| |
 |
|
Class Information
Number: 198/662
Name: Conveyors: power-driven > Conveyor section > Screw > Plural helical surface formations
Description: Apparatus wherein there are a plurality of helical surface formations.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7419048 |
Transverse conveying screw for a harvesting front attachment |
Sep. 2, 2008 |
| 7255223 |
Mixture with a smooth throughput |
Aug. 14, 2007 |
| 7017732 |
Multiple extruder configuration |
Mar. 28, 2006 |
| 6991089 |
Cooling station for disk-shaped substrates |
Jan. 31, 2006 |
| 6193053 |
Concentric auger feeder |
Feb. 27, 2001 |
| 5910243 |
Displacement device |
Jun. 8, 1999 |
| 5871081 |
Concentric auger feeder |
Feb. 16, 1999 |
| 5676827 |
Apparatus for discharge of sediment from a tank |
Oct. 14, 1997 |
| 5603435 |
Repainting gun |
Feb. 18, 1997 |
| 5584641 |
Stone metering system for railroad track maintenance vehicle |
Dec. 17, 1996 |
| 5531555 |
Bale collector with rollers and baler suitable thereof |
Jul. 2, 1996 |
| 5529170 |
Feed screw for sedimentation or treatment systems |
Jun. 25, 1996 |
| 5524796 |
Screw feeder with multiple concentric flights |
Jun. 11, 1996 |
| 5443588 |
Cutter-mixer-feeder wagon with centrally improved screw profile |
Aug. 22, 1995 |
| 5367860 |
Agricultural feed bagging machine having an improved auger conveyor mounted thereon |
Nov. 29, 1994 |
| 5351805 |
Method and apparatus for unloading bulk materials |
Oct. 4, 1994 |
| 4995531 |
Ring dispenser |
Feb. 26, 1991 |
| 4872546 |
Screw conveyor device |
Oct. 10, 1989 |
| 4836460 |
Screw mill |
Jun. 6, 1989 |
| 4730554 |
Appliance for the alignment of onions or other vegetable bulbs |
Mar. 15, 1988 |
| 4726715 |
Screw powder feeders |
Feb. 23, 1988 |
| 4717014 |
Screw conveyor |
Jan. 5, 1988 |
| 4712922 |
Material mixing apparatus |
Dec. 15, 1987 |
| 4617177 |
System for continuous solid/liquid extraction |
Oct. 14, 1986 |
| 4605047 |
Filling device for bulk material, especially liquids |
Aug. 12, 1986 |
| 4597672 |
Center discharge mixer for fluent and nonfluent material |
Jul. 1, 1986 |
| 4530432 |
Screw conveyer |
Jul. 23, 1985 |
| 4400175 |
Process and an apparatus for the crystallization of melts with a simultaneous crushing operation |
Aug. 23, 1983 |
| 4399906 |
Temperature expansive screw conveyor |
Aug. 23, 1983 |
| 4275808 |
Interchangeable volumetric screw feeder |
Jun. 30, 1981 |
| 4234074 |
Apparatus for separating metal cuttings from liquid coolants |
Nov. 18, 1980 |
| 4194844 |
Multiple powder conveyor system |
Mar. 25, 1980 |
| 4089300 |
Auger assembly for use in feed dispensing hoppers |
May. 16, 1978 |
| 4037801 |
Grinding apparatus |
Jul. 26, 1977 |
|
|
|
