Retaining mechanisms for threaded bodies in reciprocating pumps
US8529230B1 · kind B1 · utility
36Cited by
3References
48Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 26, 2010 |
| Grant date | Sep 10, 2013 |
| Priority date | — |
| Expiry date | Jul 7, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16B39/10
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Novel retainers for a body threaded into a reciprocating pump used for pumping fluid into a well are provided for. They comprise one or more elastic members adapted to flex and allow the retainer to be interlocked with the pump and a member adapted to engage the threaded body and to limit loosening thereof. Preferably, the engagement member is biased into engagement with the threaded body, for example, by elastic, magnetic, or gravitational potential energy. The novel retainers include stops which limit loosening or tightening of the threaded body and pawls that limit loosening of the threaded body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.