US PATENT SUBCLASS 401 / 188 A
.~.~.~ Pens

Current as of: June, 1999
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401 /   HD   COATING IMPLEMENTS WITH MATERIAL SUPPLY

143  DF  INCLUDING MEANS TO APPLY MATERIAL-MOVING FORCE {10}
187  DF  .~ By compression or suction of gas in reservoir {2}
188 R  DF  .~.~ By one-way means for adding gas to reservoir (e.g., pump) {1}
188 A.~.~.~ Pens

Unofficial Alpha Subclasses: R A

DEFINITION

Classification: 401/188

(under subclass 187) Implement wherein the force-applying means comprises a device for irreversibly introducing gas into the supply chamber to provide super atmospheric pressure therein.

(1) Note. The gas may be introduced by a pump, or from a remote source of compressed gas, through a valve which prevents reverse flow of the gas from the reservoir.

SEE OR SEARCH THIS CLASS, SUBCLASS:

183+, for an implement including a reservoir with a resilient wall portion on which force is applied by direct digital engagement with the container wall to deform the wall and compress gas in the reservoir, which implement may include

one-way means for adding gas to the reservoir.