Seal assembly for track pin joint assembly
US8721213B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 30, 2011 |
| Grant date | May 13, 2014 |
| Priority date | — |
| Expiry date | Aug 24, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/32606
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A seal assembly can be incorporated into a track pin joint assembly including a pin defining a longitudinal axis, a first member and a second member both coaxial with the pin about the longitudinal axis. The first member is pivotable about the longitudinal axis with respect to the second member and includes a load ring engagement surface defining a seal cavity disposed in proximal relationship to the second member. A seal assembly including a seal ring and a load ring is disposed in the seal cavity and sealingly engages the first and second members. An axial segment of a seal ring engagement surface of the load ring extends over at least half the length, measured along the longitudinal axis, between a radial segment of the seal ring engagement surface and a radial segment of a first member engagement surface of the load ring. At least one of a load ring engagement surface of the first member and an axial segment of the first member engagement surface of the load ring includes a convex rounded portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.