| 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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| 01/09/1992 | DE4019627A1 Housing for sliding vane closure - has wear-resistant bush of two symmetrical parts, surrounded by outer elastomer flange |
| 01/08/1992 | CN2092524U Rubber pipe connector |
| 01/07/1992 | US5078548 Method of and an installation for removing and transferring refuse |
| 01/07/1992 | US5078261 Apparatus and method for unloading bulk materials |
| 12/31/1991 | US5076501 Shotcrete gun |
| 12/31/1991 | US5076317 Rotor handling system for rotary valves |
| 12/27/1991 | EP0462501A1 Rotary valve with clearance sealings for feeding bulk material into pneumatic conveyors |
| 12/27/1991 | EP0462500A1 Housing for a rotary valve |
| 12/27/1991 | EP0462119A1 Device for conveying fluid materials |
| 12/27/1991 | CA2044980A1 Slurry distributor |
| 12/25/1991 | CN2091292U 气动送料装置 Pneumatic feeding device |
| 12/19/1991 | DE4018770A1 Pump for viscous fibre-carrying suspensions - uses waste compressed air from motor and is of displacement type |
| 12/17/1991 | US5073259 Manhole mounted filtering system for self-loading semi-trailer |
| 12/17/1991 | US5072758 Rotary slide valve |
| 12/12/1991 | DE4018696A1 Pipe branch with reversible flap - has cylinder sector shape inside housing for closing unused outlet |
| 12/11/1991 | CN1056960A Method for passing cable or wire through passage |
| 12/10/1991 | US5071289 Particulate delivery system |
| 12/10/1991 | US5070910 Diverter valve with improved sealing means |
| 12/04/1991 | EP0459086A2 Process for fluidising, transporting and spraying solid or fluid coating materials |
| 12/04/1991 | CN1056738A Coanda spiral flow unit |
| 12/03/1991 | US5070328 Method of checking the loading and unloading of tankers by means of an electromagnetic identification system, and an identification system for use in said method |
| 12/03/1991 | US5069608 Vane pump for delivering pasty substances |
| 12/03/1991 | US5069583 Device for changing flow paths in a pneumatic conveying system |
| 12/03/1991 | US5069582 Vacuum producing device |
| 11/27/1991 | EP0457986A1 Method of passing an elongate flexible element through a passage |
| 11/26/1991 | CA1292453C Multi-channel bulk syrup delivery system |
| 11/21/1991 | EP0456931A1 Coanda spiral flow device |
| 11/21/1991 | EP0456660A1 Wear indicator for material transfer systems. |
| 11/20/1991 | CN1014820B Vortex hoist |
| 11/19/1991 | US5066186 Dust discharging apparatus for a furnace |
| 11/14/1991 | WO1991017105A1 Excavation system with pneumatic conveyance and separation of excavated material |
| 11/14/1991 | DE4014912A1 Pneumatic or hydraulic feed for solids in pipes - consists of thin flexible but strong cable turned by motor round sides of pipe |
| 11/13/1991 | EP0455809A1 Apparatus for pneumatically transporting high-density powdered or granular materials |
| 11/13/1991 | EP0455686A1 Feeder for particulate material |
| 11/13/1991 | CN2088539U Cement bag unloading machine |
| 11/12/1991 | US5064315 Blower |
| 11/07/1991 | DE4014229A1 Fluidisable material delivery system - with adjustable fluidising opening for precise dosing |
| 11/06/1991 | EP0455617A1 An arrangement for suppressing inhomogenization of particle mixtures |
| 11/05/1991 | US5062868 Method and apparatus for unloading mobile vacuum loaders |
| 10/31/1991 | WO1991016252A1 Quick clean rotary valve |
| 10/31/1991 | DE4013365A1 Device for supplying loose material into cell wheels sluices - has inlet opening tapering to small shear edge with cover with mould corresponding to inside of housing |
| 10/30/1991 | EP0453480A1 Transfer chambers for the conveyor in a pneumatic transport system. |
| 10/30/1991 | EP0453479A1 Transfer chambers for the conveyor in a pneumatic transport system |
| 10/30/1991 | EP0453478A1 Ejector with peripheral supply of propellent gas |
| 10/29/1991 | US5060984 Short radius, low wear elbow |
| 10/26/1991 | WO1991016253A1 Apparatus for introducing bulk materials into pneumatic conveying line |
| 10/23/1991 | EP0452635A1 Pneumatic powder transporting device |
| 10/23/1991 | EP0452378A1 Apparatus for pneumatic transportation of a particle material. |
| 10/23/1991 | EP0325599B1 Device for filling toner from a transfer container into a toner storage container |
| 10/22/1991 | CA1291192C Material conveying apparatus |
| 10/19/1991 | WO1991016136A1 Interstage separator |
| 10/16/1991 | EP0452152A2 Powder feed hopper |
| 10/16/1991 | CN2086739U Wind shutter |
| 10/15/1991 | US5056962 Method of sampling solid materials and sampling system to execute the method |
| 10/14/1991 | CA2038582A1 Powder feed hopper |
| 10/10/1991 | DE4010676A1 Continuous supply of concrete to work place - involves use of pressurised vessel and screw conveyor |
| 10/09/1991 | EP0450295A2 Fluidising and conveying device |
| 10/09/1991 | CN2086246U Stuff-suction device |
| 10/08/1991 | US5054966 Pipe for pneumatic transport of polymer particles |
| 10/08/1991 | US5054965 Diverter apparatus for pneumatic conveying system |
| 10/02/1991 | EP0448710A1 Source material delivery system. |
| 10/02/1991 | DE4108209A1 Filling hoppers with different powders - by using automatic control system with vacuum pipelines, various storage silos and valves, to fill hoppers with filling level regulators |
| 10/02/1991 | DE4010045A1 Cooling system for cement - has mixer tube for cooling fluid in cement feeder tube |
| 10/02/1991 | CN2085788U Impulse pneumatic conveying pump |
| 09/26/1991 | DE4009218A1 Rotary slide valve switch - has cylindrical cone plug in housing, with three connecting pipes, intermediates ring and flow ducts |
| 09/25/1991 | CN1054828A Pulverized coal flow monitor and control system |
| 09/19/1991 | DE4008407A1 Seal for rotating valve element - has pressure seal with periodic pressure pulses to loosen seal |
| 09/18/1991 | EP0447151A1 Horizontal belt conveyor airlock |
| 09/18/1991 | EP0446640A1 Method of conveying portions of grained or powdery material and device for carrying out this method |
| 09/18/1991 | EP0446520A2 Monitoring and controlling the flow of fluid transported solid particles |
| 09/18/1991 | CN1013932B Slurry input device |
| 09/17/1991 | US5049008 Air pulse discharge control valve for fluidizing dry particulate material |
| 09/17/1991 | US5049007 Horizontal belt conveyor airlock |
| 09/17/1991 | US5048761 Pulverized coal flow monitor and control system and method |
| 09/15/1991 | CA2034579A1 Pulverized coal flow monitor and control system |
| 09/12/1991 | DE4011698C1 Conveyor for powder container - has powder suction tube attached to injector and mounted on fluidiser |
| 09/11/1991 | CN2084465U Pipe coal powder conveying flow rate measuring device |
| 09/10/1991 | CA1288638C Method for controlling the particulate size distributions of the solids inventory in a circulating fluidized bed reactor |
| 09/04/1991 | EP0444075A1 A device for achieving uniform distribution of airborne fibres, e.g. cellulose-fibres |
| 09/04/1991 | CN1054201A Non-mechanical rate controller for solid flow established between two fluidized media |
| 09/03/1991 | US5044837 Method and apparatus for continuously feeding particulate solid material into a pressurized system without pressure loss |
| 08/28/1991 | CN1054047A Hydraulic conveying apparatus with combined flowing exchanger |
| 08/27/1991 | US5042209 Process for charging a carrier gas stream with a free-flowing material and process for operating the device |
| 08/27/1991 | US5042169 Interstage separator |
| 08/22/1991 | DE4004706A1 Automatic lock for container or silo filler pipe - has extensible pressurised chamber, with valve cone and outlet, and air holes |
| 08/21/1991 | EP0210162B2 Device for introducing a dosed quantity of powder into a carrier gas stream |
| 08/21/1991 | CN2083144U Intermittent discharger |
| 08/21/1991 | CN2083143U Air-operated elevator |
| 08/20/1991 | US5040929 Loading system for particulate materials |
| 08/20/1991 | CA1287855C Fluidizable pulverulent material regulated distribution device |
| 08/14/1991 | DE4038236A1 Paddle type sluice - has inflow and outflow shafts in housing, with air outlet |
| 08/14/1991 | DE4004388A1 Pipe switch for pneumatic conveyors for rubbish - consists of housing with three connections, stopcock and short pipe socket |
| 08/13/1991 | US5039258 Hydraulic transporter with united streaming reversing means |
| 08/08/1991 | WO1991011379A1 Inline venturi for pneumatic conveying systems |
| 08/07/1991 | CN2082263U Air-controlling type fluid conic taphole |
| 08/07/1991 | CN1053592A Feeder for particulate material |
| 08/06/1991 | US5037247 Powder pump with internal valve |
| 08/06/1991 | US5037246 Pneumatic conveyor for grainy material and suction nozzle for use in such conveyor |
| 08/06/1991 | CA1287275C Horizontally disposed apparatus for the random distribution of seeds and granular materials |
| 07/31/1991 | EP0439012A2 Method and apparatus for intermittently depositing particulate material in a substrate and article made therewith |