Inline type check valve
US5092361A · kind A · utility
19Cited by
7References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 5, 1990 |
| Grant date | Mar 3, 1992 |
| Priority date | — |
| Expiry date | Mar 5, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7938
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An inline type check valve having a tubular body, a mushroom or umbrella-shaped piston axially, movably mounted in the tubular body, a coil spring disposed behind the piston in the body, and a hollow disk axially removably fixed to the body. Both the body and the disk made from a synthetic resin reinforced with fibers and resiliently hooked in each other. The piston has its periphery provided with a plurality of grooves to increase the cross-sectional area for fluid flow through the valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.