Two-piece expandable thrust washer and machine using same
US7780241B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 12, 2007 |
| Grant date | Aug 24, 2010 |
| Priority date | — |
| Expiry date | Mar 12, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/32606
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A machine includes a clevis joint connecting a first frame structure to a second frame structure. The clevis joint includes two plates configured to receive a rotatable element of the first frame structure. An expandable thrust washer is positioned on at least one side of the rotatable element. A pin extends through the two plates, the rotatable element, and the expandable thrust washer. The expandable thrust washer has a variably selected length and includes an outer ring configured to receive at least a portion of an inner ring. Expanding the expandable thrust washer to an expanded length reduces clearance along an axis of the clevis joint.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.