| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 279900100 |
SOCKET TYPE
| 298 |
| 279142000 |
ACCESSORY OR COMPONENT
| 86 |
| 279128000 |
WITH MAGNETIC OR ELECTROSTATIC MEANS
| 47 |
| 279400010 |
WITH FLUID-PRESSURE ACTUATOR
| 42 |
| 279110000 |
RADIALLY RECIPROCATING JAWS
| 36 |
| 279200010 |
EXPANDING
| 34 |
| 279003000 |
VACUUM
| 26 |
| 279126000 |
WITH MEASURING, INDICATING OR CONTROL MEANS
| 24 |
| 279141000 |
MEMBER APPLIES AXIAL FORCE COMPONENT
| 19 |
| 279133000 |
WITH CENTERING MEANS
| 11 |
| 279140000 |
MEANS TO PREVENT JAW LOOSENING
| 10 |
| 279134000 |
SEPARATE CHUCK-ACTUATING POWER SOURCE
| 9 |
| 279125000 |
WITH SAFETY FEATURE | 5 |
| 20080238001 | Spindle Lock for a Hand-Held Combination Drill and Chisel Hammer - A spindle lock of a hand-held combination drill and chisel hammer has a gearbox housing and a countershaft rotatably supported in the gearbox housing about an axis of rotation. A locking plate is provided for selectively releasing and locking a rotational movement of the countershaft. Guide elements are disposed in the gearbox housing, wherein the locking plate is displaceably guided on the guide elements in the gearbox housing in a direction parallel to the axis of rotation of the countershaft. The guide elements have a guide rail arrangement wherein a part of the guide rail arrangement is provided on the gearbox housing and is integral with the gearbox housing. | 10-02-2008 |
| 20100283215 | Clamping device for machine tools - A clamping device comprising clamping jaws actuated by means of an axially adjustable draw rod, the clamping device comprising a servomotor with a changeover function, a driveline arranged between the servomotor and the draw rod as well as a bell in a rotating mounting that is coupled to the servomotor, the driveline configured as a two-piece gear train, the first piece arranged in a housing permanently connected to a rotor shaft of the servomotor. An input element and output element of the gear train being connected to the bell by the second gear train. | 11-11-2010 |
| 20110254236 | GROUNDED CHUCK - Improved reduction of static charge in spin chucks is achieved by providing one or more pin assemblies which are formed from chemically inert material and which include an electrically conductive inlay. | 10-20-2011 |
| 20120286481 | DEVICE AND PROCESS FOR LIQUID TREATMENT OF WAFER SHAPED ARTICLES - A spin chuck and a process of operating the same display improved resistance to backsplash by provision of a media collecting ring mounted on the spin chuck. The media collecting ring surrounds a wafer to be processed and includes a radially-inwardly extending upper portion having an obliquely-angled downwardly-facing surface positioned above an upper surface of a wafer held in the device. The device moreover includes a stationary chamber surrounding the spin chuck equipped with at least two superposed collecting baffles. During treatment, liquid collected by the media collecting ring is preferably discharged radially outwardly through a series of holes formed in the ring, so as to pass between a pair of the superposed collecting baffles of the chamber. | 11-15-2012 |
| 20130099454 | TOOL HOLDER - A tool holder for holding a cutting tool comprises a housing, a sleeve received in one end of the housing, a switch fastened in the other end of the housing, a cover fastened at an end of the housing adjacent to the sleeve to prevent the sleeve from being taken out of the housing, and an elastic member sleeved on the sleeve. The switch is electrically connected to a control system of a main spindle of a CNC turning machine and is applied for controlling the movement of the main spindle. The elastic member is compressed to elastically resist with the sleeve and generates an elastic force to make the sleeve move away from the switch, and the sleeve is slidably configured along the inner surface of the housing to contact the switch to stop the movement of the main spindle of the CNC turning machine. | 04-25-2013 |
| 279106000 |
PIVOTED JAW | 5 |
| 20080224426 | CHUCK WITH TRIAXIAL CONSTRUCTION - A chuck with triaxial construction comprises a receiving surface for a test substrate and arranged below the receiving surface: an electrically conductive first surface element, an electrically conductive second surface element electrically insulated therefrom, and an electrically conductive third surface element electrically insulated therefrom, and, between the first and the second surface element, a first insulation element and, between the second and the third surface element, a second insulation element. A chuck for very low current measurements which can be used to prevent the occurrence of leakage currents and a triboelectric charge and which is configured favourably in terms of production, is achieved because at least one of the electrically conductive surface elements is mechanically connected to at least one insulation element and has an elasticity that compensates for an expansion difference resulting from differences in different coefficients of expansion between a respective surface element and an adjoining insulation element. | 09-18-2008 |
| 20090108545 | SPIN CHUCK - The present invention is directed to a spin chuck for use in a process, such as a cleaning process and an etching process, performed while rotating a substrate. The spin chuck includes a spin head on which a substrate is placed, a driving part configured to rotate the spin head, and a fix bracket installed on the spin head and having a contact surface that is in contact with a flat surface of a flat zone of the substrate at a position corresponding to the flat zone to prevent a vortex caused by the flat zone. Since the fix bracket has the same shape as the flat zone of the substrate, an air current unbalance resulting from the flat zone is suppressed to uniformly inject etchants to a rear surface of the substrate. | 04-30-2009 |
| 20110266758 | OSCILLATING TOOL - A clamp arrangement for releasably securing an accessory to an oscillating power tool can include a tool body including a motor that drives an output member. A clamp assembly can include a first clamp member that moves relative to the accessory between a closed position wherein the clamp assembly retains the accessory and an open position wherein the first clamp member of the clamp assembly is offset from the accessory permitting removal of the accessory from the clamp assembly. A lever can have a user engagement portion and a pivot portion including a pivot axle. The lever can be pivotally coupled to the tool body about the pivot axle between a first position, wherein the clamp assembly is in the closed position and a second position wherein movement of the user engagement portion of the lever causes the clamp assembly to be moved to the open position. | 11-03-2011 |
| 20110266759 | OSCILLATING TOOL - A clamp arrangement for securing first and second accessories to an oscillating power tool can include a tool body including a motor that drives the first accessory. A clamp assembly can include a first clamp member that moves relative to the accessory between a closed position wherein the clamp assembly retains the first accessory and an open position wherein the first clamp member of the clamp assembly is offset from the first accessory permitting removal of the first accessory while the first clamp member remains coupled to the clamp assembly. The clamp assembly further includes a second clamp member that cooperates with the first clamp member to clamp the first accessory between the first and second clamp members. An auxiliary attachment surface is configured on the second clamp member and selectively connects with the second accessory while the first accessory is concurrently retained by the clamp assembly. | 11-03-2011 |
| 20130264783 | DEVICE FOR POSITIONING AND SUPPLYING FIXING ELEMENTS - The invention relates to a device for supplying and positioning fixing elements ( | 10-10-2013 |
| 279129000 |
BY CENTRIFUGAL FORCE | 3 |
| 20130214497 | SUBSTRATE ROTATION HOLDING APPARATUS AND SUBSTRATE PROCESSING APPARATUS - An aspect of one embodiment, there is provided a substrate rotation holding apparatus, including a substrate holding section configured to hold a substrate by sandwiching around an outer periphery end portion of the substrate with a disk shape by a plurality of holding members, each of the holding members having a contact surface with the substrate, the contact surface being a concave curvature surface, and a rotation driving section configured to rotate the substrate holding section. | 08-22-2013 |
| 20130249174 | FIXING DEVICE FOR WORKPIECE IN MACHINE TOOL AND MACHINE TOOL HAVING THE FIXING DEVICE - Wear of a sliding member is prevented or controlled in a portion of the sliding member at a specific angular position (phase) about an axis. A fixing device includes a chuck-actuating claw which rotates with a main spindle, and is displaced to open and close a chuck section, a rubber ring which rotates with the main spindle, and a bobbin (sliding member) which is provided to be movable between a first position and a second position along an axis direction of the main spindle, rotates with the rubber ring in contact with the rubber ring in the first position, rotates with the chuck-actuating claw while displacing the chuck-actuating claw in contact with the chuck-actuating claw in the second position, and does not have contact with both of the rubber ring and the chuck-actuating claw in a partial range between the first position and the second position. | 09-26-2013 |
| 20090072503 | SYSTEM FOR CENTRIFUGAL-FORCE COMPENSATING IN AN ELECTRIC MACHINING-CHUCK ACTUATOR - A chuck rotatable about an axis has an actuator system with a housing rotatable about the axis and connected to the chuck, a threaded rod in the housing, extending along the axis, connected to the jaws, and axially displceable to radially shift the jaws, an electric motor, a drive wheel rotatable about the axis on the housing and driven by the motor, and a harmonic drive. This drive has a wave generator rotationally fixed to the drive wheel, a flexspline surrounding the wave generator and having external teeth, and a ring gear fixed on the housing meshing with the ring gear, and normally rotating jointly with the threaded shaft, a threaded connection between the flexspline and the threaded rod. A sensor on the chuck detects an instantaneous rotation speed of the chuck, and a controller connected between the sensor means and the electric motor axially shifts the chuck in accordance with the sensed rotation speed. | 03-19-2009 |
| 279132000 |
COMPENSATION FOR ECCENTRICITY | 2 |
| 20080238002 | FLOATING CHUCK MECHANISM - A floating chuck mechanism provided at a workhead that is arranged at a processing apparatus for sandwiching a cylindrical-shaped workpiece by means of two center members along a rotational axis, the floating chuck mechanism causing the workpiece to rotate about the rotational axis and correcting an eccentricity between the rotational axis and a center of an outer diameter of the workpiece, includes a chuck body portion including plurality of clamp jaws for holding the workpiece from the outer peripheral side thereof, and a chuck base portion fixed to the workhead so as to rotate therewith, the chuck base portion including a fixed portion fixed to the workhead and a slide portion slidable along a slide surface perpendicular to the rotational axis. The chuck body portion is fixed to the slide portion and sliding along the slide surface so as to correct the eccentricity. | 10-02-2008 |
| 20140035241 | WORKHOLDING APPARATUS - A chuck assembly includes a chuck base configured to interface with a spindle of a machine tool, a cartridge including a receiving opening for receiving a workpiece to be worked using the machine tool, and clamping jaws disposed proximate to a working end of the chuck base to hold the cartridge therebetween. The cartridge further comprises a multi-axis clamping and locating assembly that simultaneously positions the workpiece and clamps the workpiece responsive to insertion of the workpiece into the receiving opening such that at least a portion of the workpiece that is to be worked via the machine tool is aligned with an axis of rotation of the chuck assembly. | 02-06-2014 |
| 279006000 |
ECCENTRIC | 2 |
| 20080284115 | Apparatus to secure a cylindrical object for laser processing - A device for holding an essentially cylindrical work piece ( | 11-20-2008 |
| 20090206559 | Eccentric collet chuck for CNC lathe adjustment the concentricity and misalignment - An eccentric collet chuck comprising: a clamp hexagons nut and a body shank having inner conical surface axis eccentric with outer body shank surface axis and rotate able within the stationary tool holder mounting socket, the eccentric collet chuck is design for easy adjustment of concentricity and misalignment between spindle axis of a lathe and turret tool holder axis. | 08-20-2009 |
| 279005000 |
ANGULARLY ADJUSTABLE OR INDEXING | 2 |
| 20090212506 | TOOL HOLDER - The present invention relates to a tool holder, adapted to hold a tool for working at least a portion of a work piece, which portion extends substantially in a plane. The tool has a working tip which is located in an apex position of the tool holder when the tool holder holds the tool. The tool holder comprises an arm which is pivotable around a first axis of rotation and a fastening device adapted to carry the tool. The fastening device is connected to the arm and the tool is pivotable around a second axis of rotation when the fastening device carries the tool. | 08-27-2009 |
| 20100084828 | INDEXING DEVICE FOR MACHINE TOOL - A cylindrical pressure-receiving member | 04-08-2010 |
| 279136000 |
FOR GEAR OR SPLINE MOLDING | 1 |
| 20120119452 | Diaphragm chuck - A diaphragm chuck with an operating element inserted in a chuck body and axially movable in relation to the chuck body, a diaphragm attached to a free end of the operating element with the diaphragm secured to the chuck body by its outer circumference, three base jaws in driving connection with the diaphragm, on each of which a centering surface is disposed in a concentric alignment with the axis of the operating element, three clamping jaws attached to the corresponding base jaws, by which a gear to be machined can be clamped and which make contact with the centering surface, and clamping pins, each allocated to one of the clamping jaws, radially aligned and arranged between two teeth of the gear in the clamped condition, such that the diaphragm chucks reliably clamps differently sized gears and gears with different numbers of teeth between the three clamping jaws. | 05-17-2012 |
| 279008000 |
LONGITUDINAL SCREW CLAMP | 1 |
| 20110260414 | POWER TOOL - An effective technique is provided for rationally clamping and holding various kinds of tool bits which can be selectively replaced with each other and attached to the driving shaft, in a power tool | 10-27-2011 |
| 279137000 |
MORE THAN ONE SET OF GRIPPING MEANS | 1 |
| 20080284117 | TOOL HOLDER AND MACHINE TOOL EQUIPPED WITH THE TOOL HOLDER - The present invention provides a tool holder interchangeably attached to a machine tool such as a combined machining lathe. A combined machining lathe | 11-20-2008 |
| 279139000 |
JAWS MOUNTED ON FLEXIBLE MEMBER; I.E., DIAPHRAGM | 1 |
| 20120286482 | DIAPHRAGM CHUCK AND MACHINE TOOL - A diaphragm chuck for a machine tool has a first clamping diaphragm and a second clamping diaphragm which is offset relative to the first clamping diaphragm along an axial direction. The first clamping diaphragm has multiple first chuck jaws and the second clamping diaphragm has multiple second chuck jaws, and the first and the second clamping diaphragms are detachably connected to one another. | 11-15-2012 |
