Did You Know...
...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.
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| Number | Title | Issue Date |
| 7356980 | Automated method for packaging food An automated food processing system and method is provided that allows food to be dispensed, fried and packaged in a suitable container, which may be an individual portion-sized container. In one embodiment, the system includes separate automated modules for dispens... | 04/15/2008 |
| 7337594 | Food dispensing device and method An automated food processing system and method is provided that allows food to be dispensed, fried and packaged in a suitable container, which may be an individual portion-sized container. In one embodiment, the system includes separate automated modules for dispens... | 03/04/2008 |
| 7303776 | Automated food processing system and method An automated food processing system and method that allows food to be dispensed, fried and packaged in a suitable container, such as an individual portion-sized container. The system includes separate automated modules for dispensing, frying and packaging the food. ... | 12/04/2007 |
| 7226248 | Device for the continuous gravimetric metering and pneumatic conveying of pourable material Disclosed is a device for the continuous gravimetric metering and pneumatic conveying of pourable material which is conveyed across a given distance by a metering rotor (1) which is arranged in a pressure-proof manner in a housing (2) and is provided w... | 06/05/2007 |
| 7094004 | Apparatus and method for moving and placing granulate material A method and system are disclosed for moving and placing in hard to reach locations granular and other particulate material such as sand, gravel, earth and similar materials. The system includes an improved augar for moving the material and an improved rotary airloc... | 08/22/2006 |
| 7090098 | Metering and dispensing closure A metering and dispensing closure for a container wherein two rotatable disks rotate in conjunction with a stationary cap member to afford accurate measuring of a powder material and dispensing of it. The disks and the container cap afford a consistent measuring of ... | 08/15/2006 |
| 6960157 | Automated system and method for handling food containers An automated food processing system and method is provided that allows food to be dispensed, fried and packaged in a suitable container, which may be an individual portion-sized container. In one embodiment, the system includes separate automated modules for dispens... | 11/01/2005 |
| 6669410 | High pressure feeder having smooth pocket in rotor A high pressure transfer device has a rotor mounted in a housing for rotation with respect to inlet and outlet ports and having through going pockets. The pockets have interior surface configurations substantially devoid of nooks, crannies, and related fl... | 12/30/2003 |
| 6641336 | High pressure feeder rotor having conduits for pressure equalization A conduit extends laterally through a rotor of a high pressure feeder to relieve any unequal pressures acting on opposite ends of the rotor. The conduit allows slurry under extraordinarily high pressure at one end of the rotor, to flow laterally through t... | 11/04/2003 |
| 6616384 | High pressure feeder having smooth pocket in rotor A high pressure transfer device has a rotor mounted in a housing for rotation with respect to inlet and outlet ports and having through going pockets. The pockets have interior surface configurations substantially devoid of nooks, crannies, and related fl... | 09/09/2003 |
| 6468006 | High pressure feeder having restriction ramp in high pressure inlet A high pressure transfer device has a rotor mounted in a housing for rotation with respect to inlet and outlet ports and having through going pockets. The pockets have interior surface configurations substantially devoid of nooks, crannies, and related fl... | 10/22/2002 |
| 6203249 | Particulate objects conveying apparatus for conveying particles of a predetermined size A particulate object conveying device is provided, and the conveying device includes a stagnating portion. A rotor has an outer circumference having a plurality of grooves formed equidistantly about the outer circumference, the grooves being of a size and... | 03/20/2001 |
| 5915887 | Refinements in air-quality protection and seal control, in a particulate-material gun usable with silica fume Dust emission is controlled by a preferably short fill at the expulsion end of each chamber, and selective venting of residual pressure through the air-inlet end. This selective venting is accomplished through use of a novel seal or "pad" that has an exte... | 06/29/1999 |
| 5813801 | Dense phase particulate conveying system and method with continuous air leakage management A continuous dense phase conveying system and method regulates and modulates the volume of gas flowing at a low velocity within a material conveying pipe. In response to air volume leakage through a rotary airlock valve, a controller adjusts a flow contro... | 09/29/1998 |
| 5645379 | Material flow and air-quality protection, in a particulate-material gun usable with silica fume A rotary feed structure for a gunite-conveying machine includes a polymeric body to resist sticking of gunite even if the latter includes silica fume, and even if it has set. The body has chambers in a circle. Preferably the body is urethane, self-bonded ... | 07/08/1997 |
| 5538365 | Two-pressure, pneumatic conveying system for rod-like articles with partial air venting In a pneumatic filter rod conveying system a vent (12) is in the line (10) close to the distributor (2). This enables a relatively high pressure gradient to be established, with resultant high filter transfer rates at the distributor, without having exces... | 07/23/1996 |
| 5536118 | Apparatus for transferring rod-shaped articles from a supply into a pneumatic conveyor Apparatus for transferring rod-shaped articles from the outlet of a magazine for parallel articles into the inlet of a pneumatic conveyor wherein the articles are moved in the direction of their longitudinal axes comprises a rotary drum-shaped conveyor ha... | 07/16/1996 |
| 5511730 | Insulation blower having hands-free metered feeding The thermal insulation blower of the present invention is built around a vertically oriented air lock system. The insulation blower is capable of being configured for high delivery rates suitable for open area blowing and is capable of being reconfigured ... | 04/30/1996 |
| 5443162 | High capacity high pressure feeding The production capacity of a conventional high pressure feeder having a pocketed rotor with a slotted screen at the low pressure outlet port is significantly increased by constructing the screen so that its arcuate bars have a width much less than normal,... | 08/22/1995 |
| 5236286 | High pressure feeder split outflow for enhanced feeder efficiency A high pressure transfer device for feeding wood chips to a digester in the production of paper pulp has enhanced efficiency. A rotor having first and second sets of through extending conduits is mounted for rotation in a housing having first through four... | 08/17/1993 |
| 5209607 | Powder feeder apparatus This invention relates to an apparatus and process for feeding powder or dry solids catalyst into a flowing liquid stream. More particularly, the invention includes an apparatus which includes a novel purging device and means for isolating a metering mean... | 05/11/1993 |
| 5118224 | Mortar transport apparatus The invention relates to a mortar transport apparatus, consisting essentially of a rotor comprising cylindrical mortar transport chambers, the rotor being arranged between stationary sealing plates and being adapted to be driven by a motor, a feed hopper ... | 06/02/1992 |
| 5106239 | Precision powder hopper A precision powder hopper comprises a canister for storing particulate material and a rotatable carrier wheel that accurately meters small amounts of the material to a powder out port. The carrier wheel has slots therethourgh that receive definite quantit... | 04/21/1992 |
| 5051040 | Fluidized bed combustion system that is controllable under pressure A fluidized bed combustion system that can be operated or controlled under pressure is provided. To eliminate the erosion or abrasion to which heat exchangers located in a fluidized bed combustion chamber are subjected due to the flue dust contained in th... | 09/24/1991 |
| 4997318 | Apparatus for continuously conveying a powder in a gas flow An apparatus for continuously conveying a powder in a gas flow has a configuration of the bottom end of the supply reservoir in the form of a funnel-shaped guide surface converging towards a pointed end. This surface is intersected by a vertically extendi... | 03/05/1991 |
| 4872786 | Solid particulate aerosol generator An apparatus and a method are provided for producing a solid particulate aerosol which is sufficiently precise in concentration to be suitable for testing HEPA filters. The apparatus continuously delivers a measured quantity of a solid particulate materia... | 10/10/1989 |
| 4863076 | Particulate material feeder utilizing vibration and aeration Apparatus and method for feeding particulate material from a hopper into a process stream at a controlled flow rate. A rotating wheel with spaced apart pockets is vibrated to densify the particulate material in the pockets. A stator contacts and covers a ... | 09/05/1989 |
| 4789569 | Process and device for metering pulverulent materials The invention is in a pneumatic powder ejector comprising a suction stage and an injection stage. The suction stage includes a suction chamber (16), a venturi (14) communicating a primary gas to the suction chamber and a lateral suction input (18) offset ... | 12/06/1988 |
| 4781494 | Air-assist accumulating and transfer unit for an electronic device test handler An accumulating and transfer unit for handling electronic devices such as integrated circuits (ICs), especially surface mounted devices (SMDs). The unit includes guideways mounted circumferentially around a central shaft between two end plates and is incl... | 11/01/1988 |
| 4780028 | Solids feeder A feeder is disclosed for introducing slug of a particulate material into a gas stream. The feeder is characterized by a valve member positioned in a housing and movable from a first position to a second position and from a second position to a third posi... | 10/25/1988 |
| 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 |
| 4705433 | Pneumatic transportation system with a material feeder A pneumatic transportation system for transferring particulate material from a storage container at one pressure level to a receiving unit at another pressure level (e.g. in a feeding system for bed material to a combustion chamber of a PFBC plant). The t... | 11/10/1987 |
| 4682915 | Method and apparatus for continuous gravimetric metering and pneumatic feeding of pourable material A method for operating an apparatus including a rotor provided with laterally closed feeding pockets and tightly arranged in a housing for rotation. The housing is provided with a charging station and a discharging station and is hinged for pivotal moveme... | 07/28/1987 |
| 4681484 | Method of and apparatus for conveying powdered or granular material A rotor (1) of a machine for spraying concrete, mortar or a refractory lining material comprises conveying chambers (11') arranged concentrically around its axis, and delimited by cylindrical walls (11) of a porous, air-permeable material, the inside of t... | 07/21/1987 |
| 4661024 | Method and apparatus for continuous gravimetric metering and feeding of pourable material A method for operating an apparatus for continuous gravimetric metering and feeding of pourable material conveyed by a conveyer through a metering path, the conveyer including a rotor provided with conveyer pockets, having an essentially vertical axis and... | 04/28/1987 |
| 4646943 | Apparatus for continuous gravimetric metering and feeding of pourable material The apparatus includes a rotor mounted in and sealed in a housing for rotation about a vertical axis and including a plurality of pockets. Between the peripheral outer side wall of the rotor and the cylindrical inner surface of the housing there is an int... | 03/03/1987 |
| 4618294 | Concrete feeder apparatus An improved concrete apparatus is disclosed herein which is particularly well suited for a wide variety of applications wherein it is necessary to supply a granulated or powdered material in either wet or dry form to a remote worksite. The apparatus of th... | 10/21/1986 |
| 4560307 | Insulation blower A hopper cylindrical about a vertical axis has an agitator with blades rotating near the bottom of the hopper, not only to agitate insulation but also to move it through a hopper outlet opening into an airlock having a horizontal shaft and radially spaced... | 12/24/1985 |
| 4528848 | Device for the continuous gravimetric metering and pneumatic conveyance of pourable material A device for continuous, gravimetric metering and pneumatic conveying of pourable material provides that a material stream is conveyed over a measuring path while charging a load measuring device and the product of moment load and conveying speed is forme... | 07/16/1985 |
| 4516887 | Feeder deflection compensation A high-pressure transfer device, utilizable with wood chips or particulate material, includes low-pressure inlet and outlet ports, with low-pressure shoes associated therewith, and high-pressure inlet and outlet ports with high-pressure shoes associated t... | 05/14/1985 |
