Abrading Process Patents (Class 451/28)
  • Patent number: 10293456
    Abstract: The present invention provides a chemical mechanical (CMP) polishing pad for polishing, for example, a semiconductor substrate, having one or more endpoint detection windows (windows) which at a thickness of 2 mm would have a UV cut-off at a wavelength of 325 nm or lower which are the product of a reaction mixture of (A) from 30 to 56 wt. % of one or more cycloaliphatic diisocyanates or polyisocyanates with (B) from 43 to 69.9999 a polyol mixture of (i) a polymeric diol having an average molecular weight of from 500 to 1,500, such as a polycarbonate diol for hard windows and a polyether polyol for soft windows and (ii) a triol having an average to molecular weight of from 120 to 320 in a weight ratio of (B)(i) polymeric diol to (B)(ii) triol ranging from 1.6:1 to 5.2:1, and a catalyst, preferably a secondary or tertiary amine or bismuth neodecanoate, all weight percent's based on the total solids weight of the reaction mixture.
    Type: Grant
    Filed: March 2, 2018
    Date of Patent: May 21, 2019
    Assignee: Rohm and Haas Electronic Materials CMP Holdings, Inc.
    Inventors: Nan-Rong Chiou, Mohammad T. Islam, George C. Jacob, Teresa Brugarolas Brufau
  • Patent number: 10293466
    Abstract: Structured abrasive articles include a backing and shaped abrasive composites secured to the backing. The shaped abrasive composites include abrasive grits dispersed in a binder matrix. The shaped abrasive composites include a bottom surface and a top surface opposite and not contacting the bottom surface, and at least three sidewalls abutting both the bottom and top surfaces and two other sidewalls. In one embodiment, at least two cusps are formed by the top surface and individual sidewalls. In another embodiment, the top surface includes at least two triangular facets that contact at least two respective sidewalls and at least two cusps. The top surface includes at least one interior recessed portion nearer the cusps than the bottom surface. Methods of abrading a workpiece using the structured abrasive article are also disclosed.
    Type: Grant
    Filed: November 4, 2014
    Date of Patent: May 21, 2019
    Assignee: 3M Innovative Properties Company
    Inventors: John D. Haas, Negus B. Adefris, Scott R. Culler
  • Patent number: 10266702
    Abstract: A method of forming a self-cleaning coating on a substrate comprises the step of selecting a substrate, cleaning the substrate, and/or roughening the substrate using an abrasive. In an embodiment, roughening of the substrate create microscopic tortuous grooves. Another embodiment of the method comprises coating the roughened surface with at least one hydrophobic chemical agent. In an exemplary embodiment, the hydrophobic chemical agent covalently binds with the substrate creating nanoscopic grooves. Another embodiment of the present disclosure pertains to an apparatus for depositing a self-cleaning coating on a flat substrate. A further embodiment of the present disclosure pertains to a self-cleaning coating on a substrate comprising a hydrophobic chemical agent covalently bonded to at least one roughened surface of the substrate.
    Type: Grant
    Filed: June 10, 2013
    Date of Patent: April 23, 2019
    Assignee: UNIVERSITY OF HOUSTON SYSTEM
    Inventors: Seamus Curran, Kang-Shyang Liao, Killian Barton
  • Patent number: 10220487
    Abstract: The present application relates to polishing pads for chemical mechanical planarization (CMP) of substrates, and methods of fabrication and use thereof. The pads described in this invention are customized to polishing specifications where specifications include (but not limited to) to the material being polished, chip design and architecture, chip density and pattern density, equipment platform and type of slurry used. These pads can be designed with a specialized polymeric nano-structure with a long or short range order which allows for molecular level tuning achieving superior thermo-mechanical characteristics. More particularly, the pads can be designed and fabricated so that there is both uniform and nonuniform spatial distribution of chemical and physical properties within the pads.
    Type: Grant
    Filed: February 12, 2016
    Date of Patent: March 5, 2019
    Assignee: Cabot Microelectronics Corporation
    Inventors: Pradip K. Roy, Manish Deopura, Sudhanshu Misra
  • Patent number: 10207388
    Abstract: The present invention provides a chemical mechanical (CMP) polishing pad for polishing, for example, a semiconductor substrate, having one or more endpoint detection windows (windows) which at a thickness of 2 mm would have a UV cut-off at a wavelength of 325 nm or lower which are the product of a reaction mixture of (A) from 30 to 56 wt. % of one or more cycloaliphatic diisocyanates or polyisocyanates with (B) from 43 to 69.9999 a polyol mixture of (i) a polymeric diol having an average molecular weight of from 500 to 1,500, such as a polycarbonate diol for hard windows and a polyether polyol for soft windows and (ii) a triol having an average molecular weight of from 120 to 320 in a weight ratio of (B)(i) polymeric diol to (B)(ii) triol ranging from 1.6:1 to 5.2:1, and a catalyst, preferably a secondary or tertiary amine, all weight percent's based on the total solids weight of the reaction mixture.
    Type: Grant
    Filed: April 19, 2017
    Date of Patent: February 19, 2019
    Assignees: Rohm and Haas Electronic Materials CMP Holdings, Inc., Dow Global Technologies LLC
    Inventors: Nan-Rong Chiou, Mohammad T. Islam, George C. Jacob
  • Patent number: 10101314
    Abstract: When machining a workpiece by a machine tool by cutting, a cutting fluid is sprayed to a workpiece machining region. Above a surface of the cutting fluid in a cutting fluid tank, an odor sensor for detecting the odor emitted by the cutting fluid is disposed in the space defined the surface of the cutting fluid in the cutting fluid tank and a cover. Based on the odor detected by the odor sensor, deterioration of the cutting fluid is determined.
    Type: Grant
    Filed: October 12, 2015
    Date of Patent: October 16, 2018
    Assignee: FANUC CORPORATION
    Inventor: Takahiro Endou
  • Patent number: 10086500
    Abstract: A method of fabricating a chemical mechanical polishing pad includes introducing polymer precursors containing acrylate functional groups into a mold, providing abrasive particles and a photo-initiator in the polymer precursors to form a mixture, and while the mixture is contained between a bottom plate and a top cover of the mold, exposing the mixture to ultraviolet radiation through a transparent section of the mold to cause the polymer precursors to form radicals, forming a polymer matrix from the polymer precursor by causing the radicals to cross-link with one another. The polishing layer includes the polymer matrix having the abrasive particles dispersed therein.
    Type: Grant
    Filed: December 18, 2014
    Date of Patent: October 2, 2018
    Assignee: Applied Materials, Inc.
    Inventors: Mahendra Christopher Orilall, Rajeev Bajaj, Fred C. Redeker
  • Patent number: 10076769
    Abstract: Methods and systems for providing cleaning and providing barrier coatings to interior wall surfaces of small diameter nonmetal and composite piping systems in buildings, swimming pools, underground pipes, in-slab piping systems, piping under driveways and various liquid transmission lines. An entire piping system can be cleaned in one single pass by dry particulates forced by air throughout the building piping system by an external generator, and the entire piping system can be coated in one single pass by a machine connected exterior to the piping system. Small pipes can be protected by the effects of water corrosion, erosion and electrolysis, extending the life of piping systems such as plastics, PVC (polyvinyl chloride), composite materials, polybutylene.
    Type: Grant
    Filed: January 5, 2018
    Date of Patent: September 18, 2018
    Assignee: Pipe Restoration Technologies, LLC
    Inventors: Larry L. Gillanders, Steven A. Williams, Gregory Ryan, John F. Trout
  • Patent number: 10056247
    Abstract: In accordance with the following step of a method of manufacturing a MOSFET, a first cutting step of cutting a silicon carbide wafer along a plane substantially parallel to a {11-20} plane is performed. After the first cutting step, a second cutting step of cutting the silicon carbide wafer along a plane substantially perpendicular to the {11-20} plane and substantially perpendicular to the first main surface is performed.
    Type: Grant
    Filed: October 7, 2015
    Date of Patent: August 21, 2018
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Mitsuhiko Sakai, Hiroyuki Kitabayashi
  • Patent number: 10000677
    Abstract: A method includes: providing a mold having a plurality of mold cavities, wherein each mold cavity is bounded by a plurality of faces joined along common edges; filling at least some of the mold cavities with a sol-gel composition that includes a release agent dispersed therein; at least partially drying the sol-gel composition thereby forming shaped ceramic precursor particles; calcining at least a portion of the shaped ceramic precursor particles to provide calcined shaped ceramic precursor particles; and sintering at least a portion of the calcined shaped ceramic precursor particles to provide ceramic shaped abrasive particles. A sol-gel composition, shaped ceramic precursor particles, and ceramic shaped abrasive particles associated with practice of the method are also disclosed.
    Type: Grant
    Filed: September 19, 2017
    Date of Patent: June 19, 2018
    Assignee: 3M Innovative Properties Company
    Inventors: John T. Boden, Scott R. Culler, Dwight D. Erickson
  • Patent number: 9975213
    Abstract: A polishing apparatus connected to a robot arm and used to polish a workpiece includes a bracket, a polishing assembly, and a positioning assembly. The polishing assembly is mounted on the bracket and includes a driver and a polishing plate connected to the driver. The driver is capable of driving the polishing plate to rotate, and defines an annular positioning groove around the spin axis. The positioning assembly includes a first positioning plate and a second positioning plate mounted on the bracket and opposite to the first positioning plate. The first positioning plate and the second positioning plate are clamped into two sides of the positioning groove, whereby the driver is clamped between the first positioning plate and the second positioning plate.
    Type: Grant
    Filed: October 7, 2014
    Date of Patent: May 22, 2018
    Assignees: FU DING ELECTRONICAL TECHNOLOGY (JIASHAN), HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: Tao Zhou
  • Patent number: 9924967
    Abstract: The invention relates to an abrasive body for a grinding tool with an abrasive layer, which has at least one binding agent and abrasive grains, characterized in that thermochromic coloring agents are provided in the abrasive layer. The grinding tool includes elements for connecting the grinding tool to a driving device for rotatingly driving the abrasive body. The grinding tool is used for treating human body parts.
    Type: Grant
    Filed: April 11, 2014
    Date of Patent: March 27, 2018
    Assignee: Lukas-Erzett Vereinigte Schleif-und Fraswerkzeugfabriken GmbH & Co. KG
    Inventors: Gerd Fischer, Bernhard Runden
  • Patent number: 9889470
    Abstract: Methods and systems for providing cleaning and providing barrier coatings to interior wall surfaces of small diameter nonmetal and composite piping systems in buildings, swimming pools, underground pipes, in-slab piping systems, piping under driveways and various liquid transmission lines. An entire piping system can be cleaned in one single pass by dry particulates forced by air throughout the building piping system by an external generator, and the entire piping system can be coated in one single pass by a machine connected exterior to the piping system. Small pipes can be protected by the effects of water corrosion, erosion and electrolysis, extending the life of piping systems such as plastics, PVC (polyvinyl chloride), composite materials, polybutylene.
    Type: Grant
    Filed: May 12, 2017
    Date of Patent: February 13, 2018
    Assignee: Pipe Restoration Technologies, LLC
    Inventors: Larry L. Gillanders, Steven A. Williams, Gregory Ryan, John F. Trout
  • Patent number: 9839991
    Abstract: Provided are multilayered abrasive articles that include an abrasive composite having shaped features, a carrier film, and a nonwoven web, where the nonwoven web and the carrier film have respective patterns of discrete, three-dimensional protrusions that are aligned with each other. A compressible foam backing extending across a major surface of the nonwoven web opposite the carrier film. Further provided are multilayered abrasive articles that include an abrasive composite, a carrier film, and a non-woven web. The nonwoven web and the carrier film have respective patterns of discrete, three-dimensional protrusions that are aligned with each other and the shaped features and the three-dimensional protrusions of the nonwoven web have an average diameter:average diameter ratio ranging from 1:50 to 1:5.
    Type: Grant
    Filed: October 2, 2015
    Date of Patent: December 12, 2017
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventor: Kim E. Whittaker
  • Patent number: 9796063
    Abstract: The present disclosure relates to a chemical mechanical planarization pad and a method of making and using a chemical mechanical planarization pad. The chemical mechanical planarization pad may include a first component including a water soluble composition and water insoluble composition exhibiting a solubility in water of less than that of the water soluble composition, wherein at least one of the water soluble and water insoluble compositions of the first component is formed of fibers. The chemical mechanical planarization pad may also include a second component, wherein the first component is present as a discrete phase in a continuous of the second component.
    Type: Grant
    Filed: June 30, 2014
    Date of Patent: October 24, 2017
    Assignee: FNS TECH CO., LTD.
    Inventors: Paul Lefevre, Anoop Mathew, Guangwei Wu, Scott Xin Qiao, Oscar K. Hsu, David Adam Wells, John Erik Aldeborgh, Marc C. Jin
  • Patent number: 9771505
    Abstract: An abrasive grain includes a surface having at least a first face with a first outline, and at least one second face with a second outline. The first outline does not contain any vertices, but the second outline contains at least one vertex. The abrasive grain may include a ceramic material, especially polycrystalline ?-Al2O3.
    Type: Grant
    Filed: July 31, 2013
    Date of Patent: September 26, 2017
    Assignee: Robert Bosch GmbH
    Inventors: Moritz Oldenkotte, Georg Hejtmann, Gert Lindemann, Stefan Fuenfschilling, Petra Stedile, Adrian Jenni, Tony Pleschinger
  • Patent number: 9676981
    Abstract: A method of forming a shaped abrasive particle including forming a precursor shaped abrasive particle having a body including at least one predetermined stress concentration point and at least one predetermined stress concentration vector and processing the precursor shaped abrasive particle and fracturing the precursor shaped abrasive particle substantially along the predetermined stress concentration vector to form a fractured shaped abrasive particle.
    Type: Grant
    Filed: December 24, 2014
    Date of Patent: June 13, 2017
    Assignee: SAINT-GOBAIN CERAMICS & PLASTICS, INC.
    Inventors: David Louapre, James A. Salvatore, Alexandra Marazano
  • Patent number: 9669518
    Abstract: The present invention relates to a polishing pad and a method for making the same. The polishing pad has a grinding layer. The grinding layer includes a plurality of fibers and a main body. The fineness of the fibers is 0.001 den to 6 den. The main body is a foam and encloses the fibers. The main body has a plurality of first pores and a plurality of second pores, wherein the first pores are communicated with each other, and the second pores are independent from each other. The size of the first pores is at least 5 times greater than the size of the second pores. The hardness of the grinding layer is 30 to 90 shore D, and the compression ratio thereof is 1% to 10%.
    Type: Grant
    Filed: August 26, 2014
    Date of Patent: June 6, 2017
    Assignee: San Fang Chemical Industry Co., Ltd.
    Inventors: Chung-Chih Feng, I-Peng Yao, Wen-Chieh Wu, Yung-Chang Hung
  • Patent number: 9662721
    Abstract: A method of forming a curved slot in a turbine disk includes the steps of forming a pre-slot in the turbine disk and finishing the pre-slot to form a slot that receives a portion of a turbine blade. The turbine disk including a first face, an opposing second face, and an outer perimeter surface extending between the first face and the opposing second face. The pre-slot includes a first curved wall and a second curved wall that each extend between the first face and the opposing second face. An intersection between the outer perimeter surface and each of the first curved wall and the second curved wall is defined by a curved line.
    Type: Grant
    Filed: February 26, 2008
    Date of Patent: May 30, 2017
    Assignee: United Technologies Corporation
    Inventor: Changsheng Guo
  • Patent number: 9662757
    Abstract: Systems and methods for treating concrete, which includes the steps of wetting a surface of concrete with a amorphous colloidal silica, allowing time for the colloidal silica to penetrate the concrete surface, and cutting the surface of the concrete with a bladed tool wherein the longitudinal blade portion is positioned approximately at an angle between 30 degrees and 90 degrees relative to the surface of the concrete.
    Type: Grant
    Filed: May 29, 2015
    Date of Patent: May 30, 2017
    Assignee: Global Polishing Systems, LLC
    Inventor: Mark Wetherell
  • Patent number: 9656364
    Abstract: A hand sander and sanding disc fixture for attaching a sanding disc to a hand sander includes a table having a top with a sander storage station and an application station thereon. The storage station has a holder capable of holding a hand sander having a sander pad on the top of the table. The application station has at least two datum pegs extending from the top of the table that are capable of passing through two corresponding datum holes in the sanding disc. The at least two datum pegs having datum surfaces configured to be received in datum notches in an outer diameter of the sander pad. The datum pegs are capable of aligning the sander pad with the sanding disc when the sander pad is pressed against an attaching side of the sanding disc.
    Type: Grant
    Filed: July 16, 2014
    Date of Patent: May 23, 2017
    Assignees: Honda Motor Co., Ltd., Tool Technologies by Van Dyke, LLC, Starcke Abrasives USA, Inc.
    Inventors: Cheryl Ann Ryan, Anthony Mudd, Steven Ray Van Dyke, Jerry Douglas Horn
  • Patent number: 9649740
    Abstract: A vibration assistant polishing module which comprises a polishing disk, a workpiece carrier tray, a linear guide way mechanism, a linkage, a motor and an adjustable eccentricity mechanism. The linear guide way mechanism includes a slide, a guide seat and a guide rod. The slide is pivot jointed with workpiece carrier tray and engaged in guide seat. The adjustable eccentricity mechanism comprises a base which is connected with a power shaft of the motor, and a pivot shaft of base and linkage is eccentric to the power shaft. The power shaft drives the base rotating and the linkage swinging eccentrically, and the slide moves linearly according to the limitation from guide seat, and a horizontal radial vibration and low frequency vibration is generated on the workpiece carrier tray, so the low frequency vibration is generated on the surface of the workpiece which is touched with the polishing disk.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: May 16, 2017
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Chia-Jen Ting, Tsung-Hsin Lin, Ta-Hsin Chou, Chun-Fa Lan
  • Patent number: 9645037
    Abstract: A vehicle wheel service system configured with a load roller assembly to apply a generally radial load to a vehicle wheel assembly during rotation, and which is configured with sensors to obtain one or more measurements of lateral forces associated with the vehicle wheel assembly during the loaded rotation, from which a quantified representation of lateral force for the tire of the vehicle wheel assembly is determined.
    Type: Grant
    Filed: September 27, 2012
    Date of Patent: May 9, 2017
    Assignee: Hunter Engineering Company
    Inventors: Gregory F. Meyer, Patrick G. J. Callanan
  • Patent number: 9575486
    Abstract: A method determines a path of a tool machining a pocket shape in a workpiece. The pocket shape is defined by a closed curve in an x-y plane. The method determines positions and velocities of a motion of an oscillator having an energy defined by a function that is positive within a boundary of the pocket shape and equals zero on the boundary of the pocket shape. The method determines coordinates of the path of the tool based on corresponding pairs of position and velocity values of the motion, wherein a position value of each pair represents an x coordinate of the path of the tool in the x-y plane, and a velocity value of each pair represents a y coordinate of the path of the tool in the x-y plane.
    Type: Grant
    Filed: March 26, 2014
    Date of Patent: February 21, 2017
    Assignee: Mitsubishi Electric Research Laboratories, Inc.
    Inventors: Tamas Kalmar-Nagy, Huseyin Erdim
  • Patent number: 9492905
    Abstract: A retaining ring for holding a substrate below a carrier head during chemical mechanical polishing includes an annular lower portion and an annular upper portion secured to the lower portion. The annular lower portion has a main body with a bottom surface for contacting a polishing pad during polishing, and is a first material. A top surface of the upper portion is configured to be secured to the carrier head. The upper portion is a second material that is more rigid than the first material. A thickness and stiffness of the lower portion is selected for a particular polishing environment to improve polishing uniformity near an edge of the substrate.
    Type: Grant
    Filed: April 6, 2015
    Date of Patent: November 15, 2016
    Assignee: Applied Materials, Inc.
    Inventors: Hung Chih Chen, Samuel Chu-Chiang Hsu, Gautam Shashank Dandavate
  • Patent number: 9473070
    Abstract: An apparatus for determining and/or monitoring at least one process variable of a medium, comprising: an oscillatable unit, which has a membrane and at least one oscillatable element, wherein the oscillatable element is secured to the membrane at least in a first securement region and in a second securement region. At least one driving/receiving unit, which excites the oscillatable unit to execute mechanical oscillations and which produces a received signal dependent on the oscillations of the oscillatable unit; and a control/evaluation unit, which evaluates the received signal with reference to the process variable. The apparatus is distinguished by features including that the driving/receiving unit is embodied in such a manner and arranged on a rear face of the membrane facing away from the oscillatable element that the oscillatable element executes torsional oscillations.
    Type: Grant
    Filed: November 22, 2012
    Date of Patent: October 18, 2016
    Assignee: Endress + Hauser GmbH + Co. KG
    Inventors: Helmut Pfeiffer, Benjamin Mack
  • Patent number: 9457453
    Abstract: A coated abrasive article comprising a backing, an adhesive layer disposed in a discontinuous distribution on at least a portion of the backing, wherein the discontinuous distribution comprises a plurality of adhesive contact regions having at least one of a lateral spacing or a longitudinal spacing between each of the adhesive contact regions; and at least one abrasive particle disposed on each adhesive contact region, the abrasive particle having a tip, and there being at least one of a lateral spacing or a longitudinal spacing between each of the abrasive particles, and wherein at least 65% of the at least one of a lateral spacing and a longitudinal spacing between the tips of the abrasive particles is within 2.5 standard deviations of the mean.
    Type: Grant
    Filed: March 31, 2014
    Date of Patent: October 4, 2016
    Assignee: SAINT-GOBAIN ABRASIVES, INC./SAINT-GOBAIN ABRASIFS
    Inventors: Anuj Seth, Darrell K. Everts, Vivek Cheruvari Kottieth Raman
  • Patent number: 9446429
    Abstract: Methods and systems for providing cleaning and providing barrier coatings to interior wall surfaces of small diameter metal and composite piping systems in buildings. An entire piping system can be cleaned in one single pass by dry particulates forced by air throughout the building piping system by an external generator, and the entire piping system can be coated in one single pass by a machine connected exterior to the piping system. Small pipes can be protected by the effects of water corrosion, erosion and electrolysis, extending the life of piping systems such as copper, steel, lead, brass, cast iron piping and composite materials.
    Type: Grant
    Filed: July 7, 2014
    Date of Patent: September 20, 2016
    Assignee: Pipe Restoration Technologies, LLC
    Inventors: Larry Gillanders, Steven Williams, Gregory Ryan, John F. Trout
  • Patent number: 9421665
    Abstract: A pressure-adjusting lapping element is included as a structural component of a carrier assembly in a lapping head. The lapping element includes actuator nodes that permit fine tuning of a lapping force applied through the lapping element to a work piece. An actuator assembly is directly attached to the lapping element and manipulates the individual actuator nodes. The lapping element further includes whippletree structure to permit a desired degree of flexibility in the lapping element to respond to force inputs at the actuator nodes.
    Type: Grant
    Filed: February 5, 2015
    Date of Patent: August 23, 2016
    Assignee: VEECO INSTRUMENTS, INC.
    Inventors: Gregory W. Schuh, Laurent Heughebaert
  • Patent number: 9358663
    Abstract: A system for use in removing a multi-layer coating from a substrate is provided. The multi-layer coating includes a first coating applied to the substrate and a second coating applied over the first coating. The first coating is formed from a first material and the second coating is formed from a second material different from the first material. The system includes a grinding mechanism configured to remove the multi-layer coating from the substrate, and a controller coupled in communication with the grinding mechanism. The controller is configured to position the grinding mechanism against the multi-layer coating, initiate a first removal mode that directs the grinding mechanism to traverse across the substrate, monitor a variable operating parameter of the grinding mechanism during the first removal mode, and evaluate a value of the variable operating parameter against a predetermined threshold to determine whether the second coating has been removed from the substrate.
    Type: Grant
    Filed: April 16, 2014
    Date of Patent: June 7, 2016
    Assignee: General Electric Company
    Inventors: Blake Allen Fulton, Michael Anthony DePalma, Craig Lowell Sarratt, Ryan Jeffrey Cardillo
  • Patent number: 9360401
    Abstract: The present invention provides a sample stack structure with multiple layers. The sample stack structure has at least a substrate, an adhesive layer and a target layer. The target layer is directly sandwiched between the substrate and the adhesive layer.
    Type: Grant
    Filed: September 24, 2014
    Date of Patent: June 7, 2016
    Assignee: INOTERA MEMORIES, INC.
    Inventors: Jian-Shing Luo, Hsiu-Ting Lee
  • Patent number: 9296082
    Abstract: A disk buffing apparatus includes a spindle for rotating an annular disk, and a first pad arm for loading a first abrasive tape against a first surface of the annular disk. The first pad arm includes a pad arm frame having a pad receptacle and a first pad. The first pad has a first damping layer in contact with the first pad arm within the pad receptacle, and a first tape loading layer for contacting the first abrasive tape. The first damping layer comprises a first polymeric material and the first tape loading layer comprises a second polymeric material. The first polymeric material has a lesser hardness than the second polymeric material.
    Type: Grant
    Filed: December 4, 2013
    Date of Patent: March 29, 2016
    Assignee: WD Media, LLC
    Inventors: Prem Kumar Kesvanathan, Shaun H. Chen
  • Patent number: 9150765
    Abstract: Shaped ceramic articles can be obtained by screen printing the desired shapes from a dispersion of a precursor of the ceramic onto a receiving surface using a transfer assisted technique that applies a differential pressure, at least partially drying the screen printed shapes, and firing them to generate the shaped ceramic articles. Shaped abrasive particles made using lower viscosity sol gels that tended to flow or creep after the screen printing formation were found to have higher grinding performance over screen printed shaped abrasive particles made with higher viscosity sol gels.
    Type: Grant
    Filed: June 3, 2013
    Date of Patent: October 6, 2015
    Assignee: 3M Innovative Properties Company
    Inventors: Dennis G. Welygan, Dwight D. Erickson, John T. Boden
  • Patent number: 9144877
    Abstract: Machining of the present invention is machining of polishing work to be polished by movement of polishing sheet relative to work, in a state where polishing sheet is in contact with a surface of work to be polished. In the machining, work is arranged in contact with polishing sheet in a state where work is sandwiched between first simultaneous machining material with hardness lower than that of work, and second simultaneous machining material with hardness higher than that of work, and work is polished by relative movement of polishing sheet from first simultaneous machining material toward second simultaneous machining material.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: September 29, 2015
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventor: Shoji Nakano
  • Patent number: 9073175
    Abstract: Method for abrasive waterjet cutting of materials determines a constant of cuttability using an abrasive waterjet Kawj, according to version A, where three deformation parameters are measured on a test cut/sample, version B, where two deformation parameters are measured, version C where one parameter is measured, or a version D where the design is carried out by calculating Kawj according to Young's modulus or according to an ultrasonic wave speed of the cut material. This constant is subsequently input to an algorithm. The result of a calculation using the algorithm acquires sufficient numerical and graphical data to an optimum setting of parameters and are generally valid for all engineering materials, and further of data on cut quality, limit depth of cuts and economical parameters, and also on mechanical properties of the cut material with regard to classification of the material into cuttability class.
    Type: Grant
    Filed: July 6, 2011
    Date of Patent: July 7, 2015
    Assignee: INSTITUTE OF GEONICS AS CR, V.V.I.
    Inventors: Jan Valicek, Alois Borovicka, Sergej Hloch, Petr Hlavacek
  • Patent number: 9073165
    Abstract: Systems and methods for treating concrete, which includes the steps of wetting a surface of concrete with a amorphous colloidal silica, allowing time for the colloidal silica to penetrate the concrete surface, and cutting the surface of the concrete with a bladed tool wherein the longitudinal blade portion is positioned approximately at an angle between 30 degrees and 90 degrees relative to the surface of the concrete.
    Type: Grant
    Filed: February 3, 2014
    Date of Patent: July 7, 2015
    Assignee: GLOBAL POLISHING SYSTEMS LLC
    Inventor: Mark Wetherell
  • Patent number: 9056384
    Abstract: Described herein is an apparatus for sanding an edge of a panel. The apparatus includes a base having a horizontal support surface for supporting the panel, and a fence mounted to the base. The fence has a vertical guide surface for engaging the edge of the panel. The fence also has at least one vertical slot along the vertical guide surface. The apparatus also includes at least one orbital sander positioned within the vertical slot for sanding the edge of the panel, and a linear actuator for reciprocating the orbital sander within the vertical slot along a vertical path. In use, the panel is moved along the base and the panel edge engages the fence while the sander oscillates and reciprocates to sand the panel edge.
    Type: Grant
    Filed: January 10, 2014
    Date of Patent: June 16, 2015
    Assignee: Tacha Holdings Inc.
    Inventor: Carlos Ribeiro
  • Patent number: 9050082
    Abstract: A compound barb medical device is provided which includes an elongated body having at least one barb formed along the length of the body, the barb defining an inner surface with a first portion disposed at a first orientation relative to a longitudinal axis of the elongated body, and a second portion disposed at a second orientation relative to the longitudinal axis. Optionally, the barb defines a third portion disposed at a third orientation relative to the longitudinal axis. A method for forming a compound barb on a medical device is also provided.
    Type: Grant
    Filed: April 21, 2014
    Date of Patent: June 9, 2015
    Assignee: Covidien LP
    Inventors: Matthew D. Cohen, Nicholas Maiorino, Timothy D. Kosa, Mark S. Buchter, Michael Primavera
  • Patent number: 9048430
    Abstract: Exemplary embodiments of the present invention disclose a non-halogenated etchant for etching an indium oxide layer and a method of manufacturing a display substrate using the non-halogenated etchant, the non-halogenated etchant including nitric acid, sulfuric acid, a corrosion inhibitor including ammonium, a cyclic amine-based compound, and water.
    Type: Grant
    Filed: December 19, 2011
    Date of Patent: June 2, 2015
    Assignees: Samsung Display Co., Ltd., Dongwoo Fine-Chem Co., Ltd.
    Inventors: Seon-Il Kim, Shin-Il Choi, Ji-Young Park, Sang-Gab Kim, O-Byoung Kwon, Dong-Ki Kim, Sang-Tae Kim, Young-Chul Park, In-Ho Yu, Young-Jin Yoon, Suck-Jun Lee, Joon-Woo Lee, Min-Ki Lim, Sang-Hoon Jang, Young-Jun Jin
  • Patent number: 9039486
    Abstract: Described are embodiments of an invention for a method and a tool to produce a textured surface on the retention tab of a storage cell. The tool has a form that fits within the storage cell. The form has a hard material with a hard surface with contacts a surface of the retention tab within the storage cell. The movement of the hard surface across the surface of the retention tab produces a textured surface on the retention tab. The textured interface between a notch of a data storage cartridge and a retention tab of a storage cell provides a consistent and low friction force that retains the data storage cartridge within the cell but allows the accessor to easily remove the data storage cartridge when needed.
    Type: Grant
    Filed: September 7, 2012
    Date of Patent: May 26, 2015
    Assignee: International Business Machines Corporation
    Inventors: Dylan J. Boday, Andrew S. Green, Shawn M. Nave
  • Publication number: 20150140902
    Abstract: The method is for sharpening a blade. An automatic sharpening apparatus is provided that has a housing with an elongate opening defined therein. A blade is placed inside the elongate opening. The blade is tightened between self-centered clamp holders. The rotation of the grinding wheel is turned on. The rotating grinding-wheel engages an underside of the blade and automatically moves along the blade by following a contour of the blade. While the grinding wheel moves along the blade, a counter-weight provides a counter-weight to the grinding wheel. The blade is sharpened while the blade is stationary inside the elongate opening of the housing.
    Type: Application
    Filed: October 27, 2014
    Publication date: May 21, 2015
    Inventor: Magnus Eriksson
  • Publication number: 20150140901
    Abstract: The method is for sharpening a blade. An automatic sharpening apparatus is provided that has a holder. A blade is placed into the holder. A grinding-wheel driving motor, in operative engagement with a wheel on a spindle, rotates a grinding wheel. A grinding assembly motor moves the grinding wheel in an x-direction towards the blade. A linear motor moves the grinding wheel from a first position to a second position in a z-direction without moving the grinding-wheel driving motor. The rotating grinding wheel engages the blade. The grinding wheel sharpens the blade.
    Type: Application
    Filed: November 5, 2014
    Publication date: May 21, 2015
    Inventor: Magnus Eriksson
  • Publication number: 20150133034
    Abstract: The present disclosure relates to a machine tool for machining workpieces, particularly a grinding machine, and to a method for positioning a spindle head of such a machine tool. The machine tool comprises a workpiece holder for receiving a workpiece, and a spindle head for receiving a tool, particularly a grinding wheel, wherein the spindle head is movable by motor with respect to the workpiece holder, wherein a handle is arranged at the spindle head and comprises at least one detector that is arranged to detect an impact on the handle, and wherein a control device is provided that is arranged to move the spindle head in at least one operation mode by motor in a defined manner dependent on the detected impact on the handle.
    Type: Application
    Filed: January 16, 2015
    Publication date: May 14, 2015
    Inventors: Michael LUTHI, Mark SCHNYDER
  • Publication number: 20150118939
    Abstract: Embodiments of the invention are directed to a portable grinding apparatus comprising: a frame; a boring bar operatively coupled to the frame; and a grinding assembly operatively coupled to the boring bar, wherein the grinding assembly is adjustable in one or more axes by adjusting the frame or the grinding assembly for grinding a component secured to the frame.
    Type: Application
    Filed: October 23, 2014
    Publication date: April 30, 2015
    Inventors: John VanNess Andrews, JR., Robert Christopher Grice, David Graham Kemp, Mark Andrew Reese
  • Publication number: 20150104999
    Abstract: A substrate processing apparatus capable of accurately aligning a center of a substrate, such as a wafer, with an axis of a substrate stage and capable of processing the substrate without bending the substrate is disclosed. The substrate processing apparatus includes a first substrate stage having a first substrate-holding surface configured to hold a first region in a lower surface of the substrate, a second substrate stage having a second substrate-holding surface configured to hold a second region in the lower surface of the substrate, a stage elevator configured to move the first substrate-holding surface between an elevated position higher than the second substrate-holding surface and a lowered position lower than the second substrate-holding surface, and an aligner configured to measure an amount of eccentricity of a center of the substrate from the axis of the second substrate stage and align the center of the substrate with the axis of the second substrate stage.
    Type: Application
    Filed: October 8, 2014
    Publication date: April 16, 2015
    Inventors: Masaya SEKI, Tetsuji TOGAWA, Masayuki NAKANISHI, Kenya ITO
  • Publication number: 20150104998
    Abstract: An aero-contouring apparatus is provided. The aero-contouring apparatus has a housing assembly and a motor assembly disposed therein. The motor assembly has a motor unit and a drive unit. The aero-contouring apparatus further has an engagement force/tilt limiting member coupled to the housing assembly, which has a central opening and a bottom end configured to contact a surface to be aero-contoured of an aerodynamically functional coating applied to a structure. The aero-contouring apparatus further has an abrading unit coupled to the drive unit and inserted through the central opening in non-contact communication with the engagement force/tilt limiting member. The abrading unit is driven by the drive unit in a random orbit motion on the surface. The engagement force/tilt limiting member mechanically limits both an engagement force and any tilting motion of the abrading unit with respect to the surface.
    Type: Application
    Filed: August 12, 2013
    Publication date: April 16, 2015
    Applicant: The Boeing Company
    Inventor: Mark D. Fuller
  • Publication number: 20150099426
    Abstract: A head structure for a lapping assembly including a lapping control feature is disclosed. The lapping control feature includes a raised contact surface elevated from a front surface of the head structure of the lapping assembly. A relative position of the workpiece and raised contact surface are aligned to control workpiece thickness and other lapping parameters. In illustrated embodiments, the relative position of the workpiece and raised contact surface are aligned via an adjustment mechanism on the head structure. In illustrated embodiments, the adjustment mechanism is configured to adjust a position of the workpiece relative to the raised contact surface.
    Type: Application
    Filed: October 8, 2013
    Publication date: April 9, 2015
    Inventors: Marc Perry Ronshaugen, Gordon Merle Jones, Robert Edward Chapin
  • Publication number: 20150099984
    Abstract: A system for optical coherence tomography includes a source of optical radiation, an optical fiber, and a graded index fiber attached to a distal end of the optical fiber. The optical fiber and the graded index fiber are together configured to provide a common path for optical radiation reflected from a reference interface at a distal end of the graded index fiber and from a target.
    Type: Application
    Filed: March 15, 2013
    Publication date: April 9, 2015
    Applicant: AVINGER, INC.
    Inventor: Manish Kankaria
  • Publication number: 20150099095
    Abstract: A substrate having an antimicrobial surface. The texture of the surface which has exposed metal e.g., copper or copper alloy contributes to the antimicrobial properties. Cavities or depressions in the surface can be coated or partially coated with an organic polymer, and the polymer can contain antimicrobial agents. Methods of preparing a coated surface, and uses are described.
    Type: Application
    Filed: October 10, 2014
    Publication date: April 9, 2015
    Inventors: Valerian PERSHIN, Thomas PORTMAN, Javad MOSTAGHIMI
  • Patent number: RE45468
    Abstract: A method of polishing a metal layer comprising the following steps. A structure having an upper patterned dielectric layer with an opening therein is provided. A barrier layer is formed over the patterned upper dielectric layer and lining the opening. A metal layer is formed over the barrier layer, filling the opening. A first polish step employing a first slurry composition is conducted to remove a portion of the overlying metal layer. A second polish step employing the first slurry composition is conducted to: polish the partially removed overlying metal layer; and to expose portions of the barrier layer overlying the patterned upper dielectric layer. A third polish step employing a second slurry composition is conducted to remove the exposed barrier layer portions and exposing underlying portions of the patterned upper dielectric layer. A fourth polish step employing the second slurry composition and BTA is conducted to buff the exposed upper dielectric layer portions.
    Type: Grant
    Filed: July 27, 2006
    Date of Patent: April 14, 2015
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Yi-Chen Chen, Ching-Ming Tsai, Ray-Ting Chang