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| Number | Title | Issue Date |
| 7270592 | Milling machine The improved milling machine makes use of individually controlled x-axis, y-axis, and z-axis carriages. These carriages provide positive and precise control of the position of the cutting tools and the blank to be cut. The tools are located in spindles that are move... | 09/18/2007 |
| 7226338 | Milling machine The improved milling machine makes use of individually controlled x-axis, y-axis, and z-axis carriages. These carriages provide positive and precise control of the position of the cutting tools and the blank to be cut. A tool changer allows the tools to be changed t... | 06/05/2007 |
| 7147547 | Method and device for grinding a rotationally symmetric machine part A method and a device for grinding a machine part that has two shaft elements, a machine part axis and a large diameter central element having a side surface which is embodied in the form of a flat truncated cone. The machine part is clamped between centers and is m... | 12/12/2006 |
| 5369915 | Grinding apparatus for grinding end faces of armature An apparatus is presented to automatically handle operations related to grinding simultaneously the two end faces of a core of an armature. The apparatus consists of four main sections: a charging section to charge a core at a time to a transport section;... | 12/06/1994 |
| 5367833 | Unidirectional abrasive flow machining An abrasive flow machining and polishing apparatus is provided having a hydraulically actuated reciprocating piston (42) and a extrusion medium chamber (10) adapted to receive and extrude a visco-elastic dispersion of an abrasive unidirectionally across t... | 11/29/1994 |
| 4841679 | Method and apparatus for manufacturing cam elements Cam elements (1), which are to be secured to a shaft to make a built-up cam shaft assembly, have their peripheries ground to the required shape by being supported in alignment with one another and ground by at least one pass of a contoured grinding wheel ... | 06/27/1989 |
| 4825598 | System for cleaning the surfaces of objects of great surface area from a movable aerial bucket The invention relates to an apparatus for sandblasting surfaces of objects of large surface area with a granular agent. The apparatus has a bucket (2) which can be moved parallel to the surface of the object, in which a sandblast aimed against the surface... | 05/02/1989 |
| 4594814 | Machine for and method of chamfering of edges of plate-shaped workpieces, particularly glass disks Chamfering of one or two edges of a glass disk is performed by one or two peripheral grinding wheels which move relative to the glass disk and rotate about axes of rotation which are parallel to the edges to be chamfered.... | 06/17/1986 |
| 4528777 | Knife sharpener A knife sharpening device having a grinding element adapted to be moved into the knife edge in a spiral path through a 180° traverse and reverse, simultaneously moving longitudinally throughout the length of the knife's edge. A blade stropping element ma... | 07/16/1985 |
| 4393627 | Reversing screw/high-low speed level wind screw Sharpening mechanism for moving at a variable speed along the length of the sharp edge of a reciprocating knife used in cloth cutting machines is disclosed. The apparatus includes a driven grinding apparatus (26) such as is known in the art for contacting... | 07/19/1983 |
| 4180047 | Above and below water and land pile cutting apparatus and method Above and below water and land pile cutting machine is provided having a main frame which is quadrangular in transverse cross-section and is shaped to receive in the center thereof the pile to be cut. The upper portion of the main frame carries extensible... | 12/25/1979 |
| 3974594 | Elevator tee deburring device Apparatus is disclosed that is operative to grind burrs from the ends of rails that have been saw cut to length. A manually positionable crosshead carries three grinding wheels, two of which are oppositely spaced and spring biased into engagement with opp... | 08/17/1976 |
