Latch for a ball and sleeve plunger
US9957784B1 · kind B1 · utility
1Cited by
2References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 6, 2017 |
| Grant date | May 1, 2018 |
| Priority date | — |
| Expiry date | Jan 6, 2037 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B2200/06
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An improved latch structure for a two piece ball and sleeve bypass plunger comprises a single retaining ring installed in a groove formed in the inside diameter of the sleeve portion of the bypass plunger. The cross section profiles of the groove and the associated retaining ring are smaller in the radial direction. The depth of the groove in the sleeve is substantially reduced to provide increased wall thickness and robustness of the sleeve along the diameter of the sleeve, thereby extending the useful life of the bypass plunger.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.