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Class Information
Number: 222/333
Name: Dispensing > With discharge assistant (e.g., impeller, pump, conveyer, movable trap chamber, etc.) > Motor operated
Description: Dispensers having a motor to operate same.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 4518105 |
Method of and device for dispensing viscous concentrates of variable viscosity in accurately metered quantities of variable volume |
May. 21, 1985 |
| 4516696 |
Automatic dispenser for a detergent |
May. 14, 1985 |
| 4509659 |
Portable liquid measuring and dispensing device |
Apr. 9, 1985 |
| 4507061 |
Check valve and pump receptor assembly |
Mar. 26, 1985 |
| 4474309 |
Stepping motor control procedure for achieving variable rate, quasi-continuous fluid infusion |
Oct. 2, 1984 |
| 4456149 |
Water dispensing system |
Jun. 26, 1984 |
| 4453895 |
Windscreen washer unit |
Jun. 12, 1984 |
| 4446988 |
Portion control dressing and food dispenser |
May. 8, 1984 |
| 4440324 |
Cartridge-type dispenser gun |
Apr. 3, 1984 |
| 4421251 |
Motorized apparatus for dispensing cake icing |
Dec. 20, 1983 |
| RE31445 |
Submerged pumping system |
Nov. 22, 1983 |
| 4399712 |
Semi-automatic electro-mechanical pipette with controlled tip remover |
Aug. 23, 1983 |
| 4393993 |
Spray gun |
Jul. 19, 1983 |
| 4378079 |
Apparatus for accurately dosing fluids of varying viscosity |
Mar. 29, 1983 |
| 4364718 |
Disposable pump for dispensing small metered amounts of liquid from a container and a control unit for operating said pump |
Dec. 21, 1982 |
| 4352444 |
Controllable volume dosing device |
Oct. 5, 1982 |
| 4335834 |
Hand held electric ejecting device |
Jun. 22, 1982 |
| 4324532 |
Cartridge pump |
Apr. 13, 1982 |
| 4322022 |
Quick release for helically-threaded drive unit |
Mar. 30, 1982 |
| 4306671 |
Portable motor driven dispenser |
Dec. 22, 1981 |
| 4284212 |
Pilot actuated diaphragm valve |
Aug. 18, 1981 |
| 4274558 |
Dispensing of fluent materials |
Jun. 23, 1981 |
| 4274409 |
Dispensing of fluent materials |
Jun. 23, 1981 |
| 4273260 |
Dispensing of fluent materials |
Jun. 16, 1981 |
| 4273269 |
Hand held electric caulking gun |
Jun. 16, 1981 |
| 4271989 |
Micro-metering system |
Jun. 9, 1981 |
| 4269329 |
Plant-watering device |
May. 26, 1981 |
| 4264021 |
Hand held electric caulking gun |
Apr. 28, 1981 |
| 4260076 |
Powered dispenser for caulking cartridge contents |
Apr. 7, 1981 |
| 4258866 |
Dispenser actuating chuck adapter |
Mar. 31, 1981 |
| 4258864 |
Toothpaste dispenser |
Mar. 31, 1981 |
| 4257540 |
Hand-held battery-powered grease gun |
Mar. 24, 1981 |
| 4235352 |
Water supply apparatus |
Nov. 25, 1980 |
| 4234104 |
Toothpaste dispenser having a slip clutch drive mechanism |
Nov. 18, 1980 |
| 4189071 |
Soup Dispenser |
Feb. 19, 1980 |
| 4187959 |
Propellantless aerosol dispensing system |
Feb. 12, 1980 |
| 4187961 |
Dye metering system |
Feb. 12, 1980 |
| 4186852 |
Apparatus for melting and extruding thermofusible material |
Feb. 5, 1980 |
| 4183469 |
Hand held seed sower |
Jan. 15, 1980 |
| 4180187 |
Automatic piston drive mechanism for use in caulking gun |
Dec. 25, 1979 |
| 4177941 |
Metering device |
Dec. 11, 1979 |
| 4176793 |
Electric clutch control |
Dec. 4, 1979 |
| 4176766 |
Soup dispenser |
Dec. 4, 1979 |
| 4174789 |
Soup dispenser |
Nov. 20, 1979 |
| 4174791 |
Liquid-gas pumping apparatus |
Nov. 20, 1979 |
| 4172669 |
Mixing and dispensing machine |
Oct. 30, 1979 |
| 4171072 |
Hand held electric caulking gun |
Oct. 16, 1979 |
| 4164244 |
Apparatus for dosing bulk goods |
Aug. 14, 1979 |
| 4162037 |
Automatic sprayer |
Jul. 24, 1979 |
| 4160525 |
Spray gun construction |
Jul. 10, 1979 |
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