Did You Know...
...that the video game, Pong, was invented by a guy who graduated at the bottom of his engineering class? Nolan Bushnell spent more time running the games at a local amusement park than he did on his studies at the University of Utah. His dreams of working for Disney's amusement empire were dashed when the company wouldn't hire him. Taking a boring job, Nolan daydreamed about electronic versions of popular games. He invented Pong, the first video game, and went on to found Atari Co.
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| Number | Title | Issue Date |
| 7818985 | Bending apparatus A bending apparatus is provided with a ram start-up device so as to be movable in a lateral direction. A controller moves the ram start-up device to a point in front of positioning points of abutments corresponding to points of selected edges of a workpiece. The ben... | 10/26/2010 |
| 7310989 | Hydraulic circuit for linearly driving a movable roller-holder slider of a pipe bending machine A hydraulic circuit for linearly driving a movable roller-holder slider of a pipe bending machine, comprising a hydraulic cylinder (5) whose piston rod is connected to a slider holding a movable roller, the cylinder being fed with pressurized fluid from a res... | 12/25/2007 |
| 7293447 | Control device for die cushion mechanism A control device for a die cushion mechanism, for carrying out force control with high accuracy and at a high speed. The control device for controlling the force generated by the die cushion mechanism utilizes a press working cycle which is repeatedly carried out. A... | 11/13/2007 |
| 7281403 | Production device, in particular a folding press and a method for operating a production device The invention relates to a production unit (1), in particular a bending press, and a method of operating the latter in order to shape workpieces of sheet metal between two press beams (15, 16) equipped with bending tools (36, 37) and displaceabl... | 10/16/2007 |
| 7254973 | Roller tool and positional pressure method of use for the forming and joining of sheet material An apparatus and method for forming and joining a first sheet material (A) located in a nest (30) to a second sheet material (B) positioned on top of the first sheet material. The apparatus includes a positional pressure roller tool or positional pressure var... | 08/14/2007 |
| 7249478 | Method and system for processing plate material, and various devices concerning the system A method for processing sheet metal includes processing and forming a sample and a blank on a work while leaving a microjoint part in a blanking process. The method also includes detecting at least one of a plate thickness of the work in an optional position and a s... | 07/31/2007 |
| 7128195 | Workpiece transfer system for stamping press A transfer system for transferring workpieces between successive die stations in a stamping press employing elongate bars with workpiece grippers mounted thereon. Two elongate support beams are mounted on vertical primary supports on opposite sides of the press. Two... | 10/31/2006 |
| 7117584 | Heat exchanger tube expanding apparatus A tube expanding apparatus includes mandrels, each mandrel having a billet on a leading end; a reciprocating actuator for supporting rear ends of the mandrels, the reciprocating actuator being supported to reciprocate in an axial direction of hairpin tube straight p... | 10/10/2006 |
| 7040129 | Sheet working method, sheet working system, and various devices related to such system An actual plate thickness and actual material constants are measured during punching before bending. The measured information is reflected on the bending, so that the bending is performed efficiently and accurately. Punching is carried out for each blank developed b... | 05/09/2006 |
| 7004006 | Motor driven link press The present invention provides a motor driven link press which enables working with a heavy press load and also enables a working cycle time to be improved even when a motor with a relatively low output power is used and which can be properly controlled easily. A mo... | 02/28/2006 |
| 6959572 | Fixture for holding metals parts for bending or twist correction A fixture for supporting a workpiece such as a cast turbine blade allows bending and/or twist correction of the workpiece with the movable ram of a press. The fixture includes a base and a pair of workpiece supports mounted at spaced locations on the base. A bearing... | 11/01/2005 |
| 6919555 | Guard device for machines such as bending presses, cutting machines, stamping machines or the like A guard device for machines such as bending presses, cutting machines, stamping machines or the like, has a first machine part which performs operative movements toward a second machine part. A laser photoelectric detector arrangement is attached to the first machin... | 07/19/2005 |
| 6826939 | Method and device for detaching plate thickness in press A ram descends due to its own weight and pressure of a rod-side cylinder chamber of a hydraulic cylinder which vertically moves the ram is detected by an oil pressure detector. A determination section detects a position at which a punch attached to the ram contacts ... | 12/07/2004 |
| 6796155 | Sheet thickness detecting method and device therefor in bending machine, reference inter-blade distance detecting method and device therefor, and bending method and bending device A plate thickness detector for a bending machine causes a punch to make a relative stroke and bend a workpiece mounted on an upper surface of a die cooperatively by the punch and the die. A displacement gauge is provided in the die, is always urged upward from a V-g... | 09/28/2004 |
| 6694795 | Crimping system A crimping system comprises a frame having a plurality of plates with a clamp adjacent to the lower end. Applicator mechanisms are adapted to feed crimpable components coupled together by and releasably coupled to a carrier. A crimping mechanism has an an... | 02/24/2004 |
| 6523384 | Carry through monitor An apparatus and method for monitoring the carry through state of a mechanical press is disclosed. Actual slide displacement curves under load conditions are continually generated for the press being monitored. Values of rebound height, rebound count, and... | 02/25/2003 |
| 6520077 | Screw press A screw press which can ensure the positional precision of the ram when the rotation amount of the press motor does not directly translate into the position of the ram because there is other machinery, such as a decelerator and the like, present between t... | 02/18/2003 |
| 6460396 | Power press This invention relates to a hydraulic force modulator used in a power press to provide a predetermined force with a defined force applied by a ram of the press at defined incremental positions of the ram relative to a stationary part of the press. A movea... | 10/08/2002 |
| 6434988 | Tool controlling apparatus A tool controlling apparatus includes a position controlling unit and a torque controlling unit for carrying out the conversion between the position control and the torque control of the tool for pushing the work, and the conversion of the torque in the t... | 08/20/2002 |
| 6418768 | Method and apparatus for producing a crimp connection A crimping including a stand at which a motor and a transmission are arranged. Moreover, first guides, at which a crimping bar is guided, are arranged at the stand. A shaft driven by the transmission has an eccentric pin at one end, and a resolver for det... | 07/16/2002 |
| 6386008 | Sheet fabrication center and methods therefor of optimally fabricating worksheets A sheet fabrication machine is equipped with different servo motors for actuating its upper tool and its lower die. A direction converting mechanism is provided to each of the tool assembly and the die assembly so as to convert the non-vertical forces out... | 05/14/2002 |
| 6250128 | Forging die and upset forging method An upset forging die device and method are provided for upset-forging a raw material that is being filled in a cavity of a lower molding die at a portion between an upper punch of an upper molding die provided on a slide and a lower punch of the lower mol... | 06/26/2001 |
| 6237381 | Power press ram force modulation and apparatus for use therewith This invention relates to a hydraulic force modulator used in a power press to provide a predetermined force with a defined force applied by a ram of the press at defined incremental positions of the ram relative to a stationary part of the press. A movea... | 05/29/2001 |
| 6212924 | Process and apparatus for determination of the quality of a crimped connection A crimping press having a motor, a gear and first guides, at which a crimping ram is guided, arranged at a frame. A shaft driven by the gear has an eccentric spigot at one end and a resolver for the detection of the rotary angle coupled on at the other en... | 04/10/2001 |
| 6205828 | Forging die, and method and apparatus for controlling the same A hydraulic pressure control apparatus comprises a high pressure accumulator for sucking pressure oil supplied to a relief chamber of a relief valve to make changeover for the relief valve from a valve-closed state to a valve-open state when a forming loa... | 03/27/2001 |
| 6161407 | Process and apparatus for determination of the quality of a crimped connection A crimping press having a motor, a gear and first guides, at which a crimping ram is guided, arranged at a frame. A shaft driven by the gear has an eccentric spigot at one end and a resolver for the detection of the rotary angle coupled on at the other en... | 12/19/2000 |
| 6125676 | Control system for controlling a rod mill A control system for controlling a rod mill wherein a general-purpose motor can be used together with servomotors in controlling the operational sequence of processes, wherein the time required for going through all the processes can be reduced, and where... | 10/03/2000 |
| 6012312 | Double blank detector apparatus and method of operation A double blank detector apparatus and method of operation determines the condition of when one blank, no blanks or more than two blanks are about to be fed into a press. An indicator bar advances relative to the number of blank sheets of material being de... | 01/11/2000 |
| 5941110 | Adaptive method and apparatus for forming tailor welded blanks Method and apparatus for TWB forming with adaptive control of movable punch and/or die segments in a manner to maintain a holding force at the weld line by the punch and die segments during at least initial forming of the blank in a manner to control and ... | 08/24/1999 |
| 5921125 | Control method of terminal crimping device A method of controlling a terminal press attaching device by providing a elevating crimper for crimping terminals onto exposed conductors of the cables, setting an anvil opposite to the crimper, and elevating the drive means including a servo motor. More ... | 07/13/1999 |
| 5784913 | Pressure die assist boost system for tube bending machine A machine for cold bending a thick walled tube is provided which includes a rotatable bend die around which the tube is bent and a pressure die which engages an outer side wall of the tube tangential to the bend. The pressure die has a pinch-type tube gro... | 07/28/1998 |
| 5771726 | Apparatus and method for twisting hollow rods Apparatus and methods for uniformly twisting hollow, open-seam rods with preferably rectangular cross-sections for use as decorative curtain rods are disclosed. The twist extends throughout substantially the entire length of the rod. This feature enables ... | 06/30/1998 |
| 5735155 | Method for manufacturing patterned tread plates A method for manufacturing patterned tread plates including the steps of providing a press having a path for advancing a sheet therethrough, the press being equipped with a progressive die including a plurality of gaggable dies and punches arranged in a p... | 04/07/1998 |
| 5622069 | Stamping die with attached plc A metal stamping die for a punch press is provided that has a programmable logic microcontroller fixed directly to the die body of the stamping die. The programmable logic microcontroller is encased in epoxy resin to protect it from contaminants and to pr... | 04/22/1997 |
| 5557959 | Modular die transfer system A die transfer system for transferring workpieces through successive die stations in a stamping press includes an enlongated finger bar having spaced fingers for engaging workpices at successive die stations, a first drive mechanism for reociprocating the... | 09/24/1996 |
| 5394720 | Apparatus for producing form wound stator coils Apparatus for forming a form wound stator coil from a bobbin has means for clamping the straight portions of the bobbin to define the straight portions of the each leg of the coil. It also has means for bending the bobbin to predetermined radii to form ar... | 03/07/1995 |
| 5379624 | Slaved tube length control for hairpin bender A method and apparatus for controlling the orienting of the ends of a finite length segment of tube following a bend thereof through a predefined angle. A supplying and delivering device supplies at least one straight finite length segment of tube to a tu... | 01/10/1995 |
| 5299478 | Method for controlling punch press noise A method for controlling punch press noise in which the noise level produced is monitored by a detector and the press ram velocity is modified in real time to keep the noise level within preset limits. A time weighted average noise level is also controlle... | 04/05/1994 |
| 5115661 | Forming parts from ductile materials Method of stretch forming a workpiece comprising placing the workpiece on a former, gripping the workpiece by at least one gripper, pulling the workpiece to a desired configuration over the former by the at least one gripper, disposing a force-applying de... | 05/26/1992 |
| 4977769 | Rolling machine with exchangeable rolling tools A rolling mill wherein the frame or frames for pairs of superimposed rolling tools can be lifted off the base by a crane. Each rolling tool carries a first clutch element receiving torque from a separable discrete second clutch element on a support which ... | 12/18/1990 |
