Patents for B24B 47 - Drives or gearings for grinding machines or devices; Equipment therefor (3,586)
05/1998
05/27/1998CN2282479Y Pneumatic compensated polishing grinding head
05/19/1998US5752874 Means and method for fabrication of grazing incidence optics
05/12/1998US5749769 Lapping process using micro-advancement for optimizing flatness of a magnetic head air bearing surface
05/06/1998EP0839609A1 Apparatus and method for grinding eyeglass lenses
05/06/1998CN2280586Y Mould engraving machine
05/06/1998CN2280585Y Low-noise friction type electric abrasive finishing machine
04/1998
04/29/1998EP0759834B1 Nc-grinding process for the circumferential edge and top facet of a spectacle lens
04/29/1998CN1180008A Glass free curve compound rotating polishing method and its tool
04/29/1998CN1180007A Curve form adaptive grinding method for free curve grinding and its tool
04/14/1998US5738564 Numerically controlled grinding machine for grinding workpieces, in particular tools
04/08/1998EP0833720A1 Method and apparatus for optical polishing
04/08/1998EP0713438B1 Improved x-axis accuracy in two axis machine tools
04/07/1998US5735036 Lapping process for minimizing shorts and element recession at magnetic head air bearing surface
03/1998
03/26/1998WO1998012019A1 Apparatus and method for abrasively removing material
03/24/1998US5730643 Machine tool
03/11/1998EP0785839B1 Lateral evening process and device
03/03/1998US5722876 Electric motor driven type on-line roll grinder, its control method and grinding method
02/1998
02/25/1998EP0824995A1 Forming a transparent window in a polishing pad for a chemical mechanical polishing apparatus
02/18/1998CN2274547Y Automatic adjusting mechanism of grinder head
02/17/1998US5718619 Abrasive machining assembly
02/17/1998US5718617 Grinding force measurement system for computer controlled grinding operations
02/17/1998US5718614 Control apparatus for grinder
02/10/1998US5716256 Lens grinding apparatus for grinding an eyeglass lens from a plurality of directions
02/05/1998WO1998004379A1 Machine for machining workpieces with cutting teeth, in particular saw blades
02/04/1998EP0822031A1 Method and apparatus for chucked work piece recognition
01/1998
01/28/1998EP0713441B1 Control of 2-axis machine tool
01/21/1998CN1170655A Automated wafer lapping system
01/14/1998EP0713437B1 Improved machine tool
01/14/1998EP0713434B1 Z-axis drive for 2-axis machine tool
01/13/1998US5707273 Multiple-pad orbital sander with split pad platen
01/13/1998US5707272 Polishing apparatus for a CRT glass panel and a method of polishing the glass panel
12/1997
12/24/1997WO1997048526A1 Grinding machine spindle flexibly attached to platform
12/24/1997WO1997048525A1 Workpiece inspection and handling
12/24/1997WO1997048522A1 Improvements in and relating to grinding machines
12/24/1997CN1168648A Method and device for regrinding grooved tools
12/23/1997US5700186 Motorized spindle with indexing fixture
12/16/1997US5697832 Variable speed bi-directional planetary grinding or polishing apparatus
12/04/1997DE19717058A1 Motor-driven pillar drilling machine
12/03/1997EP0810066A2 Automated wafer lapping system
11/1997
11/27/1997WO1997044158A2 Drive and support for machine tools
11/19/1997EP0807489A1 Device and method for indexing the phase of a crank pin
11/06/1997WO1997040962A1 Automatic machine for milling and chamfering of lenses, advantageously for spectacle lenses
11/05/1997EP0804315A2 Machine-tool
10/1997
10/29/1997EP0803329A2 Polishing machine
10/22/1997EP0802020A1 Method and apparatus for grinding the rim of a lens
10/21/1997US5679055 Automated wafer lapping system
10/21/1997US5679053 Method and apparatus for grinding a workpiece
10/15/1997EP0713436B1 Protective covers for 2-axis machine tool
10/01/1997EP0798077A1 Lens grinding apparatus having chamfering and other grinding wheels mounted on the same shaft
10/01/1997EP0798076A1 Lens grinding apparatus for grinding an eyeglass lens from a plurality of directions
09/1997
09/24/1997EP0796164A1 Method and device for regrinding grooved tools
09/24/1997EP0713440B1 Radial force compensation in 2-axis machine tool
09/18/1997DE19630057C1 Machine tool for machining saw blades
09/09/1997US5664993 Air bearing for a spin index fixture
09/09/1997US5664986 Apparatus for polishing a dielectric layer formed on a substrate
09/04/1997WO1997031755A1 Apparatus for grinding surfaces
09/04/1997CA2250214A1 Apparatus for grinding surfaces
09/03/1997CN1158289A Method of producing semiconductor wafers
08/1997
08/27/1997EP0791444A1 Wafer manufacturing process
08/19/1997US5658187 Apparatus for in-line surface finishing cylindrical stock such as stainless steel tubing, and method
07/1997
07/31/1997DE19602937A1 Paint sanding machine for wooden frame profiles
07/31/1997DE19602934A1 Paint layer abrasive machining mechanism
07/30/1997EP0785839A1 Lateral evening process and device
07/24/1997DE19601743A1 System for plain grinding and balancing of workpieces especially for turbine rotor for aircraft engines
07/22/1997US5649852 Sanding apparatus
07/08/1997US5645470 Method of honing a knife blade
07/01/1997US5643065 Indexing mechanism for rotatably mounted work holding spindle
07/01/1997US5643045 Retrofit kit for driving the regulating wheel of a centerless grinder
06/1997
06/12/1997WO1997020661A1 Motorized spindle with indexing fixture
06/11/1997CN1151341A Polishing apparatus for CRT glass panel and method of polishing glass panel
06/10/1997US5637032 Rotary disc planetary type surfacing machine
06/05/1997WO1997019784A1 Device and method for indexing the phase of a crank pin
05/1997
05/20/1997US5630746 Spectacle lens edge grinding machine
04/1997
04/30/1997DE19539978A1 Speed governor for disc reducing in diameter, such as grinding wheel
04/29/1997US5624302 Oscillating spindle sander
04/01/1997US5616070 Work drive orienting system for machine tool
03/1997
03/19/1997CN1145288A Electric motor driven type on-line roll geinder, its control method and grinding method
03/06/1997WO1997007930A1 Method of and apparatus for truing cutter heads
03/06/1997CA2226521A1 Method of and apparatus for truing cutter heads
03/05/1997EP0759834A1 Nc-grinding process for the circumferential edge and top facet of a spectacle lens
02/1997
02/13/1997WO1997004919A1 Work drive orienting system for machine tool
01/1997
01/22/1997CN2245520Y Single-board chamfered joint grinding machine tool
01/21/1997US5595525 Numerically controlled grinding machine
01/21/1997US5595524 Grinding apparatus and method which supports a workpiece on the surface being ground
01/14/1997US5593342 Device for smoothing and polishing stone
01/03/1997WO1997000155A1 Method and apparatus for optical polishing
12/1996
12/31/1996US5588899 Apparatus for grinding spectacle lenses
12/24/1996US5586468 Table driving device
12/18/1996EP0295264B2 Electrical discharge machining by redressing electrodes
12/17/1996US5584744 Machine tool
12/11/1996EP0746445A1 Glass beveling machine
12/10/1996US5582539 Feeding mechanism for a sander
11/1996
11/27/1996EP0744246A1 Positioning gauge for setting-up an ophthalimic lens grinding machine and corresponding setting-up method
11/20/1996EP0706439B1 Spectacle lens edge grinding machine
10/1996
10/31/1996DE19515261A1 Tool holder for honing stone
10/29/1996US5569059 System for driving a centerless grinder regulating wheel
10/23/1996EP0738561A1 Apparatus and method for in-situ endpoint detection and monitoring for chemical mechanical polishing operations
10/10/1996DE19530380C1 Grinding process for rotary circular blade
10/09/1996CN1132676A Apparatus for polishing dielectric layer formed on substrate
10/08/1996US5562523 Method and apparatus for grinding a workpiece
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