Hydrostatic drain plug
US5819328A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 21, 1994 |
| Grant date | Oct 13, 1998 |
| Priority date | — |
| Expiry date | Nov 21, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/085
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A hydrostatic drain plug/outlet assembly comprises a hollow body (1) with an inlet port and an outlet port for connection to a fluid conduit. A slidable valve member (6) is movable between a locked open position and a locked closed position via an intermediate position at which the valve member (6) is urged into sealing engagement with a sealing member (3) by a spring (21) which supports a hydrostatic pressure of predetermined magnitude beyond which excess hydrostatic pressure is relieved by the valve member to prevent fluid overflow in a vessel. The valve member is moved between the locked open position and the locked closed position by rotation of valve member (6).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.