Patents
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)
07/1991
07/31/1991EP0438728A2 Sluice for charging and/or discharging bulk material
07/31/1991CN1053410A Automatic suction feeding device
07/30/1991US5035543 Material transfer apparatus
07/26/1991CA2008725A1 Powder sprayer with automatic powder supply system
07/25/1991WO1991010611A1 Improvements relating to conveying and separation apparatus
07/25/1991DE4021631C1 Branch point for pneumatic transport system - has annular segments, each of inner and outer segment portions of different materials
07/25/1991CA2074191A1 Conveying and separation apparatus
07/24/1991EP0438084A1 Concrete pump for wet spraying
07/23/1991US5033914 High efficiency feeder apparatus for pneumatic conveying lines
07/23/1991CA1286538C Vertical hydro-hoist and method of operating the same
07/18/1991DE4002760A1 Concrete pump for wet spray process - has control to ensure adequate supply of compressed air
07/17/1991CN2080933U Automatic device for sucking and conveying material
07/16/1991CA1286345C Feed and separation device
07/16/1991CA1286344C Product pump system
07/11/1991WO1991009800A1 Particulate delivery system
07/11/1991DE4038901A1 Feed hopper outlet valve for granular or powdered material - has operation controlled by suction pressure in conveying line
07/10/1991CN2080501U High-pressure wind unloader without transmission
07/09/1991US5030037 Porous filter pad for fluid pressure conveying systems
07/09/1991US5029517 Vaneless rotary airlock valve
07/09/1991CA2016411A1 Method and apparatus for intermittently depositing particulate material in a substrate and article made therewith
07/03/1991CN1052641A Gas and dust separating device
07/02/1991US5028224 Apparatus for intermittently depositing particulate material in a substrate
07/02/1991US5027835 Peripheral walls
06/1991
06/27/1991DE3942144A1 Stabilisierung von k1k2p pro Stabilization of K1K2P per
06/26/1991CN2079612U Device for suction material
06/21/1991WO1991008763A1 Stabilization of k1k2p pro
06/20/1991DE3941735A1 Pneumatically supplied loose material contg. detaches powder - by vibrated zigzag filter in cylindrical head and air scouring of tapreed base
06/19/1991EP0432854A1 Device for remote pouring of concrete
06/19/1991EP0432778A2 Slurry supply device
06/19/1991CN2079173U Wind transportation two-tube material suction device
06/19/1991CN2079172U Wind transportation material suction device
06/18/1991US5024561 Bulk material feeder provided with internal cleaning mechanism
06/18/1991US5024466 Wear-prevention structure for pneumatic conveying pipe elbow
06/16/1991CA2031730A1 Slurry supply device
06/13/1991DE4038237A1 Cell wheel sluice - has bending resistant bearing for cell wheel set between side discs and housing flange
06/12/1991EP0432102A1 A vehicle for the transport and the unloading of loose products
06/12/1991CN2078738U Air-conveying feeding device with measuring means
06/11/1991CA1284808C High speed auger venturi system and method for conveying bulk materials
06/05/1991EP0430438A2 Powder pump with internal valve
06/05/1991CN1051894A Transporting method and device of free piston mud pump
06/04/1991US5020943 Pipe for the pneumatic transport of polymer particles
05/1991
05/29/1991CN1051707A Source material delivery system
05/28/1991US5018909 Powder feed hopper
05/23/1991CA2029949A1 Lock for a railroad hopper car outlet gate end tube assembly
05/22/1991EP0427881A1 Method and device for controlling the volumetric stream of an air suction conveying installation
05/22/1991CN1051540A Device for handling of bulk material
05/21/1991US5017053 Aeration device for bulk material containers
05/16/1991WO1991006495A1 Two-rotor powder-dispensing apparatus
05/15/1991EP0427267A1 System for pneumatically transporting solid materials at high density
05/15/1991EP0426709A1 A process and device for distributing pumpable viscous materials among several lines.
05/14/1991US5015126 Method of and apparatus for supplying pulverulent material to a processing device
05/14/1991US5014885 Apparatus for feeding bulk material
05/08/1991EP0426334A1 A rotary valve
05/08/1991DE3936625A1 Grooved gutter or pipe - causes inner spiral flow and secondary flow
05/08/1991CN2076536U Electric material-sealing type valve for discharging ash
05/07/1991US5013530 Sparger system for discharge of bulk material from hopper cars
05/07/1991US5012984 Fuel, pulverization, suction
05/07/1991CA1283881C Apparatus for conveying hot finely divided material
04/1991
04/25/1991DE3940667C1 Sealed rotary valve assembly - incorporates cylindrical housing and seal elements in ends of rotor blades
04/24/1991EP0423850A2 Automatic powder feeding apparatus
04/24/1991EP0423559A1 Pneumatic suction conveying plant for gravimetric metering of bulk material components
04/23/1991US5009552 Wear resistant grain flow control elbow
04/23/1991US5009551 Material handling system and control valve therefor
04/19/1991WO1991005723A1 Source material delivery system
04/19/1991CA2044160A1 Source material delivery system
04/18/1991WO1991004932A1 Materials handling apparatus and method
04/17/1991EP0423082A2 Appliance for the decantation and recovery of powdery products in pneumatic conveyors
04/16/1991US5007564 Dosing or feeding apparatus for precisely feeding loose bulk material
04/10/1991EP0421969A1 A device for handling of bulk material
04/10/1991EP0303641B1 Transport ventilator
04/09/1991US5006019 Pneumatic pickup probe
04/09/1991US5006018 Feed and separation device
04/09/1991CA1282815C Method and apparatus for conveying solids using a high velocity vacuum
04/06/1991WO1991004929A1 A device for handling of bulk material
04/06/1991CA2067361A1 Device for handling of bulk material
04/02/1991CA1282227C Gas distribution plate for fluidisation
03/1991
03/27/1991CN1012158B Pneumatic conveying system
03/26/1991US5002615 Sparger system for discharge of bulk material from hopper cars
03/26/1991US5002463 Solid/liquid mixture
03/26/1991US5002092 Inline venturi for pneumatic conveying systems
03/26/1991US5002084 Quick clean rotary valve
03/26/1991CA1281948C Method and device for batching powdery materials
03/26/1991CA1281946C Granular material conveyor
03/20/1991EP0417444A2 Device for removing fine-grained solid materials
03/20/1991CN2073407U Air shutter being able to yield automaticlly and adjust clearance followly
03/13/1991EP0416475A2 Method and apparatus for transporting dry plastics granules
03/13/1991CN1011956B Piping transportation system for high-density gas-solid-liquid three-phase fluid
03/06/1991EP0415359A2 Vacuum-type sewage collecting system and vacuum valve controller for the same
03/05/1991US4997318 Apparatus for continuously conveying a powder in a gas flow
03/05/1991CA1280994C Storage silo emptying device
03/01/1991CA2024026A1 Vacuum-type sewage collecting system and vacuum valve controller for the same
02/1991
02/28/1991DE3928174A1 Device for hydraulic conveyance of loose materials
02/27/1991EP0413761A1 A method and a system for handling sample materials, e.g. in mixing plants, for central analysis of the samples
02/26/1991US4995645 Elbow connection for pneumatic conveying system
02/19/1991US4993886 Air regulating unit, process for regulating air flow, and use of a lifting body in such a system
02/19/1991US4993881 Such as cereal grain
02/12/1991US4992006 Device for hydraulic conveyance of loose materials
02/12/1991US4991998 Mine cooling power recovery system
02/12/1991CA1280052C Valve for distributing particulate materials
02/06/1991EP0410972A1 Material-feeding containers for thick-matter pumps.
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