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| Number | Title | Issue Date |
| 7255631 | Orbital polishing apparatus and method An abrasive flow apparatus for polishing a workpiece wherein a horizontal machine tool is adapted such that a workpiece may be secured to first shaft rotatable about a first longitudinal axis. A conjugate form to the workpiece may be secured to a second shaft which ... | 08/14/2007 |
| 7182675 | Apparatus for abrading the region of intersection between a branch outlet and a passageway in a body A method and apparatus are disclosed for abrading the inner surface at the intersection region of a branch outlet with the wall of a body having a passageway. Using abrasive flow machining, it is possible to abrade the intersection region to provide a smooth transit... | 02/27/2007 |
| 7044842 | Method and apparatus for abrading the region of intersection between a branch outlet and a passageway in a body A method and apparatus are disclosed for abrading the inner surface at the intersection region of a branch outlet with the wall of a body having a passageway. Using abrasive flow machining, it is possible to abrade the intersection region to provide a smooth transit... | 05/16/2006 |
| 6953387 | Method and apparatus for measuring flow rate through and polishing a workpiece orifice A method and apparatus for comparing the flow rate through an orifice within a master part with the orifice within a workpiece by subjecting each orifice to an identical fluid at an identical temperature, under an identical pressure, and comparing the downstream pre... | 10/11/2005 |
| 6918937 | Abrasive polishing composition The present invention is based on the practice of abrasive machining with no sealed working chamber by the employment of a visco-elastic abrasive medium, behaving predominantly as an elastic solid at the applied strain of the orbital working motion, and applying orb... | 07/19/2005 |
| 6905395 | Abrasive flow machining apparatus and method An apparatus and method for abrasive flow machining the orifice (18) of a workpiece (20) by using an abrasive media (15) whereby the apparatus (10) is capable of passing media (15) through the orifice (18) at a predetermined... | 06/14/2005 |
| 6701529 | Smart padding system utilizing an energy absorbent medium and articles made therefrom The present invention relates to an energy absorbent medium which is compliant and conformable in the absence of an applied force, and stiffens in response to the rate of an applied force to dissipate energy. The medium comprises a blend of a polymer and ... | 03/09/2004 |
| 6645056 | Self-forming tooling for an orbital polishing machine and method for producing the same A method for producing, from a blank, restrictive tooling for use in an orbital polishing machine involves urging one of either the workpiece or the blank along a predetermined path against the other to physically impart a proportioned contour of the work... | 11/11/2003 |
| 6585930 | Method for article fabrication using carbohydrate binder A binder, and a method of using it in conventional powder metallurgy processes and solid free form fabrication including metal powder, or combinations of metals and ceramics, in which the binder contains at least one carbohydrate as the active binding com... | 07/01/2003 |
| 6544110 | Abrasive polishing apparatus The present invention is based on the practice of abrasive machining with no sealed working chamber by the employment of a visco-elastic abrasive medium, behaving predominantly as an elastic solid at the applied strain of the orbital working motion, and a... | 04/08/2003 |
| 6503126 | Method and apparatus for abrading the region of intersection between a branch outlet and a passageway in a body A method and apparatus are disclosed for abrading the inner surface at the intersection region of a branch outlet with the wall of a body having a passageway. Using abrasive flow machining, it is possible to abrade the intersection region to provide a smo... | 01/07/2003 |
| 6500050 | High precision abrasive flow machining apparatus and method An apparatus and method for abrasive flow machining the orifice of a workpiece by using an abrasive media whereby the apparatus may accommodate abrasive media having a range of viscosities by modifying the diameters of pistons and cylinders in positive di... | 12/31/2002 |
| 6288154 | 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... | 09/11/2001 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 5189377 | Method and apparatus for co-ordinate measuring using a capacitance probe The surface parameters and characteristics of a conductive workpiece are determined by applying a voltage between the workpiece and a capacitance probe having proximity sensing capabilities, and moving the probe in two or three co-ordinate axes relative t... | 02/23/1993 |
| 5187899 | High frequency vibrational polishing High frequency vibrational polishing without substantial loss of fine resolution and detail is provided by employing a tool of a more ultrasonically abradable material than the workpiece, as the oscillating driver of a liquid abrasive slurry. The total is... | 02/23/1993 |
| 5125191 | Abrasive flow machining with an in situ viscous plastic medium A workpiece surface is worked by placing a displacer member adjacent thereto sufficient to create a closed chamber therebetween into which a visco-elastic abrasive medium is deposited. A relative motion is then created between the workpiece and displacer ... | 06/30/1992 |
| 5114548 | Orbital electrochemical machining A method for electrochemical machining a workpiece utilizing an electrolyte that is passivating to the workpiece, wherein the conductive tool is provided with a nonconductive abrasive surface, and said tool and workpiece are brought together with a contac... | 05/19/1992 |
| 5085068 | Die forming metallic sheet materials A process and apparatus for forming a sheet material by drawing it into a die cavity (12) utilizing the flow of a viscous thermoplastic polymer medium extruded against the sheet (22) and/or extruded out of said die cavity (12) through a plurality of passa... | 02/04/1992 |
| 5076027 | Process for abrasive flow machining using multiple cylinders An apparatus for abrading a workpiece surface by extruding a flowable plastic abrading medium through a passageway which includes said workpiece surface. The apparatus utilizes at least three chambers for feeding and receiving said medium whereby at least... | 12/31/1991 |
| 5070652 | Reversible unidirectional abrasive flow machining unidirectional abrasive flow machining is achieved by a pair of extrusion chambers, whereby a first workpiece is fixtured to a first of said chambers and an abrasive medium is extruded from the first chamber through the first workpiece, and upon exiting t... | 12/10/1991 |
| 5054247 | Method of controlling flow resistance in fluid orifice manufacture Fluid flow through orifices, particularly where flow rates are to be controlled or metered, is improved by employing abrasive flow machining to achieve a target flow resistance in the orifice.... | 10/08/1991 |
| 4996796 | Process and apparatus of abrading by extrusion An apparatus for abrading a workpiece surface by extruding a flowable plastic abrading medium through a passageway which includes said workpiece surface. The apparatus utilizes at least three chambers for feeding and receiving said medium whereby at least... | 03/05/1991 |
| 4995949 | Orifice sizing using chemical, electrochemical, electrical discharge machining, plating, coating techniques A method of processing an orifice in a structure to attain a precise predetermined flow resistance through said orifice. Undersized orifices are machined by either electrochemical, chemical or electric discharge machining, while oversized orifices are ele... | 02/26/1991 |
| 4936057 | Method of finish machining the surface of irregularly shaped fluid passages The present invention is based upon the performance of abrasive flow machining through pump casings and, more particularly, through volute casings whereby the internal surface friction of the casing is substantially reduced to consistently effect a minima... | 06/26/1990 |
| 4908574 | Capacitor array sensors for determining conformity to surface shape A sensor for sensing and quantifying the conformity of a workpiece surface contour to a predetermined design contour. The sensor consists of an array of capacitor elements on a surface having the negative image of the predetermined design contour, against... | 03/13/1990 |
| 4891916 | Oscillatory or translational table for machine tools An orbital table assembly having a top plate which can be made to orbit or translate in a path without rotating, and having a fixed base plate under said top plate and a linkage plate between the two other plates, while an orbiting cam secured to the top ... | 01/09/1990 |
| 4870743 | Quick change tool assembly for ultrasonic machine tool A structure for quickly and accurately aligning an ultrasonic tool assembly on an ultrasonic machine tool table in which a mounting is provided on said table and an engaging device is secured to said tool assembly which can be made to quickly engage the m... | 10/03/1989 |
| 4766389 | Capacitor array sensors tactile and proximity sensing and methods of use thereof An arrangement for a tactile sensing system involved in the determination of object shape, contour, orientation and detection of slip finding one use in real time control of robotically manipulated tools. The sensor uses contact between the object and a g... | 08/23/1988 |
| 4754115 | High speed electrical discharge machining by redressing high resolution graphite electrodes An EDM apparatus for high speed machining of a workpiece and redressing of a graphite electrode by an ultrasonic machining tool or a total form machining tool. When the electrode becomes worn the workpiece clamped on a table (1) is shifted away by a slide... | 06/28/1988 |
| 4681600 | Cutting tool fabrication process A method is provided for making improved molded abrasive tools by applying centifugal force and/or vibratory action to the abrasive particles during the molding operation. The abrasive is thereby forced and/or sifted preferentially into a closely packed s... | 07/21/1987 |
| 4656788 | Variable orbital drive mechanism A mechanism for imparting relative orbital motion to at least two associated driven elements. The driven elements are driven in an eccentric path, usually with a common drive axis, where the angular displacement of each such path is controlled while relat... | 04/14/1987 |
| 4563238 | Chemical deburring system with a soluble mask A process for chemically deburring a workpiece, comprising the steps of: coating the workpiece with a soluble masking material, allowing the masking material to pull away from sharp projections on the workpiece, such as burrs or edges, so that the sharp p... | 01/07/1986 |
| 4482860 | Capacitance measurement probe An improved probe is provided for surface texture capacitive gauging. One embodiment of the probe comprises a sensor assembly with a thin, flexible dielectric having a conductive coating to provide an active sensor area and integral lead-in which is durab... | 11/13/1984 |
