| 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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| 01/25/1990 | DE3902564C1 Apparatus for transporting powdery or granular material - construction-material mixtures - (material to be conveyed) |
| 01/23/1990 | CA1264788A1 Apparatus and process for pneumatically conveying particulate material |
| 01/17/1990 | CN2051220U Vane wheel supply apparatus |
| 01/17/1990 | CN1038832A Low pour crude oil compositions |
| 01/16/1990 | US4893966 Lock apparatus for introducing dry granular materials into a pneumatic conveying conduit and spray gun for such materials |
| 01/16/1990 | US4893656 Diverter valve |
| 01/10/1990 | EP0349690A1 Transporting powdered or granular materials by pneumatic force |
| 01/09/1990 | US4892123 Pneumatic conveying system |
| 12/28/1989 | DE3830413C1 Wheel pneumatic stower with cellular wheel and housing which have wearing layers |
| 12/28/1989 | DE3827676C1 Arrangement for transporting powdery or granular material - construction-material mixtures (material to be conveyed) - for use in underground mining or tunnelling |
| 12/27/1989 | EP0348008A1 Aeration tube discharge control device |
| 12/26/1989 | US4889452 Vented product pump and air filter arrangement |
| 12/26/1989 | US4889318 Molded hopper tee |
| 12/21/1989 | DE3823863A1 Underground-working method with hydraulic conveying and installation for carrying out the method |
| 12/21/1989 | DE3820710A1 Method and apparatus for blowing pneumatic conveying lines empty |
| 12/20/1989 | EP0347018A1 Method for transferring short fibers |
| 12/20/1989 | CN2049638U Device for conveying and separating of paper downs and scraps by air flow |
| 12/19/1989 | US4887936 Cyclone separator with accelerator plate for pneumatic conveyor |
| 12/13/1989 | EP0345484A2 Knocker with self-control |
| 12/07/1989 | DE3900580A1 Sealing arrangement |
| 12/06/1989 | EP0345008A1 Low pour crude oil compositions |
| 12/06/1989 | EP0344584A2 Sealing arrangement |
| 12/06/1989 | EP0344393A2 Dosing device for the fine dispensing of bulk material |
| 12/05/1989 | US4885012 Rotary screen for pneumatic grain handling |
| 12/05/1989 | US4884925 Apparatus and method for transfer and slurrying or dissolving hydratable dry bulk chemicals |
| 12/05/1989 | CA1263530A1 Injection of pulverulent materials by pneumatic means |
| 11/30/1989 | WO1989011431A1 Installation for dosing and unidirectional flow transport |
| 11/29/1989 | EP0343423A2 Cellular-wheel lock |
| 11/28/1989 | US4883406 Transport ventilator |
| 11/28/1989 | US4883390 Method and apparatus for effecting pneumatic conveyance of particulate solids |
| 11/23/1989 | DE3816231A1 Pipe fork having a switch-over flap and an actuating drive |
| 11/23/1989 | DE3815864A1 Apparatus for dividing a gas flow loaded with solid material |
| 11/23/1989 | DE3815863A1 Apparatus for dividing a gas flow loaded with solid material |
| 11/22/1989 | CN2048060U Full-auto gasification-injection conveying pump |
| 11/21/1989 | US4882042 Floss separating apparatus and method |
| 11/21/1989 | US4881862 Screw seal |
| 11/21/1989 | US4881855 Vacuum particulate transfer apparatus |
| 11/16/1989 | WO1989011090A1 A method and a system for handling sample materials, e.g. in mixing plants, for central analysis of the samples |
| 11/16/1989 | DE3815222A1 Apparatus for feeding a powdery material to a supply device |
| 11/02/1989 | WO1989010486A1 Material-feeding containers for thick-matter pumps |
| 11/02/1989 | EP0339327A1 Conveying device for pasty products |
| 11/02/1989 | DE3911424A1 Two-way switch for bulk material |
| 11/02/1989 | DE3813899A1 Conveying device for solids into or out of process spaces at different pressures |
| 11/01/1989 | CN2046876U Charging machine for bulk material |
| 10/18/1989 | EP0337132A2 Device for feeding powdery material to a supply arrangement |
| 10/18/1989 | EP0265426B1 Actuating device for pipe-chamber feeders of hydraulic transport equipments |
| 10/17/1989 | CA1262369A1 Apparatus for weighing bulk-material in the form of granules or dust |
| 10/10/1989 | USRE33084 Intermittently operating pneumatic device for pumping solid-carrying liquids and slurries |
| 10/05/1989 | WO1989009173A1 Apparatus for pneumatically transporting powder by high-concentration gas |
| 10/03/1989 | US4871284 Hydraulic transportation |
| 09/28/1989 | DE3813551A1 Apparatus for steep-incline conveying of construction material in underground operation |
| 09/27/1989 | EP0334019A2 Discharging device with air pressure for a bulk container with at least two discharging openings as well as a method for discharging the bulk container |
| 09/27/1989 | CN2044964U Universal air shutter |
| 09/27/1989 | CN1005270B Coal-water slurry compositions |
| 09/26/1989 | US4870535 Antistatic hose |
| 09/26/1989 | CA1260992A1 Pneumatic transportation system with a material feeder |
| 09/26/1989 | CA1260800A1 Method of generating spiral fluid flow and the device therefor |
| 09/26/1989 | CA1260710A1 Coal-water slurry compositions |
| 09/26/1989 | CA1260709A1 Aqueous coal dispersions |
| 09/26/1989 | CA1260441A1 Apparatus for discharging fine-grained solids |
| 09/26/1989 | CA1260045A1 Method of and apparatus for the hydraulic conveying of solids |
| 09/26/1989 | CA1259768A1 Method and apparatus for the preparation of foamed thermoplastic articles |
| 09/19/1989 | US4867615 Hopper car discharge gate |
| 09/12/1989 | US4865492 Actuating device for pipe-chamber feeders of hydraulic transport equipment |
| 09/12/1989 | CA1259247A1 Diverter valve |
| 09/06/1989 | CN2043971U Fluidization pneumatic transfer pump |
| 09/06/1989 | CN1035336A Construction technology of fluid-alluvial earthwork machine |
| 09/05/1989 | US4863317 Particulate material transportation |
| 09/05/1989 | US4863316 Closed loop powder flow regulator |
| 09/05/1989 | US4863076 Particulate material feeder utilizing vibration and aeration |
| 09/05/1989 | CA1259063A1 Arrangement in containers intended to hold pumpable substances and provided with a pump herefor |
| 08/31/1989 | DE3805531A1 Method for conveying powder and apparatus for carrying out this method |
| 08/31/1989 | DE3805221A1 Dust-discharge apparatus for underground mining behind high-performance fabric filters |
| 08/30/1989 | EP0330531A1 Device for feeding small articles to a transfer tube |
| 08/29/1989 | US4861200 Apparatus for pneumatically conveying bulk material |
| 08/24/1989 | WO1989007568A1 A method in the storage of particulate material |
| 08/23/1989 | EP0328914A2 Rotary valve assembly |
| 08/22/1989 | US4859209 Stable brown-coal/oil suspensions and a process for preparing same |
| 08/15/1989 | US4856941 High density pneumatic transport method for use in powder or granular material and system for practicing the method |
| 08/08/1989 | US4854783 Vertical hydro-hoist with adjustable floats and method of operating the same |
| 08/02/1989 | EP0325599A1 Device for filling toner from a transfer container into a toner storage container. |
| 07/26/1989 | EP0324937A1 Apparatus for introducing a fluid substance into a carrier gas, and method for operating the apparatus |
| 07/25/1989 | US4850751 Method and apparatus for introducing bulk material into a pneumatic conveyor conduit |
| 07/25/1989 | US4850749 Airlock having flaps in continuous feed of material carried by a gas stream while obstructing free flow of gas |
| 07/18/1989 | US4848396 Cast hopper tee |
| 07/12/1989 | EP0178310B1 Pneumatic charger for feeding pulverized and granular materials into metal melts |
| 07/11/1989 | US4846608 Pneumatic grain conveyor and related method |
| 07/11/1989 | US4846605 Pneumatic grain conveyor with universal frame |
| 07/11/1989 | US4846377 Limp, porous membrane for a fluidized outlet |
| 07/11/1989 | CA1257301A1 Vacuum loader |
| 07/11/1989 | CA1257225A1 Conveying device |
| 07/05/1989 | EP0322581A1 Process and device for the removal of obstructions in a conveyor tube |
| 07/05/1989 | CN1033606A Apparatus for conveying hot finely divided material |
| 07/05/1989 | CN1033605A 气动输送系统 Pneumatic conveying system |
| 07/05/1989 | CN1004687B Discharging apparatus of silos |
| 07/04/1989 | US4844665 Portable industrial filter system |
| 07/04/1989 | US4844664 Conduit air dispenser for improved in-car slurrying |
| 06/29/1989 | DE3743143A1 Apparatus and method for pneumatic conveying of bulk materials |
| 06/28/1989 | EP0322046A1 An agricultural machine for distributing material |
| 06/28/1989 | EP0321531A1 Air-regulating unit, process for regulating air flow and use of a buoyant body in such a system |