US PATENT SUBCLASS 429 / 85
.~.~.~ Weight actuated valve type

Current as of: June, 1999
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429 /   HD   CHEMISTRY: ELECTRICAL CURRENT PRODUCING APPARATUS, PRODUCT, AND PROCESS

72  DF  HAVING SPECIFIED VENTING, FEEDING OR CIRCULATION STRUCTURE (OTHER THAN FEEDING OR FILLING FOR ACTIVATING DEFERRED ACTION-TYPE BATTERY) {5}
82  DF  .~ Venting structure {5}
84  DF  .~.~ Nonspill fluent electrolyte type other than gas diffusive type {1}
85.~.~.~ Weight actuated valve type

DEFINITION

Classification: 429/85

(under subclass 84) Apparatus comprising a weight means functioning as a part of a valve means to render the apparatus operative.