Hollow elastomeric spring
US4781365A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 2, 1987 |
| Grant date | Nov 1, 1988 |
| Priority date | — |
| Expiry date | Feb 2, 2007 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F1/40
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A spring suitable for use in a vehicle suspension comprises a pair of rigid end members and bonded therebetween a body of elastomeric material which is of solid cross-section over a part of the spring in the vicinity of a first end member and hollow in the vicinity of a second end member for between 10 and 80% of the length of the body. The body is of progressively increasing external cross-sectional dimension over a first part of the length of the body as considered in a direction away from the first end member and of progressively decreasing external cross-section over a second part of the length of the spring extending to the second end member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.