November 11, 1986 |
| A circuit breaker design and process for high speed assembly utilizes a unique secondary latch arrangement to reduce frictional forces and increase the breaker calibration test yield. The design allows for interchangeability of the trip unit by first pre-assembling the arc chute cavi |
