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| Number | Title | Issue Date |
| 4424649 | Abrasive cutter An abrasive cutter for cutting metallurgical samples and the like including a motor-driven rotatable abrasive cutter wheel, a vise assembly for holding a workpiece to be cut, and a manually operable workpiece advance lever which is actuated by an operator... | 01/10/1984 |
| 4407262 | Wafer dicing apparatus Installation for the sawing of wafers of semiconductor material encompassing an alignment station (1), a sawing station (9), and a cleaning station (7). A handling device, provided to convey the wafers from one station to another, while ensuring a perfect... | 10/04/1983 |
| 4406274 | Sound arrester of circular blade A sound arrester of a circular blade which is able to be rotated around an axis substantially disposed horizontally for cutting stone or the like is provided. The sound arrester includes a cover portion for covering approximately the upper half portion of... | 09/27/1983 |
| 4376356 | Cut-off saws My invention is particularly adapted for metal saws having disc-like cutters, and especially abrasive disc saws, wherein the saw is fixed to a shaft which is rotatable within a bearing located at one end of a rocker arm. A drive motor, preferably an elect... | 03/15/1983 |
| 4350552 | Method and apparatus for cutting stone panels The invention relates to a method of cutting thin laminae of stone, e.g. marble, which comprises bonding a backing layer to the opposed faces of a slab of stone, supporting the slab with backing layers attached, in an upward position on its edge, cutting ... | 09/21/1982 |
| 4328553 | Method and apparatus for targetless wafer alignment A method and apparatus for targetless X, Y and θ alignment of a semiconductor wafer having thereon a large number of identical microcircuits or dies that are arranged in a pattern to form rows and columns separated by scribe lines or "streets." The orien... | 05/04/1982 |
| 4327703 | Method of preparing concrete column for attachment to beam A method of preparing the upper end of a concrete column containing elongated reinforcing elements for connection to a cast-in-place beam supported by the column. The method comprises the steps of determining the elevation at which the column is to engage... | 05/04/1982 |
| 4323049 | Quartz wafering machine A machine for wafering bars of quartz or other minerals wherein a plurality of wafers can be manufactured by a simultaneous pass of the machine is provided. The structure comprises a framework, an implement which supports the bars that are to be wafered, ... | 04/06/1982 |
| 4315494 | Masonary saw jig The present invention relates to a mitre guide jig adapted for use with a masonary saw. The jig comprises a body portion and an end portion to which the body portion is adjustably secured. The body portion includes a single flat work piece receiving face ... | 02/16/1982 |
| 4253280 | Method of labelling directional characteristics of an article having two opposite major surfaces In the production of varistors, diode chips are cut from a p-n sheet-diffused semiconductor wafer. Instead of having conventional rectangular shapes, the chips have a rhomboidal shape. This makes the shape of the chips asymmetric in that one surface of ea... | 03/03/1981 |
| 4243011 | Dust shroud for pipe-cutting portable circular saw A dust shroud is disclosed for a pipe-cutting portable circular saw. The shroud comprises upper and lower blade housings which are nested and guided so that the lower housing can be moved into and out of the upper housing. The lower periphery of the lower... | 01/06/1981 |
| 4236356 | Cutting saw and concrete groover An apparatus for cutting material or grooving concrete has a housing including a curved top for partially accommodating one or more circular saw blades. The housing has a bottom having an opening permitting partial protrusion of the saw blade into cutting... | 12/02/1980 |
| 4227348 | Method of slicing a wafer The quality of the as-sawn surfaces of a wafer is improved by preventing the saw blade from striking the wafer surfaces during the blade return stroke by leaning the just-sawn wafer away from the blade and by slightly retracting the face of the ingot from... | 10/14/1980 |
| 4217689 | Process for preparing semiconductor devices A process for preparing semiconductor devices by forming an insulation coating, such as a low melting point glass, on the surface of a semiconductor substrate and then forming a shaved groove through the insulation coating to the inner part of the semicon... | 08/19/1980 |
| 4210184 | Circular resaw apparatus and method A resaw apparatus and method for rapidly and accurately cutting elongate wood cants longitudinally. A thin-kerfed circular saw blade is utilized to cut the cants and a high-speed feed mechanism, having two sets of separately driven dual rollers which pinc... | 07/01/1980 |
| 4188934 | Step safety groover apparatus A step groover apparatus has a housing to which a direct drive means is attached. The drive means has a rotatable shaft extending into the interior of the housing and on which a plurality of grooving blades are fixed in space relationship. The blades exte... | 02/19/1980 |
| 4188935 | Roller handle for saw A handle assembly for a portable powered saw of the chain saw type which has an inverted, generally U-shaped handle with its upper central portion extending over the saw and the depending legs extending downwardly along opposite sides of the saw with a ro... | 02/19/1980 |
| 4167174 | Method and apparatus for aligning the streets of a semiconductor wafer A method and apparatus for aligning the streets of a semiconductor wafer for sawing or scribing with a single motion control switch. One end of a street is first aligned with a reticle in the Y-direction with this motion control switch. The wafer is then ... | 09/11/1979 |
| 4138304 | Wafer sawing technique A method for dividing a semiconductor wafer into pellets includes attaching the wafer to a vinyl membrane with a coupling material which adheres more tenaciously to the membrane than to the pellets and sawing completely through the wafer and at least part... | 02/06/1979 |
| 4131103 | Apparatus for sawing stone An apparatus for sawing a stone block to be severed into a plurality of slabs. The apparatus comprises a plurality of saw blades characterized by arranging said blades in series in the cutting plane of said blades. The cutting depth of each blade in the s... | 12/26/1978 |
| 4107883 | Apparatus for controlling feed mechanisms of grinding and cutting apparatus Apparatus for controlling infeed speed of a power screw feed system or the like for cutting and abrading materials in response to resistance sensed by the feed mechanism moving the material into contact with the machine tool.... | 08/22/1978 |
| 4080952 | Rim pump A lapidary saw is provided including a flat rotary blade having a circular peripheral cutting edge with the blade supported for rotation in an up-sawing angular direction for cutting a stone at a cutting station with an upward sweep of the saw. A bottom p... | 03/28/1978 |
| 4078539 | Rock gripper assembly A chuck assembly for gripping and holding objects including a base, a face plate rotatably mounted on the base, and a plurality of arms pivotally connected to and extending outwardly from the face plate for swinging toward and away from each other. A thre... | 03/14/1978 |
| 4068648 | Brick saw apparatus A rotating brick saw has an enclosure which substantially surrounds a rotating saw, a sliding table which carries a brick into the saw and tracks on which the table slides. The enclosure has an opening at its distal end and a pit beneath the opening for c... | 01/17/1978 |
| 4044748 | Continuous cutting machine for stone and building materials A cutting machine for petrous and building materials comprises first, second and third endless conveyor belts. The first belt is made up of a plurality of plates which extend transversely to the direction of travel of the first belt and are journalled tog... | 08/30/1977 |
| 4033319 | Blade guide and slab support for lapidary saw A blade guide for lapidary saws acts to prevent blade wobble and thus an uneven cut of the resulting slab. The blade guide comprises holder means, mounting means which attach the holder means to the saw table, and guide means which releasably attach to th... | 07/05/1977 |
| 4022182 | Dust and water confinement unit for portable circular saw A housing unit is disclosed for use with portable circular saws. The housing unit comprises a rigid structure which completely encloses the cutting blade of the saw and which confines water and dust particles so as to permit their removal by suction means... | 05/10/1977 |
| 4016855 | Grinding method A method for segmenting a plate-like material, particularly a semiconductor wafer on which a plurality of elements are formed in regular arrangement, is provided. Segmentation is performed while flowing a fluid over the entire surface of the plate-like ma... | 04/12/1977 |
| 3976045 | Stone cutting machine A stone cutting machine is disclosed comprising a frame, a sliding beam movably supported on the frame, and one or more flexible wires having a plurality of cutting or honing segments projecting from the periphery thereof carried tautly by the beam. Motor... | 08/24/1976 |
