Seal member
US8403332B2 · kind B2 · utility
3Cited by
19References
19Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Dec 28, 2009 |
| Grant date | Mar 26, 2013 |
| Priority date | — |
| Expiry date | Jul 24, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04C13/008
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The seal member includes a tetrafluoroethylene-propylene copolymer (FEPM) and carbon nanofibers. The seal member has a number of cycles to fracture of 10 or more when subjected to a tension fatigue test at a temperature of 150° C., a maximum tensile stress of 2 N/mm, and a frequency of 1 Hz. The seal member exhibits excellent heat resistance and abrasion resistance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.