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"I watched his countenance closely, to see if he was not deranged ... and I was assured by other senators after he left the room that they had no confidence in it."
U.S. Senator Smith of Indiana ; After seeing Samuel Morse demonstrate the telegraph.
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| Number | Title | Issue Date |
| 7143884 | Bi-directional clutch unit A clutch unit has an oil pump which is powered by the input shaft and an oil pump which is powered by the output shaft. The oil pump powered by the input shaft pumps oil in both a clockwise and counterclockwise rotation of the input shaft. The oil flow is controlled... | 12/05/2006 |
| 6669891 | Method and apparatus for producing brake lining material An apparatus and method for producing a sheet of brake lining material utilizes a mold which has a mold base and a mold frame. The mold frame is slidingly received on the mold base. The sliding relationship between the mold frame and the mold base results... | 12/30/2003 |
| 6619457 | Bi-directional clutch unit A clutch unit has an oil pump which is powered by the input shaft and an oil pump which is powered by the output shaft. The oil pump powered by the input shaft pumps oil in both a clockwise and counterclockwise rotation of the input shaft. The oil flow is... | 09/16/2003 |
| 6422364 | Press drive with oil shear clutch/brake units A drive unit for a press uses an oil shear brake and an oil shear clutch which are located axially along the output member of the drive unit. A multiple piece piston moves between a brake applied/clutch disengaged position to a brake released/clutch engag... | 07/23/2002 |
| 6419060 | Clutch/brake drive A press drive has an oil shear clutch and an oil shear brake located within a chamber defined by a housing. The chamber is filled with lubricating oil. A fluid passage is formed from the chamber through an output member and then to the friction discs of t... | 07/16/2002 |
| 6412613 | Electric brake An electric motor brake has a printed circuit board which circumferentially locates and. Returns a plurality of electromagnetic coil assemblies within a coil housing. The circuit board simplifies both the assembly and wiring associated with the electric m... | 07/02/2002 |
| 6397993 | Press drive with oil shear clutch/brake units A drive unit for a press uses an oil shear brake and an oil shear clutch which are located axially along the output member of the drive unit. A single piston moves between a brake applied/clutch disengaged position to a brake released/clutch engaged posit... | 06/04/2002 |
| 6245180 | Methods for bending brake lining material and for forming a lined brake shoe Methods for forming a lined brake shoe having a curved brake lining attached to a table of the lined brake shoe. The curved brake lining is manufactured by molding a flat sheet of brake lining material in a partially polymerized state. This flat sheet is ... | 06/12/2001 |
| 6029786 | Lubrication system for an oil shear clutch/brake drive A clutch/brake drive has a brake unit and a clutch unit. The brake unit and clutch unit each include a plurality of interleaved friction plates. The lubrication for the clutch/brake unit includes a plurality of axial and redial passages formed into the fr... | 02/29/2000 |
| 5988326 | Press drive with oil shear clutch/brake drives A drive unit for driving a press uses a hydraulically actuated oil shear brake unit located on one side of a flywheel and a hydraulically actuated oil shear clutch unit located on the opposite side of the flywheel. The actuating assemblies for the oil she... | 11/23/1999 |
| 5947244 | Press drive with oil shear clutch/brake units A drive unit for driving a press uses a hydraulically actuated oil shear brake unit located on one side of a flywheel and a hydraulically actuated oil shear clutch unit located on the opposite side of the flywheel. The actuating assemblies for the oil she... | 09/07/1999 |
| 5921361 | Press drive with oil shear clutch/brake drives A drive unit for a press uses an oil shear brake unit and an oil shear clutch unit. The actuation of the brake unit and the clutch unit occurs simultaneously due to a common activation member. The oil cooling system for the drive unit feeds oil to the out... | 07/13/1999 |
| 5833210 | Brake and clutch control system A control system for a press having a clutch and a brake includes a clutch control valve and a brake control valve. The clutch control valve operates the clutch by supplying pressurized air to the clutch. The brake control valve operates the brake by supp... | 11/10/1998 |
| 5806641 | Independent clutch and brake for a press A conversion kit for an existing machine tool drive converts the machine tool drive from an air activated system to a hydraulically actuated system. The existing machine tool drive includes an air activated clutch and brake which are mechanically interloc... | 09/15/1998 |
| 5769187 | Press drive with oil shear clutch/brake drives A drive unit for driving a press uses a hydraulically actuated oil shear brake unit located on one side of a flywheel and a hydraulically actuated oil shear clutch unit located on the opposite side of the flywheel. The actuating assemblies for the oil she... | 06/23/1998 |
| 5716299 | Two speed drive incorporating reverse A drive system has a pair of planetary gear sets located between an input shaft and an output shaft with an intermediate shaft located between the pair of planetary gear sets. A series of oil shear brakes and clutches allow the drive system to operate in ... | 02/10/1998 |
| 5697862 | Two-speed press drive A two-speed press drive is manufactured as a complete assembly eliminating the requirement that the drive be assembled at the location of the press. The two-speed drive includes a stationary quill, an output shaft and a planetary gear set. The planetary g... | 12/16/1997 |
| 5680915 | Brake and clutch control system A press includes a drive system which includes a brake and a clutch operated by fluid pressure. The brake and clutch control the movement of a crankshaft in relation to a flywheel. A unique control system supplies the pressurized fluid for operation of th... | 10/28/1997 |
| 5657843 | Press drive with oil shear clutch/brake drives A drive unit for driving a press is disclosed. The drive unit uses a hydraulically actuated oil shear brake unit located on one side of a flywheel and a hydraulically actuated oil shear clutch unit located on the opposite side if the flywheel. The brake i... | 08/19/1997 |
| 5651436 | Brake and clutch control system A control system for a press having a clutch and a brake includes a clutch control valve and a brake control valve. The clutch control valve operates the clutch by supplying pressurized air to the clutch. The brake control valve operates the brake by supp... | 07/29/1997 |
| 5582062 | Die changing system including moving bolsters A die changing system for a press includes a single push-pull drive system and a double push-pull drive system which move roller supported bolsters along a T-shape track system. Each bolster includes a stationary set of rollers to roll along one section o... | 12/10/1996 |
| 5547431 | Electrically energized oil shear drive system A two speed drive has an input shaft and an output shaft. Between the input shaft and the output shaft is a first brake/clutch pack assembly, a planetary gear train and a second brake/clutch assembly. The two speed drive offers a low speed operation, a hi... | 08/20/1996 |
| 5540120 | Index table with a two speed drive system An index table utilizes oil shear brake and clutch technology in combination with a unique final positioning system in order to provide an accurate and reliable index table, the index table incorporates a two speed oil shear drive system for high speed in... | 07/30/1996 |
| 5538292 | Rotary union A rotary union includes a housing which encases a rotor having a first sealing surface and a stator having a second sealing surface. The sealing surfaces are biased against each other due to a load exerted by a biasing member. An inlet chamber is in commu... | 07/23/1996 |
| 5487458 | Electrically energized oil shear drive system A drive system has an input shaft and an output shaft. An oil shear clutch assembly is operable to lock the input shaft to the output shaft and an oil shear brake assembly is operable to lock the output shaft to the housing of the drive system. The clutch... | 01/30/1996 |
| 5360091 | Electrically actuated clutch brake apparatus There is provided a clutch/brake unit having aligned input and output shafts, clutch disks partially immersed in oil carried by the input shaft, brake disks partially immersed in oil fixed to the housing, and two series of friction disks also partially im... | 11/01/1994 |
| 5291977 | Electrically actuated clutch brake apparatus There is provided a clutch/brake unit having aligned input and output shafts, clutch disks partially immersed in oil carried by the input shaft, brake disks partially immersed in oil fixed to the housing, and two series of friction disks also partially im... | 03/08/1994 |
| 5285879 | Electrical actuated multi-speed drive apparatus There is provided a two-speed drive unit for a motor drive, the motor drive having a housing and a main rotatable member. The two-speed drive unit comprises a two-speed drive housing secured to the motor drive housing and a secondary motor secured to the ... | 02/15/1994 |
