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| Number | Title | Issue Date |
| 7329173 | Tool grinding machine A grinding machine, which includes a grinding wheel rotatable by a motor, a first slide movable in X-axis direction, a second slide supported on the first slide and movable in Y-direction, a bracket supported on the second slide and turnable about Y-axis, a tool hol... | 02/12/2008 |
| 6526638 | Device for producing relative motion with two translational degrees of freedom A device for producing relative motion with two translational degrees of freedom between a spindle means (95, 195, 295 395) with a spindle which bears the first part of a first pair of parts formed from a workpiece and a tool, and a retaining element for ... | 03/04/2003 |
| 6367135 | Device for producing relative motion with two translational degrees of freedom A device for producing relative motion with two translational degrees of freedom between a spindle means (95, 195, 295, 395) with a spindle which bears the first part of a first pair of parts formed from a workpiece and a tool, and a retaining element for... | 04/09/2002 |
| 5921847 | Grinding fixture and method of remanufacturing tool inserts A swing grinding fixture and process for using the same is disclosed that enables a conventional surface grinder to remanufacture a machine tool cutting insert by grinding a predetermined shape into the insert. A quick clamping insert holder coupled to a ... | 07/13/1999 |
| 5895311 | Abrasive device that maintains normal line of contact with curved abrasive surface and method of using same An abrasive apparatus adopted to abrade a curved surface of workpiece includes: an abrading head including an abrading tip having a substantially spherical outer surface and a rotating shaft supporting the abrading tip, the abrading head being positioned ... | 04/20/1999 |
| 5679054 | Apparatus for grinding the screen panel of a cathode ray tube Disclosed is an apparatus for grinding the screen panel of a CRT. A jig pallet for holding the screen panel of a CRT is fixedly supported by a jig pallet support plate by means of a pivoting mechanism. The screen panel is fixedly mounted in the jig pallet... | 10/21/1997 |
| 5125186 | Drill grinding machine A drill grinding machine employs independent servo motors for drill rotation, drill lift, and drill feed. The three motors are connected through respective suitable drive mechanisms to a tubular spindle that is rotatably mounted within a work head. The wo... | 06/30/1992 |
| 4837983 | Drill bit sharpening apparatus A walking beam conveyor (54) delivers drill bits (B), one at a time, into a feed position. A pushrod (52) moves a drill bit (B) from the feed position into the nosepiece (36) of a robot arm (28). The drill bit (B) enters the nosepiece (36) shank end first... | 06/13/1989 |
| 4782633 | Drill bit sharpening method A walking beam conveyor (54) delivers drill bits (B), one at a time, into a feed position. A pushrod (52) moves a drill bit (B) from the feed position into the nosepiece (36) of a robot arm (28). The drill bit (B) enters the nosepiece (36) shank end first... | 11/08/1988 |
| 4658549 | Drill bit sharpening device A sharpening device, particularly useful for sharpening tools having two identical cutting edges such as drill bits, comprised of a jig for holding a drill bit used with an adjustable support having a rotatable grindstone and a pivot arm retaining means. ... | 04/21/1987 |
| 4655005 | Apparatus and process for dry cutting of plastic optical lenses A process and apparatus for dry lens generation of a plastic optical lens includes a chamber structure in which the lens grinding tool and the lens blank holder are positioned. The chamber is provided with a large unobstructed inlet and an outlet connecte... | 04/07/1987 |
| 4635403 | Edge rounding machine An edge rounding machine for performing edge rounding of an outer edge portion of a machining face of a workpiece such as a floppy disk head, etc., including a cylindrical rotary member having, at its outer periphery, cutting edges, a holder for supportin... | 01/13/1987 |
| 4589231 | Apparatus and process for dry cutting of plastic optical lenses A process and apparatus for dry lens generation of a plastic optical lens includes a chamber structure in which the lens grinding tool and the lens blank holder are positioned. The chamber is provided with a large unobstructed inlet and an outlet connecte... | 05/20/1986 |
| 4584795 | Numerical control grinding machine for grinding a taper portion of a workpiece In a numerical control grinding machine, a workpiece with a taper portion to be ground is rotatably supported on a swivel table which is mounted on a traverse table to be pivotable about a pivot. For grinding the taper portion, the traverse table is moved... | 04/29/1986 |
| 4489523 | Apparatus for regrinding step drills A drill bit pointer machine includes a laser micrometer for measuring the pilot diameter and transmitting the data to a microprocessor through a digital readout. The microprocessor is programmed to manipulate the data and define the operation of a stepper... | 12/25/1984 |
| 4365444 | Drill point grinding machine A drill point grinding machine having a selectively positionable workhead rotatably supporting a drill to be ground and a rotary grinding wheel that is positionable toward and away from the workhead. The machine has a control for selectively moving the wo... | 12/28/1982 |
| 4292699 | Grinding machine for delimited groove machining on cutting tools A grinding machine, particularly designed for machining a chipbreaker groove into the cutting edge of a cutting tool, the grinding machine has a support base and an abrasion wheel mounted to the support base, a workpiece table with anchoring fasteners for... | 10/06/1981 |
| 4109419 | Ice skate sharpening devices A lightweight transversely pivoting and longitudinally sliding skate carriage exhibiting exceptionally low friction, introduces a high degree of sensitivity into the process of skate sharpening, facilitating very light grinding cuts and low uniform traver... | 08/29/1978 |
| 3972148 | Machine tool for finish-grinding the inner surfaces of annular workpieces An internal finish-grinding machine of the type comprising a frame carrying a rotatable grinding wheel and also supporting an axially movable table which itself carries a rotatable support for a workpiece has the table pivotally mounted on a single horizo... | 08/03/1976 |
| 3930342 | Sharpener for twist drills A sharpener having a clam-shell housing in which a motor is mounted for driving a grinding wheel disposed adjacent one end of the housing, a chuck which holds either twist drills or a diamond dresser, the chuck being indexable 180.degree. about its axis, ... | 01/06/1976 |
