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Class Information
Number: 976/DIG.141
Name: Nuclear technology > Emergency protection arrangements structally associated with the reactor (e.g., safety valves provided with pressure equalization devices) [g21c-9/00] *** (emergency cooling arrangements dig. 196) > Pressure suppression [g21c-9/00b] > By rupture discs or diaphragms [g21c-9/00b2]

Patents under this class:

Patent Number Title Of Patent Date Issued
4788999 Automatic servo-controlled valve with high-speed opening Dec. 6, 1988
4645641 Process and installation to secure a prestressed concrete pressure vessel surrounded by a reactor protection building against excessive pressure and to prevent the release of activity to the e Feb. 24, 1987
4495147 Heat-retarding closure system for pressure relief openings of partitions, in nuclear reactor buildings Jan. 22, 1985
4131509 Pressure relief device for a nuclear reactor containment building Dec. 26, 1978
4064003 Rupture disc Dec. 20, 1977

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