Vertically reciprocable gates for the control of a liquid media
US4832527A · kind A · utility
12Cited by
5References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 29, 1987 |
| Grant date | May 23, 1989 |
| Priority date | — |
| Expiry date | Sep 29, 2007 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02B7/28
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A vertically reciprocable gate assembly which includes a frame surrounding a port and a gate having a gate member connected by links to an actuating member which is slidably connected to the frame with the gate member between it and the frame. Unless the gate is closed, the gate member is held against the actuating member and out of sealing contact with the frame. When the gate is lowered, it engages a stop which establishes a predetermined position of the gate member relative to the port, further downward movement of the actuating member causes the links to thrust the gate member into its operative position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.