Rupture disc with selectively positioned initial buckling
US4669626A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 20, 1983 |
| Grant date | Jun 2, 1987 |
| Priority date | — |
| Expiry date | Sep 20, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/1744
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A rupture disc system comprises a rupture disc including a dome portion and a flange portion interconnected by a transition region and a mounting mechanism for mounting the rupture disc by the flange portion thereof in a pressure relieving vent. The rupture disc includes a thickness reducing groove at least partially circumferentially surrounding the dome portion and located in the transition region thereof. Preferably, the rupture disc is of the reverse buckling type and the groove does not completely surround the dome portion so as to define a tab or hinge within that part of the transition region which is ungrooved or not as deeply grooved as a remainder of the transition region. In addition, the slope or radius of curvature may be increased in the region of the tab. The rupture disc also includes an indentation on the dome portion. The indentation is preferably greatest on the dome portion at a location spaced from the transition region and directly between the tab and a crown of the dome portion. In addition, the mounting mechanism includes a lower ring member having an arcuate projection which extends into the vent. Preferably, the arcuate projection is located so as to be re…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.