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Title: Non-reclosing pressure relief device for vacuum systems

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.
Inventors:
 [1]
  1. (Livermore, CA)
Issue Date:
OSTI Identifier:
869146
Assignee:
Sandia Corporation (Albuquerque, NM) SNL
Patent Number(s):
US 5284177
Contract Number:
AC04-76DP00789
Research Org:
AT & T CORP
Country of Publication:
United States
Language:
English
Subject:
non-reclosing; pressure; relief; device; vacuum; systems; overpressure; protection; rupture; disc; provides; forcible; contact; knife; blade; bellows; inlet; capable; sealably; connected; source; outlet; containing; transmits; maintains; below; amount; carries; position; ruptured; vacuum systems; relief device; pressure relief; rupture disc; protection device; knife blade; /137/220/