US PATENT SUBCLASS 429 / 72
HAVING SPECIFIED VENTING, FEEDING OR CIRCULATION STRUCTURE (OTHER THAN FEEDING OR FILLING FOR ACTIVATING DEFERRED ACTION-TYPE BATTERY)

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

72HAVING SPECIFIED VENTING, FEEDING OR CIRCULATION STRUCTURE (OTHER THAN FEEDING OR FILLING FOR ACTIVATING DEFERRED ACTION-TYPE BATTERY) {5}
73  DF  .~> Single filling opening and means to equalize fluid level in plural cells
74  DF  .~> Having means to control electrolyte level when liquid is added, other than a visual reference point {3}
80  DF  .~> Having (manual) electrolyte storage feeding a device
81  DF  .~> Having nonmovable means providing motion between electrolyte and electrodes, i.e., circulation
82  DF  .~> Venting structure {5}

DEFINITION

Classification: 429/72

(under the class definition) Apparatus having means for manipulating a fluid in a battery structure to (a) vent, (b) feed, or (c) circulate the same.

(1) Note. Since a filler opening of a battery is so conventional and will inherently function to allow feeding and venting, said filler opening is not considered proper for this and indented subclasses.

SEE OR SEARCH THIS CLASS, SUBCLASS:

110+, for deferred action-type battery wherein feeding and venting are common.

SEE OR SEARCH CLASS

137, Fluid Handling,

260+, for battery replenishment apparatus. 141, Fluent Material Handling, With Receiver or Receiver Coacting Means,

18, for filling devices useful in filling batteries.