US PATENT SUBCLASS 401 / 143
INCLUDING MEANS TO APPLY MATERIAL-MOVING FORCE

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

143INCLUDING MEANS TO APPLY MATERIAL-MOVING FORCE {10}
144  DF  .~> Including filling tube extensible beyond tool
145  DF  .~> Including means to flex diaphragm within rigid reservoir
146  DF  .~> In or at feeder {3}
151  DF  .~> Intercommunicable reservoirs or reservoir sections in series
152  DF  .~> Including means to collapse flexible wall {4}
170  DF  .~> By telescoping cylinder means in continuous communication
171  DF  .~> Piston-provided reservoir {2}
183  DF  .~> Manually engageable resilient wall or wall portion {2}
187  DF  .~> By compression or suction of gas in reservoir {2}
190  DF  .~> Including pressurized reservoir (e.g., Aersol)

DEFINITION

Classification: 401/143

(under the class definition) Implement comprising a resilient wall reservoir*, or including a reservoir or feeder* and means to urge coating material into the reservoir, or along the feeder toward the tool*.

(1) Note. The force-applying means must be other than, or in addition to, gravity or capillary flow.

(2) Note. The force-applying means may be a gaseous or gas-producing propellant within the reservoir; see subclass 190.

(3) Note. Subclasses 143+ will take a patent having guide means to permit adding or removing air by the operation of the user's mouth (e.g., subclasses 187+, for a patent wherein such means may be found disclosed as facilitating addition or removal of gas to or from the reservoir; and subclass 157, for a patent wherein a flexible wall is collapsed by such means). A mere air passage is not, otherwise, force-applying means for subclasses 143+.

(4) Note. A nonresilient flexible wall which is permanently collapsed by direct digital engagement does not constitute force-applying means for subclasses 143+. A patent including such structure will be placed in an appropriate subclass related to the type of tool claimed. However, a patent wherein a resilient wall is collapsed by additional means provided therefor will be placed in subclasses 156+, and if collapsed by direct manual engagement will be placed in subclasses 183+.

SEE OR SEARCH THIS CLASS, SUBCLASS: 40+, for an implement whose reservoir is subject to the action of material-moving force-applying means, which reservoir contains a liquid vehicle and receives dispersible or soluble material for interaction therewith, or which reservoir receives the product of such an interaction.

101, for an implement including a retractable tool and means for applying force on the material in the reservoir.

135, for an implement including a receiver for a sealed-cartridge reservoir and means to apply force on the material in the reservoir.

223, for an implement wherein the reservoir is filled solely by the action of capillary material contained therein.

SEE OR SEARCH CLASS

222, Dispensing,

251+, 576, 577, and 578+, for a dispenser for fluent material including a force-applying discharge assistant; and see the search notes thereto.