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Class Information
Number: 34/137
Name: Drying and gas or vapor contact with solids > Apparatus > Rotary drums or receptacles > With gas or vapor flow for contact with treated material > Axial treated material feed type > Countercurrent gas or vapor flow only
Description: Apparatus in which the gas or vapor that contacts the material is introduced at the material discharge end and is discharged at the material feed end, i.e., the directions of flow of the material being treated and the treating gas and/or vapor are opposite.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7343697 |
Low profile flights for use in a drum |
Mar. 18, 2008 |
| 7204636 |
Granular and aggregate blending, cooling and screening rotary drum |
Apr. 17, 2007 |
| 7155841 |
Rotary impinging stream dryer |
Jan. 2, 2007 |
| 7044630 |
Counter-flow asphalt plant method |
May. 16, 2006 |
| 6931758 |
Method of controlling moisture of material and apparatus therefore |
Aug. 23, 2005 |
| 6672751 |
Counter-flow asphalt plant with combustion zone feed and exhaust gas heater |
Jan. 6, 2004 |
| 6584700 |
Drying and cooling unit |
Jul. 1, 2003 |
| 6564470 |
Roasting appliance |
May. 20, 2003 |
| 6478461 |
Transportable hot-mix asphalt manufacturing and pollution control system |
Nov. 12, 2002 |
| 6425685 |
Process for reclaiming salvaged asphalt |
Jul. 30, 2002 |
| 6340240 |
Drum mixer having isolated aggregate transport channels |
Jan. 22, 2002 |
| 6267493 |
Drum mixer having a plurality of isolated aggregate transport channels |
Jul. 31, 2001 |
| 6185842 |
Apparatus and methods for controlling the temperature of exhaust gases in a drum mixer |
Feb. 13, 2001 |
| 6138377 |
Apparatus and process for cooling and de-steaming calcined stucco |
Oct. 31, 2000 |
| 6110430 |
Decontamination plant including an indirectly heated desorption system |
Aug. 29, 2000 |
| 5822881 |
Method for conditioning refuse |
Oct. 20, 1998 |
| 5802734 |
Method for facility for dehydrating plants, particularly for dehydrating forage |
Sep. 8, 1998 |
| 5737849 |
Recycle moisture evaporation system |
Apr. 14, 1998 |
| 5697168 |
Indirect heating screw conveyor |
Dec. 16, 1997 |
| 5664882 |
System for concurrently remediating contaminated soil and producing hot mix asphalt |
Sep. 9, 1997 |
| 5628126 |
Revolving drum drying apparatus and method |
May. 13, 1997 |
| 5620249 |
Compact enclosable asphalt plant |
Apr. 15, 1997 |
| 5613306 |
Method and apparatus for conditioning refuse |
Mar. 25, 1997 |
| 5579587 |
Recycle moisture evaporation system |
Dec. 3, 1996 |
| 5555639 |
Rotary drum dryer |
Sep. 17, 1996 |
| 5551166 |
Dryer drum coater having vented outer shell for VOC/NOx reduction |
Sep. 3, 1996 |
| 5515620 |
Method and apparatus of rotatable drum dryer with flights releasably secured in different orientations |
May. 14, 1996 |
| 5480226 |
Rotary drum dryer having aggregate cooled shielding flights and method for the utilization thereof |
Jan. 2, 1996 |
| 5470146 |
Countercurrent drum mixer asphalt plant |
Nov. 28, 1995 |
| 5455005 |
Material remediation in multi-function heating drum |
Oct. 3, 1995 |
| 5412881 |
Method and apparatus for conditioning refuse |
May. 9, 1995 |
| 5407809 |
Digester for converting organic material into compost |
Apr. 18, 1995 |
| 5403395 |
Reel for applying topical substances to base products |
Apr. 4, 1995 |
| 5393501 |
Material remediation in multi-function heating drum |
Feb. 28, 1995 |
| 5321900 |
Food and materials dryer |
Jun. 21, 1994 |
| 5318049 |
Method of and apparatus for drying a tobacco sample and determining the moisture content thereof |
Jun. 7, 1994 |
| 5305533 |
Combined direct and indirect rotary dryer with reclaimer |
Apr. 26, 1994 |
| 5261738 |
Asphalt drum mixer with bypass for controlling the temperature of the exhaust gas |
Nov. 16, 1993 |
| 5197204 |
Rotary dryer and associated drying plant |
Mar. 30, 1993 |
| 5178456 |
Device for the preparation of bituminous coated products comprising a drum with parallel streams and a countercurrent drum and corresponding process |
Jan. 12, 1993 |
| 5116363 |
Method and apparatus for conditioning refuse |
May. 26, 1992 |
| 5083870 |
Asphalt plant with segmented drum and zonal heating |
Jan. 28, 1992 |
| 5067254 |
Method and apparatus for modifying a veil of materials in a drum of a drying apparatus |
Nov. 26, 1991 |
| 5052809 |
Rotary drier |
Oct. 1, 1991 |
| 5015302 |
System and method for recovering and recycling of adhering surface-treatment solutions from barrels and their loads |
May. 14, 1991 |
| 4964226 |
High turndown rotary dryer flights |
Oct. 23, 1990 |
| 4898472 |
Plant of batch system for producing a composite paving material by using a bituminous waste pavement material |
Feb. 6, 1990 |
| 4892411 |
Asphalt mixer apparatus and method |
Jan. 9, 1990 |
| 4813154 |
Method and apparatus for conditioning fibrous materials |
Mar. 21, 1989 |
| 4640024 |
Apparatus for treating cloth goods |
Feb. 3, 1987 |
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