Patents by Inventor James Derrigan

James Derrigan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8887463
    Abstract: A cover assembly for bridging an opening located in an expansion joint between two spaced-apart structural members. The cover assembly includes a coverplate having a rigid plate member that is engaged with a resilient elastomeric cover. The cover assembly is affixed to the underlying structural members by base members. The proper positioning of the cover assembly within the expansion joint gap is maintained through a positioning assembly that is engaged with the coverplate and base members.
    Type: Grant
    Filed: November 21, 2007
    Date of Patent: November 18, 2014
    Assignee: Construction Research & Technology GmbH
    Inventors: James Derrigan, Chris Wierzbowski
  • Patent number: 8454264
    Abstract: A cover plate system for a gap (15) between two structural members (10, 20) is provided. The system includes an elongated cover (30) that extends across the gap (15) from a first structural member (10) to a second, spaced-apart structural member (20). The cover plate system further includes damped spring anchors (40) for engaging the cover plate (30) to an underlying structural member (10) and dampers (50, 60) for absorbing energy imparted to the cover plate (30) by vehicular traffic. The cover plate system minimizes the strain energy that is absorbed by the cover plate (30), which results in less cover plate slapping and bouncing during operation.
    Type: Grant
    Filed: August 17, 2012
    Date of Patent: June 4, 2013
    Assignee: Construction Research & Technology GmbH
    Inventors: Paul Bradford, James Derrigan
  • Patent number: 8333532
    Abstract: An expansion joint sealing system may be used to provide a continuous and seamless waterproof membrane across a gap in an expansion joint. The expansion joint sealing system includes sealing members that are provided with a keyway for accepting and interlocking a coating membrane. Also disclosed are an expansion joint including spaced apart structural members and the sealing system and a method for sealing a gap between two spaced apart structural members.
    Type: Grant
    Filed: July 15, 2010
    Date of Patent: December 18, 2012
    Assignee: Construction Research & Technology GmbH
    Inventors: James Derrigan, Dan Wald, Monty Guest, Don Starke
  • Publication number: 20120304557
    Abstract: A cover plate system for a gap (15) between two structural members (10, 20) is provided. The system includes an elongated cover (30) that extends across the gap (15) from a first structural member (10) to a second, spaced-apart structural member (20). The cover plate system further includes damped spring anchors (40) for engaging the cover plate (30) to an underlying structural member (10) and dampers (50, 60) for absorbing energy imparted to the cover plate (30) by vehicular traffic. The cover plate system minimizes the strain energy that is absorbed by the cover plate (30), which results in less cover plate slapping and bouncing during operation.
    Type: Application
    Filed: August 17, 2012
    Publication date: December 6, 2012
    Inventors: Paul BRADFORD, James DERRIGAN
  • Patent number: 8267617
    Abstract: A cover plate system for a gap (15) between two structural members (10, 20) is provided. The system includes an elongated cover (30) that extends across the gap (15) from a first structural member (10) to a second, spaced-apart structural member (20). The cover plate system further includes damped spring anchors (40) for engaging the cover plate (30) to an underlying structural member (10) and dampers (50, 60) for absorbing energy imparted to the cover plate (30) by vehicular traffic. The cover plate system minimizes the strain energy that is absorbed by the cover plate (30), which results in less cover plate slapping and bouncing during operation.
    Type: Grant
    Filed: December 14, 2007
    Date of Patent: September 18, 2012
    Assignee: Construction Research & Technology GmbH
    Inventors: Paul Bradford, James Derrigan
  • Publication number: 20110135387
    Abstract: An expansion joint sealing system may be used to provide a continuous and seamless waterproof membrane across a gap in an expansion joint. The expansion joint sealing system includes sealing members that are provided with a keyway for accepting and interlocking a coating membrane. Also disclosed are an expansion joint including spaced apart structural members and the sealing system and a method for sealing a gap between two spaced apart structural members.
    Type: Application
    Filed: July 15, 2010
    Publication date: June 9, 2011
    Applicant: Construction Research & Technology GmbH
    Inventors: James DERRIGAN, Dan Wald, Monty Guest, Don Starke
  • Publication number: 20100263312
    Abstract: A cover plate system for a gap (15) between two structural members (10, 20) is provided. The system includes an elongated cover (30) that extends across the gap (15) from a first structural member (10) to a second, spaced-apart structural member (20). The cover plate system further includes damped spring anchors (40) for engaging the cover plate (30) to an underlying structural member (10) and dampers (50, 60) for absorbing energy imparted to the cover plate (30) by vehicular traffic. The cover plate system minimizes the strain energy that is absorbed by the cover plate (30), which results in less cover plate slapping and bouncing during operation.
    Type: Application
    Filed: December 14, 2007
    Publication date: October 21, 2010
    Inventors: Paul Bradford, James Derrigan
  • Patent number: 7682993
    Abstract: An insulated composite material for structural reinforcement applications is provided. The insulated composite material includes a fiber reinforced composite material and a cementitious insulating layer applied over the composite material. Also provided is a structural member reinforced with the insulated composite material and a method of reinforcing a structural member with the insulated composite material.
    Type: Grant
    Filed: April 18, 2006
    Date of Patent: March 23, 2010
    Assignee: Construction Research & Technology GmbH
    Inventors: James Derrigan, Frederick R. Goodwin, Richard Ewanko, Michael Urbas
  • Publication number: 20080127590
    Abstract: A cover assembly for bridging an opening located in an expansion joint between two spaced-apart structural members. The cover assembly includes a coverplate having a rigid plate member that is engaged with a resilient elastomeric cover. The cover assembly is affixed to the underlying structural members by base members. The proper positioning of the cover assembly within the expansion joint gap is maintained through a positioning assembly that is engaged with the coverplate and base members.
    Type: Application
    Filed: November 21, 2007
    Publication date: June 5, 2008
    Inventors: James Derrigan, Chris Wierzbowski
  • Publication number: 20060230985
    Abstract: An insulated composite material for structural reinforcement applications is provided. The insulated composite material includes a fiber reinforced composite material and a cementitious insulating layer applied over the composite material. Also provided is a structural member reinforced with the insulated composite material and a method of reinforcing a structural member with the insulated composite material.
    Type: Application
    Filed: April 18, 2006
    Publication date: October 19, 2006
    Inventors: James Derrigan, Frederick Goodwin, Richard Ewanko, Michael Urbas