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| Number | Title | Issue Date |
| 5722878 | Method and apparatus for microfinishing A method of microfinishing a surface of a workpiece in which a shoe is pressed against the surface of the workpiece while the workpiece is rotating. The shoe is vibrated at a high frequency and is made of diamond or similar very hard material. Apparatus f... | 03/03/1998 |
| 5622526 | Apparatus for trueing CBN abrasive belts and grinding wheels A trueing wheel for trueing an abrasive belt or wheel having cubic boron nitride abrasive particles. The trueing wheel has a radially outer peripheral surface which slopes at an acute angle with respect to its axis of rotation. Diamond particles, preferab... | 04/22/1997 |
| 5433562 | Cutter quick change system The tool spindle has a drive plate on which a cutter is mounted. Drive keys on the drive plate engage slots in the cutter so that the cutter rotates with the drive plate. A clamp bar is provided to clamp the cutter against the drive plate. The cutter is f... | 07/18/1995 |
| 5367866 | Crankpin grinder A crankshaft is rotated about its central longitudinal axis and abrasive belts are moved along paths substantially perpendicular to the crankshaft such that the abrasive surfaces of the belts grind the crankpin journals while the crankshaft rotates. The b... | 11/29/1994 |
| 5210978 | Nose piece retainer for abrasive belt backing shoe A retainer for the nose piece of the shoe which backs the abrasive belt in a belt-type grinding machine. The nose piece is T-shaped having a cross member provided with opposite side portions and a stem between the side portions. The head of the shoe has a... | 05/18/1993 |
| 5142827 | Crankpin grinder and method A method of grinding crankpin journals on a crankshaft in which the crankshaft is rotated about its central longitudinal axis. Abrasive belts are moved along paths substantially perpendicular to the crankshaft such that the abrasive surfaces of the belts ... | 09/01/1992 |
| 5129407 | Variable camshaft A camshaft is provided having longitudinally spaced cams for operating the valve lifters of an engine. Each cam has juxtaposed first and second cam lobes for operating at low speed conditions (city driving) and high speed conditions (highway). The profile... | 07/14/1992 |
| 4945683 | Abrasive belt grinding machine Apparatus for grinding to predetermined contour a plurality of eccentric cams on a cam shaft, comprising abrasive belts supported adjacent the cam shaft for linear movement such that the belts grind the peripheries of the cams. The belts are guided along ... | 08/07/1990 |
| 4934882 | Apparatus for monitoring the angular position of a workpiece Apparatus for monitoring or tracking the angular position of a rotating camshaft during grinding or milling of cams on the camshaft. The cams may be milled, but in the apparatus shown, they are ground by abrasive belts which are guided by actuators driven... | 06/19/1990 |
| 4750849 | Method and apparatus for milling A method and apparatus for cutting a pair of circular grooves in the side edges of the periphery of a circular disk such, for example, as the stator of an alternator. A milling cutter having axially spaced cutting elements along its periphery is positione... | 06/14/1988 |
| 4717296 | Method and apparatus for finishing workpieces A method of rough finishing a piston, including removing gates and sprues, while the piston is rotated at a relatively slow speed. A rotating milling cutter provided with a multiplicity of cutting elements is positioned relative to the rotating piston suc... | 01/05/1988 |
| 4624610 | Milling machine A method for milling a radial projection on an elongated workpiece such as a camshaft. A milling head is provided with a plurality of cutting elements mounted in a circular arrangement on a conical face portion thereof. The head is supported with its axis... | 11/25/1986 |
| 4551048 | Milling machine A milling machine for milling a radial projection on an elongated workpiece such as a camshaft. A milling head is provided with a plurality of cutting elements mounted in a circular arrangement on a conical face portion thereof. The head is supported with... | 11/05/1985 |
| 4522189 | Adjustable cam bar assembly An adjustable cam bar assembly for use in guiding a diamond dresser for the grinding wheels of a multi-wheel grinder. A plurality of cams are individually mounted on an elongated support in adjusted position. Wedges engageable with the cams are advanced o... | 06/11/1985 |