Patents Assigned to Roll Screens, Inc.
  • Paper/plastic composite sheet and method of manufacturing
    Patent number: 5443923
    Abstract: The invention provides a multilayer plastic sheet of self-rollable material comprising at least two layers of material joined to one another at states of different relative stretch and capable of alternating between a relaxed and a tensioned state and of inherently assuming a rolled-up configuration in said relaxed state as a result of the different states of stretch of the respective layers and to retain said inherent property of spontaneous rolling up even after prolonged exposure to sunlight and heat.
    Type: Grant
    Filed: October 14, 1992
    Date of Patent: August 22, 1995
    Assignee: Roll-Screens, Inc.
    Inventors: Josephe Laniado, Moshe Har-El
  • Processes for manufacturing multilayer plastic sheet
    Patent number: 5176774
    Abstract: The invention provides a multilayer plastic sheet of self-rollable maerial comprising at least two layers of material joined to one another at states of different relative stretch and capable of alternating between a relaxed and a tensioned state and of inherently assuming a rolled-up configuration in said relaxed state as a result of the different states of stretch of the respective layers and to retain said inherent property of spontaneous rolling up even after prolonged exposure to sunlight and heat.
    Type: Grant
    Filed: January 25, 1991
    Date of Patent: January 5, 1993
    Assignee: Roll Screens, Inc.
    Inventors: Josephe Laniado, Moshe Har-El