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| Number | Title | Issue Date |
| 7144203 | Apparatus and method for conveying and vacuuming fibrous insulation material A method and apparatus for conveying and vacuuming fibrous insulation material. A blower provides an air flow stream through an insulation feeder and a conveying hose for application of the insulation. The air flow stream velocity is selectively controlled responsiv... | 12/05/2006 |
| 6964543 | Apparatus and method for conveying and vacuuming fibrous insulation material A method and apparatus for conveying and vacuuming fibrous insulation material. A blower provides an air flow stream through an insulation feeder and a conveying hose for application of the insulation. The air flow stream velocity is selectively controlled responsiv... | 11/15/2005 |
| 6955506 | Device for pneumatic conveying of bulk material, especially granular material A device for pneumatically conveying bulk material has at least one flow limiter arranged in a conveying airstream. The flow limiter has a housing and at least one control member arranged in the housing. The control member controls a flow velocity of the conveying a... | 10/18/2005 |
| 6588988 | Apparatus for conveying bulk material with vacuum-responsive controlled introduction of a conveying gas An apparatus for conveying bulk material in which a variable amount of a conveying gas may be introduced to the bulk material to be conveyed by a negative pressure of a vacuum conveying system. In a conveying line (4) for the bulk material being transport... | 07/08/2003 |
| 6287056 | Method of operating a pulse flow conveying installation and pulse flow conveying installation for carrying out the method In a method of operating a pulse flow conveying installation (10), which is intended for the conveying of a solid material (33), present in the form of bulk material, by means of a conveying gas, in which pulse flow conveying installation (10) an alternat... | 09/11/2001 |
| 5538162 | Apparatus and method for dosing A dosing apparatus provides for dosing a particulate phase within a free flowing two phase flow of a gas phase and the particulate phase, wherein the two phase flow leaves a fluidized bed. The apparatus includes, at its bottom, a gas inlet mechanism to su... | 07/23/1996 |
| 5494381 | Apparatus and method for pneumatically conveying bulk materials A bulk material conveying system includes a closed chamber having an inlet and an outlet and a conveyor communicating with the chamber outlet for receiving bulk material from the chamber. A pressurized gas is supplied to the upper portion of the chamber a... | 02/27/1996 |
| 5480268 | Rotary airlock feeder with low pressure purge system A rotary airlock feeder is connected to transfer particulate material between a storage bin and a pneumatic convey line. The pneumatic convey line includes a pressure reducing orifice plate which produces a pressure differential in the convey line between... | 01/02/1996 |
| 5469994 | Apparatus and method for dosing a particulate phase present in a gas/particle flow from a fluidized bed Apparatus meters solid present in the gas/solid stream from a fluidized-bed apparatus, in which gas and solid are present as a prehomogenized, free-flowing mixture in a fluidized bed and in which at least one outlet orifice for removal of the gas/solid st... | 11/28/1995 |
| 5407305 | Continuous dense phase conveying method utilizing high pressure gas at predetermined gas pressures within a conveying pipe A continuous dense phase conveying method and apparatus, for conveying large quantities of dry bulk material through a material conveying pipe, feed particulate material into the conveying pipe and supply a quantity of low pressure gas into the pipe to fo... | 04/18/1995 |
| 5354152 | Method and apparatus for conveying ice lumps In apparatus for conveying batches of ice lumps from a storage hopper to remotely located ice dispensers, ice lumps from the storage hopper are delivered into the main conduits through corresponding main valves and connecting conduits extending between ea... | 10/11/1994 |
| 5145253 | Blender for particulate material An integrated process blending apparatus which blends particulate material and also automatically controls the flow of material into the blender and out to the associated processing equipment. Load cells attached to the blender vessel are used to control ... | 09/08/1992 |
| 5114280 | Vacuum type sewage collecting system and vacuum valve controller for the same A vacuum type sewage collecting system, for collecting sewage from a plurality of houses or the like, stores sewage in a sewage reservoir and then delivers the sewage to a sewage treatment station through a vacuum valve and a vacuum sewage pipe. A control... | 05/19/1992 |
| 5071289 | Particulate delivery system A system for delivering a particulate material has a closed storage hopper for the material, the hopper having a bottom hopper outlet and a check valve connected to a top portion of the chamber for venting positive pressure from the chamber; a venturi edu... | 12/10/1991 |
| 5009551 | Material handling system and control valve therefor A system for handling particulate material includes a rotary valve for feeding material from a holding device to a receiving device. The rotary valve includes a slide valve that is electrically controlled in response to sensed conditions in the handling s... | 04/23/1991 |
| 4940367 | Pneumatic flock feed system for supplying multiple cards and/or staple carting machines The fiber processing plant has a pneumatic flock feed system which is operated in dependence on an operating parameter which, in turn, is dependent upon the number of fiber processing machines which are operating at a given time. In one embodiment, a mete... | 07/10/1990 |
| 4940131 | Material handling system and control valve thereof A rotary valve for use in a particulate material handling system having an elevated device for holding a supply of the particulate material, a lower material receiving device and a remote control device. The rotary valve includes a housing having a rotor ... | 07/10/1990 |
| 4938637 | Method and apparatus for bottom loading a pneumatic transport pressure vessel The pneumatic conveying system according to the present invention includes a pneumatic transport pressure vessel having funnel-shaped sides and a closed domed top. The pneumatic transport presure vessel has a single inlet/outlet opening at the bottom of t... | 07/03/1990 |
| 4911824 | Method for determining and controlling the amount of finely divided particulate solids added to a stream of fluid The amount of finely divided particulate solids added to a stream of fluid to form a mixture of the particulate solids and the fluid is determined by a method comprising (a) determining the temperature and quantity of fluid in a stream of fluid; (b) deter... | 03/27/1990 |
| 4900199 | High pressure power feed system A system for feeding powder into high backpressure includes a carrier gas conduit with an orifice for entraining powder from a hopper, and a line for discharging feed gas at regulated pressure into the hopper to effect entrainment. A gas bleeder line has ... | 02/13/1990 |
| 4863316 | Closed loop powder flow regulator A powder feeding system includes closed loop regulation of powder feed rate. A feed gas is discharged under constant pressure into an enclosed hopper. A valve is disposed to constrict a carrier conduit conveying powder in a carrier gas. A load cell measur... | 09/05/1989 |
| 4784533 | Solids feeder Solids drained from a fluidized bed 10 pass to a conical transition section 36 and through valve 50 to a pneumatic transport line 46. The flow of solids is controlled by controllably 56 introducing air 58 into the transition section 36.... | 11/15/1988 |
| 4749312 | Process for the dosing and transfer of a granular product and corresponding installation A granular product to be dosed is introduced at the same time as a transfer liquid into a dosing chamber below a retaining grid, provided in the upper part thereof. The measurement of the pressure upstream of the dosing chamber makes it possible to detect... | 06/07/1988 |
| 4743143 | Powder flow-rate measuring and controlling apparatus It is provided a powder flow-rate measuring apparatus wherein a conveying fluid is blown into the inlet of a detecting pipe line with a nozzle, a powder in fluidized state is introduced into said inlet, and the generated pressure difference due to acceler... | 05/10/1988 |
| 4738289 | Apparatus for weighing granular or pulverulent bulk goods An apparatus for weighing granular or pulverulent bulk goods, where the bulk good is moved by reduced pressure from a silo through at least one conveyance duct to a scale and where the flow of material is lowered by increasing the proportion of air toward... | 04/19/1988 |
| 4718795 | Unloading outlet assembly The difference in the pressure drop in a pneumatic discharge conduit between at least one discharge outlet into the conduit and a point downstream of the discharge outlet caused by lading in the discharge conduit is used to control opening and closing of ... | 01/12/1988 |
| 4711607 | High speed auger venturi system and method for conveying bulk materials An auger venturi conveying system for particulate materials includes a hopper-fed auger conveyor section for transporting the particulate material toward the discharge end of a barrel and a venturi arrangement for non-turbulent mixing of the material tran... | 12/08/1987 |
| 4679704 | Gravity pipe transport system This invention relates to apparatus for the pipe transport of material comprising non-slurried solids particles by means of a pipe which is generally upright. The material to be transported and also air are introduced at the top of the pipe. In order to p... | 07/14/1987 |
| 4677917 | High volume covered hopper car with loading from below and automatic unloading A high volume covered railway hopper car is disclosed which has vertical end walls so as to fully utilize the space over the trucks of the car for lading volume. An automatic pneumatic unloading system is provided so as to unload a pulverant lading from t... | 07/07/1987 |
| 4613259 | Apparatus for controlling powder flow rate in a carrier gas Apparatus for delivering two or more powders at any controlled ration to a thermal spray apparatus permits the controlled production of graded sprayed coatings. The apparatus also monitors and controls the position of the spray apparatus relative to the w... | 09/23/1986 |
| 4594028 | Apparatus and process for the injection of metered amounts of pulverized material into a vessel This invention presents apparatus and a process for the injection of metered amounts of pulverized materials by a pneumatic device into a vessel which is under variable pressure, and the application thereof to a shaft furnace.... | 06/10/1986 |
| 4573504 | Equipment for the removal of air out of pulverulent materials Equipment for the removal of air out of pulverulent materials before the product is packaged or transferred. The equipment comprises a storage silo (1), out of which the pulverulent material to be packaged flows readily into the packaging vessel placed un... | 03/04/1986 |
| 4545410 | System for transferring dry flowable material A system for transferring dry flowable material includes a substantially closed vessel having an inlet and a discharge end. A cycle valve and venturi are arranged between a source of fluid pressure and the vessel such that the cycle valve may be selective... | 10/08/1985 |
| 4544306 | Automatic unloading outlet assembly The difference in the pressure drop in a pneumatic discharge conduit (5) between at least one discharge outlet (3) into the conduit and a point 9 downstream of the discharge outlet caused by lading in the discharge conduit is used to control opening and c... | 10/01/1985 |
| 4502819 | Constant discharge device in a conveyor for powdery and granular materials A constant discharge device for a pneumatic conveyor for powdery or granular materials includes a discharge regulator valve disposed in a pressure tank that stores the powdery or granular material and movable toward or away from a discharge nozzle which h... | 03/05/1985 |
| 4480947 | Powder flow rate measuring apparatus A novel powder flow rate measuring apparatus having a simple structure is described herein, in which a conveying fluid is injected through a nozzle into an inlet of a single detecting pipe line having an inlet and an outlet, also a powder material within ... | 11/06/1984 |
| 4432675 | Pneumatic feed control for pneumatic seeder and the like The invention relates to improvements in air seeders, namely agricultural implements which utilize air pressure to move particulate material such as seeds from a feed zone to a dispersal or planting zone. The particulate material is normally fed from a ho... | 02/21/1984 |
| 4412762 | Pneumatic unloading of particulates A substantially continuous flow is attained in the unloading of a bulk particulate from a storage hopper by monitoring the pressure differential between the hopper and a point in the discharge line downstream of the hopper outlet. The pressure differentia... | 11/01/1983 |
| 4381898 | Device for the controlled feeding of powder material The invention contemplates a powder-feeding system for gas-propelled delivery of a powder to be controllably supplied, as to a flame-spraying gas torch or to a transferred-arc plasma torch. A fluidizing chamber receives (a) fluidizing-gas flow from below ... | 05/03/1983 |
| 4368678 | Injection of pulverized material into a pressurized furnace A fuel stream comprising a combustible pulverized material entrained in a carrier gas is formed and subsequently injected into a blast furnace with the hot blast air without any detrimental effect on the hot air blast and with minimum energy consumption. ... | 01/18/1983 |
