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 |
| 7297235 | Method and apparatus for making molded filter elements Apparatus for forming fibrous filter elements such as tubular elements molded from borosilicate microfibers. Molding rigs are supplied with a slurry from a system including a holding tank and a reservoir. The reservoir is coupled to a water intake and also receives ... | 11/20/2007 |
| 7148170 | Recycled ceramic slurry, recycled ceramic powder, ceramic electronic part, and fabricating methods therefor Recycled ceramic slurry is produced by a method including the steps: dissolving the waste material of unfired ceramic in a solvent to form a waste solution; and adjusting a composition of the waste solution to thereby produce the recycled ceramic slurry. If the wast... | 12/12/2006 |
| 7125941 | Aqueous emulsion polymerization process for producing fluoropolymers The present invention provides a method of making a fluoropolymer through emulsion polymerization of one or more fluorinated monomers in an aqueous phase in the presence of a fluorinated surfactant. At least part of the fluorinated surfactant is added to the aqueous... | 10/24/2006 |
| 7109642 | Composite piezoelectric apparatus and method The present invention relates to composite piezoelectric apparatus, transducers and methods of manufacture. In an embodiment, a composite piezoelectric apparatus has a sacrificial base and pillar array. Different volume percents of piezoelectric material are used in... | 09/19/2006 |
| 7048884 | Production of gloves and other articles of flexible polymer material A process for producing an article in a flexible foamed polymer material, including treating a former with a coagulant; dipping the treated former in a latex foam mixture to form a layer of the mixture on the former that includes air cells; curing the layer to gel t... | 05/23/2006 |
| 6743383 | Process for the production of ceramic tiles The present invention is directed to an improved process for the production of ceramic tiles using industrial wastes. The invention particularly relates to an improved process for the production of ceramic tiles using industrial wastes such as iron ore slime, fly as... | 06/01/2004 |
| 6506807 | Process for preparing pre-expanded particles of thermoplastic resin A process for preparing pre-expanded particles of a thermoplastic resin without washing the prepared pre-expanded particles to remove a dispersing agent remaining thereon and without discharging waste water, which comprises charging particles of a thermop... | 01/14/2003 |
| 6217815 | Method and apparatus for manufacturing prophylactic devices Prophylactic devices are made in an inert atmosphere by cooling mandrels on which the devices are to be deposited, dipping the mandrels into a polymeric material in a solvent/carrier and a mold release agent, rotating the mandrels during and after the dip... | 04/17/2001 |
| 6080269 | Gelatine recovery device A gelatine recovery device feeds rod-like gelatine film pieces between a high-speed belt and low-speed belt, separates unified gelatine film into two parts by frictional contact and removes a mold release agent coating the film pieces which agent is then ... | 06/27/2000 |
| 6039902 | Methods of recycling catalyst in oxidations of hydrocarbons This invention relates to methods of recycling catalyst in oxidations of hydrocarbons, such as cyclohexane for example, to respective intermediate oxidation products, such as adipic acid for example, by a direct process. The catalyst remains in solution d... | 03/21/2000 |
| 6015513 | Method of making lipstick samplers A method of manufacturing disposable, single-use lipstick samplers by means of a dipping process. In a preferred form, a reservoir containing molten lipstick wax material is provided, and a spindle which is disposed above the reservoir is advanceable towa... | 01/18/2000 |
| 5955023 | Method of forming composite particle products The present invention attains the foregoing and other objects of the invention by providing a method of forming a composite particle product from ligno-cellulosic material bonded together with water-insoluble lignin. The lignin has a relatively low molecu... | 09/21/1999 |
| 5908589 | Methods for separating catalyst from oxidation mixtures containing dibasic acids This invention relates to methods and reactor devices for controlling the oxidation of hydrocarbons to dibasic acids, in the presence of a catalyst and a monobasic acid, by removing the catalyst from the reaction mixture, outside the oxidation zone, after... | 06/01/1999 |
| 5885493 | Method of drying articles A method of drying a green particulate article includes the steps of: a. Providing a green article which includes a particulate material and a pore phase material, the pore phase material including a solvent; and b. contacting the green article with a liquid desicc... | 03/23/1999 |
| 5872205 | Polymer segregation process The present invention provides a method enabling segregation of the various ingredients making up the polymer based products into component product streams and collection of these component streams so as to form individual product streams. Thus, according... | 02/16/1999 |
| 5653889 | Process for filtering polyamide oligomers from aqueous streams containing the same A filter element surface is coated with particulate polyamide which serves as a filter aid to trap polyamide oligomers suspended in water. The particulate polyamide is preferably coated onto a surface of a bag filter so that polyamide oligomers flowing th... | 08/05/1997 |
| 5569419 | Continuous flow process of mold-making or die-making using a reusable mixture substance to make selected finished products This invention relates to a continuous flow process of mold making or die making using a reusable bondable mixture substance to make selected finished products. The bondable mixture substance includes a mixture of preferably ventonite clay, sand, and a lu... | 10/29/1996 |
| 5484557 | Method of and apparatus for the cooling of extruded plastic profiles or sections An isobaric vaporization cooling for extruded thermoplastic profiles is carried out at 25 inches Hg in a tank by spraying water onto the extrusions. The water vapor and any air entering the tank are withdrawn to maintain the pressure constant during the c... | 01/16/1996 |
| 5435943 | Method and apparatus for making an ophthalmic lens A method and apparatus for making an ophthalmic lens pumps monomer into one end of a gas permeable tube along its interior length while a chamber surrounding the gas permeable tube is maintained at a subatmospheric pressure by means of a vacuum pump. Pref... | 07/25/1995 |
| 5387379 | Washing method for workpiece A washing method for a workpiece, a resin molded product and a manufacturing method for a resin molded product. There are three steps involved, a detergent washing step, a rinsing step and a drying step. In the detergent washing step there is an additiona... | 02/07/1995 |
| 5284607 | Process for forming powder-free medical gloves A process for making powder-free medical gloves that are nevertheless easy to don involves first forming a glove on a form by successively dip-coating layers of a coagulant containing acid-soluble powder dispersed throughout, an elastomer, and an antibloc... | 02/08/1994 |
| 5230842 | Interior pipeline coating process To rehabilitate an internally corroded underground pipeline, excavations are made at its opposite ends to which launching and receiving pipe structures are then secured. Various pig member sets, with appropriate treatment fluids carried thereby, are air-d... | 07/27/1993 |
| 5194193 | Method of repairing underground pipe This method for the trenchless, in situ repair of underground pipe includes the steps of isolating a section of pipe to be repaired, heating a sealing material (having predetermined physical and chemical properties) to a liquid state, pumping the liquid m... | 03/16/1993 |
| 5114327 | Rapid cooling apparatus for an injection molding machine Rapid cooling of molded workpieces formed in an injection molding machine such as PET parisons is provided by a receiver receiving molded workpieces upon ejection from the molding machine, the receiver being transported out of the molding machine to an ad... | 05/19/1992 |
| 5067887 | Hot-melt adhesive recycling system A system for recovering hot-melt materials for reuse in a glue gun includes a flexible mold form mounted in a carrier and having an internal cavity that approximates the dimensions of the preformed hot-melt sticks. In order to change from one type hot-mel... | 11/26/1991 |
| 5066443 | Dual barrier laminate process The present invention provides a novel process for the coextrusion of a laminate containing more than a single barrier layer. The process overcomes the interfacial instability associated with thinning and spreading a composite stream containing a barrier ... | 11/19/1991 |
| 4898697 | Rotational slush molding method A rotational molding process for slush casting mold with plastisol includes providing a conveyor having a plurality of spaced reversing arm assemblies, each arm assembly having opposite ends carrying molds thereon; providing first and second conveyor path... | 02/06/1990 |
| 4874565 | Plastisol slush process A method wherein an article is molded of liquid plastisol in a mold having mold heaters disposed adjacent the backside of a mold surface for controlling the temperature over respective first and second areas of the mold surface. First and second heating a... | 10/17/1989 |
| 4818143 | Asbestos decomposition A method for decomposing and disposing of asbestos compounds through the use of a two part chemical process. The first step in the chemical process involves the decomposition of asbestos through the use of sulfuric acid. The second step of the process inv... | 04/04/1989 |
| 4774304 | Molding powder comprising agglomerated particles of PTFE compounds A process for the continuous agglomeration of granular tetrafluoroethylene polymer powders which cannot be processed from the melt to give molding powders having a high bulk density, an improved powder flow and particle stability and a narrow particle siz... | 09/27/1988 |
| 4740337 | Powder slush process for making plastic articles The plastic molded article is produced by heating a mold by contact with a preheated salt bath. The salt bath is readily maintained at a uniform temperature and is self-insulating for energy efficiency. A noncontact infrared sensor monitors the mold cavit... | 04/26/1988 |
| 4439385 | Continuous process for the agglomeration of PTFE powders in a liquid medium A process for the continuous agglomeration of granular tetrafluoroethylene polymer powders which cannot be processed from the melt to give molding powders having a high bulk density, an improved powder flow and particle stability and a narrow particle siz... | 03/27/1984 |
| 4368164 | Glass fiber compounding in gaskets as asbestos replacement A method of dispersing glass fibers in a rubber solution comprises forming a rubber-bonded glass sheet and dissolving the rubberbond of the glass sheet in a rubber solution comprising rubber and a solvent compatible with that used to form the rubber-bonde... | 01/11/1983 |
| 4356143 | Apparatus for and a method of curing a continuous length of curable material In an apparatus and a method for the curing of a continuous length of curable material, the length of material is passed through a curing chamber defined by a tubular body 47. This body 47 is disposed in the upper part of another heated tubular body 2 whi... | 10/26/1982 |
| 4219515 | Water alkalinity control in the manufacture of hydrous silicate products The water resulting from the filter press molding of slurries of hydrated lime and reactive silica in the manufacture of hydrous calcium silicate products is recycled to the process by treating it with carbon dioxide to precipitate dissolved calcium hydro... | 08/26/1980 |
| 4108931 | System of making molds for investment casting A system of making molds for investment casting in which the patterns are formed from, and the sprue form is coated with, polyethylene glycol having a molecular weight in the range of from approximately 1,300 to approximately 1,600, or its equivalent and ... | 08/22/1978 |
| 4102968 | Agglomeration of finely divided sulfur particles in a liquid suspension Finely divided sulfur particles in a liquid suspension are agglomerated by adding molten sulfur to the suspension and agitating the mixture to transform the particles into agglomerates wherein the finely divided sulfur particles are held together by the p... | 07/25/1978 |
