Patents Assigned to Rubb, Inc.
  • Tension membrane structure wrinkle elimination
    Patent number: 5333425
    Abstract: A construction system comprising a method and an article employed in said method which is used to engage the edge of adjacent membranes along the top of a beam constituting an arch in a tension membrane structure and pull the membranes toward each other by tightening alternate bolts attached to the beam and the edge of the membrane.
    Type: Grant
    Filed: January 7, 1993
    Date of Patent: August 2, 1994
    Assignee: Rubb, Inc.
    Inventors: David C. Nickerson, Gregory Parker