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Class Information
Number: 198/670
Name: Conveyors: power-driven > Conveyor section > Screw > With means for controlling flow or to assist conveying
Description: Apparatus including means coacting with said helical surface formation and/or with the load to regulate or facilitate the passage of the load.

Patents under this class:
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Patent Number Title Of Patent Date Issued
8651267 Conveying screw apparatus for transporting loose material Feb. 18, 2014
8636138 Polymer finishing process Jan. 28, 2014
8556066 Bulk material leveling and volumetric measuring and feeding apparatus Oct. 15, 2013
8459443 Recirculation bin for drill tailings having deflector means, and a drill tailings handling apparatus Jun. 11, 2013
8418838 Instant powder conveyor device of a drinks preparing machine Apr. 16, 2013
8353395 Helical auger plug systems Jan. 15, 2013
8353394 Continuous constant-rate feeding system Jan. 15, 2013
7971702 Auger hopper support device Jul. 5, 2011
7954629 Method and device for transferring a transporting hanger for garments to a following conveyor Jun. 7, 2011
7857120 Avalanche preventative shield for sweep auger Dec. 28, 2010
7729832 Device for actuating an articulated mast Jun. 1, 2010
7681715 Method and apparatus for discharging material at spaced intervals Mar. 23, 2010
7461737 Safety guard for auger intake Dec. 9, 2008
7255223 Mixture with a smooth throughput Aug. 14, 2007
7137503 Auger brush Nov. 21, 2006
7100760 Deicer mixing apparatus and method Sep. 5, 2006
6763932 Particulate material handling systems Jul. 20, 2004
6722491 Feeder tube for bulk product Apr. 20, 2004
6685053 Apparatus for removal of ice from a storage bin Feb. 3, 2004
6540067 Ice transporting assembly, ice making and transporting system and method for transporting ice Apr. 1, 2003
6470737 Device for metering flowable products Oct. 29, 2002
6464388 Mixer incorporating imbalance Oct. 15, 2002
6325203 Method and apparatus for rapidly processing machine tool chips Dec. 4, 2001
6170667 Apparatus and method for preparation of liquid/solid slurries Jan. 9, 2001
6103110 Screening apparatus for sewage Aug. 15, 2000
5971227 Liquid dispensing system with improved sealing augering screw and method for dispensing Oct. 26, 1999
5875882 Auger drive and method of driving an auger Mar. 2, 1999
5819983 Liquid dispensing system with sealing augering screw and method for dispensing Oct. 13, 1998
5798038 Device for removing deposited material from a liquid in a flume Aug. 25, 1998
5788055 Auger with sealed hopper joint Aug. 4, 1998
5722529 Device for uniform draw-down, homogenization and continuous mixing of bulk solids from silos and stockpiles Mar. 3, 1998
5615989 Converging member and related apparatus for conveying granular material Apr. 1, 1997
5584640 Grain tank unloading auger drive means Dec. 17, 1996
5573660 Screw conveyor Nov. 12, 1996
5564555 Screw conveyor for transporting powder with automatic air washing device Oct. 15, 1996
5553534 Method and apparatus for the evacuation, conveyance, compacting and discharge of bulk materials, especially shavings and swarf Sep. 10, 1996
5476550 Method and apparatus for extracting soluble and dispersible materials from products using a slotted scroll extractor Dec. 19, 1995
5368153 Transportation device having a driven shaftless spiral freely fitted in a casing and resting thereon Nov. 29, 1994
5351805 Method and apparatus for unloading bulk materials Oct. 4, 1994
5269402 Apparatus for conveying Dec. 14, 1993
5221049 Manure spreader auger indicator Jun. 22, 1993
5217108 Auger portioning device for a coffee bean grinder Jun. 8, 1993
5191966 Apparatus and method for unloading bulk materials Mar. 9, 1993
5154275 Apparatus for conveying Oct. 13, 1992
5154326 Vibrator and screw combined conveying device used in weighing of powder Oct. 13, 1992
5143202 Screw conveyor Sep. 1, 1992
5117654 Ice conveyor system for refrigerator Jun. 2, 1992
5099983 Portable auger system apparatus and method for depositing gypsum into an irrigation ditch Mar. 31, 1992
5090627 Seal for manure spreader floating auger Feb. 25, 1992
5000307 Transportation device Mar. 19, 1991

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