Female coupler for a fluid circuit
US4549577A · kind A · utility
19Cited by
5References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 11, 1985 |
| Grant date | Oct 29, 1985 |
| Priority date | — |
| Expiry date | Feb 11, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/87965
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A female coupler for engagement with a male coupler which has a spring loaded check valve, the female coupler includes a main poppet valve biased to a normally closed position and movable by the check valve in the male coupler to a fully opened position, a piston responsive to fluid pressure in the female coupler to force the main poppet valve to an intermediate position and open the male coupler check valve, a flow check prevention valve for normally maintaining a predetermined pressure of the fluid acting on the piston, and a second poppet valve to relieve the fluid acting on the piston.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.