Locking fastening apparatus
AssigneePratt & Whitney Rocketdyne, Inc.
InventorMark J. Ricciardo
Life of this patent
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Abstract
In some embodiments fastening apparatus includes a threaded fastening element adapted to be threaded into a hole provided in a first component, the threaded fastening element including a locking collar that is defined by at least one outer peripheral surface, and a locking washer adapted to fit within a recess formed in the component to limit rotation of the threaded fastening element once the element is threaded into the component hole, the washer including an inner opening defined by at least one inner peripheral surface and a non-circular outer shape defined by an outer peripheral surface, the inner opening being adapted to receive the locking collar such that the at least one outer peripheral surface of the collar can contact the at least one inner peripheral surface of the washer.
Claims18
A fastening apparatus comprising:
- a threaded fastening element adapted to be threaded into a component hole provided in a first component, the threaded fastening element including a locking collar that is defined by a non-circular outer peripheral surface;
- and
- a locking washer adapted to fit within a recess formed in the component to limit rotation of the threaded fastening element once the element is threaded into the component hole, the washer including an inner opening defined by at least one inner peripheral surface and a non-circular outer shape defined by a smooth, continuous outer peripheral surface, the inner opening being adapted to receive the locking collar such that the non-circular outer peripheral surface of the collar can contact the at least one inner peripheral surface of the washer.
A fastening apparatus comprising:
- a threaded stud adapted to be threaded into a component hole provided in a component, the stud including a first threaded portion adapted to thread into the component hole, a second threaded portion that is exposed when the stud is threaded into the component hole, and a locking collar adapted to limit rotation of the stud relative to the component, the collar being defined by a non-circular outer peripheral surfaces;
- and
- a locking washer adapted to fit within a recess formed in the component, the washer including an inner opening defined by inner peripheral surfaces and a non-circular outer shape defined by a smooth, continuous outer peripheral surface, the inner opening being adapted to receive the locking collar such that the non-circular outer peripheral surfaces of the collar can contact the inner peripheral surfaces of the washer.
A fastening apparatus comprising:
- a threaded insert adapted to be threaded into a component hole provided in a component, the insert including a threaded portion adapted to thread into the component hole, a threaded opening adapted to receive a threaded bolt, and a locking collar adapted to limit rotation of the insert relative to the component, the collar being defined by a non-circular outer peripheral surfaces;
- and
- a locking washer adapted to fit within a recess formed in the component, the locking washer including an inner opening defined by inner peripheral surfaces and a non-circular outer shape defined by a smooth, continuous outer peripheral surface, the recess larger than the non-circular outer shape, the inner opening being adapted to receive the locking collar such that the non-circular outer peripheral surfaces of the collar can contact the inner peripheral surfaces of the washer.
Dependencies are inferred from the claim text.