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 |
| 7326266 | Coalescing type filter apparatus and method A coalescing type gas filter includes a filtering element enclosed in an inner chamber which is housed in an outer chamber and a drain device to simultaneously drain accumulated liquid in both the inner chamber and the outer chamber. The drain device contains a pres... | 02/05/2008 |
| 7323028 | Air intake filter screen assembly A filter screen assembly for use with an air intake structure, the structure including a face within which is formed an air intake opening. The filter screen assembly includes a screen having a flexible mesh material and an outer perimeter edge. The perimeter edge i... | 01/29/2008 |
| 7077336 | Information-displaying unit The present invention refers to an information-displaying unit (1) which has a body of a determined geometrical shape internally with an illumination system having in the narrower portions thereof (12) an arrangement for installation of water atomizing... | 07/18/2006 |
| 7048783 | Vacuum cleaner air/liquid separator A vacuum cleaner air/liquid separator is provided according to the invention. The separator includes an offset air/liquid airflow inlet for receiving an air/liquid airflow, with the offset air/liquid airflow inlet possessing a width and a height. The separator furth... | 05/23/2006 |
| 7033421 | Sorption cooling for handheld tools A device is disclosed for cooling motors that generate heat during operation. The device is more specifically directed to handheld power tools where long operation can lead to overheating of the handheld tool. ... | 04/25/2006 |
| 6090183 | Method and apparatus for processing exhaust gas produced during manufacturing of semi-conductor devices A method for processing an exhaust gas produced during manufacturing of semiconductor devices including the steps of introducing a thermally disintegrable or thermally oxidizable exhaust gas produced during manufacturing of semiconductor devices into a pr... | 07/18/2000 |
| 5972081 | Negligible pressure drop absorber Negligible pressure drop absorber has a hollow housing having an entrance opening and an exit opening, and an absorber unit including a plurality of layers of an absorbent material arranged substantially parallel with one another to form a passageway for ... | 10/26/1999 |
| 5837020 | Room air cleaner A portable air cleaner designed to remove particles and unwanted gases from a room to provide for a healthier and cleaner environment. The portable air cleaner includes a high air volume circulating design and operates quietly and efficiently. The air exh... | 11/17/1998 |
| 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 |
| 5713972 | Particulate matter filtration system A Particulate Matter Filtration System, finding application for the filtration of particulate matter which is present in the combustion exhaust gases of internal combustion engines in general, manufacturing processes resulting in the generation of industr... | 02/03/1998 |
| 5641343 | Room air cleaner A portable air cleaner designed to remove fine particles and unwanted gases from a room to provide for a healthier and cleaner environment. The portable air cleaner includes a high air volume circulating design and operates quietly and efficiently. The po... | 06/24/1997 |
| 5536298 | Method of treating fine particle dust in manufacturing process of semiconductor elements and apparatus therefor In a method of treating a fine particle dust in a manufacturing process of semiconductor elements wherein the fine particle dust is separated and collected from an air which includes the fine particle dust produced from a source of generating the fine par... | 07/16/1996 |
| 5290331 | Localized clean air system A localized clean air system for operating theaters and a method of supplying clean air to a localized region in such situations. A fan is connected to a delivery head, which has an outlet for directing inlet clean air to the localized region in a particu... | 03/01/1994 |
| 5266090 | Multi-sided air filter with wraparound filter media A filtering unit having multiple filtering sides uses one or more filtering elements wrapped around an inner housing containing a blowing device. Outer housing panels are disposed about the filtering elements. The filtering elements and outer housing pane... | 11/30/1993 |
| 5188644 | Filter, bag and method A comprehensive particulate filtering unit in which the filter includes bag like elements secured to infuser members which surround a blower and motor, designed to operate and be used as a compact portable unit.... | 02/23/1993 |
| 5049170 | Filter assembly for gas analyzer This invention is a filter assembly for preparing gases for an exhaust gas analyzer. A single housing includes at least three filter cavities, an inlet passage and two outlet passages. A coarse filter for filtering particlate matter and for condensate con... | 09/17/1991 |
| 4941900 | Apparatus and method for gas-liquid separation and filtration An air filtering device and related method for the removal of liquids and particulate matter from an air stream such as may be used in an aircraft environmental control system. The invention is comprised of an inertial separator and a combination coalesce... | 07/17/1990 |
| 4692175 | Two-stage precoalescer unit Two-stage precoalescer unit for filtering, coalescing and separating from contaminated compressed gas loose oil and water in a first stage and oil and water aerosol or vapor in a second stage, the coalescers of the first and second stages being mounted in... | 09/08/1987 |
| 4519819 | Precoalescer unit A precoalescer unit for a twin tower assembly for decontaminating compressed gas the towers of which each contain a desiccant and under timer control of individual solenoid valves alternately receive contaminated gas and individually cycle between deconta... | 05/28/1985 |
| 4487618 | Airline vapor trap An in-line trap for removing water and/or oil vapor from a compressed airline which includes a manifold having spaced coaxial inlet and outlet openings and a hollow base suspended from the manifold. A first cartridge extends between the manifold inlet and... | 12/11/1984 |
| 4265647 | Air prefilter An air prefilter is disclosed for use with internal combustion engine air filters of the type having replaceable filter elements. The prefilter has a perforated sleeve connected between the usual intake openings and the filter element of the conventional ... | 05/05/1981 |
