Wear resistant chain joint seal
US5269729A · kind A · utility
Inventors
Key dates
| Filing date | Sep 11, 1992 |
| Grant date | Dec 14, 1993 |
| Priority date | — |
| Expiry date | Sep 11, 2012 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16G13/06
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The invention provides sealing members for a chain. A pair of sealing members is provided for each end of a bushing. The sealing members respectively surround the ends of the bushing and are housed between inner sidebar portions and the outer sidebar portions of the chain. Each of the sealing members includes a collar which is pressed onto one of the ends of the bushing and which is positioned in closely spaced relation to one of the inner sidebars. Each collar has a circumferential flange or outer and inner collar portions which extend toward and engage one of the outer sidebars. Each collar defines an annular groove surrounding the bushing. Each sealing member further includes a resilient sealing ring housed in each annular groove. Each resilient sealing ring surrounds the bushing and engages in a sealing relation with the outer sidebar engaged by the collar in which it is housed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.