Patents Represented by Attorney Arthur A. Loiselle, Jr.
  • Patent number: 5313742
    Abstract: A cutting wheel, especially suitable for dicing silicon wafers and the like, which has a high degree of stiffness as a result of the wheel being a monolith with a thick inner section and thin outer or cutting section.
    Type: Grant
    Filed: January 11, 1991
    Date of Patent: May 24, 1994
    Assignee: Norton Company
    Inventors: Robert F. Corcoran, Jr., Srinivasan Ramanath
  • Patent number: 5250607
    Abstract: An interpenetrating polymer system prepared from a mixture of a moisture-cured prepolymer component and an elastomeric component which is non-reactive with the prepolymer component, wherein exposure of the mixture to ambient moisture cures the prepolymer component entrapping the elastomeric component and forming a product which is essentially thermoset. The product may be essentially non-foamed or highly foamed and and either tack-free or self-adhesive. It is particularly suitable for use as sealing gaskets, sheet stock, tubing, and as sealant-encapsulants.
    Type: Grant
    Filed: January 22, 1990
    Date of Patent: October 5, 1993
    Assignee: Norton Company
    Inventors: Ahmet Comert, Michel Ladang, Dominique Petit
  • Patent number: 5243789
    Abstract: 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.
    Type: Grant
    Filed: January 23, 1991
    Date of Patent: September 14, 1993
    Assignee: Norton Company
    Inventor: Dan D. Bacic
  • Patent number: 5222890
    Abstract: The present invention relates to a device for the sagger-less burning of crockery comprising setting plates (2) and individual supports (1) which are designed as separate components from the setting plates (2), each printer's bit (2) being supported by two individual supports (1) and the ratio of the number of setting plates to the number of individual supports being 1:1.
    Type: Grant
    Filed: June 1, 1989
    Date of Patent: June 29, 1993
    Assignee: Norton Company
    Inventor: Hans Payr
  • Patent number: 5191508
    Abstract: A process for producing a ceramic igniter comprising forming a slot in a green igniter body prior to densification and inserting into the slot an electrically non-conductive material is described. In addition, a ceramic igniter containing a slot insert produced by the process of the invention is disclosed. The inventon is particularly directed to single and double hairpin-shaped igniters.
    Type: Grant
    Filed: May 18, 1992
    Date of Patent: March 2, 1993
    Assignee: Norton Company
    Inventors: Scott R. Axelson, John T. Vayda
  • Patent number: 5167674
    Abstract: An improved superabrasive composition for grinding applications comprising a superabrasive material, a bismaleimide-triazine addition copolymer resin which as a cured polymer exhibits (i) a glass transition temperature (Tg) of at least about 280.degree. C. and (ii) a long term thermal resistance of at least about 180.degree. C., a free radical generating initiator, and preferably a catalyst, is disclosed. The superabrasive abrasive composition is particularly useful as a cutting edge in a high performance cutting wheel.
    Type: Grant
    Filed: April 13, 1992
    Date of Patent: December 1, 1992
    Assignee: Norton Company
    Inventor: Prasad V. Ika
  • Patent number: 5164136
    Abstract: Gasket formed in place on a surface of an article by producing an initial elongated bead of a selected cross-sectional area and bringing a mold cavity having the same cross-sectional area into contact with the surface to produce the final shape of the bead on the surface.
    Type: Grant
    Filed: June 7, 1991
    Date of Patent: November 17, 1992
    Assignee: Norton Company
    Inventors: Ahmet Comert, Dominique Petit
  • Patent number: 5154139
    Abstract: A tube block containing a ribbed surface for prtecting a boiler tube assembly from corrosion is disclosed. The improved design protects the tube assembly while at the same time permitting excellent heat transfer.
    Type: Grant
    Filed: May 14, 1990
    Date of Patent: October 13, 1992
    Assignee: Norton Company
    Inventor: Donald K. Johnson
  • Patent number: 5139654
    Abstract: Apparatus for quickly taking and filtering liquid taken from a body of liquid comprises a bailer for taking and containing a sample of the liquid therein. The bailer has an upper end portion adapted for quickly disconnecting and connecting a liquid pressurizing device including a hand operated fluid pump or regulated tank of compressed gas. A lower end portion of the bailer is provided with a ball or poppet check valve controlling the flow of liquid to and from the bailer by way of an internal opening adapted for quickly connecting and disconnecting a filtering unit to and from the bailer. The filtering unit has a disposable filter element inside of a housing attached to an upper adapter with a liquid passage therein quickly inserted into sealing engagement with the internal opening of the bailer and which opens the ball check valve. A lower end of the filter housing is connected by another adapter into which a flow control valve is quickly connected to and disconnectable from.
    Type: Grant
    Filed: October 22, 1990
    Date of Patent: August 18, 1992
    Assignee: Norton Company
    Inventor: Robert E. Carpenter
  • Patent number: 5134629
    Abstract: A high frequency core and coil electric metal melting furnace is shown. This furnace has a lined channel in its inductor for carrying the molten metal. The invention provides an improved inductor for a core and coil furnace that is not subject to leakage of the molten metal from the channel into the rammed refractory support bed for the channel which leakage otherwise shortens the lift of the furnace. Also a method of lining the channel in the inductor for carrying the molten metal which forms the core is disclosed.
    Type: Grant
    Filed: February 8, 1990
    Date of Patent: July 28, 1992
    Assignee: Norton Company
    Inventor: Gerard M. Cullan
  • Patent number: 5096517
    Abstract: Hollow bodies are sound insulated by placing partial dams inside of the hollow bodies and filling the bodies with a polymer composition. The partial dams facilitate more complete filling of the hollow bodies with the polymer composition which is fluid when injected into the bodies.
    Type: Grant
    Filed: April 24, 1990
    Date of Patent: March 17, 1992
    Assignee: Norton Company
    Inventors: Ahmet Comert, Dominique Petit
  • Patent number: 5061295
    Abstract: An improved abrasive product such as a grinding wheel is disclosed. The abrasive product contains an active filler mixture of tin, FeS.sub.2, and K.sub.2 SO.sub.4, which mixture improves the grinding quality and versatility of the abrasive product.
    Type: Grant
    Filed: October 22, 1990
    Date of Patent: October 29, 1991
    Assignee: Norton Company
    Inventors: Gordon E. Hickory, Michael J. White
  • Patent number: 5056807
    Abstract: Skis of laminated construction are assembled by joining the several lamellae with a hot melt adhesive which preferably contains an effective amount of an adhesion promoting agent. The hot melt adhesive is preferably a linear polyester, polyesteretheramide, polyetherester, polyamide, polyetherurethane, copolymer of ethylene-vinylacetate, polyesteramide, or polyetheramide, and when the adhesive is based on a copolymer, it is more preferable still that the copolymer is a block copolymer.
    Type: Grant
    Filed: March 26, 1990
    Date of Patent: October 15, 1991
    Assignee: Norton Company
    Inventors: Ahmet Comert, Michel Ladang, Dominique Petit
  • Patent number: 5045237
    Abstract: The present invention is an electrical device made up of a mixture of silicon carbide and molybdenum disilicide, and may include silicon nitride or aluminum nitride or boron nitride. An electrical device is also disclosed which is particularly suited for use as an igniter in liquid and gas fuel burning systems. The device is made up of a sintered, preferably hot-pressed, mixture of fine powders of aluminum nitride or silicon nitride, silicon carbide and molybdenum disilicide where, when all three are present, they are present in substantial quantities.
    Type: Grant
    Filed: October 14, 1988
    Date of Patent: September 3, 1991
    Assignee: Norton Company
    Inventor: Malcolm E. Washburn
  • Patent number: 5021375
    Abstract: Chrome oxide refractory materials which are a mixture of coarse fused chrome oxide particles and fine chrome oxide particles are disclosed as resistant to silica attack. The refractory materials have a Cr.sub.2 O.sub.3 content of at least about 98.5% and substantially no MgO.
    Type: Grant
    Filed: April 19, 1990
    Date of Patent: June 4, 1991
    Assignee: Norton Company
    Inventor: Anthony K. Butkus
  • Patent number: 5010046
    Abstract: An improved chromia-magnesia refractory product of co-fused chromia-magnesia grains bonded by an in situ formed chromia bond is prepared by substantially avoiding the presence of grains that will pass through a screen with openings of 150 microns. The resultant product exhibits improved resistance to silicieous materials such as are present in coal slags.
    Type: Grant
    Filed: March 5, 1990
    Date of Patent: April 23, 1991
    Assignee: Norton Company
    Inventors: Anthony K. Butkus, Scott D. Martin
  • Patent number: 5008132
    Abstract: Finely divided silicon carbide materials, particularly powders, whiskers and short fibers, are provided with a titanium nitride surface coating by the process of (i) placing a low carbon diffusivity layer atop the silicon carbide, (ii) placing a titanium metal coating atop the low carbon diffusivity layer, and (iii) nitriding the titanium metal.
    Type: Grant
    Filed: June 6, 1989
    Date of Patent: April 16, 1991
    Assignee: Norton Company
    Inventors: Shih-Yee Kuo, Hyun-Sam Cho, Jeffrey D. Bright
  • Patent number: 5004544
    Abstract: Strong and durable silicon nitride filtration membranes with effective separating layers having effective pore diameters less than about 1 micron are produced by depositing a source of silicon onto a porous microfilter support, removing any liquid used in the depositing, and subjecting the silicon source to nitridation conditions. Suitable sources of silicon include silicon per se and silica. When silica is used, a suitable reducing agent is deposited therewith to reduce the silica to silicon in situ.
    Type: Grant
    Filed: November 13, 1989
    Date of Patent: April 2, 1991
    Assignee: Norton Company
    Inventors: Robert A. Hay, Craig A. Willkens, Arsenault, Normand P.
  • Patent number: 5001091
    Abstract: Ceramic molding or casting powders, particularly nitride, oxide and carbide powders, that have substantial internal surface and volume produce improved dispersions after being coated with a cover material, such as polyethylene glycol, that reduces the specific surface area of the powder by at least about 10% and reduces the amount of penentration of the binder used for dispersion into the internal volume of the powder. The viscosity of dispersions of such coated powders, or of conventional uncoated ceramic powders, can be further reduced by treatment of the powders with organotitanate, organozirconate, or organosilane coupling agents that are chosen to interact favorably with the specific powders and binders used.
    Type: Grant
    Filed: March 9, 1989
    Date of Patent: March 19, 1991
    Assignee: Norton Company
    Inventors: Vimal K. Pujari, Raymond L. Fournier
  • Patent number: 4998384
    Abstract: A combination of a cup shaped or cylindrically shaped grinding wheel and a mounting means for such a wheel.
    Type: Grant
    Filed: September 1, 1989
    Date of Patent: March 12, 1991
    Assignee: Norton Company
    Inventors: William L. Bouchard, Robert E. Cummings, Paul W. Kalinowski, Charles W. Sudol