Sealed bushing joint for chain
US4729754A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 15, 1986 |
| Grant date | Mar 8, 1988 |
| Priority date | — |
| Expiry date | Oct 15, 2006 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16G13/06
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A chain link assembly comprises a pair of inner sidebar portions, each defining an aperture and having innermost and outermost surfaces. A hollow bushing is secured to the pair of inner sidebar portions. The bushing includes a central portion which extends between the inner sidebar portions and integral stud portions at each end of the central portion which project into each of the apertures of the inner sidebar portions and terminate at the outermost surfaces of the inner sidebar portions. A pair of seals encircle each of the stud portions, each seal lying between the innermost surface of the inner sidebar portion and the central portion of the bushing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.