US PATENT SUBCLASS 401 / 187
.~ By compression or suction of gas in reservoir

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.~ 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}
189  DF  .~.~> By one-way means for removing gas from reservoir

DEFINITION

Classification: 401/187

(under subclass 143) Implement wherein the force applying means operates to vary the density of gas (e.g., air) in the reservoir*.

(1) Note. A patent for an implement having means to permit adding or removing air to or from the reservoir by the mouth will be placed in this subclass.

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.