Sealing arrangement for hinges of track chains
US5374115A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 29, 1993 |
| Grant date | Dec 20, 1994 |
| Priority date | — |
| Expiry date | Apr 29, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62D55/0887
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Sealing arrangement including an elongated bolt formed with a unilaterally open bore, a bushing coaxial with the bolt and spaced radially outwardly therefrom to form an annular passage between the bolt and bushing, the bushing being integrally provided with opposite support end surfaces, a pair of outer chain link mounted on the bolt and the bushing and forming respective opposite spacers with the respective support surfaces of the bushing, each of the spacers being provided with respective lubricating channels formed in the bushing and communicating with the annular channel for conveying a lubricant from the channel into the spacers and a pair of annular seals each received in the respective spacer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.