Patents Represented by Attorney, Agent or Law Firm Peter G. Dilworth
  • Patent number: 6287483
    Abstract: A method for stabilizing an unsaturated polymerizable organic compound from premature polymerization includes addition thereto of an imidazoline or imidazolidine compound, optionally with ring substituents including hydroxyl, oxyl, or oxide moieties as well as aliphatic, alicyclic and/or heterocyclic moieties.
    Type: Grant
    Filed: May 26, 1998
    Date of Patent: September 11, 2001
    Assignee: Uniroyal Chemical Company, Inc.
    Inventors: John M. DeMassa, Stephen M. Fagan
  • Patent number: 6211308
    Abstract: A method for coating a textile includes applying a substantially water-free, energy-curable, polymer-forming composition to the textile and exposing the textile and composition to a source of energy under such conditions as to generate chemically active sites on the surface of the textile and polymerize the composition. The resulting polymer is grafted onto the textile. Preferably, the energy is derived from electron beam radiation. The composition includes an epoxy oligomer having at least two ethylenically unsaturated moieties, and at least one alkoxylated polyol monomer having at least two ethylenically unsaturated moieties and capable of being copolymerized with the epoxy oligomer. Preferably, the composition also includes a surface active agent capable of rendering the uncured composition dispersible in water. Optionally, the composition can contain a colorant, and photoinitiator. The composition is especially suitable for use as a screen printing ink and coating material for textiles.
    Type: Grant
    Filed: August 20, 1998
    Date of Patent: April 3, 2001
    Assignee: Henkel Corporation
    Inventor: Marie-Esther Saint Victor
  • Patent number: 6103776
    Abstract: Phenolic amides, useful as stabilizers for organic materials such as polyols and polyurethanes, possess the general formula ##STR1## wherein n is 0 to 3, R.sub.1 is alkyl of from 1 to about 6 carbon atoms, R.sub.2 is hydrogen or alkyl of from 1 to about 6 carbon atoms, R.sub.3 is hydrogen or hydrocarbyl of up to about 20 carbon atoms, optionally containing one or more heterocyclic groups, R.sub.4 is hydrocarbyl of up to about 20 carbon atoms, optionally containing one or more heterocyclic groups, or R.sub.3 and R.sub.4 together with the nitrogen atom to which they are bonded are joined together to form a heterocyclic group, optionally containing one or more additional heterocyclic atoms.
    Type: Grant
    Filed: January 26, 1999
    Date of Patent: August 15, 2000
    Assignee: Uniroyal Chemical Company, Inc.
    Inventors: Robert G. Rowland, John R. Baranski
  • Patent number: 6048958
    Abstract: Diketo dinitriles are produced from the reaction of a diester and a nitrile in the presence of an alkali metal base. Polymers derived from the diketo dinitriles are useful as molding resins.
    Type: Grant
    Filed: December 1, 1998
    Date of Patent: April 11, 2000
    Assignee: Henkel Corporation
    Inventor: Louis Rebrovic
  • Patent number: 5990258
    Abstract: A polyurethane elastomer possessing high resilience and high clarity is obtained by subjecting to polyurethane elastomer-forming conditions a polyurethane elastomer-forming reaction mixture comprising:a) an isocyanate selected from the group consisting of diphenyl methane diisocyanate, isocyanate obtained from the reaction of polyol with MDI and mixtures thereof;b) at least one polyol; and,c) at least one diol chain extender of the general formula:HO--(CH.sub.2).sub.x --OHwherein x is an integer from 5 to about 16.
    Type: Grant
    Filed: November 10, 1997
    Date of Patent: November 23, 1999
    Assignee: Uniroyal Chemical Company, Inc.
    Inventor: Thomas H. Peter
  • Patent number: 5917044
    Abstract: Phenolic amides, useful as stabilizers for organic materials such as polyols and polyurethanes, possess the general formula ##STR1## wherein n is 0 to 3, R.sub.1, is alkyl of from 1 to about 6 carbon atoms, R.sub.2 is hydrogen or alkyl of from 1 to about 6 carbon atoms, R.sub.3 is hydrogen or hydrocarbyl of up to about 20 carbon atoms, optionally containing one or more heterocyclic groups, R.sub.4 is hydrocarbyl of up to about 20 carbon atoms, optionally containing one or more heterocyclic groups, or R.sub.3 and R.sub.4 together with the nitrogen atom to which they are bonded are joined together to form a heterocyclic group, optionally containing one or more additional heterocyclic atoms.
    Type: Grant
    Filed: April 15, 1997
    Date of Patent: June 29, 1999
    Assignee: Uniroyal Chemical Company, Inc.
    Inventors: Robert G. Rowland, John R. Baranski
  • Patent number: 5744365
    Abstract: A calorimetric method is provided for determining the presence or absence of a corrosion-inhibitory level of carboxylate anion in used aqueous engine coolant.
    Type: Grant
    Filed: March 18, 1997
    Date of Patent: April 28, 1998
    Assignee: Texaco Inc.
    Inventors: Regis J. Pellet, Leonard S. Bartley, Jr., Paul M. V. Van de Ven
  • Patent number: 5702674
    Abstract: Manganese oxide octahedral molecular sieves are provided in which a portion of the framework manganese is substituted by at least one other metal, e.g., a transition metal.
    Type: Grant
    Filed: June 24, 1996
    Date of Patent: December 30, 1997
    Assignee: Texaco Inc.
    Inventors: Chi Lin O'Young, Yan-Fei Shen, Roberto Nguyen Dequzman, Steven Lawrence Suib
  • Patent number: 5695618
    Abstract: A method of oxidatively coupling methane onto a manganese oxide molecular sieve comprising:(a) passing methane through a microwave plasma activation flow reaction zone onto a manganese oxide molecular sieve, whereby polymer-free methane coupled products are produced; and,(b) recovering the polymer-free methane coupled products.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: December 9, 1997
    Assignee: Texaco Inc.
    Inventors: Chi-Lin O'Young, Yan-Fei Shen, Mark William Simon, Steven Lawrence Suib, Richard Paul Zerger
  • Patent number: 5601376
    Abstract: A writing instrument is provided which includes a body having a barrel portion and a plunger portion. The barrel portion has opposed front and rear ends for housing a replaceable writing cartridge and a spring for biasing the cartridge toward the rear end of the barrel portion. The plunger portion is removably maintained in the rear end of the barrel portion and is configured for moving the cartridge between a retracted portion and a protracted position and for rotational and axial movement with respect to the center line of the barrel portion for removing the plunger portion to replace the cartridge. A clip member is pivotably mounted to the body of the writing instrument and includes a latch for selectively engaging the body of the writing instrument when the cartridge is in a protracted position.
    Type: Grant
    Filed: July 25, 1994
    Date of Patent: February 11, 1997
    Assignee: BIC Corporation
    Inventors: Iskandar Badr, Edgar B. Chiswell
  • Patent number: 5454655
    Abstract: A writing instrument which includes a body having a barrel portion and a replaceable cartridge housed within the barrel portion. A retractor mechanism is removably maintained in a rear end of the barrel portion and is adapted for axial movement between a retracted position and a protracted position. The instrument further includes structure for biasing the replaceable cartridge toward the rear end of the barrel portion and for maintaining the retractor mechanism in the protracted position by imparting a moment, or force, on the retractor mechanism acting relative to the axial centerline of the barrel portion.
    Type: Grant
    Filed: November 29, 1993
    Date of Patent: October 3, 1995
    Assignee: BIC Corporation
    Inventor: Edgar B. Chiswell
  • Patent number: 5448823
    Abstract: An apparatus for manufacturing suture-needle assemblies in which the suture thread is connected to the needle shank through the provision of heat shrinkable tubing. The apparatus for securing the heat shrink tubing to the shank of the needle essentially comprises a needle holder, a heat source, a video camera and monitor device and means for insuring heating of the tubing only at the shank. An apparatus is also disclosed for securing the suture thread to the needle shank where the needle shank is already provided with the heat shrink tubing secured thereon. The apparatus for securing the suture thread to the needle shank includes a needle holder, a heat source, a heat cover to create a heating chamber, as well as video camera and monitor means to enlarge the image for an operator, as well as temperature regulating equipment.
    Type: Grant
    Filed: March 8, 1991
    Date of Patent: September 12, 1995
    Assignee: United States Surgical Corporation
    Inventors: Richard N. Granger, Michael S. Kassim
  • Patent number: 5415487
    Abstract: The subject invention is directed to a cartridge for a writing instrument. In particular, the writing instrument includes a surface against which the cartridge abuts. The cartridge includes a tubular body for containing ink which has a front end including an applicator for applying the ink, and a plug member disposed at least partially in a rear end of the tubular body of the cartridge. The plug member includes a path for permitting airflow into the tubular body, and a flange for cushioning the cartridge against the abutment surface of the writing instrument so as to inhibit separation of the ink from the ink applicator and absorb pressure exerted upon the ink applicator during writing.
    Type: Grant
    Filed: June 8, 1993
    Date of Patent: May 16, 1995
    Assignee: BIC Corporation
    Inventors: Ronald S. Rukan, Barry W. Chadwick
  • Patent number: 5399041
    Abstract: An writing instrument having an elongated tubular body formed from a thin sheet of material being rolled upon itself. A marking substance positioned within a bore of the body is prevented from leaking through the body by the application of a coating to at least one side of the sheet so that a lining is formed in the bore.
    Type: Grant
    Filed: December 3, 1993
    Date of Patent: March 21, 1995
    Assignee: BIC Corporation
    Inventor: Edgar B. Chiswell
  • Patent number: 5336006
    Abstract: A writing instrument is provided which includes a body having a barrel portion and a plunger portion. The barrel portion has opposed front and rear ends for housing a replaceable writing cartridge and a spring for biasing the cartridge toward the rear end of the barrel portion. The plunger portion is removably maintained in the rear end of the barrel portion and is configured for moving the cartridge between a retracted portion and a protracted position and for rotational and axial movement with respect to the center line of the barrel portion for removing the plunger portion to replace the cartridge. A clip member is pivotably mounted to the body of the writing instrument and includes a latch for selectively engaging the body of the writing instrument when the cartridge is in a protracted position.
    Type: Grant
    Filed: October 9, 1992
    Date of Patent: August 9, 1994
    Assignee: Bic Corporation
    Inventors: Iskandar Badr, Edgar B. Chiswell
  • Patent number: 5306258
    Abstract: A syringe is disclosed which includes a needle body having a proximal end and a distal end, a needle attached to the distal end of the needle body, a plunger for drawing fluid into the needle body through the needle, and a protective sheath configured and dimensioned to be positioned about the needle body and movable between a first distal position whereby the needle is shielded by the sheath and a proximal position whereby the needle is exposed. A system of slots and pegs is provided to releasably retain the protective sheath in the first distal position and to releasably retain the protective sheath in the proximal position. Also a system to retain and lock the protective sheath in a second distal position after use whereby the needle is protected by the sheath. A method of using the safety syringe to protect the needle from inadvertent contact with the user or any person in the area of use is also disclosed.
    Type: Grant
    Filed: April 3, 1991
    Date of Patent: April 26, 1994
    Inventor: Ricardo L. de la Fuente
  • Patent number: 5306289
    Abstract: A braided suture exhibits one or more improved properties, e.g., reduced chatter, greater flexibility and/or better hand, than that of a braided suture of known, or standard, construction and of substantially equivalent size.
    Type: Grant
    Filed: February 26, 1991
    Date of Patent: April 26, 1994
    Assignee: United States Surgical Corporation
    Inventors: Donald S. Kaplan, Matthew E. Hermes, Ross R. Muth
  • Patent number: D351554
    Type: Grant
    Filed: April 14, 1992
    Date of Patent: October 18, 1994
    Assignee: Tritec International Corp.
    Inventor: Jisu Kim
  • Patent number: D354080
    Type: Grant
    Filed: September 10, 1993
    Date of Patent: January 3, 1995
    Assignee: BIC Corporation
    Inventor: Jean F. Chevalier
  • Patent number: D378917
    Type: Grant
    Filed: January 9, 1995
    Date of Patent: April 22, 1997
    Assignee: Renault Metal Products, Ltd.
    Inventor: David Ohayon