Non-metallic drive chain
US6978886B2 · kind B2 · utility
5Cited by
7References
36Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 29, 2003 |
| Grant date | Dec 27, 2005 |
| Priority date | — |
| Expiry date | Jul 29, 2023 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16G13/07
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A drive chain is made up of links injection molded of fiber-reinforced nonmetallic material. The chain links feature pivot bearings molded integrally to the links, which take all loads due to drive tension and relieve the connecting pins of all shear stress. The links also have all features for attachment to driven components molded integrally. The moving structural parts are separated by nonmetallic bushings filled with solid lubricating additives to reduce friction and wear. The chain rollers may also incorporate metallic ball bearings to reduce friction drag on guide track.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.