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Class 451/24 - Hydraulically driven


Subclass of Class 451 - Abrading
Definition: Subject matter actuated by fluid pressure means.
No. of patents: 149
Last issue date: 02/05/2008


1        
NumberTitleIssue Date
7326102Apparatus for lapping thin film magnetic heads
A lapping method and apparatus is provided that increases the yield rate in the magnetic head slider manufacturing process. According to the invention, an apparatus for lapping thin film magnetic heads includes a jig block and a lapping plate. The jig block includes...
02/05/2008
7315252Assembly machine operator interface with multiple color light indicators
An assembly machine display has an image representative of a workpiece to be assembled using the machine. Multi-colored indicator lights mounted behind a display substrate are associated with areas on the workpiece image that require a process to be completed by a m...
01/01/2008
7294046Method for dressing a grinding worm
A method for dressing an essentially cylindrical grinding worm on a machine suitable for continuous generation grinding in the diagonal method. The dressing tool is an essentially cylindrical gear wheel, having an abrasive coating on the surface that effects the dre...
11/13/2007
7264430Magnetically levitated high-speed spindle for shaping irregular surfaces
A magnetically levitated high-speed spindle assembly (20) is provided for forming non-circular holes (22) in workpieces (24) or non-circular surfaces on pins. The non-circular holes (22) can be formed with dimensionally varying axial traj...
09/04/2007
7249498System and method for determining tire force
A system and method for determining the magnitude of a force acting on a tire are disclosed. Further, a sensor and a tire suitable for use in the system and method are also disclosed. The system comprises: a tire strain sensor mounted on the tire, for detecting a ti...
07/31/2007
7234216Method for support control in machine tools
Method for support control in machine tools where it is controlled whether an object is arranged correctly on a support surface in the machine tool, where a duct system is used which ends in the support surface, and conducts a medium, and can be pressurized, the fin...
06/26/2007
7182680Apparatus for conditioning processing pads
Embodiments of a flexible pad conditioner for conditioning a processing pad are provided. The pad conditioner includes an arc-shaped member having an abrasive bottom surface configured for conditioning the processing pad. Means are provided to apply a downward force...
02/27/2007
7175506Tool unit for ultrasonically assisted rotary machining
The tool unit for the ultrasonically assisted rotary machining of a workpiece comprises a converter (23) including at least one electroacoustic transducer (22) for generating and transmitting ultrasonic oscillations, a tool (30) that is coupled ...
02/13/2007
7147542Centerless grinder
A centerless grinder for grinding an elongated workpiece includes a grinding wheel having a working surface with a plurality of raised areas extending circumferentially around at least a portion of the working surface. A platform is provided having an elongated top ...
12/12/2006
7125477Contacts for electrochemical processing
Systems and methods for electrochemically processing. A contact element defines a substrate contact surface positionable in contact a substrate during processing. In one embodiment, the contact element comprises a wire element. In another embodiment the contact elem...
10/24/2006
7118452Pneumatically actuated flexible coupling end effectors for lapping/polishing
Methods and apparatus for end effectors for performing surface lapping using a robotic system are provided. In one embodiment, a lapping system includes a robotic arm and a pneumatic end effector unit. The pneumatic end effector unit includes a first base attached t...
10/10/2006
7074111Surface preparation device and method
To prepare a surface with a surface preparation device, an apparatus including a mount, a platform, and a suspension system is utilized. The mount supports and positions the surface preparation device. The platform moves the apparatus. The suspension system is dispo...
07/11/2006
7033250Method for chemical mechanical planarization
An invention is provided for a chemical mechanical planarization apparatus. The apparatus includes a cylindrical frame, a polishing membrane attached to an end of the cylindrical frame, and a pad support disposed within the cylindrical frame and below the polishing ...
04/25/2006
7025660Assembly and method for generating a hydrodynamic air bearing
A method and assembly for generating a hydrodynamic air bearing is described, wherein at least one rotor is rotated to force air through channels defined in a platen located adjacent to a linear belt and the forced air is directed to the linear belt. The method incl...
04/11/2006
7021992Tire face grinder assembly
A face grinder assembly is disclosed for removing irregularities from tire. The face grinder assembly includes an outer frame and a slide frame slidably attached to the outer frame. The slide frame is capable of vertical movement relative to the outer frame between ...
04/04/2006
7004825Apparatus and associated method for conditioning in chemical mechanical planarization
A conditioning apparatus for use in a CMP system is provided along with an associated method of operation. The conditioning apparatus includes rotation mechanics and oscillation mechanics. The rotation mechanics are capable of rotating a shaft which causes a holder ...
02/28/2006
7001258Polishing jig for rolling mill backup roll bearing
A polishing jig of a hydraulic integral system is improved to increase efficiency. A polishing jig 1 for bearing for use in back-up roll of rolling mill including a shaft member 2 on which an inner ring 104 of a bearing 100 for use in bac...
02/21/2006
6976906Apparatus for reducing compressed dry air usage during chemical mechanical planarization
A chemical mechanical planarization (CMP) system is provided. The system includes a polishing surface and a platen disposed along an underside of the polishing surface. A retaining ring surrounds the platen. The retaining ring includes a lower annular sleeve and an ...
12/20/2005
6974362System and method for automatically compensating for unbalanced resistance forces
A balancing method and apparatus is used for dynamically balancing an out of balance condition in a rotating body caused by resistance forces acting tangentially to the body. A device having a rotatable component and automatic or dynamic balancing includes a housing...
12/13/2005
6969305Polishing apparatus
A polishing apparatus for polishing a substrate comprises a turntable having a polishing surface, a substrate holder for holding a substrate and bringing the substrate into contact under pressure with the polishing surface, a dresser including a dresser tool adapted...
11/29/2005
6966825Wall/roof polisher
This invention discloses a large-scale wall polisher that is operated by a single operator and applicable to polish different rooms, external walls, and ceilings and with dust absorption and positioning functions; in addition, as a complement to the large-scale mach...
11/22/2005
6964599Method and apparatus for holding or mounting an object
Disclosed herein is a holding device, which includes a volumetrically controllable material and a volume controller in operable communication with that material. The volume controller is configured to subject the material to a condition that causes a physical change...
11/15/2005
6945844Methods for dynamically controlling a semiconductor dicing saw
A saw cutting pattern is dynamically established for a semiconductor dicing saw based on detection of the saw blade contacting a wafer or a portion of a wafer. The dynamic cutting pattern may terminate cuts if the saw blade no longer contacts the wafer or a portion ...
09/20/2005
6942556Polishing jig for bearing for use in back-up roll of rolling mill
A polishing jig of a hydraulic integral system is improved to increase efficiency. A polishing jig 1 for bearing for use in back-up roll of rolling mill including a shaft member 2 on which an inner ring 104 of a bearing 100 for use in bac...
09/13/2005
6939212Porous material air bearing platen for chemical mechanical planarization
A platen for use in chemical mechanical planarization (CMP) systems includes a platen plate that has at least one recess defined therein. The at least one recess has an input port formed therein. A porous material is disposed in the at least one recess. The porous m...
09/06/2005
6926589Chemical mechanical polishing apparatus and methods using a flexible pad and variable fluid flow for variable polishing
The present invention relates to methods and apparatus that allow for chemical mechanical polishing using a flexible pad and variable fluid flow for variable polishing. ...
08/09/2005
6905394Apparatus and method for polishing row bars
An apparatus and a method for polishing a row bar including magnetic head sliders. A lapping surface plate is rotatable, and a housing is movable above the lapping surface plate. A jig is secured to the housing for holding the row bar. The jig is formed by an elonga...
06/14/2005
6852002Apparatus and methods for Z-axis control and collision detection and recovery for waterjet cutting systems
This invention relates to apparatus and methods for z-axis control and collision detection and recovery for waterjet and abrasive-jet cutting systems. In one embodiment, an apparatus includes a linear rail, a slide member coupleable to a cutting head and slideably c...
02/08/2005
6712670Method and apparatus for applying downward force on wafer during CMP
An apparatus for applying a wafer to a polishing belt during a CMP operation includes a spindle having an upper end and a lower end. A wafer carrier is coupled to the lower end of the spindle. A linear force generator is disposed at the upper end of the spindle. A l...
03/30/2004
6709315Auto feed system for compressed propellant tools and pressure compensating valve therefore
An automatic feed system 10 is provided for advancing a hydraulically powered work head into a workpiece being cut. A hydraulic fluid powered work head motor 40 drives a diamond drill cutting tool 46 or other cutting tool to cut the workpiece, s...
03/23/2004
6685536Method for grinding convex running faces and outside diameters on shaft-like workpieces in one set-up and grinding machine for carrying out the method
The invention relates to a method for grinding convex running surfaces and exact outside diameters on undulated workpieces. In a clamping, a first convex running surface is ground on a discoid partial section of an undulated workpiece during a first grind...
02/03/2004
6669533Rail profile grinding machine
The grinding machine comprises a grinding head with a rotary abrasive tool, carried by a chassis equipped, at its ends, with rollers for running and guiding on the rail that is to be ground. A balancing assembly, resting on the other rail of the track, is...
12/30/2003
6656024Method and apparatus for reducing compressed dry air usage during chemical mechanical planarization
A retaining ring is provided. The retaining ring includes a lower annular sleeve having a base. The base has an inner sidewall and an outer sidewall extending therefrom. The lower annular sleeve has at least one hole defined therein. An upper annular slee...
12/02/2003
6648731Polishing pad conditioning apparatus in chemical mechanical polishing apparatus
A polishing pad conditioning apparatus in a chemical mechanical polishing apparatus, wherein the conditioning apparatus includes a conditioning plate which maintains a predetermined relative velocity with respect to the polishing pad, extends from a cente...
11/18/2003
6638138Arrangement of grinding modules with grinding tools in track grinders
An arrangement of grinding modules in a track grinder wherein a radial mismatch in narrow track bend radii can be considered in an exact manner without occurrence of constraining forces, enabling reprofiling to be reproduced in a simple manner. The arrang...
10/28/2003
6612904Field controlled polishing apparatus
A polishing tool includes a polish pad, a bladder, a fluid, and a flux guide. A bladder containing fluid supports the polishing pad that is positioned adjacent to a surface to be polished. Flux guides positioned along a portion of the bladder direct a fie...
09/02/2003
6607426Polishing apparatus
A dresser unit including a dresser 20 and a driving shaft 21 for rotationally driving the dresser 20 is operatively mounted to a dresser supporting mechanism so that the dresser unit can be moved up and down freely with respect to the dresser supporting m...
08/19/2003
6572446Chemical mechanical polishing pad conditioning element with discrete points and compliant membrane
A pad conditioning assembly includes a conditioner head with an end effector movable into contact with a polishing pad,a plurality of downwardly-projecting movable conditioning elements disposed at a bottom of the end effector; and a compliant backing mem...
06/03/2003
6540586Apparatus and methods for collision detection and recovery for waterjet cutting systems
This invention relates to apparatus and methods for collision detection and recovery for waterjet and abrasive-jet cutting systems. In one embodiment, an apparatus includes a first mount member coupleable to a controllably positionable mounting portion of...
04/01/2003
6533640Ultra high pressure abrasive waterjet cutting apparatus
An ultra high pressure abrasive waterjet cutting apparatus for cutting nuclear reactor structural components is described. The cutting apparatus includes an ultra high pressure abrasive waterjet (UHP) cutting nozzle, movably coupled to a single axis manip...
03/18/2003
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