Did You Know...
...that the Slinky toy was the result of a failed attempt by engineer Richard James to produce an antivibration device for ship instruments? His goal was to develop a spring that would instantaneously counterbalance the wave motion that rocks a ship at sea. Instead, he developed the Slinky.
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| Number | Title | Issue Date |
| 7946907 | Saw blade gullet configuration A saw blade includes a circular core having a plurality of cutters disposed along a periphery thereof, and a central bore configured to receive an arbor of a rotating power tool. A plurality of gullets is located in spaced relation between the cutters, extending rad... | 05/24/2011 |
| 7695353 | Grinding wheel In a grinding wheel in which abrasive tips for rough grinding and abrasive tips for finish grinding are alternately bonded to a periphery of a disk type base rotating about a rotation axis, each abrasive tip includes the abrasive layer formed by bonding abrasive gra... | 04/13/2010 |
| 7632175 | Cutting blade hard-facing method and apparatus A hard-faced cutting blade and hard-facing method is provided. A hard-facing material is applied to a cutting edge of a cutting blade such that a heat-affected transition zone may be created between the base metal and the hard-facing material. The heat-affected tran... | 12/15/2009 |
| 7393268 | Ring system for guiding a medium in an abrasive disk The invention relates to a ring system for accommodating a medium, to a method for compressing and guiding a medium for use in any known grinding methods for abrasive disks that consist of a support (1) and an abrasive lining (2) disposed on the circum... | 07/01/2008 |
| 7384329 | Coolant delivery system for grinding tools An abrasive grinding wheel having an annular grinding face depending from a substantially circular body includes a tubular inner wall which defines an axial bore configured to convey coolant in a downstream direction therethrough. The inner wall is coupled to a conc... | 06/10/2008 |
| 7377839 | Cover for guiding a medium in an abrasive disk The invention relates to a grinding-wheel cover (3) for grinding wheels with a support body (1) and a grinding layer (2) arranged at an edge or face for edge or face use in grinding, a grinding-wheel cover being provided for forming cavities on ... | 05/27/2008 |
| 7364615 | Method of forming pavers containing waste glass particles A method for forming pavers includes mixing cement, water and sand to form a cement composition, and mixing waste glass particles with the cement composition to form a cement-glass particle composition. Thereafter the cement glass particle composition is poured into... | 04/29/2008 |
| 7364502 | Cutting wheel The present invention relates to an improved cutting wheel, comprising a disk-shaped abrasive body having two opposite faces and a non-uniform thickness. ... | 04/29/2008 |
| 7357705 | Diamond disk A novel diamond disc is disclosed. The diamond disc comprises a plurality of diamond grains 2 bound on a disc. The diamond grains 2 are arranged in such a manner that a distance m1 between diamond grains 2 which are located on a common ro... | 04/15/2008 |
| 7357702 | Grinding wheel The present invention refers to an improved grinding wheel, comprising an abrasive and/or cutting disk-shaped member that can be associated substantially coaxially with the free end of the rotating shaft of a grinding machine and equipped with at least one substanti... | 04/15/2008 |
| 7350518 | Blade ring saw blade A flat-sided annular blade for a blade ring saw for cutting hard material such as tile along straight paths and curved paths in which the workpiece is moved through the central portion of the blade. In addition to the usual sintered abrasive diamond coating on the o... | 04/01/2008 |
| 7344573 | Impregnation of grinding wheels using supercritical fluids An additive impregnated abrasive article and method for fabricating the same is provided. The method includes providing an abrasive article having a pore structure, dissolving an additive in a supercritical fluid, and exposing the abrasive article to the additive-la... | 03/18/2008 |
| 7337775 | Cutting tip for diamond tool and diamond tool A cutting tip for a diamond tool and a diamond tool having the same which serve to cut or perforate various brittle materials such as stone, brick, concrete and asphalt. In particular, the cutting tip for a diamond tool and the diamond tool have diamond particles wh... | 03/04/2008 |
| 7331845 | Double end face truing device, double end face truing tool, and double end face truing method First and second end surface truing sections are formed by protruding cylindrical first and second base bodies from opposite end surfaces of a disc-like base of an opposite end surface truing tool in the axial direction thereof and by providing on the external surfa... | 02/19/2008 |
| 7303461 | Method of machining airfoils by disc tools A method for machining a rotor having a disc and a plurality of integral airfoils projecting outwardly from the disc, according to one aspect of the invention, comprises a step of machining each airfoil with a disc tool having a grinding periphery thereof adapted fo... | 12/04/2007 |
| 7303464 | Contact wheel A composite contact wheel, grinding assemblies comprising the same, and methods of abrading cylindrical workpieces using coated abrasive belts. ... | 12/04/2007 |
| 7281970 | Composite articles and methods of making the same Composite articles (e.g., abrasive articles (e.g., abrasive wheels and honing sticks), cutting tools, and cutting tool inserts) comprising a glass-ceramic distributed in a ceramic matrix. ... | 10/16/2007 |
| 7275980 | Abrasive articles with novel structures and methods for grinding Bonded abrasive tools, having novel porous structures that are permeable to fluid flow, comprise a relatively low volume percentage of abrasive grain and bond, and a relatively low hardness grade, but are characterized by excellent mechanical strength and grinding p... | 10/02/2007 |
| 7246762 | Process of forming corn flaking grits of improved quality with minimization of production of corn doubles A process for milling corn comprises mixing water and corn kernels to provide a tempering mixture; holding the tempering mixture for a time and temperature effective for lifting hull off from the endosperm of the corn kernels, but a time and temperature which is not... | 07/24/2007 |
| 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 |
| 7217180 | Diamond tape coating and methods of making and using same A method of forming and applying a diamond coating or other superhard coating to a tool, most preferably a downhole tool, such as a drill bit. A superhard powder is placed into slurry and then formed, preferably using a tape casting method, into a green tape that is... | 05/15/2007 |
| 7214126 | Abrasive material A flexible layer is formed on a surface of a core, and a polishing layer mixed with abrasive particles is formed on a top of the flexible layer. The flexible layer is produced by applying an emulsion adhesive as a flexible layer onto a core and attaching abrasive pa... | 05/08/2007 |
| 7213591 | Groove cutting tool A cutting tool in which a disc-like cutter blade is fixed to a spindle of a rotary electric tool, comprising a first guide plate, which is attached on electric tool side to a cutter blade such that it is capable of rotating freely and makes contact with the referenc... | 05/08/2007 |
| 7210474 | Saw blade with cutting depth gauge Cutting tools are provided that include a circular core with a cutting means located on its periphery, a central bore to receive an arbor of a rotating power tool and one or more perforations extending through the central core. The perforations are disposed along a ... | 05/01/2007 |
| 7204244 | Diamond core drill bit A diamond core drill bit (100) is disclosed. The drill bit has a right-circular cylindrical body (120) with at least one side lubrication hole (122) toward the bottom of the body and a plurality of parallel grooves (124) oriented in an ax... | 04/17/2007 |
| 7204664 | Glass drill bit A method and apparatus for drilling glass using a drill and drill bit. The method utilizes a drill bit having a plurality of shaft diameters, and being provided with a plurality of types of abrasives. By providing a coarser abrasive on a narrow portion of the bit, a... | 04/17/2007 |
| 7195550 | Method and installation for making abrasive grinders and grinder obtained by said method An abrasive product is formed, in a blank making machine, into a layer forming a blank including at least abrasive grains. The layer is then set atop on at least another blank making machine, an assembly line along which successive posts are provided at the site whe... | 03/27/2007 |
| 7195549 | Drum grinding wheel A drum grinding wheel includes an elongated drum configured for coaxial engagement with a spindle of a grinding machine. An exterior surface of the drum extends parallel to a central axis, and a plurality of removable cutters are removably fastened to the exterior s... | 03/27/2007 |
| 7178517 | Diamond saw blade for milling The present invention relates to a diamond saw blade for milling. The rim of the circular metal with a shaft or the front end of the tubular body or an edge of the strip metal has multiple equidistant openings for positioning the diamond grains. The width of the ope... | 02/20/2007 |
| 7175509 | Grinder and method of and apparatus for non-contact conditioning of tool Truing of a grinder is performed by irradiating a laser beam onto abrasive grains on the outermost periphery of the grinder from the tangential direction of the grinder. Truing of the grinder for adjusting the number of working abrasive grains and the shape of the a... | 02/13/2007 |
| 7144315 | Grinding wheel A grinding wheel including a ring-shaped wheel, a first fixing cap, a second fixing cap and a buffer member. The ring-shaped wheel has a fixing section and a working section formed along outer circumference of the fixing section. The first and second fixing caps are... | 12/05/2006 |
| 7134939 | Method for reducing wear of mechanically interacting surfaces The invention is about reducing friction and wear and risk of seizure of mechanically interacting lubricated surfaces. A working surface of a mechanical piece engaged with another piece in relative sliding movement is processed for reduced friction. Two distinctly s... | 11/14/2006 |
| 7131903 | Segmented superabrasive grinding device The present invention is for a grinding device, such as a surface grinding disc or an annular grinding wheel, constructed from a plurality of abrasive segments arranged in an array thereon, wherein the plurality of abrasive segments are embedded in a matrix composit... | 11/07/2006 |
| 7125328 | Glass grinding bit A glass grinding bit includes a monolithic plastic body having a first end, a second end and a central longitudinal axis. A central bore formed as part of the body in alignment with the longitudinal axis for receiving a drive shaft. An outer surface is formed as par... | 10/24/2006 |
| 7125205 | Cutting tool for rough and finish milling A milling cutter comprises a cutter body having two concentric annular rings. An outer ring is provided for rough milling and includes a plurality of cutting inserts equally spaced about the periphery of a cutter body. An inner finish ring comprises a ring member ha... | 10/24/2006 |
| 7117863 | Saw blade for cutting fiber cement An improved circular saw blade designed for cutting fiber cement workpieces, which are becoming more and more prevalent on the construction site, includes a PCD/carbide tip (16) mounted in the rim (31) of the saw blade (10) at six, rather than t... | 10/10/2006 |
| 7108598 | PDC interface incorporating a closed network of features A superhard compact having an improved superabrasive-substrate interface region design for use in drilling bits, cutting tools and wire dies and the like. This compact is designed to provide an interface design to manipulate residual stresses to enhance the working ... | 09/19/2006 |
| 7100595 | Diamond blade In relation to a blade cutting stone or concrete, a blade, preventing wearing of a core while preventing the core from wobbling, cuttable at a stable speed is provided. In a blade formed by providing slots on the outer peripheral edge of a circular core and fixing a... | 09/05/2006 |
| 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 |
| 7090565 | Method of centerless grinding Organic bonded abrasive tools, having controlled microstructures, comprise a relatively low volume percentage of abrasive grain and a relatively low hardness grade, but are characterized by the excellent mechanical strength and efficient grinding performance of much... | 08/15/2006 |
