Did You Know...
...that to encourage use of his new invention, the shopping cart, market owner Sylvan Goldman hired fake shoppers to push the carts around his store in Oklahoma City? Seems his customers were reluctant to give up their hand-carried baskets.
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| Number | Title | Issue Date |
| 7410519 | Sandwich filter block A sandwich filter device including a block body and an insert held in the block body. The insert and the block body each have a passage for gas flow through. Positioned across the insert passage is a filter for removing contaminants from a gas stream. ... | 08/12/2008 |
| 7390340 | Filtration apparatus A filtration apparatus for use in a system containing a gas or vapor to be cleaned. The apparatus has at least one housing for a filter that removes contaminants from a gas or vapor. The housing contains an inlet portion and an outlet portion in association with val... | 06/24/2008 |
| 7338552 | Process and device for separating oil and volatile organic components from pressurized gases of a compression system A process and device for separating oil and volatile organic components from pressurized gases of a compression system in which, before oxidation-catalytic separation, a physical separation is performed to protect the oxidation-catalytic separator against a large am... | 03/04/2008 |
| 7331083 | Lighted wand assembly with remote light source A floor cleaning apparatus includes a housing, a dirt collector, a suction generator, a wand, a hose, a light source, a light director and a light transmitter. The light source is provided on the apparatus at a first point while the light director is provided on the... | 02/19/2008 |
| 7320717 | Industrial scale honeycomb type dust collector A dust collecting filter such as a honeycomb-type industrial filter for the industrial filtering of gas containing solid particles is provided. The filter includes a plurality of collateral inlet and outlet channels separated by shared filtering boundaries. The inle... | 01/22/2008 |
| 7314501 | Methods and device for filtration of exhaust gases for a diesel engine with a filtration surface which is variable by means of controlled obstruction A method in which all or some of the particles contained in the exhaust gases of a diesel engine are retained on particle filters and burnt due to the action of a combustion catalyst. At least a part of the particle filters are obstructed when the temperature θg of... | 01/01/2008 |
| 7300482 | Particle separation apparatus Particle separation apparatus comprises a cyclone particle separating means, a particle collecting chamber and a fan driven by an electric motor for drawing particle laden air into and through the apparatus. A valve is provided, upstream of the suction fan driving m... | 11/27/2007 |
| 7287301 | Utility vacuum A utility vacuum that may be configured to employ a disposable bag or removable and reusable container for the collection of dirt and debris that are drawn into the utility vacuum. The utility vacuum may employ one or more movable legs that are movable between an ex... | 10/30/2007 |
| 7288137 | Particulate trap A particulate trap has a plurality of filters and an air distributor. The air distributor has a first flow member and a second flow member. Each of the first and second flow members have a plurality of openings to allow exhaust flow through the plurality of filters.... | 10/30/2007 |
| 7285149 | Oil separator for vehicle air system An oil separator for use in a vehicle air system includes a recycling valve for removing coalesced oil. The recycling valve may include a piston movable in a cylinder in response to a control air pressure to open the recycling valve and thus drain coalesced oil from... | 10/23/2007 |
| 7285150 | Dehydrating breather apparatus and method A dehydrator breather is provided that includes a vessel, a desiccant container, a valve housing coupled to the vessel, and a vent assembly coupled to the valve housing. The vent assembly includes screened ports disposed along a vertical axis of the vent assembly bo... | 10/23/2007 |
| 7223298 | Filter assembly for pipelines A filter assembly is disclosed for use in connection with the filtration of products transported via pipelines, including high pressure gas pipelines. The disclosed filter assembly is comprised of a plurality of filter modules, a series of valves, inlet and outlet p... | 05/29/2007 |
| 7201787 | Air cleaner and method of controlling operation thereof An air cleaner and method of controlling an operation of the same is disclosed. The air cleaner includes a cabinet having an inlet and an outlet; a filter assembly removing dust and smell particles from a room air; a fan; a sensor assembly sensing the composition of... | 04/10/2007 |
| 7186286 | Filter housing assembly with leak testable aerosol injection port A filter housing assembly having a leak testable aerosol injection port is a conduit coupled to an aerosol injection selectively traps aerosol port of the filter housing assembly after disconnecting an aerosol generator used to challenge a filter installed in the ho... | 03/06/2007 |
| 7160355 | Method and system for regenerating diesel particle filters A method of regenerating at least one diesel particle filter, in which exhaust gas is introduced through a supply line into the at least one diesel particle filter and is discharged from it through a discharge line, while heating of the exhaust gas flowing through t... | 01/09/2007 |
| 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 |
| 7122067 | Intake air filter for an internal combustion engine An intake air filter (1) is for an internal combustion engine, especially in a motor vehicle. The filter has a filter housing (2) having a raw air inlet (4), a pure air outlet (5), and an annular filter element (3) which is arrange... | 10/17/2006 |
| 7101412 | Self-sealing protection filter port A self-sealing protection filter port for gas masks prevents contamination of the inner-environment of the mask during exchange of filters and therefore increases safety. A biased valve closes the air inlet to the port when the protection filter is not installed. As... | 09/05/2006 |
| 7037359 | Grease containment system A device, system, and method for collecting grease on rooftop exhaust fans, comprising a gasket formed of sorbent material. The gasket is dimensioned for placement between an exhaust fan and a base for the exhaust fan. When placed between the exhaust fan and the bas... | 05/02/2006 |
| 6966935 | Filter cleaner for wet/dry vacuum A filter cleaner for wet/dry vacuum is provided for effectively cleaning filter cartridges employed for use in a class of vacuum cleaners commonly referred to as “wet/dry vacs.” The filter cleaner apparatus includes a cylindrical catch tank supported by a base. ... | 11/22/2005 |
| 6953490 | In-line oil separator An oil separator for use in a compressor for separating oil from refrigerant. The separator includes a discharge line having an inner surface, a structure in the discharge line forming an inlet and an outlet within the discharge line, wherein the inlet has a wider d... | 10/11/2005 |
| 6951581 | Spin-on desiccant cartridge with integral oil removal filter An air dryer assembly for removing moisture and oil from a compressed air system includes a desiccant material received in a shell for adsorbing moisture as compressed air passes therethrough. A coalescing element is disposed between an inlet and outlet for removing... | 10/04/2005 |
| 6938728 | Method and apparatus for attaching a resonance chamber to an air induction component An air induction assembly includes a tuning tube that is integrally formed with an air duct having a distal tube end extending into a resonance chamber. The air duct includes a shoulder portion that transitions into a base end of the tuning tube. The shoulder portio... | 09/06/2005 |
| 6932858 | Vortex tube system and method for processing natural gas A method and system for processing of natural gas in which a gaseous natural gas stream which is made up of a mixture of hydrocarbons is introduced into a vortex tube, forming a hot fluid stream and a cold fluid stream. The cold fluid stream is introduced into the u... | 08/23/2005 |
| 6887290 | Debris separation and filtration systems The invention provides a debris separation-filtration unit comprising a housing; an inlet that receives debris-laden air delivers the air in a tangential, centrifugal airflow-forming manner to the interior of housing; an inner shell that includes a number of airflow... | 05/03/2005 |
| 6878177 | Incubator having combined HEPA and VOC filter A controlled atmosphere incubator having an interior chamber adapted to be heated and humidified. An easily accessed blower is located within the gaseous environment of the incubator chamber and includes a HEPA filter and VOC filter readily replaceable by the user f... | 04/12/2005 |
| 6860915 | Oil separating device for crankcase gases of an internal combustion engine The invention concerns an oil separator (2) for crankcase gases of an internal combustion engine, comprising a preliminary separator (28), a cyclone separator (30), a fine separator (32) and, if necessary, a valve device (36) that ... | 03/01/2005 |
| 6827753 | Gas/liquid separation system A gas/liquid separation system includes a cyclone case, a gas outflow pipe including a flange, and a housing that accommodates a valve and is welded to a peripheral edge portion of an upper opening of the cyclone case. An upper opening of a cylindrical portion of th... | 12/07/2004 |
| 6811586 | Oil separating device for crankshaft gases of an internal combustion engine The invention concerns an oil separator (2) for crankcase gases of an internal combustion engine, comprising a preliminary separator (28), a cyclone separator (30), a fine separator (32) and, if necessary, a valve device (36) that ... | 11/02/2004 |
| 6797037 | Dehydrating breather apparatus and method A dehydrator breather is provided that includes a vessel, a desiccant container, a valve housing coupled to the vessel, and a vent assembly coupled to the valve housing. The vent assembly includes screened ports disposed along a vertical axis of the vent assembly bo... | 09/28/2004 |
| 6764536 | Sampling device with liquid eliminator An integrated sampling device with liquid eliminator is provided. The device includes a body with integrated valving. A liquid eliminator device is provided within the body and interposed in a flow path such that gas will pass through and liquid will not. The gas wi... | 07/20/2004 |
| 6736881 | Method and arrangement for cleaning pipe-shaped filter elements In a method and apparatus for cleaning pipe-shaped filter elements arranged in a housing including a separation wall dividing the housing into a clean gas space and a raw gas space into which the filter elements extend from the clean gas space through the separation... | 05/18/2004 |
| 6709478 | Engine crank case sampling system A gas separator system for providing contaminant-free engine crankcase gas to a gas analyzer. The system has an inlet member for receiving the crankcase gas from the engine and an oil separator for separating at least a portion of the contaminants from the crankcase... | 03/23/2004 |
| 6655335 | Small engine for power tools A small engine for outdoor power equipment wherein fuel is pumped to the engine's combustion chamber by a reciprocating piston. A desired rate of reciprocation is determined with the engine under load, e.g., with a grass trimmer cutting grass. Avoidance o... | 12/02/2003 |
| 6623631 | Filter assembly for vacuum filtration There is disclosed a vacuum filtration device for aqueous media that includes a hydrophilic tubular filter element in a cylindrical housing and at least one hydrophobic gas-permeable membrane, coupled with a gas bleed-off valve to allow the escape of air ... | 09/23/2003 |
| 6613116 | Grill assembly of cyclone dust collecting apparatus for vacuum cleaner A grill assembly of a cyclone dust collecting apparatus for a vacuum cleaner capable of preventing dust from being drawn to a vacuum-generating device even in a case that the vacuum cleaner operates when a sealing member is not assembled with a grill body... | 09/02/2003 |
| 6572924 | Exhaust system for vapor deposition reactor and method of using the same An improved exhaust conductance system for a CVD reactor includes two exhaust paths and a three-way valve controlling flow to the exhaust paths. The valve directs flow through a first exhaust conductance path when reactant gas passes through the reactor, ... | 06/03/2003 |
| 6572688 | Gas purification unit Gas is admitted to an in-container purification unit 202 via an inlet 212 located at or near the gas discharge end 220 of the unit. This feature is advantageous because it allows a liquefied gas container to be filled to a level above the second end of th... | 06/03/2003 |
| 6557591 | Bulk gas built-in purifier with dual valve bulk container An apparatus for delivering a gaseous product includes a horizontal container having inlet and outlet ports, an elongated hollow tube inside the container, a purifying medium inside the tube, inlet and outlet control means adapted to control delivery of t... | 05/06/2003 |
| 6547862 | Rotary phase separator with integral accumulator and outlet valve A rotary phase separator includes an accumulator and a liquid outlet valve to separate the phases of a liquid/gas mixture. The separator includes a housing defining a radial accumulator chamber and supporting a shaft, and a motor to drive the shaft for ro... | 04/15/2003 |
