Manufacturing method for canted-coil spring with turn angle and seal
US4961253A · kind A · utility
Assignees
Inventor
Key dates
| Filing date | Dec 13, 1988 |
| Grant date | Oct 9, 1990 |
| Priority date | — |
| Expiry date | Dec 13, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49609
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A garter-type axially resilient coil spring includes a plurality of coils canted along a centerline thereof with each coil having a trailing portion and a leading portion. The disposition of the trailing portion is defined by a back angle between the trailing portion and a line normal to the centerline and the disposition of the leading portion is defined by a front angle between the leading portion and a normal line. Specific resilient performance, or load-characteristics, of the springs are obtained by controlling a turn angle of the coil spring. At selected turn angles, springs exhibit a resilient working area bounded by steep load-deflection characteristics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.