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Browse by Category: Main > Packaging & Containers
Class Information
Number: 222/412
Name: Dispensing > With discharge assistant (e.g., impeller, pump, conveyer, movable trap chamber, etc.) > Rotary > Helically arranged projections (e.g., screws)
Description: Dispensers having a discharge assistant with helically arranged projections, either interrupted or continuous, e.g., screws.










Sub-classes under this class:

Class Number Class Name Patents
222/413 Screw with terminal outlet only 299


Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8594537 Powder carrier screw, development device and image forming device using the powder carrier screw Nov. 26, 2013
8556134 Cartridge-type single-screw pump and dye-meter equipped with such pump Oct. 15, 2013
8534508 Storage dispenser apparatus for aids, consumables and utensils Sep. 17, 2013
8523014 Precision measurement dispenser Sep. 3, 2013
8464907 Level sensors for metering system container Jun. 18, 2013
8297478 Powder feed cylinder assemblies and powder feeders Oct. 30, 2012
8281959 Dosage-dispensing device for powders and pastes Oct. 9, 2012
8235258 Systems for the control and use of fluids and particles Aug. 7, 2012
8100301 Sandbag filling apparatus Jan. 24, 2012
8025082 Powder dispenser modules and powder dispensing methods Sep. 27, 2011
7997355 Apparatus for injecting impactors into a fluid stream using a screw extruder Aug. 16, 2011
7984835 Powder dosing device Jul. 26, 2011
7934622 System and method for dispensing dehydrated culture media powder May. 3, 2011
7836922 Powder dispenser modules and powder dispensing methods Nov. 23, 2010
7748575 Screw type material feeding apparatus Jul. 6, 2010
7712233 Particulate material spreading apparatus May. 11, 2010
7681408 Automated ice vending machine and method of vending ice Mar. 23, 2010
7552848 Automatic dosing device with motor overrunning absorbing means Jun. 30, 2009
7367263 Fountain May. 6, 2008
7318537 Method and apparatus for controlling the speed and/or direction of movement of a screw discharger Jan. 15, 2008
6932245 Dispensing canister Aug. 23, 2005
6786366 Metering device for dry bulk material Sep. 7, 2004
6712237 Simulated frozen beverage composition and method of manufacture thereof Mar. 30, 2004
RE37911 Fluent material container and dispenser Nov. 26, 2002
6454143 Apparatus and method for dispensing particles Sep. 24, 2002
6431810 Silo reclaimer Aug. 13, 2002
6336573 Hopper, or bin, screw feeder construction controlling discharge velocity profile Jan. 8, 2002
6220486 Powder paint feeder for powder coating Apr. 24, 2001
6206249 Fluent material container and dispenser Mar. 27, 2001
6109478 Conveying of materials Aug. 29, 2000
6109476 Ice dispensing system Aug. 29, 2000
6073818 Apparatus for controlled delivery of powdered solid materials Jun. 13, 2000
6071187 Device and method for separating foreign objects from a mass of coins Jun. 6, 2000
6039220 Low profile ice dispenser Mar. 21, 2000
5996855 Cross-feed auger and method Dec. 7, 1999
5961002 Receival hopper Oct. 5, 1999
5931355 Disposable rotary microvalve Aug. 3, 1999
5871081 Concentric auger feeder Feb. 16, 1999
5662272 Powder coating product sprayer device Sep. 2, 1997
5655690 Apparatus for dispensing product through a vertical dispenser tube Aug. 12, 1997
5639200 Sweep drive unit Jun. 17, 1997
5617975 Chip feed system Apr. 8, 1997
5585119 Device for preparation of expanded thermoplastic microspheres Dec. 17, 1996
5575408 Image developer material agitation system with non-binding mixing coil agitator Nov. 19, 1996
5447404 Silo discharge arrangement Sep. 5, 1995
5400836 Filling flowable products into receptacles Mar. 28, 1995
5386939 Apparatus and method for distribution of seasonings and the like for the uniform distribution of seasonings or like granular/powdered materials Feb. 7, 1995
5385086 Electrostatic assisted dry ingredient deposition apparatus Jan. 31, 1995
5356054 Wagon with cutting, mixing and dispensing functions for fodder and grass or straw materials stored in silos Oct. 18, 1994
5281071 Portable ice storage and dispensing system Jan. 25, 1994

1 2 3










 
 
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