| 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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| 02/05/1991 | CA1279853C Method and apparatus for continuous gravimetric metering and feeding of pourable material |
| 01/29/1991 | US4988240 Connected to a pneumatic grain handling system |
| 01/24/1991 | WO1991000838A1 Manhole-mounted filtering system for self-loading semi trailer |
| 01/24/1991 | DE3923386A1 Pneumatic conveyor for fine material - has pressurised container, with filler opening, conveyor duct and ventilated sloping floor |
| 01/23/1991 | EP0409456A2 Pump with separate fluidizing vaned shaft adjacent impeller |
| 01/15/1991 | US4984610 With pyrogenically produced silica |
| 01/11/1991 | CA2012897A1 Manhole-mounted filtering system for self-loading semi trailer |
| 01/10/1991 | WO1991000234A1 Material discharge unit |
| 01/09/1991 | EP0406577A1 Diverter rotary valve |
| 01/09/1991 | CN2068955U Pneumatic conveying apparatus for mineral powders |
| 01/03/1991 | DE3920635A1 Device for fluidising and conveying powder - has barrel socket as downwardly pointing hollow cone enclosing cylinder vibrator |
| 12/27/1990 | EP0403471A1 Arrangement for the transport of goods in bulk. |
| 12/25/1990 | US4979756 Seal arrangement |
| 12/19/1990 | EP0403017A1 Mortar transport apparatus |
| 12/19/1990 | CN2067692U Curve device for locking air |
| 12/18/1990 | US4978252 Material feeding apparatus using pressurized air |
| 12/18/1990 | US4978251 Method and apparatus for conveying materials in bulk by liquid pressure |
| 12/13/1990 | DE4004415C1 Sliding vane closure for granular bulk material - has deflector body, filling pocket-shaped recess, formed by scraper edge sections on housing inner wall |
| 12/13/1990 | DE3918584A1 Temp. controller fluent building material - has microwave generators spaced along microwave-transparent feed line coupled to pump |
| 12/11/1990 | US4976586 Pump with separate fluidizing vaned shaft adjacent impeller |
| 12/11/1990 | US4976288 Tubing bend for pneumatic conveying system |
| 12/04/1990 | US4975100 Particle separator device and apparatus for the pneumatic conveyance of granular materials |
| 12/04/1990 | US4974999 Lock for a railroad hopper car outlet gate end tube assembly |
| 12/04/1990 | US4974646 Powder flow control valve |
| 12/04/1990 | US4974494 Knocking device with autocontrol |
| 12/04/1990 | CA1277205C Valve for pneumatic spreading of fluidisable material |
| 12/04/1990 | CA1277147C Vacuum particulate transfer apparatus |
| 11/27/1990 | US4973203 Particulate material pick-up assembly |
| 11/27/1990 | US4973202 Hood assembly device for removal of undesired glass particles |
| 11/27/1990 | CA1276918C Powder delivery system |
| 11/22/1990 | DE3915125A1 Rotary two-way slide valve - has cylindrical, pivot mounted stop cock with three connecting pipes and continuous seal |
| 11/20/1990 | US4971482 Pneumatic system and method for conveying of sand |
| 11/14/1990 | CN1010387B Absorbing powder out apparatus |
| 11/13/1990 | US4969481 Method for transferring short fibers |
| 11/06/1990 | CA1275967C Device for loading containers for particulate materials and the use thereof |
| 11/04/1990 | WO1990013500A1 Pumping coal slurries |
| 10/31/1990 | EP0394945A2 System for removal of asbestos material |
| 10/31/1990 | CN2064758U Inclined chute-and-self-locking type powder discharging device |
| 10/31/1990 | CN1010221B Anti-erosion protrusions for wear surfaces in fluid conduits |
| 10/31/1990 | CN1010220B Transportation method of synthetic rubber chips |
| 10/25/1990 | DE3922978A1 System for controlling liquid or vapour pressure in buffer vessel - uses electronic comparator and three=way membrane valve |
| 10/25/1990 | CA2015234A1 System for removal of asbestos material |
| 10/23/1990 | US4964435 Shuttle valve |
| 10/23/1990 | CA1275468C Pulverized solid control system |
| 10/23/1990 | CA1275465C Method of checking the loading and unloading of tankers by means ofan electromagnetic identification system, and an identification system for use in said method |
| 10/18/1990 | DE3911786A1 Channel for transporting fluidisable lightweight granules - has porous bottom made of 2 layers of textile material or of porous plastics |
| 10/16/1990 | US4963065 Centrifugal pump for pulverized material |
| 10/11/1990 | DE3910796A1 Conveying hose for building materials with an easy-to-operate cleaning device |
| 10/10/1990 | EP0084559B2 Process for preparing a coal-water slurry |
| 10/09/1990 | CA1275135A1 Control system for a continuous process venturi accelerated pneumatic pump |
| 10/09/1990 | CA1275020A1 Method of maintaining a stabilized coal-water slurry |
| 10/04/1990 | DE3910617A1 Cellular-wheel sluice |
| 09/27/1990 | DE3940668C1 Deflector valve for pneumatic conveyor - has part-cylindrical valve body inside cylindrical housing |
| 09/27/1990 | DE3909212A1 Apparatus for introducing concrete into tunnel shutterings |
| 09/18/1990 | US4957198 Apparatus and method for unloading bulk materials |
| 09/12/1990 | EP0386943A1 Process for production of coal-water mixture |
| 09/12/1990 | EP0386637A1 Powder-metering device |
| 09/12/1990 | EP0386460A2 Stop valve for pipelines transporting bulk goods |
| 09/12/1990 | EP0386208A1 Process and device for intermittently spraying a pasty composition |
| 09/11/1990 | WO1990010588A1 Device for conveying fluid materials |
| 09/11/1990 | US4955989 Process for conveying a particulate solid fuel |
| 09/11/1990 | US4955761 Process for pneumatically conveying material and apparatus for controlling the feed of air therefor |
| 09/11/1990 | CA2050476A1 Device for conveying fluid materials |
| 09/06/1990 | CA2011493A1 Process for production of coal-water mixture |
| 09/06/1990 | CA2011236A1 Device for shutting off pipelines for the transport of bulk products |
| 09/05/1990 | CN1009451B Improved apparatus for reclamating slurry from bottom of storage silo |
| 09/04/1990 | US4953792 Dry powder applicator |
| 08/29/1990 | EP0384827A1 Non-mechanical regulator for the flow of solids between two fluidised media |
| 08/29/1990 | EP0383896A1 Apparatus for pneumatic transportation of particulate material such as tobacco. |
| 08/29/1990 | CN1044929A Vortex hoist |
| 08/29/1990 | CN1009353B Uniformly distributing device for slurry |
| 08/29/1990 | CN1009343B Control system for solid powder |
| 08/28/1990 | US4952100 Pipe switch for plants for pneumatically conveying bulk material |
| 08/28/1990 | US4952099 Device for hydraulic conveyance of loose materials |
| 08/28/1990 | US4951724 Coupling device |
| 08/28/1990 | CA1273380A1 Inline venturi for pneumatic conveying systems |
| 08/28/1990 | CA1273200A1 Coal-methanol slurry and its production process |
| 08/24/1990 | CA2010831A1 Non mecanical regulator of flow of solids between two fluidized media |
| 08/23/1990 | DE4003733A1 Fitting assembly for grinding mill pipelines - has spherical parts formed by several interconnected spherical housings with slidably abutting edges |
| 08/22/1990 | EP0383093A2 Method for the pneumatic and dosed injection of pulverised material into a vessel, subjected to a variable pressure |
| 08/22/1990 | CN1009266B Pneumatic regulating valve for fluidizable material |
| 08/14/1990 | US4948017 Rotary feeder |
| 08/14/1990 | US4947903 Material recovery apparatus |
| 08/09/1990 | WO1990008915A1 Wear indicator for material transfer systems |
| 08/09/1990 | DE3906774A1 Device for closing and opening pipe conduits |
| 08/08/1990 | EP0381424A2 Improved apparatus for blending and withdrawing solid particulate material from a vessel |
| 08/07/1990 | US4946317 Coal log pipeline system and method of operation |
| 08/07/1990 | US4946078 Apparatus for feeding bulk material |
| 08/07/1990 | US4945956 Device for transferring toner from a transport container into a toner reservoir |
| 08/01/1990 | EP0379628A1 Method for the pneumatic transport of materials and device for the air-feed control thereof |
| 08/01/1990 | CN1044352A Apparatus and operating method of stream carrier for carrying flow material |
| 07/31/1990 | US4944637 Valved seed outlet |
| 07/26/1990 | WO1990008723A1 Feeder for particulate material |
| 07/26/1990 | WO1990008083A1 Ejector with peripheral supply of propellent gas |
| 07/26/1990 | DE3901773A1 Locking unit for conveying devices, especially for bulk materials |
| 07/26/1990 | DE3901618A1 Pipeline bend |
| 07/26/1990 | DE3901301A1 Pipeline for pneumatically conveying bulk material |
| 07/26/1990 | CA2045638A1 Feeder for particulate material |
| 07/19/1990 | DE3901110A1 Pneumatic elevator |
| 07/18/1990 | EP0377979A1 Pipe for the pneumatic transport of polymer particles |