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| Number | Title | Issue Date |
| 6843171 | Product feed mechanism for hydraulic press A hydraulic press utilizes a product feed mechanism including a product lifting linkage capable of raising and lowering a product-holding platen while maintaining same in a precise horizontal position during such movement. The hydraulic drive for the lifting and low... | 01/18/2005 |
| 5983696 | Transfer system A transfer system for moving work pieces held in workpiece grippers along a first, horizontal axis between a plurality of spaced apart workstations, the transfer system including a press having a ram moveable along a second, vertical axis and a bolster al... | 11/16/1999 |
| 4969349 | Synchronized dual axis actuator A dual axis actuator consisting of two fluid cylinders having the fluid inputs to the cylinders connected in parallel to a source of pressurized fluid, resulting in an automatic sequencing of cylinder rod drives. The cylinder rod encountering the least re... | 11/13/1990 |
| 4966274 | Control system for a walking beam assembly of a forging press The walking beam assembly of the forging presses operates in several movement phases including a lifting movement, advance movement, lowering movement, opening movement, return movement, and closing movement. Step motors control driving members which perf... | 10/30/1990 |
| 4924692 | Transfer press having gripper rails which can be transversely separated along their length In a transfer press, the gripper rails consist of gripper rail parts located at the press and exchangeable gripper rail parts. In operation, the gripper rail parts must be rigidly connected with one another. For this purpose, a coupling element utilizing ... | 05/15/1990 |
| 4887446 | System for transferring workpieces through a series of work stations A system for transferring workpieces through a series of linearly aligned, equally spaced work stations where a predetermined sequence of operations are performed thereon. The workpieces are transferred along an X axis by a plurality of workpiece gripping... | 12/19/1989 |
| 4873860 | Lifting beam assembly for a forming press The lifting beam assembly for transporting workpieces from work station to work station in a forming press includes a pair of transport beam members for grasping workpieces to be transported within the forming press. A first drive mechanism executes verti... | 10/17/1989 |
| 4557370 | Finger apparatus for an idle station in a transfer press A finger apparatus for an idle station of a transfer press including a pair of transfer bars each divided into an upstream side end bar, a central bar and a downstream side end bar. The central bar is adapted to be moved in and out of the press together w... | 12/10/1985 |
| 4557133 | Press unit having gripper rails to be exchanged at the same time as the tools A press unit having gripper rails to be exchanged at the same time as the tools, wherein in hollow spaces of the ends of the gripper rails, means are inserted for the locking of the form-fitting or toothed connection of gripper rails on the side of the pr... | 12/10/1985 |
| 4511029 | Apparatus for transferring articles An apparatus for transferring articles suitable for use in combination with a press in which a pair of parallel feed bars, each having clamping jaws or claws are moved three dimensionally to transfer blanks sequentially through a series of die stations. T... | 04/16/1985 |
| 4502591 | Transfer mechanism A transfer mechanism for transferring articles one by one from one position to another position, particularly for use with a forging press having a plurality of molds arranged in series to successively transfer blanks from a receiving position to the mold... | 03/05/1985 |
| 4462521 | Transfer mechanism A transfer mechanism for transferring articles one by one from one position to another position, particularly for use with a forging press having a plurality of molds arranged in series to successively transfer blanks from a receiving position to the mold... | 07/31/1984 |
| 3977535 | Apparatus for loading a workpiece stack into a platen press A stack of sheets is loaded between the platens of a press by an apparatus which grips the stack along its opposite edges flanking a transport direction and holds the stack by these edges as it displaces the stack in the transport direction between the pl... | 08/31/1976 |
