Patents Assigned to Ralph Wilson Plastics Company
  • Patent number: 5469685
    Abstract: A watertight, durable, and attractive edge construction for furniture is provided that is especially designed for ease of installation while maintaining the aesthetic appeal of the furniture edge. The edge construction hereof provides for the snapable insertion of a side molding into the exposed sidewall of a furniture panel, and, through the provisions of designed-in recesses, allows for the expansion of the furniture and side molding material and for the dispersion of the bonding medium used to bond the panel and molding together. The invention is particularly adaptable for use in the construction of countertops or other furniture made from sheets of synthetic resin laminate bonded to support decking.
    Type: Grant
    Filed: May 26, 1992
    Date of Patent: November 28, 1995
    Assignee: Ralph Wilson Plastics Company
    Inventor: Thomas J. Nelson
  • Patent number: 5457152
    Abstract: Filled crystalline thermoplastic resin chips are incorporated into a filled synthetic resin matrix for producing varicolored mineral appearing articles. Wollastonite filled polyphthalamide resin chips increase the surface hardness and decrease the ASTM E 84 Smoke Index of neopentyl glycol/isophthalic polyester molded articles. Crystalline thermoplastics can be extruded in shapes for providing varishaped chips.
    Type: Grant
    Filed: February 19, 1993
    Date of Patent: October 10, 1995
    Assignee: Ralph Wilson Plastics Company
    Inventors: Peter C. Gaa, Beth A. Rabroker
  • Patent number: 5244941
    Abstract: A molding composition which, when cured, is useful as an artificial stone composition, is disclosed. The composition comprises between about 10 to about 25 parts by weight of a non-volatile polyester backbone resin; between about 10 to about 25 parts by weight of an ethylenically unsaturated monomer and between about 50 to about 80 parts by weight of a filler selected from the group consisting of alumina trihydrate, borax, hydrated magnesium calcium carbonate and calcium sulfate dihydrate. When an artificial stone composition simulating granite is desired, the molding composition further comprises chips of a previously cured thermosetting resinous composition. The compositions are produced in a vented but essentially closed mold through which heating and cooling media can freely flow.
    Type: Grant
    Filed: November 2, 1989
    Date of Patent: September 14, 1993
    Assignee: Ralph Wilson Plastics Company
    Inventors: Gerald J. Bruckbauer, Charles M. Belson, Joseph A. Ingriola, Anthony J. Woytek