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Patent Searching and Data


Matches 851 - 900 out of 9,077

Document Document Title
WO/1994/019152A1
An arrangement to devibrate a hand-held, compressed air-driven rotary grinding machine with vertical spindle. A grinding machine equipped with an unbalanced and unequally worn grinding wheel vibrates severely and will injure the operator...  
WO/1994/015750A1
A honing tool is fitted with hone assemblies (2, 3, 4, 5, 6) secured to a sliding component. An abrasive stick (6) is mounted on an articulated joint (4). The axis (0') of rotation of the articulated joint (4) is situated on/in the work ...  
WO/1994/008752A1
The invention relates to an arrangement for a mobile surfacing machine, preferably for the surfacing of stone floors. A frame (1) supports a drive motor (2) with a motor shaft (2a). A planet disc (3) is rotatably mounted in the frame (1)...  
WO/1994/007656A1
A drum for a rotary scanner is manufactured to high concentricity yet relatively inexpensively by mounting an oversized (in thickness) drum blank of possibly varying internal and external diameter on a cylindrical mandrel and thereafter ...  
WO/1994/007110A1
In a process of selectively removing material from an exposed layer carried by a substrate, a technique for determining endpoint by monitoring the intensity of a radiation beam that is passed through the substrate and any intervening lay...  
WO/1994/001243A1
A facing head comprises a spindle (2) which can rotate about a main axis (V) and a plurality of abrasive tools (3) which can rotate about secondary shafts having axes (I). Each tool (3) is formed by a support (5) which has a central port...  
WO/1993/025346A1
This invention relates to a vibration dampening grinding cup (1) for handheld grinding machines for the grinding of hard metal buttons on button bits, comprising a grinding head (2) and a shaft (3) made with a common axial channel (4) fo...  
WO/1993/015877A1
In a device for grinding workpieces, in particular workpieces made of ceramic materials, by means of a grinding wheel (24) or the like, the workpiece (23) is oscillated transversely to the machining direction during grinding. At least on...  
WO/1993/015878A1
A device for abrading a large-scale flat substrate such as a silicon wafer, a quartz substrate, a glass substrate, and a metallic substrate. A sample (B) is abraded and worked by means of an abrading surface plate (1) while it is fixed b...  
WO/1993/007947A1
A method of and apparatus for de-aerating high water based hydraulic fluid flowing in an hydraulic circuit to service a unit such as a high speed hydrostatic in a machine tool such as a grinding tool, wherein the fluid flows without inte...  
WO/1992/010332A1
A grinding apparatus comprises an article holder (10), a grinding device (12), and means to transfer an article (14) from the holder (10), clamp same in a determined fashion and present an end of the article (14) to the grinding device (...  
WO/1992/009401A1
A workpart chuck centering mechanism moves towards the axis of rotation of the chuck as the chuck rotates in an eccentric non-centered position. The centering mechanism includes two independent shoes (14, 16). Each shoe is driven by a se...  
WO/1992/000833A1
A ski grinding device and method comprising a holder having an adjustably sizable frame and a plurality of biasing legs disposed to engage the ski and maintain it in a flattened position. By holding the ski flat, the running surface can ...  
WO/1991/017864A1
On woodworking machines of the traversing type, for example those used for sanding operations, the items (23) are secured on a vacuum conveyor (3). When the items are not perfectly plane, or when the contact surface against the conveyor ...  
WO/1991/017863A1
In order to be able to sand the surface of an item (3) uniformly smooth, a sanding machine is used with sanding tools in the form of sanding rollers (29) which are rotated as well as turned in the same plane, and which at the same time h...  
WO/1991/016174A1
There is disclosed apparatus for brilliant cutting of glass comprising support means allowing a rotary cutting wheel and a glass workpiece freedom of relative movement such that the plane in which the wheel's cutting edge rotates can be ...  
WO/1991/011292A1
An arrangement for controllably removing material from an effective surface (31) of a workpiece (32) includes a mounting member (11) which is mounted on a support (10) for movement relative thereto at least in and opposite to a predeterm...  
WO/1990/014196A1
The invention relates to a process for polishing workpiece with a polishing plate (10) rotating about a gyro vector axis (18) and having a plurality of polishing threads (24) distributed around its periphery. Centrifugal force causes the...  
WO/1990/013396A1
A tool holding jig for a grinding machine has a tool holder (29) mounted on a parallelogram linkage having lower swivel rods (19) inclined slightly so that, as the tool holder (29) is rocked to and for across the face (31) of a grinding ...  
WO/1990/007401A1
The invention relates to a guide (1) used in a grinding device, particularly for an abrasive belt grinder, said grinding device being provided with a grinding tool (3) having its travelling direction crosswise to advancing movement (17),...  
WO/1990/002024A1
In a centreless circular grinding machine with a driven grinding wheel (3), a control wheel carriage (4) which carries a drivable control wheel (6) travels along a machine bed (1). The adjustment movement of the control wheel carriage (4...  
WO/1989/012528A1
An acoustic emission sensor (25, 28, 29) comprising a piezoelectric material that is integral with a tooling or machine element (20) in which acoustic emissions are to be sensed.  
WO/1989/003279A1
An orbital table assembly having a top plate (10) which can be made to orbit in a predetermined orbital path without rotating, and having a fixed base plate (20) under said top plate and a linkage plate (30) between the two other plates,...  
WO/1989/000480A1
A brush head (4) for trimming or brushing machines comprises a mounting plate (41) connected to a drive shaft (2) of the machine with which it is rotationally entrained. A plurality of finger-like brushes (5) are carried on the mounting ...  
WO/1988/010175A1
Apparatus (10) for polishing an end (14, 14a) of an optical fiber (12, 12a) comprises, a base (31, 131) having a front surface (36, 136) for movement over a polishing medium, a body (32) for holding an assembly comprised of an optical fi...  
WO/1988/006952A1
A grinding assembly (260) for grinding an object such as a printed circuit board coupon (266) at a predetermined angle and to a predetermined grinding depth, including a control board (264) carrying a grinding guide (262) having at least...  
WO/1988/006950A1
A device for abrasive machining comprises an annular support (1) and a chuck (5) kinematically connected to a drive and mounted on a thrust bearing (2) rotatably in a radial bearing (8). The chuck (5) is provided with a coaxial bushing (...  
WO/1988/004977A1
A guide (180) for the grinding of a surface of an object (182) having a region (218) to be exposed, including at least two conductive leads (214, 216) and a conductive control track (206). Each conductive lead is associated with a differ...  
WO/1988/003459A1
According to the ultra-precise machining method for machining a revolution surface (240) on a workpiece (204) held in position by means of the rotor of a workpiece-holder spindle (1), which rotor is mounted through active magnetic bearin...  
WO/1988/000512A1
For grinding directly between tips a moulding blank (18) that must be ground to size at one or several of its cylindrical or conical areas (3, 4) as well as at one of its ends (10) without having to shift it, a U-shaped back rest (23) is...  
WO/1985/002140A1
The apparatus provides rigid support (30) for the grinding wheel (25) by having the wheel shaft (26) off centre in the support housing (30). The one-piece housing can now have mass and bulk disposed in the plane of the contact force, for...  
WO/1984/003246A1
An apparatus for holding a blade (58) of an implement while sharpening an edge thereon with a rotating sharpening wheel (12). The blade (58) is carried by a blade holder (44) which is, in turn, supported on a vertically extending bracket...  
WO/1983/001219A1
This rotary table system can suppress the longitudinal fluctuation of a bearing to within one micron, which cannot be suppressed with a conventional bearing to less than 10 to 15 microns, by a table preload spring (3) for a rotary table ...  
WO/1981/003455A1
A multiplicity of abrading discs (20) are individually mounted in an abrading head (10). The discs are each self-aligning for following the contour of the surface to be abraded. The discs (20) are rotated to abrade the surface and a mult...  
WO/1980/000809A1
A plurality of blanks (2) to be surface machined in working machines are placed side by side and fixed in a frame (1), open at both sides, in such a way that the blanks (2) can be machined at least at two sides while the fixation of the ...  
JP2019214082A
[Subject] A CMP device and a method of performing CMP polish corresponding to a variety of wafers are provided. [Means for Solution] Porous zipper 31 to which polish head 10 of CMP device 1 counters the upper surface of wafer W, A source...  
JP6622140B2  
JP6621337B2  
JP2019212816A
[Subject] A device chip is formed, without reducing quality. [Means for Solution] A polyester system sheet allocation process is a processing method of a wafer and allocate a polyester system sheet in the back of a wafer that a plurality...  
JP2019212810A
[Subject] A device chip is formed, without reducing quality. [Means for Solution] A plurality of devices are the processing methods of a wafer which divides into each device chip a wafer formed in each field of the surface divided by div...  
JP2019212811A
[Subject] A device chip is formed, without reducing quality. [Means for Solution] A plurality of devices are the processing methods of a wafer which divides into each device chip a wafer formed in each field of the surface divided by div...  
JP2019212815A
[Subject] A device chip is formed, without reducing quality. [Means for Solution] A polyester system sheet allocation process is a processing method of a wafer and allocate a polyester system sheet in the back of a wafer that a plurality...  
JP2019535540A
The present invention relates to a wire saw (10), and is the wire saw concerned, The 1st wire guide roller (1) and the 2nd wire guide roller (2) for supporting a cutting field (19) formed from a cutting wire, A wire guide roller (1, 2) i...  
JP2019212734A
[Subject] Cutting fluid which invades from a crevice between a frame of a zipper table and a table pedestal provides a cutting apparatus which can stop low a possibility of reaching a porous board. [Means for Solution] A zipper table whi...  
JP2019212842A
[Subject] Even thinness of 30 micrometers or less maintains a form, and a metaphor polyether ether ketone film provides a spacer for wafers which can be manufactured easily or can be dealt with. [Means for Solution] When vacuum adsorptio...  
JP2019212803A
[Subject] Even thinness of 30 micrometers or less maintains a form, and a metaphor polyether ether ketone film provides a spacer for wafers which can be manufactured easily or can be dealt with. [Means for Solution] When back grinding of...  
JP2019212814A
[Subject] A device chip is formed, without reducing quality. [Means for Solution] A polyester system sheet allocation process is a processing method of a wafer and allocate a polyester system sheet in the back of a wafer that a plurality...  
JP2019212812A
[Subject] A device chip is formed, without reducing quality. [Means for Solution] A plurality of devices are the processing methods of a wafer which divides into each device chip a wafer formed in each field of the surface divided by div...  
JP2019212817A
[Subject] A device chip is formed, without reducing quality. [Means for Solution] A polyester system sheet allocation process is a processing method of a wafer and allocate a polyester system sheet in the back of a wafer that a plurality...  
JP2019209427A
[Subject] It prevents grinding the end face of a steel pipe too much, and provides a device which can realize stabilization and mass production nature of product quality by automation. [Means for Solution] In end face processing device 1...  

Matches 851 - 900 out of 9,077