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Class Information
Number: 198/676
Name: Conveyors: power-driven > Conveyor section > Screw > Helical surface formation structure
Description: Apparatus involving structural aspects of a helical surface formation.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7419049 |
Archimedean conveyors and combustion engines |
Sep. 2, 2008 |
| 7255223 |
Mixture with a smooth throughput |
Aug. 14, 2007 |
| 7222725 |
Pin conveyor for pasty materials such as animal waste |
May. 29, 2007 |
| 7100760 |
Deicer mixing apparatus and method |
Sep. 5, 2006 |
| 7051865 |
Auger flight support |
May. 30, 2006 |
| 6994494 |
Device for producing bored piles |
Feb. 7, 2006 |
| 6971501 |
Screw conveyor for the transport of goods hanging from hanger supports |
Dec. 6, 2005 |
| 6860408 |
Auger apparatus for conveying ice |
Mar. 1, 2005 |
| 6651805 |
High-gradient high-pump-head screw conveyor device |
Nov. 25, 2003 |
| 6390283 |
Cast auger gating interface |
May. 21, 2002 |
| 6370856 |
Foreign object ejector for rotary conveyor equipped centering augers having crop lifters and receiving crop from wide pick-up |
Apr. 16, 2002 |
| 6361263 |
Apparatus and method of inventorying packages on a storage device |
Mar. 26, 2002 |
| 6279304 |
Crop pick-up having crop lifters incorporated in centering auger |
Aug. 28, 2001 |
| 6155705 |
Extruder screw with coatings of different hardnesses thereon |
Dec. 5, 2000 |
| 5939027 |
Process for discharging a reactor |
Aug. 17, 1999 |
| 5910243 |
Displacement device |
Jun. 8, 1999 |
| 5881649 |
Magnetic transfer system, power transmission mechanism of the magnetic transfer system, and rotational driving member used for the system |
Mar. 16, 1999 |
| 5863197 |
Solid flight conveying screw for furnace |
Jan. 26, 1999 |
| 5687832 |
Flexible bladed auger |
Nov. 18, 1997 |
| 5676827 |
Apparatus for discharge of sediment from a tank |
Oct. 14, 1997 |
| 5673618 |
Screw press flight with wear resistant surface |
Oct. 7, 1997 |
| 5662272 |
Powder coating product sprayer device |
Sep. 2, 1997 |
| 5651305 |
Food product finisher |
Jul. 29, 1997 |
| 5626296 |
Quick reacting air spreader apparatus |
May. 6, 1997 |
| 5529170 |
Feed screw for sedimentation or treatment systems |
Jun. 25, 1996 |
| 5503066 |
Replaceable rotor tine cap for bagging machine |
Apr. 2, 1996 |
| 5476550 |
Method and apparatus for extracting soluble and dispersible materials from products using a slotted scroll extractor |
Dec. 19, 1995 |
| 5396981 |
Flexible screw and transport apparatus comprising same |
Mar. 14, 1995 |
| 5361988 |
Vehicle mounted particulate material spreader |
Nov. 8, 1994 |
| 5351806 |
Flexible screw for conveyors |
Oct. 4, 1994 |
| 5337658 |
Conveying and compacting apparatus having a shaftless spiral in a casing with drainage openings |
Aug. 16, 1994 |
| 5303814 |
Flexible screw type conveyor system |
Apr. 19, 1994 |
| 5295573 |
Flexible screw and transport apparatus comprising same |
Mar. 22, 1994 |
| 5195631 |
Optimum screw |
Mar. 23, 1993 |
| 5186575 |
Planing device for planing down road surfaces |
Feb. 16, 1993 |
| 5117654 |
Ice conveyor system for refrigerator |
Jun. 2, 1992 |
| 5107980 |
High speed screw feeder device for shaped containers or bottles in glass or plastic material |
Apr. 28, 1992 |
| 5099985 |
Unitary screw conveyor apparatus |
Mar. 31, 1992 |
| 5092453 |
Helical conveyor |
Mar. 3, 1992 |
| 5085313 |
Seal assembly |
Feb. 4, 1992 |
| 5073082 |
Hydraulic screw pump |
Dec. 17, 1991 |
| 5054658 |
Mortar dispenser |
Oct. 8, 1991 |
| 5000658 |
Apparatus for pumping high consistency fiber suspension |
Mar. 19, 1991 |
| 4969348 |
Feed system for a redraw press |
Nov. 13, 1990 |
| 4953712 |
Grading rolls for agricultural, horticultural and other articles |
Sep. 4, 1990 |
| 4949836 |
Screw with wear resistant surface |
Aug. 21, 1990 |
| 4930968 |
Method and apparatus for emptying packages, especially bags |
Jun. 5, 1990 |
| 4852279 |
Digging implement or blade therefor |
Aug. 1, 1989 |
| 4842126 |
Auger flight section |
Jun. 27, 1989 |
| 4773354 |
Apparatus for uniformly dispensing a paste material |
Sep. 27, 1988 |
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