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Class 279/2.09 - Expanding jaws via mechanical connection


Subclass of Class 279 - Chucks or sockets
Definition: A device wherein the means for making the connection is
No. of patents: 48
Last issue date: 04/10/2012


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NumberTitleIssue Date
8152173Clamping apparatus and method
A method and apparatus are provided, for clamping a fiber placement tool to a fiber placement machine, along a rotational axis of the fiber placement machine, through use of a clamping apparatus having a plurality of drive lugs extending axially from the machine, an...
04/10/2012
7367238Test apparatus using a pneumatic collet and method to clamp a bar
A pneumatic collet assembly has a housing, a piston, a collet, and ball bearings. The piston is disposed within the housing. A bore within the piston receives the collet. The collet has a base and fingers. The fingers of the collet define a center channel or bore co...
05/06/2008
7367038Data storage disc holder having central shaft held by spring loaded clamps against inclined surfaces when in disc gripping configuration
A disc holder for holding at least one media storage disc during rotation includes a central hub arranged for rotation about a central axis. The hub includes resilient centering arms which are arranged to provide an outwardly directed centering force on an internal ...
04/29/2008
7311312Chuck drawing a work against the chuck-face
A chuck body is made up of axially movable plungers and jaws, in which the jaw has a master jaw body obliquely arranged with respect to an axis of the chuck body, the jaw also has a front face of the master jaw body and a rear end face of a master jaw head for restr...
12/25/2007
7278150Disc-chucking mechanism having contractable/expandable O-ring for fixing disc
A chucking mechanism which reliably attaches and detaches a disc with high precision. The chucking mechanism includes a shaft for supporting the disc and having a tapered recess, a tapered cone adapted to fit in the tapered recess, and a piston for moving a rod, att...
10/02/2007
7216355Disk-chucking apparatus for disk drives
The disk-chucking apparatus comprises a chuck base having a fitting hole formed through the center thereof for allowing a driving shaft of the motor, and a plurality of first and second disposition parts formed at the outer surface. A plurality of chuck pins are dis...
05/08/2007
7204451Winding core and associated method
A winding core, a winding core assembly for winding web materials, and a method are provided. The winding core includes a hollow cylindrical core member having an inner surface, an outer surface, and first and second ends. A chuck-engaging layer is located on the in...
04/17/2007
7108465Jig plate
An end surface 820 of a work 80 gripped by a chuck 50 equipped to a main spindle of a lathe-type machine tool is machined, and at the same time has a screw hole 830 formed thereto. The jig plate 60 is provided with a main body 6...
09/19/2006
7059457Expansion motor
The present invention is a unique motor comprising a containment chamber having thick walls surrounding a thin wall, is created when a plug is fusible joined. An inlet port and preferably a purging port are located in the thick walls. A motion is created when said e...
06/13/2006
7036827Three directional opening/closing chuck
Cylinder mechanisms are provided for driving three jaw members each of which includes a cylinder hole having a long circular cross section, a piston which slides in the cylinder hole and has a long circular cross section, and a piston rod extending from the piston. ...
05/02/2006
6863491Catch-pin water support for process chamber
A new and improved wafer support for supporting wafers in a process chamber such as an edge bead removal (EBR) chamber. The wafer support comprises multiple wafer support units each including a gripper block that engages an edge portion or bevel of the wafer. The gr...
03/08/2005
6491304Cylinder having guide
In a cylinder having a piston 2 and a cylinder body 3 having a piston chamber 4 in which said piston 2 is slidably accommodated, a guide shaft 9 extending toward the piston chamber 4 is provided on a head-side end wall 8 of the cylinder body 3, and the pi...
12/10/2002
6467775Clamping device for objects, for example for workpieces to be treated
A clamping device for objects, has a housing, at least two clamping jaws which is radially displaceably guided relative to a longitudinal central axis, actuating elements associated with the clamping jaws for actuating the latter, clamping pistons displac...
10/22/2002
6378877Apparatus for clamping a work piece
The apparatus comprises a chuck member to be mounted within the operating area of the machine tool and a work piece carrier that can be put onto the chuck member and clamped thereto. First positioning members provided on the chuck member and second positi...
04/30/2002
6367814Apparatus for clamping a work piece
The apparatus for clamping a work piece in a well defined position within the operating area of a machine tool comprises a chuck member to be mounted within the operating area of the machine tool and a work piece carrier that can be put onto the chuck mem...
04/09/2002
6116617Multiple-jaw chuck for a large workpiece
A chuck has a chuck body, an actuating element limitedly axially displaceable in the body, a first set of guide pistons axially fixed in the actuating element, angularly spaced about the axis, and each forming a guide passage extending at a small acute an...
09/12/2000
5997011Retaining 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
5688327Chuck assembly having a controlled vent
A chuck assembly for engaging the inner surface of a hollow substrate including: (a) a body defining a hole, wherein the hole is positioned to be in communication with the air inside the substrate; and (b) a gas pressure regulating apparatus coupled to th...
11/18/1997
5326113Single acting core chuck
The pneumatically actuated core chuck described and shown has a compression ram movable with respect to a sleeve to force jaws to expand outwardly for engagement of the interior of a core of web material. The jaws are pivotally mounted by means of links e...
07/05/1994
5186477Drum chucking device
Disclosed is a chucking device for chucking a drum to keep it vertical while the drum is immersed in a coating liquid to be coated with the coating liquid. The chucking device comprises upper and lower pressure members having tapered peripheral surfaces a...
02/16/1993
5174585Adjustable fastening device
The invention relates to an adjustable fastening device e.g. for an axially-shaped, tubular, flat or spherical tool or working piece or machine part or a like of a desired shape. The device includes: a body section (1), a clamping means (2), mounted withi...
12/29/1992
4999002High speed chuck apparatus
A chuck assembly for high speed operations is provided. The workpiece gripping and releasing functions of the chuck are carried out pneumatically by a nonrotating air tube assembly extending through a bore in a machine tool to which the rotating chuck is ...
03/12/1991
4898397Segmented disk clamp
A clamp for attaching a plate such as a memory disk onto a spindle comprising a segmented clamp that may be withdrawn within the projected boundary of the interior hole in the disk for convenient unloading and a two part piston clamping means that applies...
02/06/1990
4881745Mechanical plate clamp
A clamp for supporting a plate such as a memory disk which comprises a housing with a supporting surface in contact with one side of the plate surface and a mechanism for applying a segmented ring to the second side of the plate surface and a fluid pressu...
11/21/1989
4773656Clamping shaft
A clamping shaft for clamping a surrounding socket component comprising: a tubular shaft characterized by a tubular body provided with radially spaced slots through which expansion wedges may be extended and retracted for engagement with and disengagement...
09/27/1988
4715553Roll core holding device
The present invention relates to a roll core holding device equipped with a roll core release mechanism which can facilitate to automatically and certainly release the empty roll core from a rotary printing machine. The roll core holding device for each e...
12/29/1987
4712720Device for mutually centering and clamping two pipe bodies to be welded to one another
Device for mutually centering and clamping two pipepieces which are to be welded to one another, which device, for each of the workpieces (50, 51), has a clamping unit on both sides of a welding area (9) provided with an inert gas supply (27). Each clampi...
12/15/1987
4688321Method 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
4589667Vacuum compatible colleting spindle
Apparatus is provided in which a colleting and spindle assembly for lifting and rotating a substrate mounting chassis within a high vacuum sputtering chamber is mounted. Lifting and clamping action is accomplished utilizing rolling contact between surface...
05/20/1986
4571129Mandrel assembly
An apparatus and method is provided for an air bearing support of a rotatable tooling bar, such as a boring bar. One or two mandrels may be provided for this tooling bar to form a complete mandrel assembly with the tooling bar. An air pressure expansible ...
02/18/1986
4565476Internal hydraulic clamp
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 ...
01/21/1986
4509298Pneumatic clamp mounting for a disc
Pneumatically operated clamping apparatus provides free floating mounting of a disc upon a shaft during grinding and polishing of the disc....
04/09/1985
4485654Hydraulic chuck for threaded tube
A threaded coupling chuck device for use with a female threaded tube, including a chuck body, adaptor means, probe means, seal means, and port means. The body has an axis of rotation and shaft means for rotation, centered about said axis. Adaptor means ar...
12/04/1984
4467631Apparatus for splining thin-wall power transmission sleeves
Thin-wall sleeve splining apparatus (10) is disclosed as including a loader (22) having a radially expandable mandrel (24) which is inserted within a dual ended thin-wall sleeve (14) to secure the sleeve in preparation for splining one of its ends (12,16)...
08/28/1984
4465244Expanding core chuck
For use in a papermaking machine or paper converting mechanism having an arrangement for winding a roll of paper onto a core at high speed, an expanding core chuck for insertion into a roll core which includes a spindle mounted for rotation within a housi...
08/14/1984
4422653Chuck for tubular workpieces
A chuck is provided with a cylindrical workpiece gripping element having a jacket and an article gripping member and a resilient rubber-like sleeve sandwiched between. The jacket and gripping member are partially segmented into longitudinal strips so that...
12/27/1983
4416459Collet chuck for splined workpieces
A chuck for splined workpieces includes at least two collets, the resilient fingers of which are circumferentially interdigitally related. The work-engaging surfaces of circumferentially adjacent fingers of the chuck are spaced apart a distance at least s...
11/22/1983
4393674Hydraulic chuck device for engagement with the inside of a tube
A hydraulic chuck device for use with the inside of a tube. Included is a body defining a chamber and a piston slideably mounted in said chamber. An axially centered stem means is mounted at one of its end on said piston and has a passage along its axis, ...
07/19/1983
4391451Expansible chuck assembly
An air-mechanical expanding chuck for supporting a core for winding webs. A cylindrical chuck body defines a chamber which contains a piston with its piston rod extending out of the chamber for insertion into the core. The piston rod forms a tapered arbor...
07/05/1983
4373411Expansible mandrel
An expansible mandrel for loading and unloading a work member while the mandrel is rotating, comprises a frame having an abutment and a mandrel body slidable in the frame. Two slide members are mounted for radial movement within first recesses in the body...
02/15/1983
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