Hydraulic or pneumatic safety device for fluid handling apparatus
US6568554B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 19, 2001 |
| Grant date | May 27, 2003 |
| Priority date | — |
| Expiry date | Jul 29, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16J13/18
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A pressure vessel in accordance with the present invention comprises a cover, movable between an open position and a closed position, and a clamp for releasably clamping the cover in its closed position. The clamp includes a handle for manually operating the clamp. The handle is movable between a first position, in which the clamp releasably holds the cover in its closed position, and a second position, in which the cover is free to be moved to its open position. The pressure vessel further comprises locking means, including a latch pin for releasably locking the handle in its first position upon actuation of the latch pin, and actuating means, including a flexible diaphragm which is responsive to an increase in pressure within the pressure vessel, for actuating the latch pin when the pressure within the vessel has reached a predetermined level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.