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U.S. Department of Energy
Office of Scientific and Technical Information

Non-reclosing pressure relief device for vacuum systems

Patent ·
OSTI ID:5256129

A non-reclosing overpressure protection device such as a rupture disc provides a non-reclosing opening upon forcible contact with a knife blade. A bellows, having an inlet capable of being sealably connected to a source of pressure (the vacuum system) and an outlet containing the rupture disc, transmits the pressure in the system to the disc. The bellows maintains the disc away from the knife when the pressure is below an overpressure amount, and carries the disc to a position when the pressure is above an overpressure amount where the disc is ruptured by the knife. 6 figures.

DOE Contract Number:
AC04-76DP00789
Assignee:
Sandia Corp., Albuquerque, NM ()
Patent Number(s):
A; US 5284177
Application Number:
PPN: US 7-611617
OSTI ID:
5256129
Country of Publication:
United States
Language:
English