Patents Assigned to Dart Industries
  • Patent number: 4207997
    Abstract: A handle member and a complementary handle member are transversly affixed to respective free ends of a pair of opposed straps extending from an endless member which can embrace a container. The handle member includes an edge and a lip which are detachably engageable with a lip and an edge, respectively, carried by the complementary handle member to form a handle structure. The handle member and the complementary handle member are retained in engagement in response to resilient deformation of the straps.
    Type: Grant
    Filed: August 25, 1977
    Date of Patent: June 17, 1980
    Assignee: Dart Industries Inc.
    Inventor: Jack V. Croyle
  • Patent number: 4206845
    Abstract: A food container suited for use in carry out food service having a base and cover. Each container portion is of tapered construction to permit stacking upon itself for storage and each has stop members formed thereon to determine stack height. Catch structure is formed on the cover which interlocks with resilient lip structure formed around the upper periphery of the base to detachably lock the container and base in an assembled state. The container base forms a shallow hollow of sufficient depth to prevent spillage, but is sufficiently flat to permit use as a plate which can be eaten upon with knife and fork. The resilient lip structure defines, when interlocked with the cover, vents which provide air circulation in the closed container to prevent condensation therein. Formed on the top of the cover and the bottom of the base is interfitting structure operable to retain one assembled container stably stacked on another with food contained therein.
    Type: Grant
    Filed: November 27, 1978
    Date of Patent: June 10, 1980
    Assignee: Dart Industries Inc.
    Inventor: Hubert E. Christian
  • Patent number: 4205410
    Abstract: A bottle finish wiping mechanism adapted to automatically position a plurality of bottles and subsequently wipe the finish areas of such bottles. The mechanism includes a plurality of wiper elements which are simultaneously movable into and out of contact with the bottles, and which, upon engagement therewith move cleaning pad surfaces against the finish areas of the bottle. When the cleaning pad surfaces are in engagement with the bottle the wiper elements rotate to effect cleaning.
    Type: Grant
    Filed: August 18, 1978
    Date of Patent: June 3, 1980
    Assignee: Dart Industries, Inc.
    Inventors: Arthur D. Heller, Donald F. Hardy
  • Patent number: 4203373
    Abstract: A wall fixture or shelf unit including a rail or bracket having laterally positioned projections and a shelf unit having a slot construction which fits into the projections thereby locking it to the bracket.
    Type: Grant
    Filed: August 11, 1978
    Date of Patent: May 20, 1980
    Assignee: Dart Industries Inc.
    Inventor: Rino Conti
  • Patent number: 4197387
    Abstract: Phosphorus oxytrichloride modified titanium trichloride polymerization catalysts of improved efficiency and/or isotacticity are obtained when the modification reaction is carried out in the presence of methylene chloride.
    Type: Grant
    Filed: December 22, 1978
    Date of Patent: April 8, 1980
    Assignee: Dart Industries Inc.
    Inventors: John L. H. Allan, Birendra K. Patnaik
  • Patent number: 4191366
    Abstract: The base surface of a rigid plate rests upon the work support surface of a machine tool. An insert, having an aperture therethrough, is journalled within the plate. A pin is detachably affixed to a work piece and extended through the aperture. Access is provided through the edge of the plate for engaging the pin to the insert and for cammingly advancing and retracting the insert relative the base surface. In response to advancement of the insert, the work piece is drawn against the work bearing surface of the plate. Random aperture location to accommodate several randomly placed pins is provided by a plurality of rotatably journalled inserts, each having a slotted aperture.
    Type: Grant
    Filed: January 30, 1978
    Date of Patent: March 4, 1980
    Assignee: Dart Industries Inc.
    Inventor: Yehuda Rabin
  • Patent number: 4184026
    Abstract: An inexpensive yet reliable method for incorporating a minor fraction of a percent by weight of nucleating agent in a propylene polymer is provided in which the nucleating agent is dissolved at a concentration of less than 10% in a homogeneous, alcohol-based, carrier liquid having a normal boiling point of not over about 120.degree. C. The resultant solution is atomized into a full jet spray of fine droplets which is directed with full and even coverage onto a loose pulverulent bed of propylene polymer powder over a period of time and with sufficient agitation of said bed to expose essentially all segments of the bed to direct contact with said spray.
    Type: Grant
    Filed: December 18, 1978
    Date of Patent: January 15, 1980
    Assignee: Dart Industries Inc.
    Inventors: Frederick E. Carrock, Mahendra T. Thakker
  • Patent number: 4179040
    Abstract: A container having a slidable article-removing internal insert which consists of a tray and a projecting handle that is so constructed to be guided for unobstructable movement within the container receptacle. Moreover, the means for such guided movement is incorporated into the handle arrangement of the insert in a fashion that positively restrains the insert for virtually the whole extent of its travel in the receptacle.
    Type: Grant
    Filed: August 11, 1978
    Date of Patent: December 18, 1979
    Assignee: Dart Industries Inc.
    Inventors: Robert F. Bateman, Jack V. Croyle
  • Patent number: D253803
    Type: Grant
    Filed: March 16, 1978
    Date of Patent: January 1, 1980
    Assignee: Dart Industries Inc.
    Inventor: Robert H. C. M. Daenen
  • Patent number: D253930
    Type: Grant
    Filed: November 10, 1977
    Date of Patent: January 15, 1980
    Assignee: Dart Industries Inc.
    Inventors: R. C. Zinkgraf, David L. Painter
  • Patent number: D253935
    Type: Grant
    Filed: November 7, 1977
    Date of Patent: January 15, 1980
    Assignee: Dart Industries Inc.
    Inventor: Robert H. C. M. Daenen
  • Patent number: D253980
    Type: Grant
    Filed: August 4, 1977
    Date of Patent: January 22, 1980
    Assignee: Dart Industries Inc.
    Inventor: Theodore W. Schriever
  • Patent number: D253987
    Type: Grant
    Filed: June 6, 1975
    Date of Patent: January 22, 1980
    Assignee: Dart Industries Inc.
    Inventor: David L. Painter
  • Patent number: D254020
    Type: Grant
    Filed: May 1, 1978
    Date of Patent: January 22, 1980
    Assignee: Dart Industries Inc.
    Inventor: Donald L. Greenwood
  • Patent number: D254116
    Type: Grant
    Filed: January 20, 1978
    Date of Patent: February 5, 1980
    Assignee: Dart Industries, Inc.
    Inventor: Robert H. C. M. Daenen
  • Patent number: D254166
    Type: Grant
    Filed: July 27, 1977
    Date of Patent: February 12, 1980
    Assignee: Dart Industries Inc.
    Inventor: Hubert E. Christian
  • Patent number: D254170
    Type: Grant
    Filed: August 25, 1977
    Date of Patent: February 12, 1980
    Assignee: Dart Industries Inc.
    Inventors: Jack V. Croyle, Robert F. Bateman
  • Patent number: D255085
    Type: Grant
    Filed: December 22, 1977
    Date of Patent: May 27, 1980
    Assignee: Dart Industries Inc.
    Inventors: John H. Free, David L. Painter
  • Patent number: D255339
    Type: Grant
    Filed: November 26, 1976
    Date of Patent: June 10, 1980
    Assignee: Dart Industries Inc.
    Inventor: Hubert E. Christian
  • Patent number: D255410
    Type: Grant
    Filed: May 3, 1979
    Date of Patent: June 17, 1980
    Assignee: Dart Industries Inc.
    Inventors: Thomas G. Petruzzi, Harold P. Ashton, Rino Conti