Apparatus for producing variable-rate spring
US4493631A · kind A · utility
3Cited by
5References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 15, 1983 |
| Grant date | Jan 15, 1985 |
| Priority date | — |
| Expiry date | Sep 15, 2003 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F2226/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An elastomeric spring is formed by extruding a rubbery material into a reinforcing sleeve in a mold during relative motion between the mold and nozzle, and thereafter vulcanizing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.