Patents Assigned to TDT Ontario Inc.
  • Stable unbonded fiber-reinforced elastomeric seismic isolators for base isolation system
    Patent number: 8291651
    Abstract: An elastomeric seismic isolator bearing comprising a plurality of elastomeric layers reinforced with a plurality of fiber layers is disclosed, wherein said bearing is capable of exhibiting stable rollover when subjected to a lateral load in an unbonded application.
    Type: Grant
    Filed: June 6, 2008
    Date of Patent: October 23, 2012
    Assignee: TDT Ontario Inc.
    Inventors: Robert G. Drysdale, Michael Tait, Hamid Toopchinezhad