Rotary actuator
AssigneeLB Bentley Limited
InventorKrzysztof Jurczyk
Life of this patent
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Abstract
An actuator comprising a housing, a piston driven member axially movable within the housing and being coupled to the housing by a first pin and ramp coupling such that axial movement of the piston driven member relative to the housing is accompanied by angular movement of the piston driven member relative to the housing. The actuator includes an output member constrained against axial movement relative to the housing and coupled to the piston driven member by a second pin and ramp coupling such that both axial and angular movement of the piston driven member drive the output member for angular movement relative to the housing.
Claims18
An actuator comprising a housing, a piston driven member axially movable within the housing and being coupled to the housing by a first pin and ramp coupling such that axial movement of the piston driven member relative to the housing is accompanied by angular movement of the piston driven member relative to the housing, and an output member constrained against axial movement relative to the housing and coupled to the piston driven member by a second pin and ramp coupling such that both axial and angular movement of the piston driven member drive the output member for angular movement relative to the housing.
An actuator comprising an output member couplable by way of a first axially moveable clutch member with a drive transmission member, a cam member engageable with the first clutch member, an input cooperable with the cam member such that an initial angular movement of the input drives the cam member and first clutch member for axial movement to disengage the output member from the drive transmission member, subsequent movement of the input engaging a second clutch so as to permit further angular movement of the input and cam member to drive the transmission member for angular movement.
Dependencies are inferred from the claim text.