Patents Represented by Attorney, Agent or Law Firm David Bennett
  • Abrasive products
    Patent number: 5525100
    Abstract: Coated abrasive materials can be made from a backing material and abrasive elements which comprise abrasive particles adhered to a rigid base material, said elements being rigidly adhered to the backing material in a predetermined pattern.
    Type: Grant
    Filed: November 9, 1994
    Date of Patent: June 11, 1996
    Assignee: Norton Company
    Inventors: Robert G. Kelly, Gary J. Kardys
  • Adhesive formulation
    Patent number: 5519095
    Abstract: This invention provides a method of forming a joint in an abrasive belt using a novel joint adhesive comprising a polyesterurethane, a cross-linking agent and a reactive polyol solvent.
    Type: Grant
    Filed: October 31, 1994
    Date of Patent: May 21, 1996
    Assignee: Norton Company
    Inventor: Peter J. Case
  • Modified alpha alumina particles
    Patent number: 5516347
    Abstract: Seeded sol-gel alumina abrasive grits with improved grinding performance incorporating alkali metal oxides selected from rubidium and cesium oxides.
    Type: Grant
    Filed: April 5, 1995
    Date of Patent: May 14, 1996
    Assignee: Saint-Gobain/Norton Industrial Ceramics Corp.
    Inventor: Ajay K. Garg
  • Catalyst carrier
    Patent number: 5512530
    Abstract: A catalyst carrier that is comprised of relatively large alpha alumina particles dispersed in matrix that comprises an alpha alumina formed in situ by a sol-gel process and titania has excellent crush resistance while retaining good porosity and catalytic performance.
    Type: Grant
    Filed: September 12, 1994
    Date of Patent: April 30, 1996
    Assignee: Norton Chemical Process Products Corp.
    Inventors: William H. Gerdes, Donald J. Remus, Thomas Szymanski
  • Non-welded support plate member
    Patent number: 5510061
    Abstract: Channel beams of a particularly advantageous design are provided. These can be assembled to form a non-welded support plate in a confined environment having any desired configuration and later disassembled and reused elsewhere. The support plates are designed to support tower packing materials whether of the structured or dumped kind.
    Type: Grant
    Filed: July 26, 1994
    Date of Patent: April 23, 1996
    Assignee: Norton Chemical Process Products Corp.
    Inventor: Frank D. Moore
  • Securing packing elements
    Patent number: 5510170
    Abstract: Corrugated tower packings which are easier to fabricate from individual corrugated elements having parallel rows of ridges and valleys wherein the elements are provided with extension tabs along the ridges of at least a first surface of such elements to provide a location at which the tabs can be spot welded to a contacting element to provide a rigid structure.
    Type: Grant
    Filed: March 25, 1994
    Date of Patent: April 23, 1996
    Assignee: Norton Chemical Process Products Corp.
    Inventor: Frank D. Moore
  • Titania-based catalyst carriers
    Patent number: 5484757
    Abstract: Advantageous titania based catalyst carriers for use in applications requiring a balance of surface area and crush strength can be obtained by using as the starting material a titania hydrate pulp with a surface area above about 200 m.sup.2 /g and an LOI of from about 15% to about 40% by weight.
    Type: Grant
    Filed: June 2, 1994
    Date of Patent: January 16, 1996
    Assignee: Norton Chemical Process Products Corp.
    Inventors: Thomas Szymanski, Steven A. Rolando, David M. Gough, Gerald S. Bennett
  • Curl resistant coated abrasive backing with radiation curable cloth finishing additive
    Patent number: 5456975
    Abstract: This invention relates to the construction of backings for coated abrasive products that avoid curling tendencies during adhesive curing and subsequent steps. Curling of the backing is discouraged by the utilization of at least one finishing material carried by said fabric which comprises the product of a reaction between an unsaturated hexafunctional acrylated urethane oligomer component and an unsaturated carboxyfunctional monomer component. These components are caused to react with one another to form cross linking when exposed to actinic or electron beam radiation.
    Type: Grant
    Filed: April 3, 1991
    Date of Patent: October 10, 1995
    Assignee: Norton Company
    Inventors: Eugene Zador, Dhiraj H. Darjee, Stanley J. Supkis
  • Superabrasive tool
    Patent number: 5443418
    Abstract: Superabrasive tools incorporating into the structure filamentary particles formed from a microcrystalline alumina confer significant advantages which depend on the orientation of the particles.
    Type: Grant
    Filed: March 29, 1993
    Date of Patent: August 22, 1995
    Assignee: Norton Company
    Inventors: James E. Frodin, Scott Pellow, Jean Kramp
  • Method of producing a non-slip sheet
    Patent number: 5433979
    Abstract: Non-slip laminatable materials are provided by coating a polymer sheet backing with mineral particles adhered to the backing by a radiation curable adhesive.
    Type: Grant
    Filed: August 18, 1994
    Date of Patent: July 18, 1995
    Assignee: Norton Company
    Inventor: David E. Williams
  • Modified polyvinyl chloride composition
    Patent number: 5428087
    Abstract: Finished articles made of flexible polyvinyl chloride (PVC) using plastisol technology are improved in terms of resistance to heat and solvents and reduction in plasticizer migration by incorporating into the traditional plastisol ingredients substantial amounts of blocked di- or polyisocyanates and di- or polyols and/or di- or polyamines, which, upon heating react with each other to form a polymer network within the article while the PVC is gelling.
    Type: Grant
    Filed: November 2, 1993
    Date of Patent: June 27, 1995
    Assignee: Norton Company
    Inventors: Dominique Petit, Michel Ladang
  • Molding shaped articles
    Patent number: 5409645
    Abstract: Shaped ceramic articles can be obtained by forcing a ceramic precursor gel into a belt provided with apertures corresponding to the shapes of the desired articles, freezing the gel in the apertures so that they can be removed without losing structural integrity and then removing the frozen articles from the belt and drying and firing them to produce the desired shaped ceramic articles.
    Type: Grant
    Filed: December 20, 1993
    Date of Patent: April 25, 1995
    Assignee: Saint Gobain/Norton Industrial Ceramics Corp.
    Inventors: Earl R. Torre, Jr., Michael D. Kavanaugh
  • Polymer backed material with non-slip surface using E-beam cured urethane binder
    Patent number: 5401560
    Abstract: Non-slip laminatable materials are provided by coating a polymer sheet backing with mineral particles adhered to the backing by a radiation curable adhesive.
    Type: Grant
    Filed: May 17, 1993
    Date of Patent: March 28, 1995
    Assignee: Norton Company
    Inventor: David E. Williams
  • Abrasive tool
    Patent number: 5383309
    Abstract: An abrasive tool, such as a disc, which is adapted for ready attachment and release from the back-up pad of a sanding or polishing machine by means of a hook and loop means is improved by the interposition of a resilient foam layer between the abrasive-containing layer and the layer comprising the hook and loop attachment means.
    Type: Grant
    Filed: November 9, 1993
    Date of Patent: January 24, 1995
    Assignee: Norton Company
    Inventor: Bruno Sampietro
  • Catalyst carrier
    Patent number: 5384302
    Abstract: A catalyst carrier that is comprised of relatively large alpha alumina particles dispersed in matrix that comprises an alpha alumina formed in situ by a sol-gel process has excellent crush resistance while retaining good porosity and catalytic performance.
    Type: Grant
    Filed: September 8, 1993
    Date of Patent: January 24, 1995
    Assignee: Norton Chemical Process Products Corp.
    Inventors: William H. Gerdes, Donald J. Remus, Thomas Szymanski, James A. Wolford
  • Modified sol-gel alumina abrasive filaments
    Patent number: 5372620
    Abstract: Filamentary abrasive particles formed from a sol-gel alumina modified by rare earth metal oxides have excellent abrasive qualities.
    Type: Grant
    Filed: December 13, 1993
    Date of Patent: December 13, 1994
    Assignee: Saint Gobain/Norton Industrial Ceramics Corporation
    Inventors: Robert A. Rowse, Ronald W. Trischuk
  • Glass-ceramic bonded abrasive articles
    Patent number: 5318605
    Abstract: Abrasive tools are described which comprise abrasive grits held in a glass-ceramic bond in which at least 75% of the bond material is in bond posts or in coatings on individual grains.
    Type: Grant
    Filed: June 3, 1992
    Date of Patent: June 7, 1994
    Assignee: Norton Company
    Inventor: Lee A. Carman
  • Packing element
    Patent number: 5314645
    Abstract: Packing elements of the Pall ring type having improved resistance to crushing even though made from thinner gauge metal can be obtained by providing attachment means that hold overlapping ends of the ring together and resist deformation.
    Type: Grant
    Filed: January 22, 1993
    Date of Patent: May 24, 1994
    Assignee: Norton Chemical Process Products Corp.
    Inventor: Frank Rukovena
  • Process for the preparation of ceramic flakes, fibers, and grains from ceramic sols
    Patent number: 5312791
    Abstract: A process for producing ceramic flake, fiber and grain materials comprising solidifying a hydrated alumina sol, freeze drying the solidified sol and thereafter sintering the freeze dried material is disclosed. Novel ribbed flake material made by the process of the present invention is also disclosed.
    Type: Grant
    Filed: August 21, 1992
    Date of Patent: May 17, 1994
    Assignee: Saint Gobain/Norton Industrial Ceramics Corp.
    Inventors: William S. Coblenz, Michael D. Kavanaugh
  • Structured packing element
    Patent number: D354687
    Type: Grant
    Filed: June 29, 1992
    Date of Patent: January 24, 1995
    Assignee: Norton Chemical Process Products Corp.
    Inventor: Hassan S. Niknafs