US PATENT SUBCLASS 422 / 118
.~ Preventing opening of closure of pressurized apparatus at unsafe pressure

Current as of: June, 1999
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422 /   HD   CHEMICAL APPARATUS AND PROCESS DISINFECTING, DEODORIZING, PRESERVING, OR STERILIZING

117  DF  WITH SAFETY FEATURE {1}
118.~ Preventing opening of closure of pressurized apparatus at unsafe pressure

DEFINITION

Classification: 422/118

Preventing opening of closure of pressurized apparatus at unsafe pressure:

(under subclass 117) Apparatus wherein the safety feature prevents the opening of a movable or removable closure of the apparatus when the apparatus is at such pressure that the opening of the closure is an unsafe act.