Subaqueous sequence valve mechanism
US4185652A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 31, 1977 |
| Grant date | Jan 29, 1980 |
| Priority date | — |
| Expiry date | Oct 31, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/87096
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A subaqueous sequence valve mechanism includes one or more main valves each adapted to be disposed in the water below the surface thereof. A first expansible chamber hydraulic actuator on the main valve operates that valve and also operates a second expansible chamber device against a spring. A hydraulic pressure line or lead from a controlled source above the surface is joined to and controls the submerged actuator. The second expansible chamber is connected in sequence through a throttle valve and a pressure relief valve to one side of a movable barrier in a hydraulic accumulator. On the other side of the movable barrier the accumulator is open to the water. There is also a return, one way flow valve shunting the pressure relief valve. The accumulator is hydraulically protected by a spring loaded check valve discharging into the water.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.