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Class Information
Number: 198/661
Name: Conveyors: power-driven > Conveyor section > Screw > Having axially varying capacity
Description: Apparatus wherein the conveyor section comprises one or more helical surface formations and which, by virtue of a changing pitch, diameter (overall or core), number of threads, etc., has a capacity which varies along its length.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6540067 |
Ice transporting assembly, ice making and transporting system and method for transporting ice |
Apr. 1, 2003 |
| 6336573 |
Hopper, or bin, screw feeder construction controlling discharge velocity profile |
Jan. 8, 2002 |
| 6186373 |
Hopper, or bin, screw feeder construction controlling discharge velocity profile |
Feb. 13, 2001 |
| 6000995 |
Unit for the dosage of grained, pourable materials, in particular blasting abrasives |
Dec. 14, 1999 |
| 5975279 |
Device for individualizing and feeding carriers to a hanging conveyor system |
Nov. 2, 1999 |
| 5939027 |
Process for discharging a reactor |
Aug. 17, 1999 |
| 5871081 |
Concentric auger feeder |
Feb. 16, 1999 |
| 5865592 |
Stone metering system for railroad track maintenance vehicle |
Feb. 2, 1999 |
| 5584641 |
Stone metering system for railroad track maintenance vehicle |
Dec. 17, 1996 |
| 5558203 |
Transporting device |
Sep. 24, 1996 |
| 5443352 |
Combine grain tank discharge system |
Aug. 22, 1995 |
| 5351805 |
Method and apparatus for unloading bulk materials |
Oct. 4, 1994 |
| 5183147 |
Chemical handling system |
Feb. 2, 1993 |
| 5122263 |
Continuously and automatically functioning device for the drainage of sludge, especially of sewage sludge |
Jun. 16, 1992 |
| 5117654 |
Ice conveyor system for refrigerator |
Jun. 2, 1992 |
| 5101961 |
Feeding screw |
Apr. 7, 1992 |
| 5099983 |
Portable auger system apparatus and method for depositing gypsum into an irrigation ditch |
Mar. 31, 1992 |
| 5052874 |
Compacting screw feeder |
Oct. 1, 1991 |
| 4904285 |
Deaerator for particulates |
Feb. 27, 1990 |
| 4801085 |
Dual auger manure spreader |
Jan. 31, 1989 |
| 4726715 |
Screw powder feeders |
Feb. 23, 1988 |
| 4408947 |
Conveyor arrangement for a combine harvester |
Oct. 11, 1983 |
| 4405239 |
Energy efficient extruder screw |
Sep. 20, 1983 |
| 4391561 |
Solids pumping apparatus |
Jul. 5, 1983 |
| 4386695 |
Sweep auger construction for a bottom unloading mechanism |
Jun. 7, 1983 |
| 4379106 |
Method of expanding heat expandable thermoplastic elements with steam and a horizontal expander with a feed near the bottom for expanding the heat expandable element |
Apr. 5, 1983 |
| 4377364 |
Silo unloading apparatus |
Mar. 22, 1983 |
| 4328913 |
Non-plugging screw conveyer |
May. 11, 1982 |
| 4215978 |
Resin moulding screws |
Aug. 5, 1980 |
| 4192418 |
Auger conveyer |
Mar. 11, 1980 |
| 4103788 |
Apparatus for discharging from a silo |
Aug. 1, 1978 |
| 4036411 |
Low profile auger and hopper assembly |
Jul. 19, 1977 |
| 4026426 |
Drying apparatus for grain, beans and the like |
May. 31, 1977 |
| 4015734 |
Sweep auger for bottom silo unloaders |
Apr. 5, 1977 |
| 3952857 |
Magnetic substance conveying apparatus |
Apr. 27, 1976 |
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