Invention Grant
- Patent Title: Droop ring with removable wear elements
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Application No.: US16022375Application Date: 2018-06-28
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Publication No.: US11235870B2Publication Date: 2022-02-01
- Inventor: Mark Adam Wiinikka , Matthew Curtis Ledbetter
- Applicant: Textron Innovations Inc.
- Applicant Address: US RI Providence
- Assignee: Textron Innovations Inc.
- Current Assignee: Textron Innovations Inc.
- Current Assignee Address: US RI Providence
- Agency: Slater Matsil, LLP
- Main IPC: B64C27/32
- IPC: B64C27/32

Abstract:
A rotorcraft having a rotor system including a yoke, a plurality of grip assemblies, each of which is hingedly attach a rotor blade to the yoke, a plurality of flap stops, each flap stop attached to a respective grip assembly, a channel bounded by an upper and lower retaining surfaces, and a droop ring slideably disposed in the channel of the droop limiting system. The droop ring has a body with an inner surface, an outer surface, and a first end surface between the inner surface and the outer surface. The droop ring further has a first wear element removably disposed at the first end surface and extending above the first end surface and spaces the first end surface apart from the channel. Each flap stop is arranged to contact the outer surface of the droop ring and limit a downward droop of the respective rotor blade.
Public/Granted literature
- US20200001991A1 Droop Ring with Removable Wear Elements Public/Granted day:2020-01-02
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