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| Number | Title | Issue Date |
| 5953687 | Method and apparatus for displaying active probe tip status of a coordinate measuring machine A CMM control system which presents a three-dimensional graphic representation to the operator showing the active probe tip recognized by the CMM software. The controller software determines whether a motorized probe head is present and the exact location... | 09/14/1999 |
| 5940180 | Laser interferometer measurement system for use with machine tools A measurement system for precisely measuring the distance between two points is disclosed. The measurement system includes a laser interferometer assembly having a beam splitter and a first reflector disposed to reflect a laser beam along a linear path. T... | 08/17/1999 |
| 5848947 | Split power transfer member A pair of sprockets for use in a double chain and sprocket coupling for transmission of torque between shafts which are in approximate axial alignment with each other, and the abutting ends of which are closely spaced. Each of the sprockets is formed as o... | 12/15/1998 |
| 5829932 | Machine alignment compensation actuator system A machine alignment compensation actuator system is disclosed. The system is designed to selectively orient the tool head of a machine tool to maintain the tool along a desirable axis of alignment. The system includes a framework and a machine slide assem... | 11/03/1998 |
| 5738483 | Lift and invert mechanism A mechanism for lifting from an operating position, inverting, and returning to the operating position a workpiece. The mechanism includes two drive devices, a linear drive which provides a continuous lifting force to a vertically movable member, and rota... | 04/14/1998 |
| 5676235 | Linear pallet stop A linear pallet stop smoothly decelerates a heavy pallet propelled by a conveyance system in a downstream direction and stops the pallet at a predetermined location. The linear pallet stop comprises a catch arm that is translatable and rotatable between t... | 10/14/1997 |
| 5556242 | Space frame for a machine tool A space frame system for use with a machine, such as a machine tool, is disclosed. The system as used with a machine tool includes a base and a machine component, such as a workpiece support, mounted to the base. A first space frame is mounted solely to t... | 09/17/1996 |
| 5538373 | Machine tool vibration isolation system A machine tool isolation system is disclosed. The preferred system includes a pair of platforms connected by a plurality of legs. A tool is typically connected to one platform, and a workpiece to the other. The legs are able to move one platform with resp... | 07/23/1996 |
| 5489168 | Metrology instrument arm system The present invention relates generally to a metrology framework for determining the position of a first object, such as an operator, relative to a second object when the first object is moved relative to the second object. The metrology framework compris... | 02/06/1996 |
| 5487315 | Rotational motion limit detector system and method A system for detecting a limit of acceptable rotation for a joint is disclosed. The system includes a support that supports the joint and keeps its pivot point substantially stationary with respect thereto. The system also includes an extensible leg conne... | 01/30/1996 |
| 5466085 | Gimbal assembly for six axis machine tool A pivotable joint usable, for instance, with a multi-legged machine tool, is disclosed. The basic design of the joint includes a central block to which is connected a first yoke pivotably mounted for motion about one axis. A second yoke is also pivotably ... | 11/14/1995 |
| 5462511 | Tool changer configured for use with machine tools The present invention is directed to an apparatus and method for moving tools between a storage structure and a machine tool. The apparatus includes a framework on which is mounted a linkage assembly comprising a plurality of individual links pivotably in... | 10/31/1995 |
| 5425544 | Bushingless workhead A bushingless workhead comprises a flexible drill collet inside a flexible chucking collet. The chucking collet has external frusto-conical surfaces on the ends thereof that mate with corresponding frusto-conical surfaces on a pair of pistons. The pistons... | 06/20/1995 |
| 5388935 | Six axis machine tool A machine such as a machine tool includes a pair of spaced platforms. One platform may mount an operator such as a tool in a spindle, and the other platform may mount an object such as a workpiece. The spaced platforms are joined by six powered and extens... | 02/14/1995 |
| 5367836 | Automatic drill loader An automatic drill loader is used with a drill grinding machine to automatically present drills to the drill grinding machine workhead for being ground thereat and to carry ground drills to a storage receptacle. The automatic drill loader comprises a maga... | 11/29/1994 |
| 5320265 | Connecting rod cracker Apparatus and method for cracking a connecting rod comprises long and short semi circular dies. The dies include self-contained means for biasing their flat surfaces together to enable them to be inserted through the connecting rod bore. The long die is s... | 06/14/1994 |
| 5274919 | Method of cracking a connecting rod Apparatus and method for cracking a connecting rod comprises long and short semi-circular dies. The dies include self-contained means for biasing their flat surfaces together to enable them to be inserted through the connecting rod bore. The long die is s... | 01/04/1994 |
| 5251739 | Automatic framing system An automatic framing system comprises at least one framing station located along a path. Workpiece carrying pallets are propelled along the path by draw bars. At each framing station, a critical lift lifts the workpiece from the pallet to a work station. ... | 10/12/1993 |
| 5246096 | Rotate/translate conveyor module A rotate/translate conveyor module enables a workpiece to be selectively rotated and translated between adjacent sections of a conveyor without having to be lifted above the plane of the adjacent conveyor sections. The rotate/translate conveyor module com... | 09/21/1993 |
| 5191958 | Automatic framing system An automatic framing system comprises at least one framing station located along a path. Workpiece carrying pallets are propelled along the path by draw bars. At each framing station, a critical lift lifts the workpiece from the pallet to a work station. ... | 03/09/1993 |
| 5179809 | Drill grinding machine A drill grinding machine employs independent servo motors for drill rotation, drill lift, and drill feed. The three motors are connected through respective suitable drive mechanisms to a tubular spindle that is rotatably mounted within a work head. The wo... | 01/19/1993 |
| 5177862 | Automatic assembly system An automatic assembly system transports workpieces to a work station whereat the workpieces are processed into an assembled product. The automatic assembly system conmprises a monorail that defines a path above the work station. A trolley travels along th... | 01/12/1993 |
| 5125186 | Drill grinding machine A drill grinding machine employs independent servo motors for drill rotation, drill lift, and drill feed. The three motors are connected through respective suitable drive mechanisms to a tubular spindle that is rotatably mounted within a work head. The wo... | 06/30/1992 |
| 5086910 | Zone controlled conveyance system A zone controlled conveyance system includes a series of modular sections arranged end-to-end to define a path along which a workpiece is propelled. Each section is divided into one or more zones. Each zone includes a number of rollers that support the wo... | 02/11/1992 |
| 4399603 | Power grip tool exchange arm for machining center An improved tool exchange arm for use in the automatic tool changer of a machining center adapted for boring, drilling, milling, tapping and tool changing operations under numerical control. The tool exchange arm may be incorporated in machining centers o... | 08/23/1983 |
| 4384397 | Tool changing machining center with swing spindle An improved tool changing machining center adapted for boring, drilling, milling, tapping and tool changing operations under numerical control. The machining center, which may be built in both vertical and horizontal spindle configurations, has an automat... | 05/24/1983 |
| 4373840 | Pallet transfer system A workpiece handling system is disclosed. The system includes a generally centralized pallet handling stand, and a number of pallet-accepting stations. These stations can be associated with machine tools such as vertical turret lathes or horizontal boring... | 02/15/1983 |
| 4354305 | Contouring and threading attachment for multi-function machine tools A contouring and threading attachment for use with numerically controlled multi-function machine tools having automatic tool changing capability. The attachment has a spindle-actuated body adapted to detachably engage an adapter collar rigidly fixed to th... | 10/19/1982 |
| 4331893 | Boolean logic processor without accumulator output feedback A clocked digital Boolean processor which responds to operation code signals and to successive single bit input (operand) signals to drive a single bit accumulator to output the successive answers of chained Boolean operations. The hardware elements are c... | 05/25/1982 |
| 4303360 | Power drawfinger system for machine tool spindle A power drawfinger system for selectively locking and releasing a toolholder or arbor in the socket of a power driven machine tool spindle. The system includes a collet device actuated by a power drawbolt using hydraulic means for expanding said device an... | 12/01/1981 |
| 4250551 | Methods and apparatus for lead segment machining Improvements in numerical control systems associated with turning machines and by which a special mode of machining is carried out from those blocks of a part program having a special mode code associated therewith. A lead segment is automatically formed ... | 02/10/1981 |
| 4240232 | Coated abrasive superfinishing stone and method of making same An improved superfinishing stone for micro-finish machining of workpieces and a method of making same. The stone comprises a body of readily machinable metal with a cutting face in the form of an abrasive liner adhesively bonded to a contour face compleme... | 12/23/1980 |
| 4225918 | System for entering information into and taking it from a computer from a remote location A system for transmitting binary instruction or data words to or from a computer by control from a home base remote from the computer site, and characterized by the entry of signals into the computer or the extraction of signals from the computer performe... | 09/30/1980 |
| 4212076 | Digital computer structure providing arithmetic and boolean logic operations, the latter controlling the former A digital computer of relatively simple and efficient structural organization which is capable not only of conventional arithmetic operations according to a program but also of (i) performing chained Boolean logic processing on any selected bit of any of ... | 07/08/1980 |
| 4196506 | Tool changer machining center An improved machining center including an automatic tool changer adapted for boring, drilling, milling, tapping and tool changing operations under numerical control. The machine, which may be built in both horizontal spindle and vertical spindle configura... | 04/08/1980 |
| 4182979 | D-C. electric torquing system An electric torquing device comprises a d-c. motor for producing an output torque that varies in proportion to variations in the armature current, a power source for supplying d-c. current to the armature to produce an output torque, and regulating means ... | 01/08/1980 |
| 4172514 | High speed continuous assembly machine A high speed continuous assembly machine adapted to handle and assemble a variety of regular parts such as tubes, discs, rods and cylinders at rates varying from 120 to 1200 assemblies per minute. The machine utilizes a work transport conveyor of the endl... | 10/30/1979 |
| 4167808 | Harness for electromagnetic transducer A harness for an electromagnetic transducer such as an INDUCTOSYN-type slider includes four separate series of thin flat U-shaped connectors stacked on top of each other for connecting the ends of the U-shaped conductors on the slider to each other in the... | 09/18/1979 |
| 4141134 | Tool changer attachment for multi-function machine tools An automatic tool changer for horizontal spindle multi-function machining centers constructed as a self-contained unit adapted for installation as original equipment or as an accessory. The tool changer has a large capacity magazine and is supported on an... | 02/27/1979 |
| 4080009 | Servostatic bearing system with variable stiffness The invention provides a hydraulically sealed, variable stiffness servostatic bearing system for use in machine tools and between any other loaded surfaces. Bearing pads operate between two relatively movable surfaces. A pilot valve senses changes in the ... | 03/21/1978 |
