Patents
Sitemap › B24 - Grinding; Polishing › B24B - Machines, devices, or processes for grinding or polishing; Dressing or conditioning of abrading surfaces; Feeding of grinding, polishing, or lapping agents › B24B 3 - Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
Patents for B24B 3 - Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools (4,999)
11/1990
11/08/1990DE3914885A1 Gewindeschleifmaschine Thread Grinding Machine
11/07/1990CN2065111U Sharpening and thining device of twist drill
11/06/1990CA1275809C2 Knife sharpner
11/06/1990CA1275808C Knife sharpener
10/1990
10/25/1990DE3913246A1 Maschine zum zweiseitigen stirnschleifen von abstechfraesern Machine for two-sided face grinding of abstechfraesern
10/23/1990US4964241 Blade sharpener
10/09/1990US4961288 Apparatus for sharpening edge tools
10/09/1990US4961287 Wood jointer and planer blade sharpening holder
09/1990
09/20/1990CA2012555A1 Multi-purpose grinder
09/19/1990CN2062269U Universal tool mill with group drill edge milling function
08/1990
08/08/1990EP0381003A2 Knife sharpening apparatus
07/1990
07/26/1990WO1990008011A1 Device for machining workpieces, in particular tools
07/25/1990EP0378638A1 Apparatus and process for the grinding of a profile of a band saw.
07/10/1990US4939873 Ski grinding device
07/10/1990US4939869 Method and apparatus for sharpening knives
07/04/1990CN2058872U Mineral drill grinding machine
07/03/1990US4938104 Apparatus for facilitating the machining of workpieces
07/03/1990US4937982 Positioning apparatus for tool sharpening
06/1990
06/27/1990EP0374734A2 Improved drill bit sharpener
06/27/1990EP0374606A1 Method and apparatus for positioning a work piece on a machine tool at an angle by the use of a laser beam
06/26/1990US4936053 Lawn mower blade sharpener apparatus
06/19/1990US4934612 Automatic forage harvester shearbar adjusting
06/19/1990US4934108 Veneer lathe knife honing device
06/12/1990US4932162 Camless grinder
05/1990
05/22/1990US4926836 Method of and apparatus for dressing cutting edge of cut-off wheel
05/16/1990EP0368050A1 Device for clamping knife bars on a grinding machine
05/10/1990DE3930379A1 Flat item-sharpening mechanism - has magnets below inclined supports over which endless belts run
05/09/1990CN2056886U Apparatus for cutter-grinding rear cutting face of ball-head vertical milling cutter
05/09/1990CN1041902A Self-centering arrangment for grinding hardmetal pins of drill bits
05/03/1990WO1990004495A1 Machine tool for grinding the helical grooves of a cutting instrument
05/02/1990CN1007794B Apparatus for grinding twist drills
04/1990
04/25/1990EP0365497A2 A self-centering arrangement for grinding the hardmetal pins of drill bits
04/17/1990US4916867 Drill bit sharpener
04/17/1990US4916866 End mill sharpener
04/17/1990US4916817 Razor blade cutting edge structure
04/10/1990US4915709 Knife sharpener
04/03/1990US4912881 Multiple angle dressing device for tools and stock
03/1990
03/22/1990WO1990002629A1 A sharpening device for the blades of a cross-cutting roller
03/21/1990CN1007223B Cement abrasive tods and the method of production thereof
03/21/1990CN1007222B Compound abrasive grinding wheel for grinding titanium alloy
03/14/1990EP0358059A1 Jointing-device
02/1990
02/22/1990EP0267240A4 Automatic ski tuning device.
02/06/1990US4897965 Knife sharpening apparatus
01/1990
01/31/1990EP0352823A2 Knife sharpener
01/31/1990CN2051880U Sharpener
01/30/1990CA1264946A1 Grinding machine for wet grinding flat rolls with weak profiles
01/10/1990EP0350239A1 Drill and grinding method and apparatus
01/09/1990US4891885 Method of making a knife having a scalloped cutting edge
01/03/1990EP0349017A2 Knife sharpener
01/02/1990US4890419 Device for grinding cutting tools having straight and spiral grooves
12/1989
12/28/1989WO1989012529A1 Blade sharpener
12/21/1989DE3819918A1 Grinding device
12/20/1989CN1006138B Grinding machine of drill cutting edges
12/14/1989WO1989011937A1 Apparatus and process for the grinding of a profile of a band saw
12/06/1989CN2048813U Blade sharpener of electric shaver
12/06/1989CN2048810U Cutter sharpening device
11/1989
11/29/1989EP0343983A2 Apparatus and methods for grinding tool cutter teeth
11/22/1989CN2048004U Electric knifes grinding device
11/16/1989WO1989010778A1 Edge sharpeners, particularly for skis
11/16/1989DE3815128A1 Back guide device for a rotation hoop knife
11/14/1989US4879845 Machine tool
11/08/1989EP0341223A2 Sharpening unit for leather splitting machines
11/08/1989CN1036875A Automatic forage harvester shearbar adjusting system
10/1989
10/25/1989CN1036494A Automatic forage harvester knife sharpening system
10/10/1989CA1262208A1 Blade sharpening and guide mechanism
10/04/1989EP0335332A1 Forage harvester
10/04/1989EP0335256A1 Forage Harvester
10/04/1989CN1035973A Shape repair grinding method of gear shaving cutter blade
09/1989
09/26/1989US4869025 Grinding machine, in particular for grinding scissors parts
09/26/1989US4869024 Arrangement for treating the running surfaces by skis
09/26/1989CA1260716A1 Honing device
09/14/1989DE3805675A1 Apparatus for grinding the teeth of a hob for spur gears in precision mechanics for overhead cutting
09/13/1989EP0332316A1 Apparatus for sharpening edge tools
09/05/1989US4862643 Portable finishing machine apparatus
08/1989
08/29/1989US4860497 Drill grinder having drill holder including chucks for gripping shank and body of the drill
08/29/1989CA1258764A1 Combination can opener/knife sharpener with pivotal mounting
08/23/1989EP0329087A1 Method and device for dressing an inner peripheral blade in a slicing machine
08/22/1989US4858389 Apparatus for grinding twist drills
08/22/1989US4858388 Restoration or drill buttons
08/17/1989DE3802252A1 Apparatus for grinding the teeth of a hob for spur gears in precision mechanics for overhead cutting
08/08/1989US4854080 Apparatus for sharpening periodontal instruments
08/02/1989EP0326325A2 Apparatus for facilitating the machining of workpieces
07/1989
07/25/1989US4850253 Broach manufacturing method
07/25/1989US4850150 Hand held drill with integral drill bit sharpener
07/25/1989US4850149 Sharpening device
07/18/1989US4848036 Grinding machine for drill bits
07/12/1989CN2040834U Space coordinates micromanipulation cutter edge sharpening machine
07/11/1989US4845900 Method and apparatus for grinding straight-edged cutting tools to a fine finish
07/06/1989DE3841829A1 Grinding device for drum-type harvest choppers
07/04/1989US4843769 Stump grinder tooth sharpening apparatus
07/04/1989US4843767 Automatic forage harvester knife sharpening system
06/1989
06/28/1989EP0322079A1 Tool for cutting gear wheels, and a method for resharpening said tool after wear
06/27/1989CA1256292A1 Knife sharpener
06/21/1989EP0321391A2 Planing tool for a woodworking machine
06/20/1989CA1255913A1 Relief grinding of lawn mower cylindrical blades
06/20/1989CA1255912A1 Method and apparatus for grinding the slide surface of skates
06/13/1989US4837983 Drill bit sharpening apparatus
06/07/1989CN2038836U Woodworking machine with a planer sharpener
06/06/1989CA1255104A1 Method and apparatus for jointing rotatable cutter heads
05/1989
05/31/1989CN2038439U Blade sharpening machine for an hair-clipper
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