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| Number | Title | Issue Date |
| 8061717 | Positioning and clamping device for tools and/or workpieces A positioning and clamping device or tools and/or workpieces, comprising a base body, a piston arranged such as to be displaceable in the base body, a pin which may be connected to the piston and at least one locking mechanism, for locking the positioning and clampi... | 11/22/2011 |
| 7770900 | Chuck The invention pertains to a chuck for detachable connection of two machine parts, with a chuck assembly arranged on or in a first machine part and a cooperating complementary part on or in a second machine part. The chuck assembly contains an axially displaceable te... | 08/10/2010 |
| 7429049 | Clamping apparatus for fixing a collet to a chuck A clamping apparatus comprises a chuck member and a collet member that includes, at its rear side, a peripheral shoulder. The top side of this shoulder is provided with a thrust surface adapted to engage radially displaceable clamping balls of the chuck member. The ... | 09/30/2008 |
| 7251917 | Methods and arrangements for securing fabric An arrangement for securing fabric relative to a framework comprising a framework, a groove in the framework, and a locking spline for being received into the groove in the framework whereby a fabric panel can be retained relative to the framework by an insertion of... | 08/07/2007 |
| 7167775 | Robotic vacuum cleaner An autonomous robot, that is for example, suitable for operations such as vacuuming and surface cleaning includes a payload configured for vacuum cleaning, a drive system including a steering system, a navigation system, and a control system for integrating operatio... | 01/23/2007 |
| 7093998 | Mounting device A mounting device (1) for mounting a component (2), preferably a Bowden cable, in or at a bore (3) or a notch (4) in a mounting wall (5), comprising a hollow cylinder (6) attached to the component (2) and insertable i... | 08/22/2006 |
| 6799919 | Coupling with enhanced concentricity maintainability and torque handling capability A coupling for torque transmitting devices is disclosed. The coupling employs polygonally shaped first and second ends having retaining balls held within each of the corners of the polygon. Pin cones are provided in each of the first and second ends. Actuation of a ... | 10/05/2004 |
| 6760961 | Piston machining An apparatus and method of utilization thereof is provided for machining pistons of reciprocating piston internal combustion engines. The piston is held in a work station by its interior cavity and the oil rings, oval side surface and hinge pin bore are machined on ... | 07/13/2004 |
| 6612791 | Clamping device for clamping a rotating machine element and a balancing machine having comprising such a clamping device A clamping device for clamping a machine element (3), in particular a tool holder for a drilling, milling or grinding tool or the like, which rotates about an axis of rotation (9), comprises a base body unit (11) which has a receiving opening (21) which i... | 09/02/2003 |
| 6412766 | High precision expanding mandrel with cylindrical or compensated gripping The invention provides a mandrel comprising a shaft (1) the forward end of which has the shape of a forward pointing truncated cone (7), an expanding sleeve (15) constituted by a ring provided with longitudinal slits designed to slide over said conical fo... | 07/02/2002 |
| 6311967 | Moulding tool for the manufacture of precision articles The invention relates to a process for the production of a clamping means for clamping a component (20) in a holder (16), especially for the production of moulding tools for the manufacture of precision articles. Spring-action clamping elements (72), for ... | 11/06/2001 |
| 5997011 | Retaining device, in particular for a workpiece A retaining device has clamping elements arranged on a housing that act as detachable locking elements and can be radially displaced when a pressure member located in the housing is axially displaced. First and second pressure media can act upon the press... | 12/07/1999 |
| 5851091 | Tool mount with ejector A tool mount for a tool holder having a tubular collar with an inwardly projecting rim has a shaft centered on an axis and formed with an axially centered main bore having an outer end formed as a seat complementarily engageable around the collar and a tr... | 12/22/1998 |
| 5816581 | ID chuck providing workpiece registration and operable by push or pull to attach a workpiece An ID chuck is defined by a rotating tube pushed or pulled by a left hand cylinder and piston. The tube moves an extender cooperating with a plug surrounded by a set of collet fingers. The fingers move radially to lock a workpiece against a registration s... | 10/06/1998 |
| 5613692 | Collet A circular flexible collet that provides a 360 degree gripping engagement with a cylindrical workpiece and which is operable by an actuator member incorporated in a workpiece chuck. The collet may be constructed as an internal collet for gripping engageme... | 03/25/1997 |
| 5595376 | Mandrel for processing a workpiece with an internal spline A mandrel for use in processing a workpiece having an internal spline. The mandrel includes an expandable collet having an upper expandable spline-shaped portion and a lower portion with a groove adapted to receive two half-keys. Inside the expandable col... | 01/21/1997 |
| 5551710 | Universal modular sleeve-clamp systems A universal sleeve-clamp for using interchangeable jaw pieces to clamp a workpiece has a sleeve with a plurality of radially moveable elements. Features are provided for locating and attaching the jaw pieces to the radially moveable elements so that, when... | 09/03/1996 |
| 5448834 | Telescope sight collimating device A telescope sight collimating device including a laser aimer, a longitudinal center axle at one end of the aimer sleeved with a split sleeve and threadably engaged with a lock nut at its free end for positioning the device in the barrel of the gun, a tape... | 09/12/1995 |
| 5396708 | Gun bore arbor A self-centering bore arbor device is disclosed which is self-aligning when inserted into the barrel of a shotgun and to which can be mounted a bore scope in a parallax relation with the central axis of the gun barrel. The self-centering property of this ... | 03/14/1995 |
| 5346344 | Cutting area An interface 1 between a tool carrier 5 and a clamping shaft 3 of a machine tool holding the tool carrier is proposed comprising a hollow fitting pivot 7 which is provided at the tool carrier and is provided with a first clamping surface 19 on its inner w... | 09/13/1994 |
| 5303939 | Apparatus for and method of picking up flexible disk center hub The present invention relates to an apparatus for and method of picking-up a center hub used with a flexible disk at a step of fixing the center hub and flexible disk to each other or at a similar step in the flexible disk cartridge manufacturing process.... | 04/19/1994 |
| 5275424 | Disk holding apparatus An apparatus for holding a disk with a central hole has a front rod which is received in a chuck so as to be able to move along its axis. The chuck is slidably received between the inner surface of a cylinder and the outer surface of the front rod. The fr... | 01/04/1994 |
| 5012566 | Drilling and expanding tool for removing carburetor seal plugs A tool for removing seal plugs from a carburetor baseplate having a shaft and collet arrangement in which the shaft is formed at one end by a drill bit. The members are concentrically aligned within an outer holder member which also functions as a drill g... | 05/07/1991 |
| 4978262 | Tool coupling between a toolholder and a machine spindle A tool clamping device for machine tools comprises a draw bar that is axially displaceable inside a machine spindle and a locking element arranged in cooperation with the draw bar. The device becomes secured to a toolholder by effecting a relative movemen... | 12/18/1990 |
| 4924051 | Split grip tip for mounting of electrode blanks An expandable, grip tip having a head with a knurled peripheral surface is expanded within a predrilled opening in a graphite electrode blank to secure the grip tip to the electrode blank. The grip tip is then mounted in an electrode shank, with the elect... | 05/08/1990 |
| 4875693 | Arbor assembly Arbor assembly includes a fixed arbor section and a removable arbor section each including a pair of longitudinally spaced apart cylindrical pilot surfaces of different diameters spaced the same distance apart. Between the pilot surfaces on each arbor sec... | 10/24/1989 |
| 4817762 | Dispenser handle for rolls of flexible sheet material A dispenser handle for controlling the speed with which flexible sheet material is stripped from a roll. The handle includes a spindle carrying at one end locking means insertable into the overside opening of a hollow cylindrical core on which the sheet m... | 04/04/1989 |
| 4795106 | Clamping head for winding cores A clamping head is equipped with angular spreading bodies which engage a winding core. Impingement of the winding core end face on a stop moves the spreading bodies longitudinally on a bevel of the clamping head core against spring force, thereby spreadin... | 01/03/1989 |
| 4776834 | Centrifuge Centrifuges are known which have a working head placed on a shaft driven by a motor, and in which a longitudinally slotted sleeve is disposed between the shaft and a central bore in the working head. This sleeve is expanded against the bore by a conical s... | 10/11/1988 |
| 4768791 | Expandable grinding plug A workpiece-holding plug has six sector-shaped segments that expand outwardly in a radial direction when in use and in contact with a lathe center. The segments have tapered outer wall portions which assume a precise cylindrical shape when the plug is exp... | 09/06/1988 |
| 4767125 | Expansion chuck A chuck for grasping the internal cylindrical surface of a glass tube. An elongate tubular support structure with two sets of circumferentially spaced fingers or inserts that move radially outward under the influence of axial movement of a centrally posit... | 08/30/1988 |
| 4750269 | Firearm sight-in device A device for sighting-in firearms is disclosed. The device comprises a telescope connected to a mandrel. The mandrel is sized to fit within a variety of calibers of gun bores. The mandrel has a tapered sleeve with a conical shape which centers the outside... | 06/14/1988 |
| 4688321 | Method for securing a workpiece to a fixture A device for securing a workpiece to a fixture for performing machining operations includes a tubular, radially expansible mandrel. The mandrel is carried in a passage provided in the fixture and extends into a hole provided in the workpiece. An expander ... | 08/25/1987 |
| 4649989 | Device for testing and/or repairing steam generator tubes A steam generator having a steam generator chamber, a tube plate bordering the chamber, tubes terminating in the tube plate being accessible through the steam generator chamber, a tubular column in the steam generator chamber having an end facing toward t... | 03/17/1987 |
| 4541465 | Expandable woodturning chuck The present invention relates to an expandable chuck for faceplate woodturning. The chuck is of simple construction for attachment to a conventional faceplate. A frusto-conical plug drawn towards the faceplate expands a radially segmented annular member. ... | 09/17/1985 |
| 4534116 | Adapter for boresight telescope A boresighting instrument which comprises a muzzle end adapter having a frustro conical outer periphery adapted to be inserted into the muzzle end of a barrel threadably receiving a central shaft, a sleeve is coaxially coupled to the muzzle end adapter an... | 08/13/1985 |
| 4511153 | Chucking accessory A chuck accessory for grasping a tubular workpiece at the interior wall by action originating in the jaws of a conventional three-jaw chuck makes use of an internal split jaw mandrel, the jaw elements of which are forced into outwardly directed engagement... | 04/16/1985 |
| 4505487 | Dead stop for collet chucks A dead stop for workpiece positioning in collet chucking machinery. A fixed length stop is provided within a machine collet for establishing workpiece position independently of the collet clamping function and workpiece diameter.... | 03/19/1985 |
| 4466576 | Metering drum for filamentary material The metering drum for the weft thread of a weaving machine has a circumferential surface of rubber which is clamped between two supporting rings. The supporting rings may be movable axially or rotatably relative to each other so as to expand or constrict,... | 08/21/1984 |
| 4434686 | Adjusting apparatus To adjust the relative positions of two elements mounted for guided sliding relative motion in a first direction and in a contact plane thereof, a cylindrical adjusting tool is fitted into a reference bore in one element and rotationally and non-slippably... | 03/06/1984 |
