ECP manifold valve inserts
US6422531B1 · kind B1 · utility
11Cited by
1References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 28, 2000 |
| Grant date | Jul 23, 2002 |
| Priority date | — |
| Expiry date | Jun 28, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/87225
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A valve insert comprises a bushing assembly, a piston assembly and a spring. Its design prevents non-longitudinal movement of the piston assembly as it is moved within the longitudinal bore of the bushing assembly. This virtually eliminates the bell clapper effect commonly suffered by many of the valve inserts currently used in the industry. The design of the valve insert also avoids the pressure imbalances inherent to the prior art valve inserts. The valve insert is designed to fit snugly and sealingly within a suitable borehole, such as the fill and cut-out boreholes of an ECP manifold assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.