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...During the Civil War, the Confederacy established its own Patent Office which issued 266 patents, a third of which concerned implements of war.
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| Number | Title | Issue Date |
| 8187056 | Process and apparatus for surface-finishing A processing apparatus is provided to surface-finish or otherwise process features of a workpiece, such as a lumen of a stent. The fluid jet apparatus can have a nozzle system and a holder for holding and positioning the workpiece with respect to the nozzle system. ... | 05/29/2012 |
| 8187057 | Blast nozzle with blast media fragmenter A media blast nozzle for cleaning a surface with compressed air and ejected particles of a sublimating blast media comprises a media size changer to change a size of the blast media particles. The media blast nozzle has an entrance and an exit and a throat therebetw... | 05/29/2012 |
| 8172645 | Dosing device The invention provides a dosing device for a particulate material blasting apparatus comprising a dosing chamber having a base, a rotor carrying a plurality of circumferentially formed pockets ratably mountable with the chamber, a particulate product feed conduit ad... | 05/08/2012 |
| 8147293 | Fluid system and method for thin kerf cutting and in-situ recycling A fluid jet system for achieving a kerf width less than 0.015 inches is provided. In one embodiment, the system includes an orifice mount having a high-pressure fluid bore and an abrasive bore configured to communicate an abrasive mixture in form of a paste or foam ... | 04/03/2012 |
| 8128460 | Method of producing rust inhibitive sheet metal through scale removal with a slurry blasting descaling cell A method is provided for removing iron oxide scale from sheet metal and producing a sheet metal surface with rust inhibitive properties. The sheet metal is advanced through the descaling cell and a slurry mixture is propelled against at least one of the top surface ... | 03/06/2012 |
| 8118643 | Method of descaling metal wire rod and apparatus therefor An apparatus for removing scales from metal wires including: a liquid container tank 12 through which the metal wires 10 pass, mixing nozzles 14 disposed to allow the metal wirings to pass through the liquid container tank for injecting a high-p... | 02/21/2012 |
| 8066549 | Method of producing rust inhibitive sheet metal through scale removal with a slurry blasting descaling cell having improved grit flow A method is provided for removing iron oxide scale from sheet metal and producing a sheet metal surface with rust inhibitive properties. The sheet metal is advanced through the descaling cell and a slurry mixture is propelled against at least one of the top surface ... | 11/29/2011 |
| 8062095 | Method of producing rust inhibitive sheet metal through scale removal with a slurry blasting descaling cell having improved grit flow A method is provided for removing iron oxide scale from sheet metal and producing a sheet metal surface with rust inhibitive properties. The sheet metal is advanced through the descaling cell and a slurry mixture is propelled against at least one of the top surface ... | 11/22/2011 |
| 8016642 | Blasting device for steel pipe inner surface, blasting method for steel pipe inner surface, and method for producing steel pipe with excellent inner surface texture A blasting device for blasting steel pipe inner surface includes a tubular carrier fluid inflow unit connected to one end of a horizontal steel pipe, and a negative pressure suction unit connected to the other end of the steel pipe. A polishing material or a wiping ... | 09/13/2011 |
| 7806750 | Apparatus and method for cutting using a liquid fluid jet An apparatus and method for cutting a material using a water jet. A central shaft is mounted so as to extend outward from a material to be cut. A support member is mounted on the central shaft so as to extend transversely therefrom. At least one water jet cutting he... | 10/05/2010 |
| 7775856 | Method for removal of surface films from reclaim substrates Embodiments of the invention describe a method for reclaiming a substrate by removing surface films with media blasting. A substrate is provided having a surface film. Media blasting is performed on the substrate to remove the surface film from the surface. In one e... | 08/17/2010 |
| 7708620 | Method and device for generating dry ice particles A method for generating a jet of dry ice particles, in which liquid carbon dioxide is expanded in an expansion space (12) in order to form dry ice particles which are then introduced into a flow of a carrier gas, and the discharge of the dry ice particles fro... | 05/04/2010 |
| 7666066 | Feeding solid particles into a fluid stream A method and apparatus for injecting solid particles such as dry ice into an airstream using an airlock having a spherical valve member with spaced through ports and rotatable between an annular seal on one side of the spherical member for feeding the particles to t... | 02/23/2010 |
| 7524233 | Tool for using a particulate media/fluid mixture A nozzle assembly for a tool which utilizes a particulate/fluid mixture comprises a unique floating ferrule within a handpiece assembly, and eliminates the need, in the prior art, for a nose piece to attach a nozzle to the handpiece assembly. Rather, the nozzle and ... | 04/28/2009 |
| 7485027 | Abrasive entrainment A method for generating a high-velocity cutting jet comprises forming a high velocity jet of a liquid such as water, forming a suspension of an abrasive such as garnet in a carrier gas containing a condensable vapour such as superheated steam, and entraining the abr... | 02/03/2009 |
| 7455570 | Large part polishing apparatus and polishing method The present invention comprises a turntable which holds a turbine part at a predetermined position, the turn table being rotatably supported by a support member, and rotated and driven by a driving motor, an abrasive feeding unit which feeds an abrasive particle hav... | 11/25/2008 |
| 7421872 | Shot-blasting installation for blasting work pieces made from light metal alloys A shot-blasting installation (1) for blasting work pieces (30) made from light metal alloys, comprising at least one blasting chamber (3) for receiving the work pieces that are to be blasted, at least two blasting wheels (6) arranged in w... | 09/09/2008 |
| 7419418 | CNC abrasive fluid-jet milling A method and apparatus for milling a desired pocket in a solid workpiece uses an abrasive fluid-jet by moving and suitably orienting the abrasive fluid-jet relative to the workpiece. The method includes defining a path of the abrasive fluid-jet necessary to mill a d... | 09/02/2008 |
| 7416471 | Recovery device of blasting medium and method therefor The present invention provides a recovery device of a blasting medium for recovering a blasting medium after use, which has been injected to a work and has fallen therefrom, into a solid-gas separating tank by suctioning with a suction blower, wherein the solid-gas ... | 08/26/2008 |
| RE40446 | Strength-enhancing apparatus for metal part Disclosed is a strength-enhancing apparatus for a metal part comprising a recovery mechanism for sucking powder flow dust generated from glass beads crushed on a surface of a gear in a chamber to recover it together with drainage, wherein the recovery mechanism incl... | 08/05/2008 |
| 7393263 | Method for manufacturing surface-coated cutting insert This method for manufacturing a surface-coated cutting insert includes clamping and holding a surface-coated cutting insert with a pair of rotary shafts which are rotatable around an axis, and jetting an abrasive fluid to the surface of the surface-coated cutting in... | 07/01/2008 |
| 7371153 | Glass etching An apparatus for etching a workpiece in which a first abrasive particulate material, for example aluminium oxide, and a second particulate material, for example glass dust, are entrained together in a stream of gas. The apparatus recycles exhaust particulate materia... | 05/13/2008 |
| 7364615 | Method of forming pavers containing waste glass particles A method for forming pavers includes mixing cement, water and sand to form a cement composition, and mixing waste glass particles with the cement composition to form a cement-glass particle composition. Thereafter the cement glass particle composition is poured into... | 04/29/2008 |
| 7351059 | Process for treating a surface A process for treating a surface (2) to clean or otherwise treat the surface (2) comprises a step of contacting the surface (2) with a particulate treating agent such that at least some of the particles (1) roll along at least a portion o... | 04/01/2008 |
| 7347768 | Apparatus and method to test abrasion resistance of material using airborne particulate An apparatus and method to test the abrasion resistance of materials. In one embodiment, the apparatus comprises a conduit network, a primary air stream generating device to generate a primary air stream in the conduit network, a secondary air stream generating devi... | 03/25/2008 |
| 7338348 | Dust collection system for a belt sander An electrically powered belt sander comprising a housing, a dust flow path defined by the housing, a motor mounted in the housing at a first location and having an output shaft, a fan connectable to the motor output shaft and rotateably mounted in the housing at a s... | 03/04/2008 |
| 7335089 | Water jet stripping and recontouring of gas turbine buckets and blades A method for water jet stripping and recontouring of a coated article of manufacture is provided. The method includes dimensionally scanning the coated article and establishing a three-dimensional model for the coated article. The method further includes establishin... | 02/26/2008 |
| 7326356 | Substrate and method of forming substrate for fluid ejection device A method of forming an opening through a substrate having a first side and a second side opposite the first side includes abrasive machining a first portion of the opening into the substrate from the second side toward the first side, and abrasive machining a second... | 02/05/2008 |
| 7320735 | Fan cleaning method and apparatus A simple yet effective system for cleaning fans and air circulators facilitates the cleaning of ceiling and hard-to-reach units without having to remove the blades or other parts to be cleaned. A flexible bag encloses parts of a fan to be cleaned. A source of compre... | 01/22/2008 |
| 7318769 | System and method for removing film from planar substrate peripheries A system for removing film from a planar substrate includes a shuttle which transports a film-coated substrate through a film removal station to a rotation station. At the rotation station, the substrate is removed from the shuttle and rotated to a new orientation. ... | 01/15/2008 |
| 7314512 | Treatment of surfaces to stabilize heavy metals A reactive coating composition and method for treating a surface including heavy metals by applying the reactive coating composition to the surface. The surface can be, for example, a paint layer containing heavy metals. The reactive coating composition includes a s... | 01/01/2008 |
| 7314527 | Reactor system A gas delivery system for delivering a gas to a reactor. The reactor has a reactor chamber, a gas inlet port, and a gas exhaust port. The gas delivery system included a torch chamber having an outer wall extending along a first axis. A torch injector extends into th... | 01/01/2008 |
| 7311584 | Abrasive throwing wheel and improved blade assembly A throwing wheel comprising a mounting element having a central axis with a plurality of blades connected to the mounting element. Each of the blades has an inner end, a first portion of the inner end and a second portion of the inner end. A plurality of locking mec... | 12/25/2007 |
| 7311474 | Pellet loader A pellet loader according to the present invention is provided with an ejector portion 1. A gas supply pipe 2 is connected to an injection nozzle 11 of the ejector portion 1 for supplying compressed gas from a compressed gas source 8 | 12/25/2007 |
| 7303463 | Semiconductor wafer polishing apparatus, and method of polishing semiconductor wafer Aimed at thoroughly preventing abrasive and dusts from adhering onto the circuit-forming region of a wafer, improving yield ratio of semiconductor devices, and thereby improving operation rates of the individual manufacturing apparatuses in the succeeding stage, a s... | 12/04/2007 |
| 7303461 | Method of machining airfoils by disc tools A method for machining a rotor having a disc and a plurality of integral airfoils projecting outwardly from the disc, according to one aspect of the invention, comprises a step of machining each airfoil with a disc tool having a grinding periphery thereof adapted fo... | 12/04/2007 |
| 7303600 | Unexpanded perlite ore polishing composition and methods An unexpanded perlite ore polishing composition is shown. The composition comprises base material having grains of unexpanded perlite ore of a selected distribution of particle sizes which undergo fracturing of the grains as a function of an abrasive force applied t... | 12/04/2007 |
| 7303060 | Material conveying system without dust rising A material conveying system without dust rising, having a plurality of trays; a transmission mechanism, for carrying the trays and transmitting the trays in motion; and a controller, for controlling the transmission mechanism, is characterized in that the material c... | 12/04/2007 |
| 7301155 | Radiation detector and radiation imaging apparatus and method for producing radiation detector A radiation detector provided in a substrate with a detection layer which is sensitive to radiation, the detector being characterized in that said detection layer is formed by a polycrystal film comprising either one of CdTe (cadmium telluride), ZnTe (zinc telluride... | 11/27/2007 |
| 7299732 | Honeycomb removal Honeycomb removal comprises directing a nozzle at the surface of a substrate at an angle of less than about 90° such that the water will strike the substrate at the base of the honeycomb, parallel to the direction of the ribbon which forms the honeycomb structure. ... | 11/27/2007 |
