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US 4,396,813 AGranted
Enclosed circuit interrupter of the drawout type having a position actuated drive clutch on the drive means
AssigneeWestinghouse Electric Corp.
InventorsGlenn A. Hesselbart, Robert E. Wobrak
Life of this patent
Estimating the term…
Abstract
Circuit interrupter switchgear including a drawout unit mounted within an enclosure and operable between engaged and disengaged positions by means of a drive means having a two-way position actuated drive clutch. The position actuated drive clutch has an engaging means that is responsive to a sensing means for selectively engaging and disengaging a torque source with the drive means according to predetermined positions of the drawout unit.
Claims15
A clutch, comprising:
- an input shaft adapted for connection to a torque source;
- an output shaft adapted for connection to a load;
- a clutch body having first and second keyways disposed therein, said clutch body being rigidly connected to said input shaft;
- a drive collar rigidly attached to said output shaft;
- first and second clutch pawls disposed within said first and second keyways, respectively;
- and
- engagement means for selectively engaging and disengaging each of said first and second clutch pawls with said drive collar to selectively provide and remove a rigid connection between said clutch body and said drive collar to selectively transmit and interrupt torque from said input shaft to said output shaft.
4 more elements
A position activated clutch, comprising:
- a sensing means for sensing the position of a load;
- an input shaft adapted for connection to a torque source;
- an output shaft adapted for connection to a load;
- a clutch body having first and second keyways disposed therein, said clutch body being rigidly connected to one of said input and output shafts;
- a drive collar rigidly attached to the other of said input and output shafts;
- first and second clutch pawls disposed within said first and second keyways, respectively;
- and
- engagement means responsive to said sensing means for selectively engaging and disengaging each of said first and second clutch pawls with said drive collar to selectively provide and remove a rigid connection between said clutch body and said drive collar to selectively transmit and interrupt torque from said input shaft to said output shaft in either direction of rotation.
5 more elements
Switchgear, comprising:
- a cabinet having line terminals;
- a movable circuit breaker assembly having complementary terminals with said line terminals and adapted for insertion and removal from said line terminals;
- drive means having a rotatable shaft for moving said circuit breaker into and out of said cabinet, said rotatable shaft being adapted for connection to a torque source for rotating said shaft;
- a position activated clutch adapted for insertion between said torque source and said rotatable shaft for selectively engaging and disengaging said torque source with said rotatable shaft, said clutch including an input shaft adapted for connection to said torque source and an output shaft adapted for connection to said rotatable shaft, a clutch body having first and second keyways disposed therein, said clutch body being rigidly connected to one of said input and output shafts, a drive collar rigidly attached to the other of said input and output shafts, first and second clutch pawls disposed within said first and second keyways, respectively, sensing means for sensing the position of said circuit breaker assembly, and engagement means responsive to said sensing means for selectively engaging and disengaging each of said first and second clutch pawls with said drive collar to selectively provide and remove a rigid connection between said clutch body and said drive collar to selectively transmit and interrupt torque from said input shaft to said output shaft in either direction of rotation.
1 more element
A position actuated clutch, comprising:
- an input shaft adapted for connection to a torque source;
- an output shaft adapted for connection to a load;
- a clutch body having a keyway disposed therein, said clutch body being rigidly connected to one of said input and output shafts;
- a drive collar rigidly attached to the other of said input and output shafts;
- a clutch pawl disposed within said keyway;
- and
- engagement means for selectively engaging and disengaging said clutch pawl with said drive collar to selectively provide and remove a rigid connection between said clutch body and said drive collar to as to selectively transmit and interrupt torque from said input shaft to said output shaft.
4 more elements
A clutch, comprising:
- a first shaft;
- a second shaft;
- a clutch body, said clutch body being rigidly connected to said first shaft;
- a drive collar rigidly attached to said second shaft;
- first and second clutch pawls disposed on said clutch body;
- and
- engagement means for selectively engaging each of said first and second clutch pawls with said collar to selectively provide and remove a rigid connection between said clutch body and said drive collar to selectively transmit and interrupt torque between said first shaft and said second shaft.
4 more elements
A clutch, comprising:
- a first shaft;
- a second shaft;
- a clutch body, said clutch body being rigidly connected to said first shaft;
- a drive collar rigidly attached to said second shaft;
- first and second clutch pawls disposed on said collar;
- and
- engagement means for selectively engaging and disengaging each of said first and second clutch pawls with said clutch body to selectively provide and remove a rigid connection between said clutch body and said drive collar to selectively transmit and interrupt torque between said first shaft and said second shaft.
4 more elements
Dependencies are inferred from the claim text.