Patents Assigned to Dart Industries Inc.
  • Fiber-reinforced composite materials
    Patent number: 4388422
    Abstract: A composite plastic material having improved shielding against electromagnetic interference is provided by injection molding a molding compound comprising elongated granules obtained by incorporating into a thermoplastic resin matrix metallized glass fibers together with carbon fibers.
    Type: Grant
    Filed: April 16, 1979
    Date of Patent: June 14, 1983
    Assignee: Dart Industries Inc.
    Inventors: Steven R. Gerteisen, David R. Wetzel
  • Storage and serving dish for cheese
    Patent number: 4385554
    Abstract: A storage and serving dish particularly constructed to retain a foodstuff of a generally unstable consistency and more particularly camembert cheese. The dish includes a dam or holder for product which is articulated and adapted to engage the severed portions of a cheese block positioned on a base member of the dish. Such dam includes means to removably fix one portion thereof to the base while another portion is freely movable to alternative positions within the circumference of the base. In addition, the freely positionable dam portion is also fixedly positioned by engagement with the dish closure when such is placed thereon.
    Type: Grant
    Filed: March 27, 1981
    Date of Patent: May 31, 1983
    Assignee: Dart Industries Inc.
    Inventors: Robert H. C. M. Daenen, Pieter K. Jan De Coster
  • Method for making titanium trichloride catalysts
    Patent number: 4382018
    Abstract: A storage stable, improved catalyst is obtained when an aluminum-reduced titanium trichloride catalyst which has been modified by treatment with an electron donor is heated at a temperature and for a period of time sufficient to drive the reaction to completion. In some instances this will involve the removal of gas which has been generated during the modification. In the usual practice a temperature of about 90.degree. C. and a period of about 90 minutes will be employed.
    Type: Grant
    Filed: December 18, 1980
    Date of Patent: May 3, 1983
    Assignee: Dart Industries, Inc.
    Inventors: John L. H. Allan, Birendra K. Patnaik, Agapios Agapiou
  • Peroxygen compound-6-O-alkanoylisoascorbic acid redox catalyst system for suspension polymerization of vinyl chloride
    Patent number: 4382133
    Abstract: A process for the suspension polymerization of vinyl chloride, in the presence of a redox catalyst system consisting of a peroxyester or diacyl peroxide and an isoascorbic acid ester of a carboxylic acid.
    Type: Grant
    Filed: May 4, 1981
    Date of Patent: May 3, 1983
    Assignee: Dart Industries Inc.
    Inventor: Norman G. Gaylord
  • Dispensing devices
    Patent number: 4380307
    Abstract: A closure device for a container provided with at least three compartments open at the top of the container and angularly offset from one another around the container axis, including a cover mounted on top of the container, and presenting first and second dispensing openings, a cap covering the top of the container, enclosing the cover and provided with an outlet opening, and linkage connected between the cover and the cap for permitting the cap to rotate relative to the cover so that the outlet opening of the cap moves between the first and second dispensing openings and for causing the cap and cover to rotate as a unit when the cap outlet opening is aligned with one of the dispensing openings and the cap is rotating in the direction away from the other dispensing opening with respect to the angular path.
    Type: Grant
    Filed: August 4, 1980
    Date of Patent: April 19, 1983
    Assignee: Dart Industries Inc.
    Inventor: Scott H. Stillinger
  • Densification of particulate materials
    Patent number: 4375520
    Abstract: A procedure is provided for the production of clean, dustless particulate granules from dusty, dirty particles by treatment with a composition comprising a liquid polymeric substance, illustratively, epoxidized soybean oil, and a solid, low molecular weight polymer having a melting point in the range of about 95.degree. to 105.degree. C., illustratively, a polyethylene vinyl acetate copolymer in the proportions of from 1 part of solid polymer to 1 part of liquid polymeric substance to 2 parts of solid polymer to 1 part of liquid polymeric substance. In one modification of the procedure, the ingredients were charged to a Papenmeir mixer and the mixer was run at 1500 RPM until a temperature of 95.degree. C. was reached. The resulting product comprised clean, dustless uniform beads.
    Type: Grant
    Filed: April 10, 1981
    Date of Patent: March 1, 1983
    Assignee: Dart Industries Inc.
    Inventors: Thomas W. Pennie, Sunil S. Parikh, Charles Lowe
  • Baking appliance
    Patent number: D268159
    Type: Grant
    Filed: December 15, 1980
    Date of Patent: March 8, 1983
    Assignee: Dart Industries Inc.
    Inventor: Peter M. Fox
  • Planter unit
    Patent number: D268337
    Type: Grant
    Filed: April 21, 1978
    Date of Patent: March 22, 1983
    Assignee: Dart Industries Inc.
    Inventors: Abraham I. Tenzer, Jes S. Baru
  • Picture frame or the like
    Patent number: D268467
    Type: Grant
    Filed: February 3, 1981
    Date of Patent: April 5, 1983
    Assignee: Dart Industries Inc.
    Inventor: Robert H. C. M. Daenen
  • Canister or the like
    Patent number: D268470
    Type: Grant
    Filed: August 4, 1980
    Date of Patent: April 5, 1983
    Assignee: Dart Industries Inc.
    Inventor: Masao Kato
  • Casserole cooking appliance
    Patent number: D268471
    Type: Grant
    Filed: March 12, 1981
    Date of Patent: April 5, 1983
    Assignee: Dart Industries, Inc.
    Inventor: Dan E. Gremonprez
  • Bread storage container or the like
    Patent number: D268560
    Type: Grant
    Filed: September 18, 1980
    Date of Patent: April 12, 1983
    Assignee: Dart Industries, Inc.
    Inventors: Robert H. C. M. Daenen, Pieter K. J. De Coster
  • Corn holder or the like
    Patent number: D268723
    Type: Grant
    Filed: June 8, 1981
    Date of Patent: April 26, 1983
    Assignee: Dart Industries Inc.
    Inventor: Martin J. Wolff
  • Coffeemaker
    Patent number: D268888
    Type: Grant
    Filed: June 22, 1981
    Date of Patent: May 10, 1983
    Assignee: Dart Industries Inc.
    Inventor: Dan E. Gremonprez
  • Horticultural tool or the like
    Patent number: D269060
    Type: Grant
    Filed: September 5, 1980
    Date of Patent: May 24, 1983
    Assignee: Dart Industries Inc.
    Inventor: Joan K. Creamer
  • Serving dish
    Patent number: D269313
    Type: Grant
    Filed: June 2, 1977
    Date of Patent: June 14, 1983
    Assignee: Dart Industries Inc.
    Inventors: James B. Swett, Robert F. Bateman, Richard A. Boucher
  • Condiment shaker or the like
    Patent number: D269315
    Type: Grant
    Filed: April 24, 1981
    Date of Patent: June 14, 1983
    Assignee: Dart Industries Inc.
    Inventor: Rino Conti
  • Granual dispenser or the like
    Patent number: D269316
    Type: Grant
    Filed: April 24, 1981
    Date of Patent: June 14, 1983
    Assignee: Dart Industries Inc.
    Inventor: Rino Conti
  • Wok
    Patent number: D269319
    Type: Grant
    Filed: March 12, 1981
    Date of Patent: June 14, 1983
    Assignee: Dart Industries Inc.
    Inventor: Peter M. Fox
  • Skillet-oven
    Patent number: D269320
    Type: Grant
    Filed: July 6, 1981
    Date of Patent: June 14, 1983
    Assignee: Dart Industries Inc.
    Inventors: Dan E. Gremonprez, David L. Painter, William Cesaroni