...that when IBM conducted a market study of Chester Carlson's invention in 1959, the company concluded that it would take only 5000 units of his new product to saturate the market? IBM therefore declined to be part of the new product introduction. Too bad for IBM. Carlson's invention was the xerography process, and his new product was the beginning of the Xerox Corporation. It is estimated that every day, worldwide, 3,000,000,000 copies are made!!
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| Number | Title | Issue Date |
| 7235007 | Divided grinding tool The invention relates to a grinding tool which comprises at least two detachable parts which are connected together. Both parts form a grinding disk-type body comprising a grinding surface which is interrupted on the peripheral area thereof. Said parts can be adjust... | 06/26/2007 |
| 7094136 | Grinding tool for edge circular processing A pair of profile wheels 14, 18 in which concavely shaped grinding surfaces 141, 181 asymmetrical to each other are opposed to each other at right angle so as to form a concavely shaped grinding surface having a substantially semi-circular section, a g... | 08/22/2006 |
| 7086938 | Grinding segment and grinder stone The invention relates to a grinding segment comprising a ceramic part manufactured of grinding ceramic material and provided with a fastening hole, through which the grinding segment is attached to a frame of a grinder stone by means of a fastening bolt. A fastening... | 08/08/2006 |
| 6994616 | Grinding unit for grinding machines and mounting method for the same A grinding unit assembly, a plurality of which is placed around a cylinder (12) of a grinding machine. Each assembly comprises a grindstone unit (1) and a metal fixture (16). The grindstone holder (3) has on one side face a positioning cu... | 02/07/2006 |
| 6902471 | Heavy-duty tool with a rotationally driven, disk-shaped hub The invention is based on an insertable tool having a rotationally drivable, disk-shaped hub (10, 12), on which a grinding means (14) forming a cutoff disk, grinding disk, roughing disk, or abrasive disk is secured in the radially outer region. ... | 06/07/2005 |
| 6712682 | Grinding wheel fixture A grinding wheel fixture (S) for the accommodation of a dressable grinding wheel (5) is provided with an annular groove (6, 6′, 8) for the accommodation of balancing lugs (9, 10), the balancing lugs (9, 10) being for manual balancing pu... | 03/30/2004 |
| 6058923 | Saw blade The invention relates to a saw blade for cutting, slotting or grooving natural rock and synthetic construction materials, such as concrete, reinforced concrete, brick, asphalt or the like. The saw blade has a sawblade body and a plurality of segments whic... | 05/09/2000 |
| 6024635 | Rotary drum tool A rotatably mounted tool for surface working of construction blocks, e.g. concrete or granite blocks, as well as roadways, incorporates a plurality of flat, planar surfaces which are circumferentially spaced apart around the outer, peripheral surface of t... | 02/15/2000 |
| 5989114 | Composite grinding and buffing disc with flexible rim A unitary composite abrasive disc for one-pass grinding and finishing of a workpiece comprising a flexible epoxy rim bonded to a rigid core.... | 11/23/1999 |
| 5809848 | Method of making a carbide cutting insert A cutting tool insert includes a cutting tip mounted into a first recess of a molded hard refractory compound insert having a second recess of preselected size and shape for locating the insert to a cutting tool. A preferred cutting tip is a diamond and a... | 09/22/1998 |
| 5779528 | Elastomeric mount for grinding wheel, and grinder An elastomeric mount or band is provided for circumferential placement about a bonded abrasive segment of the type generally used to form a segmented grinding wheel assembly of a rotary surface grinder. The band serves to cushion the segment relative to a... | 07/14/1998 |
| 5725416 | Apparatus and method for making and using a combined cutting/grinding wheel A combined cutting/grinding tool comprises a grinding wheel with an exterior circumferential grinding surface for profiling an object surface of a product to be manufactured. The grinding surface includes an abrasive grit. A profile is formed in the grind... | 03/10/1998 |
| 5577954 | Grinding apparatus of welded residue on seam of rail head A grinding apparatus of a welded residue on a seam of a rail head portion including a rail, a machine table capable of moving forward and backward along the rail, an apparatus base erected on a distal end side of the machine table, a first support disk bo... | 11/26/1996 |
| 5567503 | Polishing pad with abrasive particles in a non-porous binder A polishing pad comprises a carrier and layer of a non-porous thermoplastic polymer secured to a surface thereof and containing a mass of discrete abrasive particles, comprising diamond or cubic boron nitride, uniformly dispersed therein. The abrasive par... | 10/22/1996 |
| 5479911 | Diamond impregnated resinoid cutting blade A diamond impregnated saw blade of the type used in dicing saws is adapted for mounting on a high cooling flange or standard flange hubs and useful for cutting very hard objects. The saw blade is made in the form of an annular ring comprising a homogenous... | 01/02/1996 |
| 5423719 | Abrasive tools An abrasive tool such as a drill bit has a body with a working face (10). Undercut recesses (12) are formed in the working face (10). Cutting inserts (16) which present working ends (20) are located in the recesses (12). Locking means (24) in the recesses... | 06/13/1995 |
| 5243789 | Pulpstone A segmental grinding stone, particularly a pulpstone, wherein the segments are assembled to a ring or central support portion through a bolt which passes through a recessed hole in the face of the segment and screws into a nut means.... | 09/14/1993 |
| 5191873 | Useful improvements in sawing devices This invention relates to devices for sawing hard material such as stone, and includes extenders to be affixed to the peripheral surfaces of a sawing core. Each has vertical sidewalls which are spaced-apart from each other by top and bottom spacer element... | 03/09/1993 |
| 5083839 | Apparatus for grooving or grinding pavement A rotary grooving or grinding drum is mounted about a drive shaft. The drum has an inner core of steel, an intermediate sleeve of neoprene rubber and an outer sleeve of steel. The neoprene intermediate sleeve provides absorption of the shocks, jars and ha... | 01/28/1992 |
| 5081797 | Integrated buffing and grinding system The present invention provides an integrated buffing and grinding system. The system includes a first conveyor for transporting an article to a grinding station. The article is grasped by a robot and brought into and out of contact with an abrasive surfac... | 01/21/1992 |
| 4961290 | Mount for grinding wheel A system for mounting the abrasive grinding members of a segmented grinding wheel in the chuck of a rotary surface grinder. A cushioning member is disposed about an end of each segment and extends laterally along its end surfaces. Clamps for holding the s... | 10/09/1990 |
| 4930487 | Cement cutting blade An improved circular saw blade assembly for cutting in a single pass a two tier groove in a concrete areaway. The saw blade body having a first row of cutting elements in the form of a metallic matrices containing fragmented diamond particles secured to t... | 06/05/1990 |
| 4505076 | Means for drivingly attaching a replaceable stone assembly to a master stone holder A mounting assembly for an abrasive member comprising a support structure including a plate member having opposite surfaces and at least one opening extending therethrough between the opposite surfaces, a stone assembly for mounting on the plate member in... | 03/19/1985 |
| 4484560 | Diamond segmented saw blade A diamond segmented saw blade having a steel center is provided with a plurality of sockets about the rim and a plurality of cutting tip supports having diamond impregnated tips. Each socket is provided with an upper surface inclined upwardly and inwardly... | 11/27/1984 |
| 4382350 | Honing stones An improved honing stone which minimizes the vibrations to which the abrasive material is subjected during the honing process. The improved stone has a hole formed in a dead zone thereof. A piece of resilient material is forced into the hole. When the sto... | 05/10/1983 |
| 4265037 | Device for assembling tools on a wheel, particularly cutting tools on a trenching machine The present invention provides a device for assembling tools on a wheel. Stop pins fixed to the wheel cooperate with radial wedges to maintain tool-bearing sectors in a disc formation on the wheel. The pins and the radial wedges are located between adjace... | 05/05/1981 |
| 4069622 | Improvements in or relating to an abrasive wheel An abrasive wheel assembly, preferably an abrasive cut-off wheel, includes a plurality of segments, each of which comprises an embedded fixing or securing plate, preferably metal, that is inserted to a certain degree into the segment and has a projecting ... | 01/24/1978 |
| 4048762 | Segmented grinding wheel A cylindrical wheel has a channel formed at its periphery. A plurality of bolts pass through the sides of the channel and transverse it. A plurality of uniform grinding segements are inserted into the channel. Each segment has a radius on opposite edges. ... | 09/20/1977 |
| 4010583 | Fixed-super-abrasive tool and method of manufacture thereof This improved fixed-super-abrasive tool for grinding and polishing toric and other curvilinear lenses is produced by a novel method of manufacture and comprises a substantially-rigid, super-abrasive-free backing member and a malleable preformed super-abra... | 03/08/1977 |
| 3973359 | Web abrading assembly Apparatus for abrading fabric traveling along a directed path of travel having a plurality of cylindrical members covered with a fabric abrading surface circumferentially supported and spaced from each other for contacting and abrading fabric and means fo... | 08/10/1976 |