...Chester Carlson was a patent agent who tired of having to make multiple copies of patent applications using the only duplication method available at the time: carbon paper. In 1959 he came up with a new copying system and took it to IBM for evaluation. The "experts" at IBM determined potential sales to be only 5,000 units because people wouldn't want to use a bulky machine when they had carbon paper. Carlson's invention was the xerography process, the company founded on the system is Xerox.
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| Number | Title | Issue Date |
| 7963728 | Method and apparatus for powder delivery system A flexible bag (10) has an open top configured and arranged for receiving one or more feed tubes (32). The bag (10) preferably includes at least one attachment member (20) adapted and configured to be secured to a support member (47 | 06/21/2011 |
| 6979166 | Vacuum wand assembly for extracting a product from a container The subject invention relates to a vacuum wand assembly for extracting a product from a container, especially a non-self supporting container that collapses as the product is extracted. The assembly includes a wand for extending into the container and for withdrawin... | 12/27/2005 |
| 6846134 | Rotating conveyor for the evacuation of metal shavings resulting from machining operations A rotating conveyor for the evacuation of metal shavings resulting from mechanical work processes, comprising a collecting container (2) in which a motorised basket (4) is rotating, above whose bottom wall (5) the lower end (12) of an eva... | 01/25/2005 |
| 6821060 | Jet pump system for forming an aqueous oil sand slurry As-mined oil sand is crushed to −5 inch by a sequentially arranged pair of double roll crushers. The crushed oil sand is fed into a hopper feeding a jet pump. Water or recycled slurry is fed under pressure as motive fluid to the jet pump. The motive fluid jet(s) p... | 11/23/2004 |
| 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 |
| 6454141 | Non-pressurized dry powder dispensing apparatus An apparatus and a method for dispersing and feeding dry powders without using pressurized air are disclosed. The apparatus comprises a sample holder, a suction probe, a vacuum means and a positional means. The suction probe is positioned above dry powder... | 09/24/2002 |
| 6398462 | Powder transfer apparatus having powder fluidizing tube An apparatus for emptying powder from a container, such as an original shipping box includes a support having a vibrating unit for loosening the powder within the container. A powder pick-up tube and an attached powder pump draw powder from the container ... | 06/04/2002 |
| 6383301 | Treatment of deagglomerated particles with plasma-activated species This invention relates to an improved apparatus for treating the surface of particles by plasma-activated gas species to modify the particle surfaces.... | 05/07/2002 |
| 6158926 | Suction system for urban wastes and for recyclable materials A suction system for urban wastes and for recyclable materials comprising a motorized transport means (10) suitable to receive urban wastes and/or recyclable materials placed in a container (36) or left on the ground, wherein said transport means (10) is ... | 12/12/2000 |
| 6155752 | Powder spray coating equipment The invention concerns powder spray coating equipment comprising an air divider (16) to adjustably divide a total-air flow (6, 14) into a conveying-air flow (54, 57, 70) and a supplemental-air flow (56, 84, 86) in such manner that, when adjusting for a la... | 12/05/2000 |
| 6056483 | Powder coating material feeding apparatus In a powder coating material feeding apparatus, a lid section is mounted onto an opening of a metal drum containing powder coating material, and a support unit holds the metal drum in its upside-down or tilted position. An air distribution panel supplies ... | 05/02/2000 |
| 6036407 | Solids conveying system for compacted, friable solids that can not be pushed or compressed A gas conveying system capable of conveying a solid material without pushing or compressing the solid material. The system comprising: at least one conduit assembly comprising a conduit, a lance assembly disposed about a first end of the conduit which is ... | 03/14/2000 |
| 6036408 | Extraction apparatus for bulk material containers An improved extraction apparatus for bulk material containers, in particular for bins (1) filled with a pourable bulk material (3), comprises a suction head which can be lowered onto the bulk material (3). According to the improvement, provision is made f... | 03/14/2000 |
| 5964420 | Particulate applicator attachment for a leaf blower A new particulate applicator attachment for a leaf blower for applying particulates such as powdered pesticides to a lawn or garden. The inventive device includes an elongate main tube having opposite intake and discharge ends. Each of the ends of the mai... | 10/12/1999 |
| 5944455 | Lifting assembly for use with a discharge device for flowable granular material In the case of a device for the discharge of flowable material from flexible and more particularly sack or bag like containers through the use of a discharge aspiration device adapted to be introduced from above into the container, lifting tackle is provi... | 08/31/1999 |
| 5873680 | Method and injector arrangement for conveying pulverulent material An injector arrangement for use where particulates are to be entrained in a gas transport medium. The apparatus has a nozzle discharging conveying gas and a secondary, dosing, gas flow provided from an annular passage. This secondary flow envelopes the co... | 02/23/1999 |
| 5749684 | Particulate material feeding apparatus and process An apparatus and process feed at a controlled rate a free-flowing particulate material entrained in a carrier gas. The apparatus includes a gastight closed supply vessel for holding a supply of the particulate material and a riser tube inside the supply v... | 05/12/1998 |
| 5690450 | Apparatus for transporting powder coating material from a box-shaped container A bulk unloader for emptying powder from an original box-shaped shipping container has a support platform with a cradle angularly mounted thereto for holding the container in a tilted position so that one of its corners is lower than the others. A vibrato... | 11/25/1997 |
| 5622458 | Air lift pump for wet particulates An air lift pump for wet particulates has a plurality of transport tubes and air injectors disposed in a central column for transporting particulate matter from a lower elevation to a higher elevation. The central column has a closed top and an open botto... | 04/22/1997 |
| 5518344 | Apparatus for transporting powder coating material from a box-shaped container A bulk unloader for emptying powder from an original box-shaped shipping container has a support platform with a cradle angularly mounted thereto for holding the containers in a tilted position so that one of its corners is lower than the others. A vibrat... | 05/21/1996 |
| 5429278 | Portable garden powder duster A portable garden powder duster for applying dusting agent to garden plants is provided. The powder duster comprises an air blower, an air-flow receiving tube removably attached to the air-blower and a dusting agent container removably attached to the bot... | 07/04/1995 |
| 5392996 | Pesticide duster attachment for portable blower A duster attachment includes a closed bottom, upwardly opening cylindrical container. An upright vacuum tube has its lower end secured through the bottom of the container and includes an upper end provided with variable air inlet structure. A closed top a... | 02/28/1995 |
| 5382117 | Apparatus for holding a powder container The invention concerns apparatus for holding a bag containing powder so that powder can be removed through a suction line. The invention enables a bag-shaped powder container to be held in a position permitting the powder to be sucked out by the suction l... | 01/17/1995 |
| 5226567 | Garden powder duster A portable garden power duster for applying dusting agent to garden plants is provided. The power duster comprises an air blower; an air-flow receiving tube removably attached to the an air blower which contains an air baffle attached to the bottom of the... | 07/13/1993 |
| 5006019 | Pneumatic pickup probe A pneumatic pickup probe or wand, for picking up a dry flowable material from a container and introducing that material into a vacuum conveyor system, constitutes an elongated unitary pickup tube having a plurality of axially displaced air control holes n... | 04/09/1991 |
| 4971482 | Pneumatic system and method for conveying of sand The present invention relates to a system and method for conveying sand at offshore locations with the assistance of compressed air. The sand is transferred from sand storage tanks positioned on a vessel to a sand aeration vessel under pressure and when n... | 11/20/1990 |
| 4802796 | Pressure-reducing device for particulate material A pressure-reducing device in a pneumatic transport system for particulate material having a first and a second transport channel which are arranged so that, at the transition between the two channels, the gas/particulate flow is bent through 180°. After... | 02/07/1989 |
| 4790692 | Arrangement for transporting disintegrated particulate solids The invention relates to an arrangement for transporting disintegrated solid particles, in which the particles are transported by a quantity of air placed under an over pressure. The weight ratio of the particle/aix mixture lies within a range at which pa... | 12/13/1988 |
| 4773797 | Device for loading containers for particulate materials and the use thereof A device for loading containers that are open or can be vented, containers for fine particulate materials, said device being part of a pneumatic conveyance system, in particular such a system using dense layer transportation, where the said device compris... | 09/27/1988 |
| 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 |
| 4746250 | Device for introducing a dosed quantity of powder into a carrier gas stream An apparatus for the dosed incorporated of a dustlike substance into a carrier gas stream is described; said apparatus operates on the basis of a perforated disc which rotates in the dust, the passage holes of said disc are filled with the dust and are bl... | 05/24/1988 |
| 4708534 | Particle feed device with reserve supply Apparatus for feeding powder particles into a pressurized gaseous stream comprising a feed chamber having a helical particle feed channel, a reserve powder supply chamber above the feed chamber and a feed tube extended from the reserve powder supply chamb... | 11/24/1987 |
| 4701185 | Process for separating fly-ash Process for depressurizing fly-ash being contained in a first vessel comprising a pressurized gas by expanding the gas through at least one long and narrow pipe. The inlet of the pipe(s) dips under the upper level of the fly-ash in the first vessel. The o... | 10/20/1987 |
| 4543018 | Two section deep sump solids slurry recovery system A sump for the deposit and removal of particulate material mixed with a fluid, comprises a first and second reservoir formed in the surface of the earth. The first and second reservoirs each have a top at the surface of the earth and extend from the surfa... | 09/24/1985 |
| 4505623 | Apparatus for transferring powder from bulk drums Apparatus for emptying a drum of powdered material. The drum is mounted on a support at a 45° angle to vertical. The drum has a cap having two holes and sleeves projecting into the drum from the holes. The sleeves are aligned with the bottom corner of th... | 03/19/1985 |
| 4449880 | Tiltable platform A load supporting apparatus includes a base, and a platform adapted to support the load is pivotally supported on the base for movement between first and second positions, the platform becoming increasingly tilted as it moves from the first to the second ... | 05/22/1984 |
| 4265572 | Process for the pneumatic transfer of a pulverulent material Process for the pneumatic transfer of a pulverulent material contained in a cylindrical container, wherein it comprises the introduction, via a sealed passage located in the upper part and in the axis of the container, of a suction member which is movable... | 05/05/1981 |
| 4253782 | Hopper with floating capacity A hopper comprises a suction conduit and a pressure conduit each connected to a pump for discharge of the hopper contents, the suction conduit being horizontal and communicating at its free end via a control valve with water outside the hopper, a pluralit... | 03/03/1981 |
| 4236852 | Apparatus for the loosening and lifting of aerated pulverized material at an increased pressure from a silo An upright storage silo for fluid materials, such as comminuted, powdered and granulated livestock feed, flour, grain, spices, sugar, cement, fertilizer and similar, has a mixing chamber centrally located within the silo; a discharge chamber within the si... | 12/02/1980 |
| 4088373 | High volume pneumatic tank A high volume pneumatic tank for vertical installation in a ship, or the like, having a pump, or air compressor, for selectively providing a supply of air for unloading pulverulent material aerating and pressurizing the contents of the tank including the ... | 05/09/1978 |