Pressure-relief device
US4809729A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 21, 1988 |
| Grant date | Mar 7, 1989 |
| Priority date | — |
| Expiry date | Jan 21, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/1752
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An improvement is provided in a safety pressure relief device adapted to be installed between a standard base flange and a standard hold-down flange including a first crowned rupture member, a second crowned rupture member, a resilient sealing membrane, the resilient sealing membrane being positioned between the first crowned member and the second crowned member, the first crowned member being positioned with respect to the second crowned member with its convex side away from the second crowned member, the convex side of the second crowned member being away from the first crowned member, both the first and second crowned members being perforate to allow pressure fluids to pass therethrough to be exerted against the sealing member, and means securing the first crowned rupture member and the second crowned rupture member to the resilient sealing member. The improvement comprises (a) the resilient sealing membrane forming a plane of symmetry between the first and second crowned rupture members; (b) each of the first and second crowned rupture members being provided with a flat outer lip; (c) an upper and a lower upstanding collar, each collar terminating in an outer lateral flat flang…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.