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| Number | Title | Issue Date |
| 7393266 | Knife sharpening apparatus The invention relates to a pocket-sized knife sharpening device comprising two sharpening bars which are arranged in a housing and which are rotationally mounted. The sharpening bars are guided with the other ends thereof into arc-shaped recesses in the front wall a... | 07/01/2008 |
| 7070491 | Machine tool with fluid actuated helical adjustment of abrasive elements The application describes a honing tool for use with a CNC machine. A fluid actuator provides the mechanism for causing radial adjustment of abrasive elements. The actuator consists of a piston and cylinder assembly mounted within the tool and powered by cooling flu... | 07/04/2006 |
| 7008311 | Lapping tool A lapping tool capable of increasing the accuracy of a lapping operation, extending the life of lapping tool itself, adjusting a lapping diameter, and coping with the lapping operation of various diameters, comprising a lapping tool body having a lapping part on the... | 03/07/2006 |
| 6855045 | Tube surface cleaning device A tube cleaning device having a pair of jaws pivotally mounted on a frame and having opposed abrading surfaces defining an abrasion cavity, a mandrel fixed to the frame and extending axially thru the cavity for slidably receiving a tube end to be cleaned, spring str... | 02/15/2005 |
| 6254467 | Device for deburring workpieces, in particular moulded parts and castings made of plastics, rubber or the like The invention concerns a device for deburring workpieces, in particular moulded parts and castings made of plastics, rubber or the like, said device comprising a rotatable shank (1) and linear tool elements (5, 6) which, in the axial direction, extend coa... | 07/03/2001 |
| 6021771 | Surfacing machine with "strip-sert" cutter assemblies A cutter assembly for installation on the rotary discs of a concrete finishing/stripper machine includes a base member for mounting on the rotary disc of a machine, a cutter member carried on the base member having a plurality of interchangeable cutting e... | 02/08/2000 |
| 5020284 | Self-biasing honing tool A honing tool operated by a common motor or a drill while the part being honed is held by a common vice. A spring is positioned within a tubular sleeve member that is aligned with a boss member formed on the trailing end of a conventional housing for a co... | 06/04/1991 |
| 4955165 | Pipe tapering device A pipe tapering device adapted to receive the outer peripheral marginal end of a tubing or pipe therewithin and to grind a circumferentially extending taper on a marginal end of a pipe. The apparatus is particularly suited for forming a taper on the outer... | 09/11/1990 |
| 4716689 | Methods and apparatus for knife and blade sharpening A knife or blade is sharpened by using an apparatus which includes a magnetic guide having a magnetic knife guide surface in a plane at an angle to and intersecting the abrasive surface to form a line of intersection therewith. The magnetic guide surface ... | 01/05/1988 |
| 4615152 | Cylinder hone A rotary cylinder hone includes an elongate drive shank connected to a carrier arm holder which supports a plurality of arm assemblies having abrasive units carried at the ends thereof. Each arm assembly has a pair of flanges formed at the end opposite th... | 10/07/1986 |
| 4103461 | Grinding tools for cylinders A grinding tool for the inside of cylinder has a motor driven stem carrying a hub on which is a notched hub member detachably securing ends of three flexible legs. A shoe having a fixed grindstone is pivotally attached to each of the legs and is releasabl... | 08/01/1978 |
