Cartridge seal assemblies and associated methods
US8684362B2 · kind B2 · utility
32Cited by
18References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 21, 2010 |
| Grant date | Apr 1, 2014 |
| Priority date | — |
| Expiry date | Nov 29, 2030 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16J15/3232
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The present cartridge seal assemblies pertain to rotary lip-type seals. In certain embodiments, a sealing member is constructed of a relatively hard material that increases the lifespan of the sealing member. The sealing member is energized with a canted-coil spring, which in some embodiments includes an adjustable spring force. The present embodiments enable control of sealing force to achieve an appropriate sealing force between the sealing member and the shaft based on factors such as temperature, pressure, rotary speed, properties of fluid media, etc. to achieve longer seal life.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.