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Class Information
Number: 198/663
Name: Conveyors: power-driven > Conveyor section > Screw > Plural helical surface formations > Separate, parallel formations supporting same load
Description: Apparatus wherein the helical surface formations comprise laterally spaced members which form an underlying support for an article-type load, the load continuously contacting at least two of the members.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7255223 |
Mixture with a smooth throughput |
Aug. 14, 2007 |
| 7044289 |
Screw conveyor for the transport of flowable substances and/or lumps of material |
May. 16, 2006 |
| 7017732 |
Multiple extruder configuration |
Mar. 28, 2006 |
| 6991089 |
Cooling station for disk-shaped substrates |
Jan. 31, 2006 |
| 6976819 |
Tank having multiple screw-type transfer augers |
Dec. 20, 2005 |
| 6808354 |
Tank having multiple screw-type transfer augers |
Oct. 26, 2004 |
| 6543606 |
Spiral singulator |
Apr. 8, 2003 |
| 6446790 |
Link for sharp chain conveyor |
Sep. 10, 2002 |
| 6419080 |
Spiral singulator |
Jul. 16, 2002 |
| 6364091 |
Conveying device for forming and conveying groups of products |
Apr. 2, 2002 |
| 6357577 |
Conveyor arrangements with multiple shaftless screws |
Mar. 19, 2002 |
| 6298751 |
Drive transmission apparatus for twin-screw extruder |
Oct. 9, 2001 |
| 5816570 |
Apparatus for buffering the transport of documents |
Oct. 6, 1998 |
| 5806686 |
Sorting device and its use |
Sep. 15, 1998 |
| 5547182 |
Apparatus for feeding distorted documents |
Aug. 20, 1996 |
| 5472076 |
Device for changing the position of a lid |
Dec. 5, 1995 |
| 5429349 |
Apparatus for buffering transport of document using conical screw conveyers |
Jul. 4, 1995 |
| 5409206 |
Apparatus for buffering transport of documents |
Apr. 25, 1995 |
| 5350051 |
Agitator apparatus for cylindrical articles |
Sep. 27, 1994 |
| 5076416 |
Method and device for successively feeding flat products |
Dec. 31, 1991 |
| 4969348 |
Feed system for a redraw press |
Nov. 13, 1990 |
| 4953712 |
Grading rolls for agricultural, horticultural and other articles |
Sep. 4, 1990 |
| 4820375 |
Screw type rod feeding and placement mechanism |
Apr. 11, 1989 |
| 4804111 |
Mechanism for metering solid materials which flow in a manner similar to liquids |
Feb. 14, 1989 |
| 4760910 |
Aligning and feeding apparatus for elongated pieces |
Aug. 2, 1988 |
| 4625499 |
Device for loading products to a predetermined location |
Dec. 2, 1986 |
| 4535552 |
Spaghetti dryer |
Aug. 20, 1985 |
| 4512228 |
Automatic sausage slicing machine for salami and like products |
Apr. 23, 1985 |
| 4511026 |
Apparatus for the storage and mechanical transfer of stock or matrix capacitors |
Apr. 16, 1985 |
| 4484606 |
Silo bag filling machine |
Nov. 27, 1984 |
| 4430057 |
Calciner screw construction |
Feb. 7, 1984 |
| 4412567 |
Silo bag filling machine |
Nov. 1, 1983 |
| 4280538 |
Insulation packaging machine |
Jul. 28, 1981 |
| 4140214 |
Delivery device for a container of bulk material |
Feb. 20, 1979 |
| 4078653 |
Rotary piston conveyor with a minimum of two rotors |
Mar. 14, 1978 |
| 4077528 |
Treatment plant |
Mar. 7, 1978 |
| 4024920 |
Root crop harvester |
May. 24, 1977 |
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