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Class Information
Number: 198/625
Name: Conveyors: power-driven > Conveyor section > Load simultaneously engaged between and moved by a plurality of driven conveyor members > Rotary members > Screw type
Description: Apparatus wherein the rotating sections each have a load-engaging portion which is in the form of a helical surface.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7255223 |
Mixture with a smooth throughput |
Aug. 14, 2007 |
| 7100760 |
Deicer mixing apparatus and method |
Sep. 5, 2006 |
| 6991089 |
Cooling station for disk-shaped substrates |
Jan. 31, 2006 |
| 6763932 |
Particulate material handling systems |
Jul. 20, 2004 |
| 6698578 |
Granular material conveyor |
Mar. 2, 2004 |
| 6561342 |
Granular material conveyor |
May. 13, 2003 |
| 6357577 |
Conveyor arrangements with multiple shaftless screws |
Mar. 19, 2002 |
| 6298751 |
Drive transmission apparatus for twin-screw extruder |
Oct. 9, 2001 |
| 6213185 |
Feeder for outserts and other articles |
Apr. 10, 2001 |
| 6062373 |
Method and apparatus for discharging a food material |
May. 16, 2000 |
| 5823738 |
Method and unit for forming stacks of articles |
Oct. 20, 1998 |
| 5823123 |
Transporting a particulate material to a discharge opening |
Oct. 20, 1998 |
| 5788050 |
Adjustable can end counting apparatus |
Aug. 4, 1998 |
| 5622248 |
Adjustable container feeding system for printing presses |
Apr. 22, 1997 |
| 5480135 |
Sheet collating or storage device |
Jan. 2, 1996 |
| 5472076 |
Device for changing the position of a lid |
Dec. 5, 1995 |
| 5407057 |
Super infeed system |
Apr. 18, 1995 |
| 5385074 |
Apparatus and method for cutting helically shaped potato pieces |
Jan. 31, 1995 |
| 5350051 |
Agitator apparatus for cylindrical articles |
Sep. 27, 1994 |
| 5310043 |
Feed apparatus with two feedscrews |
May. 10, 1994 |
| 5273149 |
Reverse vending machine with rotary-bristle-drive scanning station |
Dec. 28, 1993 |
| 5236300 |
Stacking and forwarding apparatus |
Aug. 17, 1993 |
| 5122263 |
Continuously and automatically functioning device for the drainage of sludge, especially of sewage sludge |
Jun. 16, 1992 |
| 5107978 |
Article distributing apparatus |
Apr. 28, 1992 |
| 5058725 |
Method and device for successively conveying flat-shaped items |
Oct. 22, 1991 |
| 5050720 |
Interchangeable feedscrew system |
Sep. 24, 1991 |
| 4969348 |
Feed system for a redraw press |
Nov. 13, 1990 |
| 4947979 |
Transfer apparatus |
Aug. 14, 1990 |
| 4944647 |
Bottle cutting and emptying machine |
Jul. 31, 1990 |
| 4875309 |
Disc cleaner |
Oct. 24, 1989 |
| 4872939 |
Apparatus for assembling lined packaging tray |
Oct. 10, 1989 |
| 4865158 |
Vertical bale elevator |
Sep. 12, 1989 |
| 4784557 |
Cup or cover stacker of a cup filling apparatus for dairy products |
Nov. 15, 1988 |
| 4690267 |
Charging-and-conveying means |
Sep. 1, 1987 |
| 4621971 |
Means for rotating tree trunks |
Nov. 11, 1986 |
| 4605047 |
Filling device for bulk material, especially liquids |
Aug. 12, 1986 |
| 4590833 |
Automatic feed for food-slicing machine |
May. 27, 1986 |
| 4567919 |
Container filling machine and process |
Feb. 4, 1986 |
| 4550655 |
Apparatus for making wafer blocks |
Nov. 5, 1985 |
| 4547114 |
Positive control stacker |
Oct. 15, 1985 |
| 4535552 |
Spaghetti dryer |
Aug. 20, 1985 |
| 4527438 |
Automatic feed system for sampling apparatus |
Jul. 9, 1985 |
| 4526128 |
High-speed indexing feed screw conveyer |
Jul. 2, 1985 |
| 4512228 |
Automatic sausage slicing machine for salami and like products |
Apr. 23, 1985 |
| 4491167 |
Device for the transport of bar-shaped workpieces, particularly sewing machine needle blanks |
Jan. 1, 1985 |
| 4438840 |
Apparatus for selecting closures |
Mar. 27, 1984 |
| 4394900 |
Central system elevator |
Jul. 26, 1983 |
| 4361082 |
Apparatus for manufacturing waffle blocks |
Nov. 30, 1982 |
| 4301912 |
Divider screws |
Nov. 24, 1981 |
| 4275808 |
Interchangeable volumetric screw feeder |
Jun. 30, 1981 |
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