Did You Know...
...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 |
| RE40407 | Method and apparatus for mixing fluids A method for entraining and mixing gas with liquids within a conduit or drop structure, comprising the channeling of one or more liquid flows into spiral flows of predetermined radius (radii), reducing the predetermined radius (radii) to increase the centrifugal for... | 07/01/2008 |
| 7311742 | Vacuum cleaner An electric vacuum cleaner includes an inlet port through which a suctioned air stream including dirt particles pass and a centrifugal separation member having a substantially circular space therein. The centrifugal separation member has a swirl portion to swirl the... | 12/25/2007 |
| 7169305 | Advanced liquid vortex separation system A liquid vortex separator including a vortex tube (16) with an impeller (13) in the feed end to impart a rotational motion to liquid within the tube, a feed cylinder (12) connected to the vortex tube by a reducing cone (14). The separator... | 01/30/2007 |
| 6911060 | Floor standing treatment device The present invention relates to a floor standing treatment device that has a front panel and a mainframe assembly adapted to be removably attachable to the front panel. The mainframe assembly has an integrally molded latching mechanism having a latch and one or mor... | 06/28/2005 |
| 6902597 | Floor standing treatment device The present invention relates to a floor standing treatment device that has a mainframe assembly and a back housing removably attachable to the mainframe assembly. The mainframe assembly comprises a fan and a fan scroll through which air is directed. The back housin... | 06/07/2005 |
| 6829804 | Filtration arrangement of a vacuum cleaner A filtration arrangement of a vacuum cleaner includes a floor-engaging base unit, a body portion pivotally mounted on the base unit and a suction motor/fan assembly located in either the base unit or body portion. A dustcup is mounted on the body portion and is in f... | 12/14/2004 |
| 6810558 | Cyclone dust collecting apparatus for use in vacuum cleaner In a cyclone dust collecting apparatus for use in a vacuum cleaner, mounted in a dust collecting chamber intercommunicating with a motor driving chamber of a cleaner body, for separating contaminants from an air that is drawn in through a suction brush by a centrifu... | 11/02/2004 |
| 6752861 | Device for the separation of liquid and/or solid pollutants entrained by gaseous streams A device for the separation of liquid and/or solid pollutants entrained by gaseous streams, comprising a separating element (11), contained inside a protective casing (12) which comprises a gas inlet and outlet (13, 14), wherein the separating e... | 06/22/2004 |
| 6632370 | Method for entraining and mixing gas with liquids A method for entraining and mixing gas with liquids within a conduit or drop structure, comprising the channeling of one or more liquid flows into spiral flows of predetermined radius (radii), reducing the predetermined radius (radii) to increase the cent... | 10/14/2003 |
| 6616722 | 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... | 09/09/2003 |
| 6478962 | Dynamic bubble trap The bubble trap is used in extracorporeal blood flow circuits of the type used for open heart surgery. The trap is placed in the external blood flow and it removes small micro bubbles from the blood prior to delivery to the body. The device accelerates th... | 11/12/2002 |
| 6419843 | Sewer apparatus An improved sewer apparatus comprising a maintenance hole and an influent line for carrying sewage to the maintenance hole, a vortex form disposed substantially within the maintenance hole which accepts the sewage from the influent line, the vortex form h... | 07/16/2002 |
| 6398973 | Cyclone separator A cyclone separator has an inlet chamber 52 and an outlet chamber 53, means 51 for introducing a fluid mixture into the inlet chamber so that it swirls around the chamber and passes to the outlet chamber in which it swirls about an outlet chamber axis, th... | 06/04/2002 |
| 6312594 | Insert for a cyclone separator A cyclone separator having an improved efficiency to remove a broader spectrum of contained particles is disclosed. The cyclone separator is provided with a member positioned to interact with at least the inner portion of a fluid circulating within the cy... | 11/06/2001 |
| 6258146 | Inlet duct for admitting flue gases into a cyclone separator A flue gas inlet duct into a separator cyclone, the duct having two lateral faces one of which is referred to as the "extrados" face and the other of which is referred to as the "intrados" face, the intrados face terminating at the tip of the cyclone, the... | 07/10/2001 |
| 6238579 | Device for separating solid particles in a fluid stream The present invention provides for discharge (exit) ports for exit fluid flow disposed at or adjacent to one another on one end of a vortex separating body; an inlet port(s) disposed at one end of a separating body having discharge (exit) ports for exit f... | 05/29/2001 |
| 6190543 | Cyclonic separator A cyclonic separator for separating fluids of differing densities comprises a first chamber having a vortex finder and a core member. The vane is arranged co-axial with and adjacent the internal surface of the vortex finder to increase the rotational velo... | 02/20/2001 |
| 6146597 | Separation device A device is disclosed for the quick separation between solid materials and reaction gaseous materials which comprises a vertically oriented inner cylindrical body with a closed end, which cylindrical body forms at the other end an inlet through which a mi... | 11/14/2000 |
| 6024874 | Hydrocyclone separator A hydrocyclone separator (10) has an outer housing (12) including an upper housing portion (14) and a lower housing portion (16). Upper housing portion (14) has a cylindrical chamber (22) and an involuted entrance (20) to cylindrical chamber (22). A vorte... | 02/15/2000 |
| 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 |
| 5807427 | Gas/liquid separator with controllable variable liquid level A gas/liquid separator for separating an inlet stream of a mixture of a gas and a liquid into a substantially liquid stream and a substantially gaseous stream, the separator having a controllable, variable liquid level, includes an elongate cylindrical bo... | 09/15/1998 |
| 5746795 | Replaceable, self-cleaning cartridge for a cyclonic air cleaning device The present invention provides a cyclonic air cleaning device having a self cleaning, replaceable cartridge filter. The device essentially includes a barrel having a vortex tube concentrically positioned therein and a cylindrical, pleated filter cartridge... | 05/05/1998 |
| 5435817 | Portable room air purifier A portable and compact room air purifier having an internal filter element through which air is drawn by a centrifugal fan and wherein the air is discharged generally uniformly and radially by passing between at least one generally arcuate scroll and a su... | 07/25/1995 |
| 5174799 | Horizontal cyclone separator for a fluidized bed reactor A reactor in which a furnace section, a heat recovery section and a horizontal cyclone separator are formed in a vessel. A bed of solid particulate material including fuel is supported in the furnace section and air is introduced into the bed at a velocit... | 12/29/1992 |
| 5062870 | Shut-off device for cyclonic vacuum cleaner A dual cyclonic vacuum cleaner device (10) including outer cylcone (11), inner cyclone (12), collecting receiver (13) and motor (14) and a valve (46) in a housing (38) which preferably closes a passage into an inlet scroll (27) leading to the inner cyclon... | 11/05/1991 |
| 4927437 | Cyclonic separator for removing and recovering airborne particles A cyclonic separator for particles suspended in the flow of an air stream. The separator comprises first and second spiral baffles adapted for mating engagement one within the other for imparting cyclonic flow to the air stream for collecting the particle... | 05/22/1990 |
| 4824449 | Device for transforming a fluid flow A device for transforming a fluid flow comprises a chamber with two lateral walls and a circular or spiral circumferential wall extending between the side walls. A flow duct ends tangentially to the circumferential wall in the chamber. An oblong core with... | 04/25/1989 |
| 4685942 | Axial flow inlet particle separator The invention is an improved inlet particle separator for removing extraneous matter from a stream of air directed into the engine's core section. The improved separator utilizes two stages of separation. The first stage is an axial flow separator for ini... | 08/11/1987 |
| 4619677 | Disposable air filter assembly and method of making same A disposable air filter assembly is provided for use with, but not limited to, an internal combustion engine. The filter assembly includes a housing having a substantially spiral interior air flow passageway. The housing is of molded construction whereby ... | 10/28/1986 |
| 4517813 | Air conditioning system and air mixing/water separation apparatus therein An aircraft cabin air conditioning system with an air mixing/water separation manifold providing accelerated mixing and attendant removal of water droplets, ice and snow so as to save fuel and to reduce maintenance requirements through lowering the temper... | 05/21/1985 |
| 4406677 | Dual cyclone dust separator for exhaust gases A cyclone dust separator for the separation of coarse, small and very fine particles of dust from a dust-laden current of exhaust air or exhaust gas, which is conveyed eccentrically from above, and via a dust pipe, from a fan to a separating vessel is pro... | 09/27/1983 |
| 4390351 | Gas-liquid separator A centrifugal separator for separating gas bubbles from a liquid incorporates a spiral liquid passage with inlet and outlet ends as defined by a top plate, a bottom plate and a strip spirally coiled between the plates and otherwise constructed so that by ... | 06/28/1983 |
| 4380900 | Apparatus for removing solid components from the exhaust gas of internal combustion engines, in particular soot components An apparatus is described for the removal of solid components from the exhaust gas of internal combustion engines, in particular for the removal of soot components from the exhaust gases of self-igniting combustion engines. Under the influence of electros... | 04/26/1983 |
| 4378234 | Particulate material collecting apparatus A particulate material collecting apparatus including a cylindrical member defining therein a spiral flow chamber for forming a spiral flow of gas therein, an inlet duct and an outlet duct connected to the cylindrical member tangentially to the inner circ... | 03/29/1983 |
| 4370154 | Gas diversion unit A unit for diversion of a gas which may be hot, dust-laden, saturated with water vapor and containing water droplets, e.g. from steelworks converters, the unit enabling at one and the same time the flow of gases which it receives tangentially and horizont... | 01/25/1983 |
| 4344783 | Cyclone separator A cyclone intended in particular for multistage heat exchangers, the inlet of which communicates with several partial spirals lying one above the other and having different lengths decreasing in the downward direction. A cyclone of this type is distinguis... | 08/17/1982 |
| 4317662 | Oil separator device An oil separator device for use in a crankcase ventilation system of an internal combustion engine. The device comprises a cannister having an internal baffle member and partition means defining therewith an oil laden fume inlet chamber, an oil separating... | 03/02/1982 |
| 4285707 | Dust separator for separating dust from flowing gaseous media Dust separator for the separation of even fine dust particles from a flowing gaseous media whereby a swirling action is imparted to the gas through which the coarse dust portion is centrifuged and a free-running turbine wheel is rotated so that the fine d... | 08/25/1981 |
| 4260401 | Regenerative cyclone-type air/particulate concentrator and collector A cyclone-type particulate collector and concentrator is provided wherein the outlet tube is provided with a conical concentrator having its sidewalls formed of a plurality of tapered, spaced, nested, generally U-shaped and cross-section vaned members bet... | 04/07/1981 |
| 4246013 | Cyclone type air/particulate concentrator and collector A cyclone vortex type air cleaner and particulate concentrator is provided having greatly improved air cleaning efficiency as the dirty gas stream is subjected to two distinct skimming operations; one between the gas inlet scroll and the outlet tube and t... | 01/20/1981 |
