Flat key washer
US6059486A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 3, 1998 |
| Grant date | May 9, 2000 |
| Priority date | — |
| Expiry date | Jun 3, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/7098
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A key washer for interlocking a pair of concentric parts is described. The key washer is comprised of a flat, metal ring having an outer circumferential edge and an inner circumferential edge. Two or more formations are formed in the inner circumferential edge and adapted to be received on a mating formation of an inner one of the concentric parts. The outer circumferential edge has a plurality of straight flat sections for mating engagement with a corresponding configured surface of an outer one of the concentric parts. The metal ring prevents rotation between the concentric parts. The washer is utilized in a preferred application for interlocking an aircraft turbine engine high pressure rotor assembly and a tie shaft nut.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.