Reward Candy Dispenser for Personal Computers
A personal computer peripheral, battery powered reward candy dispenser which immediately presents students with a single candy for each problem completed correctly.
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| Number | Title | Issue Date |
| 7727295 | Decentralized oil mist collection system An oil mist collection system for a plurality of machine tools each having a coolant system directing coolant at the cutting tools and collecting coolant and returning the same to a filtration system includes an oil mist collector at each station collecting oil from... | 06/01/2010 |
| 7637974 | Active carbon coated filter element for preventing the leaking of hydrocarbons An active carbon coated filter element is proposed for preventing the issuance of hydrocarbons from an opening. It includes a medium containing active carbon, which is of substantially planar shape and has a frame. The frame is provided with sealing lips on at least... | 12/29/2009 |
| 7387652 | Emergency bio-filter A portable filter assembly for providing filtered air to an enclosed space includes a housing having an exhaust port connected to the enclosed space, an internal air intake port connected to the enclosed space, and an external air intake port connected to the outsid... | 06/17/2008 |
| 7357043 | Chemical trace detection portal based on the natural airflow and heat transfer of vehicles A portal is provided with a detector for detecting trace amounts of substances of interest that may be retained on the surface or interior of a vehicular subject. The portal relies upon the continuous process by which microscopic flakes of dust, dirt, pollen, and ot... | 04/15/2008 |
| 7354473 | NBC-building protection system and method A combined building air-conditioning unit and NBC protection system, containing an enclosed space housing a building air-conditioning unit and further including a plurality of chambers, a first chamber having an ambient air inlet port, one prefilter and a blower for... | 04/08/2008 |
| 7311741 | Device for separating dust and dirt out of flowing media The invention describes a device for separating dust and dirt out of flowing media. A curved flow path (1) is imposed on the flow (21), and heavy foreign bodies are separated out of the main flow by centrifugal force. The partial stream required to car... | 12/25/2007 |
| 7163626 | Device for treating a gas/liquid mixture The present invention relates to a device for treating a gas/liquid mixture, comprising: an inlet opening for the mixture; an outlet for the mixture located downstream; rotating means arranged in the tube for setting the mixture into rotating movement; one or more o... | 01/16/2007 |
| 7150778 | Recirculation jacket filter system The present invention is a system and method for improving the useful life of sorbent beds, such as activated carbon filter beds. It is known that breakthrough in carbon filter beds first occurs at the low gas velocity regions of the filter bed, i.e., at the filter'... | 12/19/2006 |
| 7141786 | Particle sampling preconcentrator An apparatus is provided for identifying trace amounts of substances of interest in an air flow. The apparatus includes an inlet for receiving the air flow and an outlet for exhausting major portions of the air flow. The outlet is offset from the inlet. A porous imp... | 11/28/2006 |
| 7131165 | Upright vacuum cleaner with cyclonic airflow A vacuum cleaner includes a first housing defining a cyclonic airflow chamber and a second housing defining a main suction opening that is in communication with an inlet of the cyclonic chamber. A suction source has a suction airstream inlet in communication with an... | 11/07/2006 |
| 7086119 | Dust collecting unit of vacuum cleaner A dust collecting unit for a vacuum cleaner is provided. The dust collecting unit includes a dust separating chamber with an air inlet formed on an outer surface thereof and an air outlet formed on one side thereof, a main dust collecting chamber formed in the dust ... | 08/08/2006 |
| 7070645 | Process and apparatus for separating two phases from each other The invention relates to a method and apparatus for separating two phases from each other. According to the invention, a stream made up of at least two phases is directed to a separation apparatus, which comprises a separation container (25) and cyclones (... | 07/04/2006 |
| 7047594 | Cyclonic vacuum cleaner A cyclonic vacuum cleaner having a simple structure with low airflow leakage and excellent maintainability despite its long suction passage. A dust-collecting portion 11 includes a cyclonic portion 14 which is approximately cylinder-shaped, having a bo... | 05/23/2006 |
| 7023339 | Transportable security portal for screening potential terrorists The security portal (10) is dimensioned to be readily mounted and transported on a trailer (54) alone as a single security portal (10) or with a plurality of security portals to provide screening for a short term, high security event. The portal... | 04/04/2006 |
| 6994740 | Cyclonic separating apparatus including upstream and downstream cyclone units The invention provides cyclonic separating apparatus comprising an upstream cyclone unit and a downstream cyclone unit, the upstream cyclone unit including at least one cyclone having a first end and a second end, and the downstream cyclone unit including at least o... | 02/07/2006 |
| 6979360 | Apparatus and process for preventing coke accumlation in a centripetal separator In a cyclone separator used for separating solids from gases, we discovered placing at least one opening in a lateral surface of a gas outlet conduit on a side facing away from an inlet to the cyclone separator prevents coke deposits from forming thereon. A pluralit... | 12/27/2005 |
| 6905528 | Conveying air filtration system An arrangement used for filtering out conveying air when supplying fiber material to a processing machine is provided. The arrangement has an essentially vertical filling chute for the fiber material, the chute having an upper intake opening and a lower exit opening... | 06/14/2005 |
| 6901625 | Dust collection unit for use in vacuum cleaner and main body of vacuum cleaner having the same The present invention relates to a dust collection unit for use in a vacuum cleaner. According to the present invention, there is provided a dust collection unit for use in a vacuum cleaner which comprises a cylindrical casing in which air introduced through an inle... | 06/07/2005 |
| 6852147 | Apparatus and method for reduction of gases emitted from a cooling tower A gas reduction apparatus 12 is provided for reducing the amount of gas 15 emitted from a cooling tower 10 into the atmosphere. The apparatus 12 in accordance with the principles of this invention includes a first air conduit 13 wh... | 02/08/2005 |
| 6790249 | Apparatus and method for screening people and articles to detect and/or decontaminate with respect to certain substances Improvements are provided to enable an air-curtain portal to be used for the triage and decontamination of persons who may have been exposed to toxic gas vapour or particulate material. ... | 09/14/2004 |
| 6752845 | Apparatus for separation of a liquid from a multiphase fluid flow An apparatus for separation of a liquid from a multi-phase fluid flow flowing through a pipeline, wherein the fluid flow is set in rotation so that it is separated into a central zone (5) essentially containing gas, and an outer annular zone (6) essent... | 06/22/2004 |
| 6706095 | Cyclonic separating apparatus Cyclonic separating apparatus (10) comprises a cyclone body (12) having an inlet (16) for introducing dirt-laden air into the cyclone body (12) in a tangential manner. A central outlet (18) is provided for conducting cleaned air ou... | 03/16/2004 |
| 6423124 | Device for regulating a flow rate in an air-liquid centrifuge separator The device for regulating a flow rate of an air-liquid centrifuge separator includes a gas outlet pipe, an outlet pipe for separated liquids and an inlet pipe through which a fluid to be separated enters the separator. The device includes a by-pass pipe, ... | 07/23/2002 |
| 6375697 | Apparatus and method for screening people and articles to detect and/or to decontaminate with respect to certain substances A walk-through portal or other enclosure is provided for at least one of detection of a predetermined substance on a subject and decontamination of a subject from a predetermined substance, the subject being either a person or, for other type of enclosure... | 04/23/2002 |
| 6372025 | Particulate control systems incorporating electrostatic precipitators A particulate control system which includes a collector such as an electrostatic precipitator (ESP) is improved by incorporation of a collector, such as an electrostatically enhanced separator (EES) connected parallel with the collector and wherein the ou... | 04/16/2002 |
| 6368389 | Method for separating vaporous phthalic acid anhydride from a gas stream Phthalic acid anhydride is recovered from a gas stream containing phthalic acid anhydride vapors by passing the gas stream upwardly through a vertical tube so that the gases expand at the orifice at the upper end of the tube and mix with granules entraine... | 04/09/2002 |
| 6328801 | Method and system for recovering and recirculating a deuterium-containing gas Provided is a novel method of and system for recovering and recirculating a deuterium-containing gas. According to the inventive method, a deuterium-containing feed gas is introduced into a chamber. An exhaust gas containing deuterium is removed from the ... | 12/11/2001 |
| 6202576 | Process for recycling fine-particle solids discharged from a reactor vessel with a gas In a process for recycling fine-particle solids (4) discharged from a reactor vessel (1) at a discharging position of the reactor vessel (1) by means of a gas, at a recycling position (16) of the reactor vessel (1), the solids (4) are separated in a solid... | 03/20/2001 |
| 6176900 | Method and device for treating of a gas/liquid admixture Method and device for treating a gas/liquid mixture, the device comprising: an inlet for infeed of the mixture; a flow element placed in the line of the inlet and having one or more swirling members to cause turbulence of the mixture; an outlet placed in ... | 01/23/2001 |
| 5863316 | Recirculating fume scrubber system A recirculating fume scrubber system in which fume is evolved from an aqueous bath in a process vessel, such as an HCl pickling tank, and the evolved fume is scrubbed with water and then the scrubbed gas is divided into two portions, one of which is relea... | 01/26/1999 |
| 5858071 | Water-purifying apparatus A water-purifying apparatus, for reducing the radon content of radon-contaminated water, includes a reactor tank for treating the radon-contaminated water, a radon-releasing structure arranged in the upper part of the reactor tank to receive water from a ... | 01/12/1999 |
| 5800597 | Integral coalescer filter-membrane device to provide a filtered gas stream and system employing such device An integral coalescer filter-membrane device to provide clean sample gas to gas analyzers. The device includes a housing, an inlet port for feed gas, an outlet port to withdraw clean sample gas essentially free of entrained liquids, such as water, and par... | 09/01/1998 |
| 5800578 | Air separation system including a tangential separator and a pneumatic relay conveyer A separating system for separating material transported by air utilizing apparatus having a tangential inlet for a stream of air and entrained material, a bottom material exit, a boundary wall air exit and a central interior air exit. Each air exit includ... | 09/01/1998 |
| 5567228 | System for cooling and cleaning synthesized gas using ahot gravel bed A method and apparatus for treating synthesized gas ("syngas") comprises introducing the syngas into a lower portion of a vessel. The syngas flows in the lower portion through a static regenerative hot gravel bed and into an upper portion of the vessel co... | 10/22/1996 |
| 5472463 | Pressure side integrated air filter and filtering networks for engines A pressure side integrated air filter assembly for a turbocharged engine includes an air filter carrier which is designed and arranged to receive an air filter element and which is adapted to mount to the intake manifold of the turbocharged engine. The ai... | 12/05/1995 |
| 5466271 | Pre-filter with rotating nozzle A pre-filter for removing lint particles from an air stream entering a filter system wherein an enclosed housing has an air inlet for receiving particle containing air from a remote source and an air outlet in communication with a filter system, a screen ... | 11/14/1995 |
| 5180486 | Potential flow centrifugal separator system for removing solid particulates from a fluid stream Solid particulates are removed from a solid particulate-laden fluid stream by passing the solid particulate laden fluid stream into a potential flow centrifugal separator which splits the potential solid particulate-laden fluid stream into a clean fluid s... | 01/19/1993 |
| 5009684 | Multiple cyclone separator A purification unit for separation of solid particles from gases comprises at least one group of a plurality of flow cylinders arranged in a common chamber. Each flow cylinder has a fixed rotary head for setting incoming gas in rotary motion, an outlet di... | 04/23/1991 |
| 4741884 | Process and apparatus for removing H2 S from gas streams A gas stream containing CO2 and H2 S is contacted with an alkanolamine in a contacting zone. The rich solution is then selectively stripped in a stripping zone to produce a gas stream containing a higher CO2 :H2... | 05/03/1988 |
| 4734105 | Process and device for the removal of solid or liquid particles in suspension from a gas stream by means of an electric field A method and device for removing solid or liquid particles contained in suspension in a gas stream by an electric field, wherein the gas stream flow is directed past ion sources which simultaneously act as field electrodes. The suspended particles are the... | 03/29/1988 |