Pressure limiting valve
US4791950A · kind A · utility
11Cited by
2References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 14, 1987 |
| Grant date | Dec 20, 1988 |
| Priority date | — |
| Expiry date | Dec 14, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/2642
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A pressure limiting valve including a body having an inlet and an outlet coaxially arranged at opposite ends of the body. A discharge passage is disposed in the body between the inlet and outlet. A cylindrical valve element is spring biased to a position to prevent communication between the inlet or outlet and the discharge passage. The valve element includes areas at opposite ends with one area being larger than the other so that pressure in the inlet and outlet act on the valve in a direction opposite the spring bias so as to open the inlet and outlet to the discharge passage upon a predetermined increase in pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.