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Class Information
Number: 100/148
Name: Presses > Concurrent pressing and conveying > Helix-type compressor > With valve or choke adjustment
Description: Apparatus in which there are means by which the size of the constricted passage may be changed by changing the position of the walls of the constriction relative to one another.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7347140 |
Screw press for separation of liquid from solid-liquid mixtures especially pulp suspensions |
Mar. 25, 2008 |
| 7152522 |
Screw press with radial gate valve and supported screw shaft |
Dec. 26, 2006 |
| 6779692 |
Apparatus and method for increasing density of finely divided particulate matter |
Aug. 24, 2004 |
| 6615710 |
Screw press apparatus |
Sep. 9, 2003 |
| 6520073 |
Moisture reduction press |
Feb. 18, 2003 |
| 6505550 |
Compaction methods and apparatus |
Jan. 14, 2003 |
| 6279471 |
Drilling fluid recovery defluidization system |
Aug. 28, 2001 |
| 6217710 |
Process for regulating a screw press |
Apr. 17, 2001 |
| 5996484 |
Drilling fluid recovery defluidization system |
Dec. 7, 1999 |
| 5715747 |
Device for treating a heterogeneous mixture, especially honey and wax |
Feb. 10, 1998 |
| 5713268 |
Worm extruder for dewatering suspensions |
Feb. 3, 1998 |
| 5685218 |
Method for treating oil-bearing material |
Nov. 11, 1997 |
| 5680812 |
Apparatus and method for the extraction of vegetable oils |
Oct. 28, 1997 |
| 5562029 |
Conveying and compacting apparatus having a shaftless spiral in a casing with drainage openings |
Oct. 8, 1996 |
| 5526740 |
Multi-screw press for dewatering waste materials |
Jun. 18, 1996 |
| 5515776 |
Worm press with tapered shaft core |
May. 14, 1996 |
| 5466108 |
Process and apparatus for feeding fragmented material into a container under pressure |
Nov. 14, 1995 |
| 5421251 |
Apparatus for compacting material |
Jun. 6, 1995 |
| 5406883 |
Dewatering press for compressibly dewaterable material |
Apr. 18, 1995 |
| 5390592 |
Dewatering press for compressibly dewaterable material |
Feb. 21, 1995 |
| 5337658 |
Conveying and compacting apparatus having a shaftless spiral in a casing with drainage openings |
Aug. 16, 1994 |
| 5211841 |
Device for pretreating plastic waste before recycling |
May. 18, 1993 |
| 5137489 |
Low pressure continuous feed screw press |
Aug. 11, 1992 |
| 5061366 |
Scraper filter system |
Oct. 29, 1991 |
| 5012731 |
Device for pressing heterogeneous mixtures with regulated pressing force for separating liquid and solid fractions thereof, in particular fruit juices |
May. 7, 1991 |
| 5009062 |
Baling apparatus |
Apr. 23, 1991 |
| 4997578 |
Method and apparatus for dewatering and squeezing material |
Mar. 5, 1991 |
| 4947743 |
Apparatus for feeding a mass of particulate or fibrous material |
Aug. 14, 1990 |
| 4897194 |
Liquid separating apparatus |
Jan. 30, 1990 |
| 4852817 |
Machine for breaking up food containers and for recovering food product therefrom |
Aug. 1, 1989 |
| 4779528 |
Floating shaftless helix screw press |
Oct. 25, 1988 |
| 4718337 |
Apparatus for the treatment of plant material |
Jan. 12, 1988 |
| 4709628 |
Screw press for dewatering sludge and fiber suspensions |
Dec. 1, 1987 |
| 4581992 |
Screw press for mechanically separating liquids from mixtures of liquids and solids |
Apr. 15, 1986 |
| 4576016 |
Ice making apparatus |
Mar. 18, 1986 |
| 4520724 |
Screw drier particularly for plastic materials |
Jun. 4, 1985 |
| 4499822 |
Continuous press |
Feb. 19, 1985 |
| 4498382 |
Screw press for grape crop |
Feb. 12, 1985 |
| RE31631 |
Apparatus for producing de-boned meat products |
Jul. 17, 1984 |
| 4412485 |
Press for expressing liquid from a mass |
Nov. 1, 1983 |
| 4401023 |
Worm press |
Aug. 30, 1983 |
| 4393983 |
Intermeshing screw-type refiner |
Jul. 19, 1983 |
| 4380496 |
Mechanical dewatering process utilizing a nonuniform screw conveyor |
Apr. 19, 1983 |
| 4373434 |
Apparatus for the expansion of oil bearing seeds |
Feb. 15, 1983 |
| 4363265 |
Adjustable pulp outlet for juice extractor |
Dec. 14, 1982 |
| 4347134 |
Slurry separator having reaction nozzle driven rotory blades wiping a conical filter |
Aug. 31, 1982 |
| 4287058 |
Apparatus for separating liquid-solid mixtures |
Sep. 1, 1981 |
| 4285271 |
Seal plate drive for use with apparatus for pressure feeding and pressure cooking a food product |
Aug. 25, 1981 |
| 4260488 |
Device for compacting and draining fluid sludges containing fibrous materials |
Apr. 7, 1981 |
| 4253390 |
System for extracting liquids from fruit and the like |
Mar. 3, 1981 |
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