Tensioner
US10683914B2 · kind B2 · utility
0Cited by
10References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 14, 2018 |
| Grant date | Jun 16, 2020 |
| Priority date | — |
| Expiry date | Apr 9, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2007/0893
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A tensioner comprising a base, a pivot arm pivotally engaged with the base, a pulley journalled to the pivot arm, a torsion spring urging the pivot arm, the torsion spring loaded in the unwinding direction, the torsion spring engaged with a damping shoe, the damping shoe frictionally engaging the base, and the damping shoe having a damping shoe portion comprising PTFE mixed within a plastic matrix material, the PTFE comprising between 2% and 4% of the plastic matrix material by weight.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.