Articulated clinch joint for molded case circuit breaker

1. A movable contact arm assembly for a circuit breaker assembly, the circuit breaker assembly including a housing assembly, a conductor assembly, and an operating mechanism, said housing assembly defining a substantially enclosed space, said conductor assembly including a fixed contact conductor assembly and a movable contact conductor assembly, said conductor assembly substantially disposed in said housing assembly enclosed space, said fixed contact conductor assembly including a fixed contact, said movable contact conductor assembly including a cross bar assembly and a conductive base conductor assembly, said cross bar assembly including a primary pivot first component and a secondary pivot first component, said conductive base conductor assembly including a clinch joint first component, said operating mechanism including an actuator coupling first component, said operating mechanism operatively coupled to said movable contact conductor assembly and structured to move a movable contact arm assembly between an open, first position and a closed, second position, said movable contact arm assembly comprising:

an elongated member including a distal tip, a first end, a medial portion, an actuator coupling second component, a primary pivot second component, a secondary pivot second component, a clinch joint second component, a second end, and a proximal tip;

wherein, during an over-current event, said movable contact arm assembly member generates a loop force;

wherein a loop force first portion is disposed on a first longitudinal side of said movable contact arm assembly member primary pivot second component, and, a loop force second portion is disposed on a second longitudinal side of said movable contact arm assembly member primary pivot second component;

wherein said loop force first portion has a greater longitudinal length than said loop force second portion;

wherein said movable contact arm assembly member primary pivot second component is disposed at said movable contact arm assembly member medial portion;

said movable contact arm assembly member secondary pivot second component is disposed at said movable contact arm assembly member second end;

said loop force first portion substantially affects said movable contact arm assembly member first end; and

said loop force second portion substantially affects said movable contact arm assembly member second end.

2. A movable contact arm assembly for a circuit breaker assembly, the circuit breaker assembly including a housing assembly, a conductor assembly, and an operating mechanism, said housing assembly defining a substantially enclosed space, said conductor assembly including a fixed contact conductor assembly and a movable contact conductor assembly, said conductor assembly substantially disposed in said housing assembly enclosed space, said fixed contact conductor assembly including a fixed contact, said movable contact conductor assembly including a cross bar assembly and a conductive base conductor assembly, said cross bar assembly including a primary pivot first component and a secondary pivot first component, said conductive base conductor assembly including a clinch joint first component, said operating mechanism including an actuator coupling first component, said operating mechanism operatively coupled to said movable contact conductor assembly and structured to move a movable contact arm assembly between an open, first position and a closed, second position, said movable contact arm assembly comprising:

an elongated member including a distal tip, a first end, a medial portion, an actuator coupling second component, a primary pivot second component, a secondary pivot second component, a clinch joint second component, a second end, and a proximal tip;

wherein, during an over-current event, said movable contact arm assembly member generates a loop force;

wherein a loop force first portion is disposed on a first longitudinal side of said movable contact arm assembly member primary pivot second component, and, a loop force second portion is disposed on a second longitudinal side of said movable contact arm assembly member primary pivot second component; and

wherein said movable contact arm assembly member secondary pivot second component is an arcuate slot with a center disposed generally at said movable contact arm assembly member primary pivot second component.

3. A movable contact conductor assembly for a circuit breaker assembly, the circuit breaker assembly including a housing assembly, a conductor assembly, and an operating mechanism, said housing assembly defining a substantially enclosed space, said conductor assembly including a fixed contact conductor assembly substantially disposed in said housing assembly enclosed space, said fixed contact conductor assembly including a fixed contact, said operating mechanism including an actuator coupling first component, said operating mechanism operatively coupled to said conductor assembly and structured to move a movable contact arm assembly between an open, first position and a closed, second position, said movable contact conductor assembly comprising:

a cross bar assembly including a primary pivot first component and a secondary pivot first component;

a conductive base conductor assembly including a clinch joint first component;

a movable contact arm assembly including an elongated member including a distal tip, a first end, a medial portion, an actuator coupling second component, a primary pivot second component, a secondary pivot second component, a clinch joint second component, a second end, and a proximal tip;

said conductive base conductor assembly clinch joint first component engageably coupled to said movable contact arm assembly member clinch joint second component;

said cross bar assembly primary pivot first component pivotally coupled to said contact arm assembly body primary pivot second component forming a primary pivot coupling;

said cross bar assembly secondary pivot first component pivotally coupled to said contact arm assembly body secondary pivot second component forming a secondary pivot coupling;

wherein, during an over-current event, said movable contact arm assembly member generates a loop force;

wherein a loop force first portion is disposed on a first longitudinal side of said movable contact arm assembly member primary pivot second component, and, a loop force second portion is disposed on a second longitudinal side of said movable contact arm assembly member primary pivot second component;

wherein said loop force first portion has a greater longitudinal length than said loop force second portion;

wherein said movable contact arm assembly member primary pivot second component is disposed at said movable contact arm assembly member medial portion;

said movable contact arm assembly member secondary pivot second component is disposed at said movable contact arm assembly member second end;

said loop force first portion substantially affects said movable contact arm assembly member first end; and

said loop force second portion substantially affects said movable contact arm assembly member second end.

4. A movable contact conductor assembly for a circuit breaker assembly, the circuit breaker assembly including a housing assembly, a conductor assembly, and an operating mechanism, said housing assembly defining a substantially enclosed space, said conductor assembly including a fixed contact conductor assembly substantially disposed in said housing assembly enclosed space, said fixed contact conductor assembly including a fixed contact, said operating mechanism including an actuator coupling first component, said operating mechanism operatively coupled to said conductor assembly and structured to move a movable contact arm assembly between an open, first position and a closed, second position, said movable contact conductor assembly comprising:

a cross bar assembly including a primary pivot first component and a secondary pivot first component;

a conductive base conductor assembly including a clinch joint first component;

a movable contact arm assembly including an elongated member including a distal tip, a first end, a medial portion, an actuator coupling second component, a primary pivot second component, a secondary pivot second component, a clinch joint second component, a second end, and a proximal tip;

said conductive base conductor assembly clinch joint first component engageably coupled to said movable contact arm assembly member clinch joint second component;

said cross bar assembly primary pivot first component pivotally coupled to said contact arm assembly body primary pivot second component forming a primary pivot coupling;

said cross bar assembly secondary pivot first component pivotally coupled to said contact arm assembly body secondary pivot second component forming a secondary pivot coupling;

wherein, during an over-current event, said movable contact arm assembly member generates a loop force;

wherein a loop force first portion is disposed on a first longitudinal side of said movable contact arm assembly member primary pivot second component, and, a loop force second portion is disposed on a second longitudinal side of said movable contact arm assembly member primary pivot second component; and

wherein said movable contact arm assembly member secondary pivot second component is an arcuate slot with a center disposed generally at said movable contact arm assembly member primary pivot second component.

5. A circuit breaker assembly, the circuit breaker assembly comprising:

a housing assembly defining a substantially enclosed space;

a conductor assembly including a fixed contact conductor assembly and a movable contact conductor assembly;

said fixed contact conductor assembly substantially disposed in said housing assembly enclosed space and including a fixed contact;

an operating mechanism including an actuator coupling first component;

said operating mechanism operatively coupled to said conductor assembly and structured to move a movable contact arm assembly between an open, first position and a closed, second position;

said movable contact conductor assembly substantially disposed in said housing assembly enclosed space and including a cross bar assembly, a conductive base conductor assembly, and a movable contact arm assembly;

said cross bar assembly including a primary pivot first component and a secondary pivot first component;

said conductive base conductor assembly including a clinch joint first component;

said movable contact arm assembly including an elongated member including a distal tip, a first end, a medial portion, an actuator coupling second component, a primary pivot second component, a secondary pivot second component, a clinch joint second component, a second end, and a proximal tip;

said conductive base conductor assembly clinch joint first component engageably coupled to said contact arm assembly body clinch joint second component;

said cross bar assembly primary pivot first component pivotally coupled to said contact arm assembly body primary pivot second component forming a primary pivot coupling;

said cross bar assembly secondary pivot first component pivotally coupled to said contact arm assembly body secondary pivot second component forming a secondary pivot coupling;

said operating mechanism actuator coupling first component coupled to said movable contact arm assembly member actuator coupling second component;

wherein, during an over-current event, said movable contact arm assembly member generates a loop force;

wherein a loop force first portion is disposed on a first longitudinal side of said movable contact arm assembly member primary pivot second component, and, a loop force second portion is disposed on a second longitudinal side of said movable contact arm assembly member primary pivot second component;

wherein said loop force first portion has a greater longitudinal length than said loop force second portion;

wherein said movable contact arm assembly member primary pivot second component is disposed at said movable contact arm assembly member medial portion;

said movable contact arm assembly member secondary pivot second component is disposed at said movable contact arm assembly member second end;

said loop force first portion substantially affects said movable contact arm assembly member first end; and

said loop force second portion substantially affects said movable contact arm assembly member second end.

6. A circuit breaker assembly, the circuit breaker assembly comprising:

a housing assembly defining a substantially enclosed space;

a conductor assembly including a fixed contact conductor assembly and a movable contact conductor assembly;

said fixed contact conductor assembly substantially disposed in said housing assembly enclosed space and including a fixed contact;

an operating mechanism including an actuator coupling first component;

said operating mechanism operatively coupled to said conductor assembly and structured to move a movable contact arm assembly between an open, first position and a closed, second position;

said movable contact conductor assembly substantially disposed in said housing assembly enclosed space and including a cross bar assembly, a conductive base conductor assembly, and a movable contact arm assembly;

said cross bar assembly including a primary pivot first component and a secondary pivot first component;

said conductive base conductor assembly including a clinch joint first component;

said movable contact arm assembly including an elongated member including a distal tip, a first end, a medial portion, an actuator coupling second component, a primary pivot second component, a secondary pivot second component, a clinch joint second component, a second end, and a proximal tip;

said conductive base conductor assembly clinch joint first component engageably coupled to said contact arm assembly body clinch joint second component;

said cross bar assembly primary pivot first component pivotally coupled to said contact arm assembly body primary pivot second component forming a primary pivot coupling;

said cross bar assembly secondary pivot first component pivotally coupled to said contact arm assembly body secondary pivot second component forming a secondary pivot coupling;

said operating mechanism actuator coupling first component coupled to said movable contact arm assembly member actuator coupling second component;

wherein, during an over-current event, said movable contact arm assembly member generates a loop force;

wherein a loop force first portion is disposed on a first longitudinal side of said movable contact arm assembly member primary pivot second component, and, a loop force second portion is disposed on a second longitudinal side of said movable contact arm assembly member primary pivot second component; and

wherein said movable contact arm assembly member secondary pivot second component is an arcuate slot with a center disposed generally at said movable contact arm assembly member primary pivot second component.