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| Number | Title | Issue Date |
| 7788961 | System and method for ballizing and measuring a workpiece bore hole A system and method are described for ballizing and measuring a workpiece bore hole. In one embodiment, a ballizing unit having a distal end removably coupled to a ballizing member moves the ballizing member from a first position within the bore hole to a second pos... | 09/07/2010 |
| 7343770 | Stamping system for manufacturing high tolerance parts A system and process for stamping parts having tolerances below 1000 nanometers. The inventive system and process is particularly suited for producing optoelectronic parts. The system includes a stamping press and one or a progression of stamping stations for suppor... | 03/18/2008 |
| 7243525 | Multi-angle hand rivet squeezer A hand rivet squeezer with adjustable handles includes a riveting head body, and C-shaped anvil yoke and stationary and lever swing-arm handles attached to the body. A mechanical linkage inside the body converts pivoting forces applied to the lever swing-arm into ax... | 07/17/2007 |
| 7205569 | Thin film transistor with microlens structures A thin film transistor with a microlens. A metal gate is formed on a substrate. A gate dielectric covers the metal gate. A semiconductor layer is formed on the gate dielectric. Source/drain metal layers respectively overlap ends of the top surface of the semiconduct... | 04/17/2007 |
| 7083164 | Cushion and cushion cylinder for ram or bolster of a press A high-pressure, inert gas cushion assembly for the ram or bolster of a metal stamping press includes a manifold having fluid-flow passages defined therein, along with a plurality of cylinder mounting locations each in communication with at least one of the fluid-fl... | 08/01/2006 |
| 7043955 | Forging die apparatus A forging die apparatus comprises a punch for applying a pressurizing force to a forging material arranged in a cavity, a cylindrical member installed to surround a part of outer circumference of the punch, for making displacement integrally with the punch, and a fi... | 05/16/2006 |
| 7024991 | Overload safety device in a press In an overload safety device in a press, having a driving device with a drive shaft, a slide carrying out an oscillating movement and a connecting rod which connects the drive shaft with the slide and has a large and a small eye, the connecting rod is provided with ... | 04/11/2006 |
| 7003995 | Hydrotapping power unit A hydrotapping power unit is disclosed that is operable to hold a hydrotapping tool in a home position adjacent a part while the latter is being hydroformed in a die cavity, to then advance the tool to pierce a hole in the hydroformed part while the part remains in ... | 02/28/2006 |
| 6662617 | Press for transforming work pieces A press for transforming work pieces including a drive apparatus for driving at least one press tappet and at least one tappet element. The drive apparatus is connected with at least one extractor element through a lever linkage. A tool with a tool lower ... | 12/16/2003 |
| 5638748 | Hydraulic overload proportional valving system for a mechanical press The invention pertains to a press comprising, a drive mechanism, a slide and at least two connecting rods connecting between the drive mechanism and the slide for reciprocally driving the slide. At least two fluid valves are connected to respective connec... | 06/17/1997 |
| 4966029 | Method of bending a workpiece to a predetermined bending angle The invention provides a method of bending a workpiece to a predetermined bending angle, in which, in a first step, the workpiece is bent to a somewhat greater bending angle and then released. Thereafter, the amount of resilient back motion occurring afte... | 10/30/1990 |
| 4453501 | Transducer for determining if steam generator tubes are locked in at support plate A nuclear steam generator including a vessel, means to introduce vaporizable fluid into the bottom portion of the vessel, an outlet near the top through which vapor is discharged, a horizontal tube sheet extending across the vessel, a plurality of U-shape... | 06/12/1984 |
| 4272980 | Load equalizer for press tooling A pair of press tools, such as punches, are mounted on a tool support for axial reciprocation between extended and retracted positions with respect to the support. The tool support may be defined by a press slide, bed or component part of a tooling packag... | 06/16/1981 |
| 4257254 | Adapter cushion An improved adapter cushion is used in a press with a die assembly having a plurality of projecting die pins. The adapter cushion includes a one-piece cylinder block in which a plurality of cylinder chambers are formed. Cylinder sleeves or liners are tele... | 03/24/1981 |
| 4206699 | Retracting bolster for a press A bolster for a press, such as a mechanical press, which is capable of being easily retracted downwardly so as to increase the die separation thereby enabling easy access to the dies for maintenance. The bolster assembly includes a base mounted to the bed... | 06/10/1980 |
| 4178792 | High-speed anvilless hammer A hammer comprises a bed in the guides of which is mounted a frame, the latter being supported on cushions. The frame mounts a hammer head provided with a dirve for imparting thereto an axial reciprocating motion. The hammer head drive includes a power cy... | 12/18/1979 |
| 3955396 | Press overload protection system A hydraulic pressure actuated fluid flow control circuit is connected to a press actuated overload cylinder and piston assembly. The fluid flow circuit including the cylinder and piston assembly are charged to a given pressure, and upon an overload on the... | 05/11/1976 |
| 3948077 | Forging press with independent hammer-position adjustment and overload protector The forging press has a horizontal drive shaft on which is carried an eccentric body linked to a vertical force-transmitting block whose lower surface lies at an angle to the horizontal and flushly engages the top of a horizontally reciprocal wedge whose ... | 04/06/1976 |
| 3943745 | Piercing and coining apparatus Apparatus for piercing and coining a metal workpiece is provided. The apparatus includes a punch and a back-up die which accomplish the piercing, and a coining die located around the punch and movable with respect thereto to accomplish the coining. The pu... | 03/16/1976 |
