Tool for removing collars
AssigneeRaytheon Technologies Corporation
InventorsDavid J. Eigner, Steven E. Eichner
Life of this patent
Estimating the term…
Abstract
A method comprises the steps of providing a tool over a collar secured to a stud on a gas turbine engine system. The collet is driven to rotate and remove the collar from the stud. A tool for removing collars from studs has a driver with a housing receiving a piston. A spring drives the piston, and the housing also has a hydraulic fluid supply opening for selectively receiving a hydraulic fluid to move the piston in opposition to a force from the spring. Collet fingers are movable between a released position and a secured position when a supply of hydraulic fluid is supplied into the housing.
Claims15
A tool for removing collars from studs comprising:
- a driver having a housing and receiving a piston moveably within said housing, a spring driving said piston, said housing also having a drive for selectively moving said piston in opposition to a force from said spring;
- collet fingers being moveable between a released position and a secured position;
- and
- wherein said housing having an opening and there being a conical surface on said piston, said conical surface being forced against edges of said opening in said housing to cam said collet fingers to said position.
A tool for removing collars from studs comprising:
- a driver having a housing and receiving a piston moveably within said housing, a spring driving said piston, said housing also having a drive for selectively moving said piston in opposition to a force from said spring;
- and
- collet fingers being moveable between a released position and a secured position;
- said drive includes a hydraulic fluid supply opening for selectively receiving a hydraulic fluid to move said piston in opposition to said force from said spring, and supply of hydraulic fluid controlling the movement of said collet fingers between said released position and said secured position;
- the supply of hydraulic fluid drives said piston to said released position and when the hydraulic fluid is released, said spring drives said piston to move the collet fingers to the secured position;
- and
- wherein a single trigger is actuated to supply said hydraulic fluid to drive said piston, then to release the hydraulic fluid to allow said spring to move said piston, and then to actuate a motor to drive said collet fingers to rotate.
A tool for removing collars from studs comprising:
- a collet including a plurality of collet fingers, and said collet fingers being driven between a released and a secured position;
- wherein said collet fingers move with a piston within a housing and hydraulic fluid drives said piston to move said collet fingers to the released position, and a spring operating in opposition to said hydraulic fluid to drive said piston and said collet fingers to said secured position, and said hydraulic fluid moving said piston into said housing to the relaxed position, and said spring driving said piston outwardly of said housing to said secured position;
- wherein said housing having an opening and there being a conical surface on said piston, said conical surface being forced against edges of said opening in said housing on to cam said collect fingers to said secured position.
Dependencies are inferred from the claim text.