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...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!
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| Number | Title | Issue Date |
| 5964644 | Abrasive jet stream polishing Abrasive jet stream polishing, wherein an abrasive is suspended in a flowable jet medium and projected at high velocity and pressure at a workpiece is provide, where the jet is projected at the surface to be polished at an oblique angle. The method is sub... | 10/12/1999 |
| 5855783 | Pleated poly(tetra-fluoro ethylene) filter cartridge A pleated, all poly(tetra-fluoro ethylene) filter element (20) incorporating a poly(tetra-fluoro ethylene) filter membrane (24) is shown and described. The membrane is supported by an all poly(tetra-fluoro ethylene) paper (26) and (28), which permits filt... | 01/05/1999 |
| 5833915 | Method of welding polyurethane thin film A method of welding at least two layers of a thin thermoplastic polyurethane elastomer (10A,B) to form a weld seam (12) to produce polyurethane barrier products such as, but not limited to, gloves (20), condoms (30), inflatable catheter balloon cuffs (48A... | 11/10/1998 |
| 5799333 | Glove liner having an ambidextreous and universal size A seamless knitted glove with a cuff having an ambidextrous and universal size made from crimped and textured stretchable continuous filament nylon yarn of four ply of about 70 deniers or less. Also, a method of making a seamless knitted glove with a cuff... | 09/01/1998 |
| 5735335 | Investment casting molds and cores Investment casting molds, and particularly mold cores, are formed of sintered ceramics to near net shape and are then machined to net shape, dimensions and surface finish, by ultrasonic machining with formed tools having the final configuration in mirror ... | 04/07/1998 |
| 5698101 | Hollow fiber membranes A hollow fiber membrane is produced having an outer surface, and inner surface enclosing a lumen, and a continuous network of interconnecting pores extending from the outer surface to the inner surface, wherein substantially all of the pores have an elong... | 12/16/1997 |
| 5679423 | Polyurethane elastomer organ bag of welded polyurethane film A method of welding at least two layers of a thin thermoplastic polyurethane elastomer (10A, B) to form a weld seam (12) to produce polyurethane barrier products such as, but not limited to, gloves (20), condoms (30), inflatable catheter balloon cuffs (48... | 10/21/1997 |
| 5679058 | Abrasive jet cutting medium Abrasive jet stream cutting, wherein an abrasive is suspended in a flowable jet medium (64) and projected at high velocity and pressure (75) at a workpiece (76) is substantially improved by forming the medium of a polymer having reformable sacrificial che... | 10/21/1997 |
| 5658969 | Light weight plastisols and method of making same Plastisol coatings and adhesives having reduced bulk density are provided by incorporating hollow thermoplastic microspheres, wherein the surface of the microspheres is wet by a surfactant which preferentially wets the surface of the microspheres, where t... | 08/19/1997 |
| 5644798 | Polyurethane glove of welded polyurethane film A method of welding at least two layers of a thin thermoplastic polyurethane elastomer (10A, B) to form a weld seam (12) to produce polyurethane barrier products such as, but not limited to, gloves (20), condoms (30), inflatable catheter balloon cuffs (48... | 07/08/1997 |
| 5620891 | Biological reaction processes A process for maintaining a high rate of mass transfer of nutrients contained in a liquid feed stream to a biofilm of microorganisms supported on a bed of particulate matter. The microorganisms in the biofilm are subjected to a continuous, uniform flow of... | 04/15/1997 |
| 5580656 | Process for drying microspheres Microsphere beads are mixed with a surface barrier liquid or mixture of such a liquid with a solid effective to prevent agglomeration and surface bonding of the microspheres; by the control of the application of heat and balancing temperature and active m... | 12/03/1996 |
| 5571567 | Dip molded polyurethane film methods Dip molding of thermoplastic polyurethane elastomers to form medical and surgical gloves, condoms, instrument and appliance covers, and other rubber goods is improved by a controlled viscosity, controlled rate of evaporation solvent system, including a st... | 11/05/1996 |
| 5554673 | Dip molded polyurethane film compositions Dip molding of thermoplastic polyurethane elastomers to form medical and surgical gloves, condoms, instrument and appliance covers, and other rubber goods is improved by a controlled viscosity, controlled rate of evaporation solvent system, including a st... | 09/10/1996 |
| 5549322 | Vehicle lift axle The present invention provides an under-frame lift axle assembly for a vehicle, particularly an off-road vehicle, which includes a suspension lower link element having one end mounted to the frame of said vehicle by a first pivotal joint, an axle assembly... | 08/27/1996 |
| 5527204 | Abrasive jet stream cutting Abrasive jet stream cutting, wherein an abrasive is suspended in a flowable jet medium (64) and projected at high velocity and pressure (75) at a workpiece (76) is substantially improved by forming the medium of a polymer having reformable sacrificial che... | 06/18/1996 |
| 5517124 | Stylus probe for measuring workpiece surface characteristics A stylus probe with both a contact sensing and a capacitive proximity sensing capability provided by positioning a capacitive sensor means (10) on the tip-end of a grounded, thin conductive stainless steel tube (12) so that the capacitive sensor means (10... | 05/14/1996 |
| 5505463 | Game toy A game toy provides amusement that cannot be obtained with games simulating actual contests, so that players can compete over the number of pieces held by avoiding loss of pieces. The game toy has piece retention means 2a, 2b, 2c and 2d for keeping the pl... | 04/09/1996 |
| 5489406 | Method of making polyvinylidene fluoride membrane A method of making a porous polymeric material by heating a mixture comprising polyvinylidene fluoride and a solvent system initially comprising a first component that is a latent solvent for polyvinylidene fluoride and a second component that is a non-so... | 02/06/1996 |
| 5469863 | Polyurethane condom of welded polyurethane film A method of welding at least two layers of a thin thermoplastic polyurethane elastomer (10A, B) to form a weld seam (12) to produce polyurethane barrier products such as, but not limited to, gloves (20), condoms (30), inflatable catheter balloon cuffs (48... | 11/28/1995 |
| 5468397 | Gas backwash of pleated filters In critical filtration applications, filter cartridges are employed to replace ion exchange resin precoat filters to minimize the waste produced. The filter cartridges are backwashed with all gas and the liquid in the filter housing provides an active sco... | 11/21/1995 |
| 5405528 | Modular microporous filter assemblies An improved microporous, modular filter structure assembled from replaceable filter cartridges (25) housed within a filter cartridge assemby (10) connected at opposed ends by means of symmetrical headers (41). The headers include a tube within a tube stru... | 04/11/1995 |
| 5395570 | Hollow fibre membrane extrusion Extrusion of hollow membranes is improved by coextruding a coating fluid layer about the extrudate of heated polymer solution with its interior lumen forming extrudate. The coating fluid is disposed between the forming hollow fiber and a cooling fluid, an... | 03/07/1995 |
| 5388465 | Electromagnetic flowmeter In an electromagnetic flowmeter for obtaining a signal corresponding to flow rate of conductive fluid in a magnetic field, a noise detector detects a noise superimposed on the fluid, and a timing signal generator produces timing of generating an exciting ... | 02/14/1995 |
| 5367833 | Unidirectional abrasive flow machining An abrasive flow machining and polishing apparatus is provided having a hydraulically actuated reciprocating piston (42) and a extrusion medium chamber (10) adapted to receive and extrude a visco-elastic dispersion of an abrasive unidirectionally across t... | 11/29/1994 |
| 5342689 | Thermoplastic microspheres Microsphere wet cake is mixed with a surface barrier coating effective to prevent agglomeration and surface bonding of the microspheres, and removing water by drying with continuous mixing at high shear. In a subsequent step, by the control of the applica... | 08/30/1994 |
| 5334451 | Continuous filament yarn precoat septum A precoat septum in the form of a winding onto a core of textured yarn produced of continuous filaments of an organic or inorganic material. The yarn is texturized by air blowing a plurality of said filaments utilizing an air jet, and drawing off the fila... | 08/02/1994 |
| 5318417 | Extrusion head for forming polymeric hollow fiber A process for making a polymeric, porous hollow fibre (21) by heating a mixture of a thermoplastic polymer and a solvent to a temperature and for a time for the polymer and solvent to mutually dissolve, then introducing the molten mixture into an extrusio... | 06/07/1994 |
| 5315948 | Luff pad for roller reefing and furling sails A luff roller reefing and roller furling sail is provided with a luff pad (6) made up of a laminate of a sail fabric (1) adhesively bonded to a polyurethane elastomeric foam (3). The pad is then adhesively bonded and/or stitched to the length of the luff ... | 05/31/1994 |
| 5307443 | Apparatus for processing information based on fuzzy logic An apparatus for processing fuzzy information based on a membership function defining a fuzzy set, which generates the membership function with an elliptic, parabolic or rectangular, shape of equi-grade contour plane or line, incorporates the membership f... | 04/26/1994 |
| 5287690 | Stainless steel yarn Cut resistant, abrasion resistant and electrically conductive yarns (1) are formed in torque-free form from stainless steel and other metallic yarns (2) served with or formed into composite twists with non-metallic yarns and fibers (4) and (5). The metall... | 02/22/1994 |
| 5277851 | Process of making a porous hollow fiber membrane A method of making a porous polymeric material by heating a mixture of a thermoplastic polymer and a cationic or non-ionic surfactant having a hydrophilic-lipophilic balance range of 4.0 to 6.0 to a temperature and for a time sufficient for the polymer an... | 01/11/1994 |
| 5251722 | Rear-discharge concrete mixer having rear-end transmission control A concrete delivery truck having an electronically controlled transmission is shown and described. There are two (2) electronic control units, one in the truck cab and one at the rear of the truck. The rear electronic control is operative when the cab ele... | 10/12/1993 |
| 5249342 | Extractor A device for pulling a bushing from a housing comprises a collet having legs which are expanded outwards by a cam action. The collet and cam are mounted on a shaft and the collet legs pushed onto a conical cam surface of the cam to expand them outwards. R... | 10/05/1993 |
| 5248548 | Stainless steel yarn and protective garments Cut resistant, abrasion resistant and electrically conductive yarns (1) are formed in torque-free form from stainless steel and other metallic yarns (2) served with or formed into composite twists with non-metallic yarns and fibers (4) and (5). The metall... | 09/28/1993 |
| 5248077 | Friction welding and welds made by friction Friction welding is preformed by linear or non-rotating orbital motion in which both parts to be joined by friction welding are moved in identical paths, out of phase to produce friction until welding temperature is attained, and then in phase, with the p... | 09/28/1993 |
| 5245195 | Radiation resistant film X-ray attenuation, particularly for protective garments is provided by a film of a thermoplastic elastomer containing from about 60 to about 90 weight percent of barium sulfate or other barium salt. Films having a thickness of about 1 mm provide attenuati... | 09/14/1993 |
| 5225038 | Orbital chemical milling A method for chemical milling a workpiece utilizing a chemical milling fluid that is passivating to the workpiece, wherein the tool is provided with an abrasive surface, and said tool and workpiece are brought together with a contacting relative motion so... | 07/06/1993 |
| 5225447 | Composition and method for the treatment of sickle cell anemia The major component of the carbonate fraction of free acids extractable from alfalfa has shown excellent control of symptoms in patients with sickle cell disease. Its structure has been established by proton NMR spectrometry as being 16-hydroxy-9Z,12Z,14E... | 07/06/1993 |
| 5200077 | Backflushable rotary melt polymer filter apparatus A continuous, self-cleaning, rotary filtering apparatus is provided having a plurality of filter elements within a rotatable filter housing adapted for rotation between an inlet plate having an inlet manifold and an outlet plate having an outlet manifold ... | 04/06/1993 |
