Patents Represented by Attorney Anthony J. DeLaurentis
  • Patent number: 4701545
    Abstract: Esters of .alpha.,.alpha.-haloalkyl boronic acids are prepared by the addition of an alkali metal dialkylamide, or some other equivalent sterically hindered base to a mixture of a 1,1-dihaloalkane and a trialkyl borate in an organic solvent at a temperature between about -78.degree. C. and +25.degree. C. In one embodiment, diisopropyl (dichloromethyl)borate is formed by the addition of lithium diisopropylamide to a mixture of dichloromethane and triisopropyl borate in the presence of tetrahydrofuran as the solvent medium at a temperature between about -10.degree. C. and +10.degree. C.
    Type: Grant
    Filed: February 12, 1986
    Date of Patent: October 20, 1987
    Assignee: Washington State University Research Foundation, Inc.
    Inventors: Donald S. Matteson, Gerald D. Hurst
  • Patent number: 4674186
    Abstract: A tool having a handle and a blade secured to and extending generally longitudinally from the handle is adapted for removing the contents of and scraping clean a container for liquid, semi-liquid, semi-solid or solid materials. The tool is rigid and inflexible and the blade is provided with a scoop-like member at the end thereof which is remote from the handle. The blade is also provided with separate scrapers edges which are adapted from scraping the bottom and side walls of the container.
    Type: Grant
    Filed: June 24, 1986
    Date of Patent: June 23, 1987
    Inventor: Philip S. Galiano
  • Patent number: 4657941
    Abstract: A biologically compatible adhesive that is shelf stable as a single component adhesive and includes a mixture of an adhesive promoting and polymerizable monomer system having a free radical polymerizable monomer or prepolymer having ethylenic unsaturation and a phosphorus containing adhesion promoter, a free radical polymerization catalyst, and an accelerator for the catalyst, the accelerator selected from the group consisting of sulfinic acid or salt thereof, amine or amine salt and mixtures thereof.
    Type: Grant
    Filed: November 29, 1984
    Date of Patent: April 14, 1987
    Assignee: Dentsply Research & Development Corp.
    Inventors: Gordon B. Blackwell, Chin-Teh Huang
  • Patent number: 4596389
    Abstract: A tennis ball whose weight is preferably equal to the weight of a conventional or regulation tennis ball and whose diameter is from about 2.800 inches to about 3.500 inches, the ball thus being larger in diameter than a conventional ball so as to encounter increased air resistance during flight, thereby to slow the pace of a game being played with the ball relative to the pace of a game being played with a conventional ball of smaller diameter.
    Type: Grant
    Filed: June 3, 1983
    Date of Patent: June 24, 1986
    Assignee: The Large Tennis Ball Company
    Inventor: Richard Frankowski
  • Patent number: 4525309
    Abstract: Boronate complexes are rearranged in the presence of a Lewis acid catalyst to boronic esters, particularly .alpha.-haloboronic esters.
    Type: Grant
    Filed: March 15, 1983
    Date of Patent: June 25, 1985
    Assignee: Washington State University Research Foundation, Inc.
    Inventors: Donald S. Matteson, Kizhakethil M. Sadhu
  • Patent number: 4470870
    Abstract: A masking apron dispensing apparatus comprises a base, a support member extending generally upwardly from the base, and at least one paper roll support unit mounted to the support member and extending generally perpendicularly therefrom; each paper roll support unit further comprising means for supporting a roll of masking tape adjacent at least one end of the paper roll support unit, means for facilitating positive pressure engagement of the tape against a roll of paper supported on the support unit, and cutter bar means for severing the paper and tape to a desired length. Each of the paper roll support shaft units may support two or more paper rolls and each may support two or more rolls of masking tape. As an alternative embodiment, a hand-carried single paper roll support shaft dispenser is also disclosed.
    Type: Grant
    Filed: January 10, 1984
    Date of Patent: September 11, 1984
    Inventors: Michael E. Driscoll, Wilson O. Boozer, III
  • Patent number: 4426245
    Abstract: A masking apron dispensing apparatus comprises a base, a generally upwardly extending support shaft mounted to the base, and at least one paper roll support unit mounted to the support shaft and extending generally perpendicularly therefrom; each paper roll support unit further comprising means for supporting a roll of masking tape adjacent at least one end of the paper roll support unit, means for facilitating positive pressure engagement of the tape against a roll of paper supported on the support unit, and cutter bar means for severing the paper and tape to a desired length. Each of the paper roll support shaft units may support two or more paper rolls and each may support two or more rolls of masking tape. As an alternative embodiment, a hand-carried single paper roll support shaft dispenser is also disclosed.
    Type: Grant
    Filed: February 22, 1983
    Date of Patent: January 17, 1984
    Inventors: Michael E. Driscoll, Wilson O. Boozer, III
  • Patent number: 4394172
    Abstract: A non-dusting and fast-wetting powdered impression material is prepared by coating at least a portion of the powder components of an otherwise conventional impression material with a surface coating agent prior to mixing with water.
    Type: Grant
    Filed: August 17, 1981
    Date of Patent: July 19, 1983
    Assignee: Dentsply Research & Development Corp.
    Inventors: Max Scheuble, Paul Munsch
  • Patent number: 4285719
    Abstract: A biological toilet and an organic material recycling method in which human liquid and solid waste (i.e., excrement) and cellulosic material and, optionally, kitchen waste (i.e., food and paper scraps and the like kitchen garbage) are deposited into a receptacle and carried by pressure differential into a recycling or composting container wherein, by the application of environmental factors, including moisture, air, warmth and certain bacteria and worms (such as Eisenia Foetida, the red worm) and other wormlike organisms, the organic material is composted or digested and reacted upon to produce a pleasant smelling, uniform, well granulated substantially neutral, active, compost-like plant nutritional material available for easy distribution.
    Type: Grant
    Filed: December 31, 1979
    Date of Patent: August 25, 1981
    Inventor: Jeremy F. Criss
  • Patent number: 4075309
    Abstract: Concentrated magnesium chloride solutions are prepared from industrial liquors or brines by evaporating the liquor in a vacuum in two or more stages in a counter current evaporator with crystallization characteristics up to a final concentration of 440 to 475 g/l MgCl.sub.2, a solid content of 12 to 25% by weight and a final temperature of 95.degree. to 105.degree. C, whereafter the liquor is separated from crude crystallized carnallite and sodium chloride, is debrominated by the addition of chlorine, is neutralized by the addition of lime or dolomite milk, is separated in the heat from solid substances, is cooled to effect further crystallization, and is finally separated as a concentrated magnesium chloride solution containing 400 to 465 g/l MgCl.sub.2.
    Type: Grant
    Filed: March 29, 1977
    Date of Patent: February 21, 1978
    Assignee: Kali und Salz Aktiengesellschaft
    Inventors: Dietmar Kunze, Siegfried Kirchner
  • Patent number: 4074920
    Abstract: A technique for mining coal or similar mineral employing existing auger holes or a specially drilled bore hole into the face of the coal, a guide anchor rod being inserted into the hole and having a pulley at its inner end, a first cable passing over the pulley pulls a coal recovery scoop into the hole, an additional cable is attached to the scoop and extends out of the hole to a winch which pulls the scoop and the coal out of the hole, and thereafter the first cable retracts the scoop into the hole to start another cycle of operation.
    Type: Grant
    Filed: August 10, 1976
    Date of Patent: February 21, 1978
    Inventor: James V. Joyce
  • Patent number: 4062361
    Abstract: An ostomy sealing disc adapted to fit around a stoma and forming a seal between the skin around the stoma and a drainage pouch, the sealing disc having an opening through which the digestive juices flow from the stoma into the drainage pouch and comprising a layer of a hydrocolloid and a layer of an elastomeric material, the two layers being firmly attached to each other.
    Type: Grant
    Filed: July 7, 1975
    Date of Patent: December 13, 1977
    Assignee: Coloplast International A/S
    Inventor: Ib Finn Poulsen
  • Patent number: 4048380
    Abstract: Cast coating compositions, processes of using them and cast coated products are described. The compositions comprise pigment and binder, and the binder includes a polymer which has Tg from 0.degree. to 45.degree. C, Tg-Tf from 5.degree. to 25.degree. C and which is in the form of a latex having an average particle size of less than 0.5 microns.
    Type: Grant
    Filed: January 26, 1976
    Date of Patent: September 13, 1977
    Assignee: Star Paper Limited
    Inventors: Rene C. Blakey, Robert G. Riddell, John Whittaker, John A. Wilson
  • Patent number: 4039616
    Abstract: Calcium sulphate produced by reacting crude phosphate with sulphuric acid is washed with aqueous solutions of condensed and complex aluminium fluorides of the general formulae MeAlF.sub.4, Me.sub.2 AlF.sub.5 and Me.sub.5 Al.sub.3 F.sub.14 as well as AlF.sub.3.nH.sub.2 O, in which Me represents an alkali metal, ammonium or thallium-I ion and n is a number between 1 and 9.
    Type: Grant
    Filed: June 2, 1975
    Date of Patent: August 2, 1977
    Assignee: Gebr. Knauf Westdeutsche Gipswerke
    Inventors: Kurt Scheel, Franz Wirsching
  • Patent number: 4036894
    Abstract: In producing successive batches of halogenated 2,2-bis-(4-hydroxyphenyl)-propane by reacting bisphenol A with elemental halogen in acetic acid wherein the mother liquor of a preceding batch is used as the reaction medium, the improvement comprising adding to the mother liquor an acetate such as sodium acetate to react with free hydrogen halide in the reaction medium and to increase the yield.
    Type: Grant
    Filed: March 16, 1976
    Date of Patent: July 19, 1977
    Assignee: Chemische Fabrik Kalk GmbH
    Inventor: Herbert Jenkner