Patents by Inventor Francis Lacasse

Francis Lacasse 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: 10305887
    Abstract: A computer implemented method and apparatus for authenticating a field tool by a field device comprising: receiving, on a field device, an authentication certificate; verifying the authentication certificate using a trust anchor certificate on the field device; securing communication between the field tool and the field device with a key generated by a key derivation method using exchanged certificates; receiving a field tool task authorization certificate; verifying the authorization certificate using a trust anchor certificate on the field device; receiving a task request to perform a task by the field tool; and determining whether the task is authorized based on the task authorization certificate; and performing the task on the field device when it is determined the task is authorized.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: May 28, 2019
    Assignee: Trilliant Networks Inc.
    Inventors: Frederick Enns, Michel Veillette, Francis Lacasse
  • Publication number: 20170180355
    Abstract: A computer implemented method and apparatus for authenticating a field tool by a field device comprising: receiving, on a field device, an authentication certificate; verifying the authentication certificate using a trust anchor certificate on the field device; securing communication between the field tool and the field device with a key generated by a key derivation method using exchanged certificates; receiving a field tool task authorization certificate; verifying the authorization certificate using a trust anchor certificate on the field device; receiving a task request to perform a task by the field tool; and determining whether the task is authorized based on the task authorization certificate; and performing the task on the field device when it is determined the task is authorized.
    Type: Application
    Filed: December 13, 2016
    Publication date: June 22, 2017
    Inventors: Frederick Enns, Michel Veillette, Francis Lacasse
  • Patent number: 6568149
    Abstract: A joining strip is provided by which sheet metal may be formed into a hollow tubular panel. The joining strip provides a seam between panel edges that acts as a thermal break between inner and outer faces of the panel. The joining strip may also carry a resilient tubular cushion which extends into the joint between the side ends of two panels that are connected by a hinge. This cushion contributes to providing an air seal within the joint between the two panels. Applications include roll-up garage doors and roll-away, articulated walls.
    Type: Grant
    Filed: February 16, 2001
    Date of Patent: May 27, 2003
    Inventor: Francis Lacasse
  • Publication number: 20020112444
    Abstract: A joining strip is provided by which sheet metal may be formed into a hollow tubular panel. The joining strip provides a seam between panel edges that acts as a thermal break between inner and outer faces of the panel. The joining strip may also carry a resilient tubular cushion which extends into the joint between the side ends of two panels that are connected by a hinge. This cushion contributes to providing an air seal within the joint between the two panels. Applications include roll-up garage doors and roll-away, articulated walls.
    Type: Application
    Filed: February 16, 2001
    Publication date: August 22, 2002
    Inventor: Francis Lacasse