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Class Information
Number: 222/410
Name: Dispensing > With discharge assistant (e.g., impeller, pump, conveyer, movable trap chamber, etc.) > Rotary
Description: Dispensers having a rotary discharge assistant.


Sub-classes under this class:

Class Number Class Name Patents
222/411 Central discharge 19
222/412 Helically arranged projections (e.g., screws) 86
222/414 Peripheral surface material contact 64


Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
7374069 Edible food product dispensing system and methods of using the same May. 20, 2008
7318537 Method and apparatus for controlling the speed and/or direction of movement of a screw discharger Jan. 15, 2008
7314342 Cement hopper attachment for skid steer loader Jan. 1, 2008
7311265 Hand-held spraying apparatus having a multi-compartment liquid-holding reservoir Dec. 25, 2007
7275664 Self aligning self engaging hopper drive Oct. 2, 2007
7140311 Vacuum pump for agricultural seeding equipment Nov. 28, 2006
7021504 Apparatus for dispensing free-flowing material Apr. 4, 2006
6955722 Method and apparatus for application of a material to a substrate Oct. 18, 2005
6877644 Device for dispensing flowable material components Apr. 12, 2005
6860410 Powder and grain feeder Mar. 1, 2005
6845735 Pet feeder Jan. 25, 2005
6568564 Soft tube dispenser apparatus May. 27, 2003
6527147 Apparatus and process for dispensing dunnage Mar. 4, 2003
6523726 Apparatus and method for controlled feeding of particulate material Feb. 25, 2003
6416261 Rotary plate feeder Jul. 9, 2002
6398046 Drum roller dispenser for dry particles, particularly polymeric erosion control agents Jun. 4, 2002
6375035 Material feeder, dispensing member and method Apr. 23, 2002
6257444 Precision dispensing apparatus and method Jul. 10, 2001
6214113 Gumming device Apr. 10, 2001
6116474 Metering valve and method for the metered delivery of pasty mediums Sep. 12, 2000
6109481 Powder atomizer Aug. 29, 2000
6062426 Ice storage/dispensing apparatus May. 16, 2000
6062439 Rotary valve with improved sealing means May. 16, 2000
6029853 Dispersing method, dispersing apparatus and dispersing system having dispersing apparatus Feb. 29, 2000
5964184 Continuous operating distribution hopper Oct. 12, 1999
5958136 Device for powdering a product Sep. 28, 1999
5931355 Disposable rotary microvalve Aug. 3, 1999
5927555 Pump support apparatus for a melter tank for thermoplastic material and mounting structure therefor Jul. 27, 1999
5857589 Method and apparatus for accurately dispensing liquids and solids Jan. 12, 1999
5837276 Apparatus for the delivery of elongate solid drug compositions Nov. 17, 1998
5829646 Ice dispenser and combination ice and beverage dispenser Nov. 3, 1998
5769276 Powder atomizer Jun. 23, 1998
5743639 Ingredient feeder with closely spaced enrobing chamber and blender assembly Apr. 28, 1998
5702183 Discharge apparatus having orbitally moving discharge ring Dec. 30, 1997
5687780 Method of feeding catalyst and apparatus for the same Nov. 18, 1997
5667099 Method and apparatus for powder distribution Sep. 16, 1997
5622467 Discharge means for a silo Apr. 22, 1997
5454524 Material feeding apparatus Oct. 3, 1995
5441176 Volumetric dry measure apparatus Aug. 15, 1995
5411331 Device for promoting gravity flow of non-free-flowing solids May. 2, 1995
5409147 Cantilevered rotary valve Apr. 25, 1995
5375747 Pulverulent material feeder apparatus Dec. 27, 1994
5360141 Device for metering powder, grained or micropearl dyeing materials Nov. 1, 1994
5353739 Automatic animal food feeding apparatus Oct. 11, 1994
5305912 Granular material flow divider Apr. 26, 1994
5287999 Drop spreader Feb. 22, 1994
5244129 Apparatus for filling a receptacle with a divided solid product Sep. 14, 1993
5215223 Squeezing and dispensing device Jun. 1, 1993
5201441 Rotary feeder with improved seal arrangement between the lateral rotor disk and the pertaining bearing cover Apr. 13, 1993
5145009 Apparatus for metering dry and/or pulverulent pourable material, especially dye powder Sep. 8, 1992

1 2 3


 
 
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