Polymer spring
US8590869B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 21, 2010 |
| Grant date | Nov 26, 2013 |
| Priority date | — |
| Expiry date | Jul 2, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F1/3605
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A polymer spring has a hollow tubular polymer body, wherein the first end portion of the body, the second end portion of the body, and the mid-portion of the body together substantially maintain an annular cylindrical column structure throughout the length of the body from the first end portion of the body to the second end portion of the body, such that the mid-portion of the body has a substantial portion that is in direct alignment with the first end portion of the body and the second end portion of the body when the spring is compressed to eliminate or reduce the chances of the spring failing caused by the spring folding or buckling and to reduce material fatigue in the polymer spring associated with folding or buckling.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.