| Patents for B65G 53 - Conveying materials in bulk through troughs, pipes, or tubes by floating the materials, or by flow of gas, liquid, or foam (10,589) |
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| 10/06/1981 | US4293227 Spraying unit for unhardened concrete and the like |
| 10/06/1981 | CA1110095A1 Rotary charger |
| 10/01/1981 | WO1981002773A1 Coal dust tank provided with a metered discharge device,particularly for small dust quantities |
| 10/01/1981 | WO1981002724A1 Method for adjusting the transport conditions in a pneumatic conveyor and pneumatic plant in a flour-mill for implementing such method |
| 09/29/1981 | CA1109851A1 Rotary valves |
| 09/23/1981 | EP0036219A1 Pneumatic device for flour-transport |
| 09/23/1981 | EP0036064A1 Booster valve for assisting the flow of material in a conveyor tube |
| 09/09/1981 | EP0035281A2 Method and apparatus of blowing mortar or the like |
| 09/02/1981 | EP0034616A1 A method and a system for pneumatically conveying a granular material out of a drying store |
| 09/01/1981 | US4286935 Earth and sand conveyor system |
| 09/01/1981 | US4286910 Peristaltic valve for transferring material between zones |
| 09/01/1981 | CA1108207A1 Apparatus for hydraulically transporting particulate solid material |
| 09/01/1981 | CA1108206A1 Control system of apparatus for transporting slurry |
| 08/27/1981 | EP0028249A4 Apparatus for throttling a dry pulverized solid material pump. |
| 08/27/1981 | EP0027459A4 A system for throttling and compensation for variable feedstock properties. |
| 08/26/1981 | EP0034539A2 Installation for recovering the ingredients of a mixture of heterogeneous consistency, such as residues of ready-to-use concrete |
| 08/26/1981 | EP0034289A1 Device for extracting bulk material, especially sand, pebbles and the like situated under water |
| 08/25/1981 | US4285617 Duct and flop-gate construction and method of handling dust or other particulate material |
| 08/25/1981 | CA1107792A1 Withdrawal of particulate material from a hopper |
| 08/19/1981 | EP0033832A1 Device for emptying powder-filled containers |
| 08/18/1981 | US4284372 Efficient handling and charging system for expanded, low-density, loose-fill packaging material(s) |
| 08/18/1981 | US4284369 Take-up head for bulk material conveyor installation |
| 08/18/1981 | US4284032 Pneumatic conveyor of adjustable conveyance capacity for powdered to granular bulk material |
| 08/05/1981 | EP0033171A2 Process for dewatering aqueous coal slurries |
| 08/04/1981 | US4282006 Heat energy |
| 08/04/1981 | US4281946 Pneumatic conveyance device and conveying method employing percolation of gas into flowable bulk material in a feed pipe |
| 07/23/1981 | WO1981001998A1 Feed mechanism |
| 07/22/1981 | EP0032206A1 Process for pneumatically injecting dosed quantities of finely divided solids into a vessel maintained at variable pressure |
| 07/21/1981 | US4279556 Auger airlock assembly having product cutting knife |
| 07/21/1981 | US4279549 Method and apparatus of self-regulation for a pneumatic conveyor |
| 07/14/1981 | US4278531 Apparatus and method for transporting items |
| 07/14/1981 | US4278367 Feeder apparatus for pneumatic conveying lines |
| 07/07/1981 | CA1104614A2 Pneumatic conveying device |
| 06/30/1981 | US4275824 Rotary valves |
| 06/30/1981 | CA1104174A1 Mechanical aerator for suction nozzle |
| 06/30/1981 | CA1104173A1 Method for transporting coal |
| 06/30/1981 | CA1104081A1 Method of transporting liquid pitch containing coke and apparatus therefor |
| 06/26/1981 | EP0027458A4 The kinetic extruder: a dry pulverized solid material pump. |
| 06/16/1981 | CA1103287A1 Method and apparatus for pneumatically charging a scale with flowable materials |
| 06/09/1981 | CA1102851A1 Waste water vacuum conveyance method and apparatus |
| 06/09/1981 | CA1102741A1 Coal slurry grain distribution adjustment prior to dehydration |
| 06/02/1981 | US4270575 Spool valve assembly |
| 06/02/1981 | CA1102212A1 Fluent material handling apparatus |
| 06/02/1981 | CA1102130A1 Apparatus and method for the supply of fuel powder to a gas-pressurized vessel |
| 05/27/1981 | EP0029262A1 A method and device for the feeding of finely divided solid matter to a gas-containing vessel |
| 05/26/1981 | US4269619 Using a nozzle to discharge treated ores as well as to charge with fluid to remove solids |
| 05/19/1981 | US4268205 Method and apparatus for removing material from the ends of a rotary air lock |
| 05/19/1981 | CA1101380A1 Constant vacuum barge unloading system |
| 05/13/1981 | EP0028249A1 Apparatus for throttling a dry pulverized solid material pump. |
| 05/12/1981 | US4266673 Apparatus for classifying dust materials |
| 05/12/1981 | CA1101021A1 Means and method for handling dry bulk materials in a hopper-type container |
| 05/12/1981 | CA1100879A1 Control apparatus for a pneumatically operated hopper feeder |
| 05/06/1981 | EP0028086A1 Material transporting apparatus |
| 05/06/1981 | EP0027909A1 Installation for conveying fine-grained material |
| 05/05/1981 | US4265737 Methods and apparatus for transporting and processing solids |
| 05/05/1981 | US4265580 System for throttling and compensation for variable feedstock properties |
| 05/05/1981 | US4265573 Particulate matter dispersing and transporting system |
| 05/05/1981 | US4265572 Process for the pneumatic transfer of a pulverulent material |
| 05/05/1981 | CA1100481A1 Eductor-mixer system |
| 04/30/1981 | WO1981001152A1 Coal-water slurry and method for its preparation |
| 04/29/1981 | EP0027459A1 A system for throttling and compensation for variable feedstock properties. |
| 04/29/1981 | EP0027458A1 The kinetic extruder: a dry pulverized solid material pump. |
| 04/28/1981 | US4264244 Diverter valves |
| 04/28/1981 | US4264243 Constant vacuum barge unloading system |
| 04/28/1981 | US4264238 Apparatus for separating particles of tobacco or the like from a gaseous carrier medium |
| 04/28/1981 | CA1100118A1 Sprocket-type loop carrier |
| 04/14/1981 | US4261713 Apparatus for the separation and recovery of a solid product transported by a gas |
| 04/14/1981 | US4261672 Suction head for a pneumatic plug-suction conveyor |
| 04/14/1981 | US4261196 Method and apparatus for determining solids conveyed in a slurry moving in a pipe |
| 04/14/1981 | CA1099313A1 Material transfer system |
| 04/14/1981 | CA1099217A1 Discharge apparatus for removing granular filter material from a filter housing and a filter apparatus having same |
| 04/08/1981 | EP0026301A2 Process for the removal or intermediate storage of wastes |
| 03/31/1981 | US4259032 Air lock |
| 03/31/1981 | CA1098458A1 Closed system and container for dust free loading and unloading of powdered materials |
| 03/24/1981 | US4257879 Process for dewatering coal slurries |
| 03/24/1981 | US4257334 Apparatus and method for regulating the distribution of granulate |
| 03/18/1981 | EP0025048A1 Method of emptying a powder or like material out of a container. |
| 03/10/1981 | CA1097393A1 Method of multiple point injection for slurry pipelines |
| 03/05/1981 | WO1981000555A1 A method and a system for pneumatically conveying a granular material out of a drying store |
| 03/04/1981 | EP0024343A1 Pump for the delivery of viscous substances, in particular for concrete |
| 03/03/1981 | CA1096623A1 Piston pump for use in gasifying fine grained and dust-like solids fuels |
| 02/24/1981 | US4252479 Rotary diverter valves |
| 02/18/1981 | EP0024054A1 Method and apparatus for the pneumatic conveying of fine-grained solids |
| 02/10/1981 | US4249839 Method and apparatus for suspending and transporting particulate material |
| 02/10/1981 | US4249838 Sealed flight screw injector |
| 02/10/1981 | US4249699 From mineral matter |
| 02/10/1981 | CA1095561A1 Method and apparatus for hydraulic conveyance of solids |
| 02/03/1981 | US4248552 End cap arrangement utilizing large headed bolts |
| 02/03/1981 | US4248551 End cap arrangement utilizing large headed bolts and single end wall stop |
| 01/28/1981 | EP0022913A1 Device for fluidising powdery material |
| 01/27/1981 | US4247227 Apparatus for the conveyance of dust-like or dust containing solids into a pressurized system by means of a pressurized lock chamber |
| 01/27/1981 | CA1094612A1 Dense-phase feeder method |
| 01/27/1981 | CA1094611A1 No translation available |
| 01/27/1981 | CA1094609A1 Apparatus and method for injecting particulate solid material into a pressurized process apparatus |
| 01/20/1981 | US4245932 Suction dredger and method of loading the same |
| 01/20/1981 | CA1094132A1 Method of unloading bulk materials from vessels and device for implementing same |
| 01/14/1981 | EP0022435A1 Evacuation system for particulate waste material |
| 01/13/1981 | US4244814 Floss separator |
| 01/13/1981 | US4244530 Grinding |
| 01/07/1981 | EP0021222A1 Process and apparatus for dosing and for pneumatically conveying and feeding solid materials to a vessel maintained under pressure |