...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.
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8182586 | Bubble reduction system A bubble reduction system for a fluid flowing system is provided. The bubble reduction system can include a vat containing a fluid, a pump operable to pump the fluid into the vat, a moat containing a portion of the fluid and a bubble trap also containing a portion o... | 05/22/2012 |
| 8043416 | System and method for controlling foam in a printing system A member for controlling foam in a material reservoir includes a body, a concave space in the body, and wings extending from the body in the concave space. A method of controlling foam in an ink reservoir of a printing system includes rotating a foam control member ... | 10/25/2011 |
| 7771515 | Method and installation for treating an aqueous effluent, in order to extract at least one dissolved gaseous compound; application to aquaculture in recirculated aqueous medium A method for treating an aqueous effluent comprising at least one dissolved gaseous compound, by partially separating said compound from said effluent, in order to obtain a treated aqueous phase. In the method, an upflow liquid column of the aqueous effluent ... | 08/10/2010 |
| 7744679 | Liquid—foam system A liquid foam system and process for treating an aqueous medium volume includes foam breaking equipment for treating foam floating on a liquid medium. The foam breaking equipment includes a foam conveyer, a rotatable driven screw for sucking foam present in the foam... | 06/29/2010 |
| 7494531 | Method of, and apparatus for defoaming Defoaming equipment, and more particularly, removing, defoaming, and storing large amounts of foam after a Blast Mitigation or Decontamination Foam has been used in either an open area or in an contained area is described. An apparatus is provided for defoaming, com... | 02/24/2009 |
| 7449051 | Separation of liquid and gas from froth Froth is directed through a flow passage bounded by a filter and a non-porous surface, and liquid is drawn from the froth through the filter as the froth flows through the flow passage. ... | 11/11/2008 |
| 7361210 | Methods and apparatuses for separating froth Methods and apparatuses are provided for separating froth into liquid and gas components. One apparatus includes a container that is configured to hold froth therein and change at least a portion of the froth into substantially separate liquid and gas portions when ... | 04/22/2008 |
| 7267535 | Pipe molding apparatus with mold tunnel air turbulence An extruding apparatus which extrudes continuous length of hollow plastic product has an extruder (3) which feeds molten plastic through die equipment (5) to a mold tunnel (7) formed by side by side moving mold blocks (9). The apparatus i... | 09/11/2007 |
| 7238226 | Defoaming apparatus A defoaming apparatus comprises, in juxtaposition, a defoaming treatment chamber internally provided with a defoaming unit for defoaming, as a result of a rotation of a impeller in a casing having a suction port and discharge ports, by suctioning foam of a foaming l... | 07/03/2007 |
| 7232476 | Apparatus for scum removal An apparatus for scum removal is disclosed wherein toothed paddle induces turbulent effect on the fluids present in the reactor by means of its rotary motion. This results in both breaking and radial displacement of the scum, accumulated on the fluid during the cour... | 06/19/2007 |
| 6969419 | Method for removing gas bubbles from a fluid-containing chamber A method for removing bubbles adhering to the interior wall of a fluid-filled chamber through which a fluid flows, and a related method and apparatus for removing bubbles from a chamber having medical sensory equipment such as a blood gas and chemistry analyzer. The... | 11/29/2005 |
| 6962618 | Device for separating air from flotation foam Device and process for the removal of air from flotation foam formed during the flotation of a paper-fiber-containing suspension. The device includes a driven rotor that includes a shaft and at least one rotor blade positioned on the shaft, and a non-rotating wall a... | 11/08/2005 |
| 6893485 | Method and kit for use with standard pipe couplings to construct a de-aerator A kit for constructing a de-aerator that includes a concentrator is adapted to be connected to a standard pipe coupling. The concentrator is inserted in the path of liquid conveyed through the pipe coupling for aggregating gas, and directing the gas to a cavity. The... | 05/17/2005 |
| 6872239 | Method and a system for separating a mixture A method for separating phases of a mixture comprising and oil-water together with gas. At least a substantial part of the gas is separated from the emulsion before the emulsion is introduced into a separator tank. The oil-water emulsion from which the gas has been ... | 03/29/2005 |
| 6800116 | Static deaeration conditioner for processing of bitumen froth Discloses apparatus and method to deaerate and condition bitumen froth obtained from a primary tar sands bitumen extraction process comprising a vessel containing a plurality of inclined plates, called a static deaeration conditioner. The inclined plates of the stat... | 10/05/2004 |
| 6790256 | Gas carry-under monitoring and control system A system for monitoring gas carry-under of a formation fluid exiting a gas separator by measuring a parameter of interest of the formation fluid exiting the gas separator is disclosed. The parameter of interest that can be correlated with the extent of gas entrained... | 09/14/2004 |
| 6666967 | Defoaming and air-water treating device An object of the present invention is to efficiently remove foam produced in water by the aeration. Further, another object of the present invention is to improve water and air. Said objects can be attained by providing a foam removing apparatus consistin... | 12/23/2003 |
| 6629821 | Pump apparatus The present invention provides a multipurpose pump apparatus of high achievement, which can continuously pump and convey liquid even containing a large amount of foams and can make high level defoaming function and degassing function, and pumped liquid st... | 10/07/2003 |
| 6599948 | Foam control Use of a foam control laser having a wavelength corresponding to a mode specific peak of the absorption spectrum of a liquid constituent of the form greatly increases the efficiency of foam control.... | 07/29/2003 |
| 6590000 | Defoaming of foams utilizing sonication The invention includes a method for defoaming aqueous or non-aqueous foams comprising placing a sonicator probe directly into said foam and thereafter sonicating said foam in pulse mode at a sonication energy of at least about 25 watts/cm2 for ... | 07/08/2003 |
| 6461414 | Foam monitoring and control system A system for monitoring foaming or carry over, at a well site, of a formation fluid by taking a sample of the gas exiting from a high-pressure separator and either measuring the density of the sample or measuring the amount of oil particles present. A cor... | 10/08/2002 |
| 6454835 | Two-phase flow separator A method and apparatus is provided for separating the liquid and non-liquid components of a foamy mixture. The apparatus comprises a filter through which the liquid portion of the foam can pass and through which the gaseous or air component cannot pass, u... | 09/24/2002 |
| 6364939 | Method for reducing the formation of foam during the treatment of a dispersion or a liquid with water vapour A process for reducing the foam formation when a dispersion or liquid is treated with steam by a) introduction of steam into the lower region of a column and simultaneous feed of a medium at the top of the column, the steam ascending to the top of the col... | 04/02/2002 |
| 6106590 | Method of ultrasonic waves degassing and device using the same In an apparatus for defoaming liquid with ultrasonic wave in order to eliminate foam or bubble from the liquid, provided with an ultrasonic wave liquid tank, a defoaming tank, and an ultrasonic oscillator for irradiating ultrasonic wave through the ultras... | 08/22/2000 |
| 6080320 | Method and apparatus for removing foaming contaminants from hydrocarbon processing solvents A column of solvent containing foaming contaminants is provided. Gas is injected into the solvent in the column so as to generate foam in the column. Foam generation continues so as to push the foam up in the column, wherein much of the solvent that is in... | 06/27/2000 |
| 5922191 | Foam control using a fluidized bed of particles A process for suppressing foam formation in a vessel includes the steps of feeding a liquid and a gas to a vessel at a liquid velocity and a gas velocity respectively; adding particles of a solid material to the liquid, the particles having a particle siz... | 07/13/1999 |
| 5922112 | Apparatus for controlling foam A system for automatically delivering an anti-foaming agent to a biological aste treatment system includes a sensor for monitoring the amount of foam present in the system, a pump for pumping a predetermined quantity of anti-foaming agent into the system, ... | 07/13/1999 |
| 5922190 | Process for suppressing foam formation in a bubble column reactor A process for suppressing foam formation in a bubble column reactor includes the steps of feeding a liquid and a gas to a reactor at a liquid velocity and a gas velocity respectively; and adding particles of a solid material to the liquid, wherein the par... | 07/13/1999 |
| 5900046 | Froth separation apparatus An apparatus for separating froth from liquid includes a feed conduit to carry partially aerated feed liquid, and a separator to receive and separate the feed liquid into a first component of froth or gas and a second component of de-aerated liquid or slu... | 05/04/1999 |
| 5879422 | Separating arrangement and method for counteracting foam formation The present invention relates to a cyclone, mainly for separating liquid from gas/vapor, which is formed upon pressure reduction of spent cooking liquid in connection with pulp production. The cyclone includes an inlet arrangement connected to a supply li... | 03/09/1999 |
| 5800721 | Combined cardiotomy fluid and venous blood reservoir A combined cardiotomy and venous blood reservoir according to a preferred embodiment of the invention provides a separate in-flow path for both cardiotomy fluid and for venous blood, and includes a cardiotomy fluid filter element also serving as an initia... | 09/01/1998 |
| 5792246 | Defoaming apparatus A defoaming apparatus is used in a reactor in which a chemical reaction, involving the formation of foam, is effected. The defoaming apparatus includes an impeller disposed at an upper portion of an interior of the reactor, and a motor for rotating the im... | 08/11/1998 |
| 5591251 | Side flow bubble trap apparatus and method An apparatus for trapping bubbles in blood flowing in a circuit, such as an extracorporeal circuit, includes a housing which defines a substantially vertical chamber having an upper subchamber and a lower subchamber. Blood flowing in a substantially downw... | 01/07/1997 |
| 5587004 | Defoaming device and method for aeration A defoaming device and method for aeration, for use in a processor equipped with an aeration apparatus for sending air into a processing solution. The defoaming device includes a pipe for guiding foam produced in the aeration apparatus to outside the aera... | 12/24/1996 |
| 5518701 | Method and apparatus for purification of gases in particular exhaust gases The invention relates to a process and a corresponding plant for the purification of gases, in particular flue gases, using a foam-forming reaction medium with which dirty gas is contacted in a reaction chamber, in which the foam is broken after the react... | 05/21/1996 |
| 5476573 | Apparatus for defoaming and controlling aerobic culture fermentation An apparatus and method for defoaming aerobic fermentation cultures is provided, where the amount of liquid culture medium used is greater than that in conventional aerobic cultures (70% or more of the total capacity of the culture tank) without lowering ... | 12/19/1995 |
| 5446119 | Organopolysiloxanes containing ester groups Organopolysiloxanes which contain ester groups and comprise units of the formula ##EQU1## in which R may be an identical or different monovalent, SiC-bonded hydrocarbon radical having 1 to 18 carbon atoms, A may be an identical or different radical o... | 08/29/1995 |
| 5403388 | Surfactant mediation sparge tube A surfactant mediation sparge tube for use with analytical instruments includes a two part purge vessel having an upper portion attached to a lower portion by a coupling device, an inner foam directing tube carried by a non-permeable disk positioned gener... | 04/04/1995 |
| 5378288 | Method for the disposal of foam, in particular of fire extinguishing foam A method and a device is provided for the discharge of a foam, in particular of a high-expansion and/or medium-expansion foam useful in connection with fire-extinguishing and the like. The foam is furnished with an antifoaming agent water mixture, is suct... | 01/03/1995 |
| 5266481 | Fermentation broth degassification A post-fermentation degassing technique is provided which is directed for use in degassing foamed fermentation broths containing cultured microorganisms. Such a broth is charged while pressurized first through a heat exchanger to cool same, and then throu... | 11/30/1993 |