Contactor

Claim 2

A contactor comprising an insulating support, a contactorstructure supported on said insulating support, said contactorstructure comprising a stationary contact structure, a movable structure comprising an insulating carrier and a movable contact structure, means supporting said movable contact structure on said insulating carrier in proximity to one end of said insulating carrier, pivot support means supporting said insulating carrier in proximity to the opposite end of said insulating carrier for movement about a fixed pivot, electromagnetic means, said electromagnetic means comprising a magnetic yoke and an energizing coil supported on said insulating support, said electromagnetic means comprising a magnetic armature supported on said insulating carrier as part of said movable structure with said magnetic armature being supported on said insulating carrier between said movable contact structure and said pivot support means, an arc hood structure supported on said insulating support in proximity to said stationary and movable contact structure, kick-out spring means biasing said movable structure toward an open unactuated position, upon energization of said coil said armature being attracted to said yoke to pivotally move said movable structure in a closing direction against the bias of said kick-out spring means to an actuated closed position wherein said movable contact structure engages said stationary contact structure, upon deenergization of said energizing coil to open said contact said kick-out spring means pivotally moving said movable structure in an opening direction toward an open position wherein said movable contact structure is disengaged from said stationary contact structure, and stop means on said arc hood structure engaging said movable structure to limit opening movement of said movable structure.

Claim 3

A contact according to claim 1, and said stop means on said arc hood structure engaging said insulating carrier to limit opening movement of said movable structure.

Claim 4

A contactor according to claim 1, said arc hood structure being removably secured to said insulating support, and upon removal of said Arc hood structure said movable structure being pivotally movable in the opening direction past said open position to a maintenance position.

Claim 5

A contactor according to claim 3, and in said maintenance position said movable structure being moved through an angle of more than 80* from the closed position of said movable structure.

Claim 6

A contactor comprising an insulating support, a contactor structure on said insulating support, said contactor structure comprising a stationary contact structure, a movable contact structure cooperable with said stationary contact structure, an insulating carrier, means supporting said movable contact structure on said insulating carrier in proximity to one end of said insulating carrier, said insulating carrier comprising a pair of spaced insulating leg portions in proximity to the other end thereof, pivot support means supporting said spaced insulating leg portions for pivotal movement about an axis, said pivot support means comprising a separate pivot support means for each of said spaced insulating leg portions, electromagnetic means, said electromagnetic means comprising a stationary magnetic yoke and an energizing coil supported on said insulating support, said electromagnetic means comprising a magnetic armature supported on said insulating carrier between said movable contact structure and said pivot support means, kick-out spring means biasing said insulating carrier toward an unactuated open position, an overload relay removably supported on said insulating support between said spaced insulating leg portions of said insulating carrier, said overload relay being responsive to an overload in said contactor to effect deenergization of said coil when said contactor is in the closed position, upon energization of said coil said armature being attracted to said stationary magnetic member to pivot said insulating carrier about said axis to thereby move said movable contact structure into engagement with said stationary contact structure, and upon deenergization of said coil said kick-out spring means moving said movable structure to an open position wherein said movable contact structure is spaced from said stationary contact structure.

Claim 7

A contactor comprising an insulating support, a contactor structure on said insulating support, said contactor structure comprising a stationary contact structure, a movable contact structure cooperable with said stationary contact structure, an insulating carrier, means supporting said movable contact structure on said insulating carrier in proximity to one end of said insulating carrier, said insulating carrier comprising a pair of spaced insulating leg portions in proximity to the other end thereof, pivot support means supporting said spaced insulating leg portions for pivotal movement about an axis, said pivot support means comprising a separate pivot support means for each of said spaced insulating leg portions, electromagnetic means, said electromagnetic means comprising a stationary magnetic yoke and an energizing coil supported on said insulating support, said electromagnetic means comprising a magnetic armature supported on said insulating carrier between said movable contact structure and said pivot support means, kick-out spring means biasing said insulating carrier toward an unactuated open position, an overload relay removably supported on said insulating support between said spaced insulating leg portions of said insulating carrier, said overload relay being responsive to an overload in said contactor to effect deenergization of said coil when said contactor is in the closed position, upon energization of said coil said armature being attracted to said stationary magnetic member to pivot said insulating carrier about said axis to thereby move said movable contact structure into engagement with said stationary contact structure, and upon deenergization of said coil said kick-out spring means moving said movable structure to an open position wherein said movable contact structure is spaced from said stationary contact structure.

Claim 8

A contactor according to claim 5, an arc hood structure removably supported on said insulating support in proximity to said contact structures, upon removal of said arc hood structure from said insulating support said movable structure being pivotally movable past the open position thereof to a maintenance position, and in said maintenance position said movable contact structure being disposed generally over said overload relay.

Claim 9

A contactor according to claim 5, a generally U-shaped support plate supported on said insulating support, a first pin on said support plate extending from a first leg of said support plate generally toward the second leg of said support plate, a second pin on said support plate extending from said second leg of said support plate in the same direction as said first pin and on the outside of said second leg, a first of said insulating leg portions of said insulating carrier being pivotally supported on said first pin and the second of said insulating leg portions of said insulating carrier being pivotally supported on said second pin.

Claim 10

A contactor according to claim 7, said second pin comprising a threaded end portion, and securing means on said threaded end portion securing said insulating carrier on said first and second pins.

Claim 11

A contactor according to claim 8, stop means on said arc hood structure engaging said insulating carrier to limit opening movement of said insulating carrier, and with said arc hood structure removed said insulating carrier being pivotally movable to said maintenance position without requiring further disassembly of said contactor.