Patents by Inventor Paul C. Landreth

Paul C. Landreth 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: 8177205
    Abstract: A mechanical device for displacing jaws of a spring biased clamp includes a housing for receiving handles of the spring biased clamp. The housing has a platform moveable toward and away from a wall to move the handles of the clamp toward and away from one another, to move the jaws of the clamp away from and toward one another, respectively. A control member activates and deactivates a force applying member operationally connected to the platform, wherein activating the force applying member moves the platform toward the wall and deactivating the force applying member moves the platform away from the wall of the housing. The device is used to apply clamps to marginal edge portions of a stack of two one or more sheets to provide a clamped subassembly. The clamped subassembly in one embodiment is laminated to provide an aircraft transparency.
    Type: Grant
    Filed: June 3, 2008
    Date of Patent: May 15, 2012
    Assignee: PPG Industries Ohio, Inc
    Inventors: Andrew T Troller, William S. Hutchins, Paul C. Landreth
  • Publication number: 20090295052
    Abstract: A mechanical device for displacing jaws of a spring biased clamp includes a housing for receiving handles of the spring biased clamp. The housing has a platform moveable toward and away from a wall to move the handles of the clamp toward and away from one another, to move the jaws of the clamp away from and toward one another, respectively. A control member activates and deactivates a force applying member operationally connected to the platform, wherein activating the force applying member moves the platform toward the wall and deactivating the force applying member moves the platform away from the wall of the housing. The device is used to apply clamps to marginal edge portions of a stack of two one or more sheets to provide a clamped subassembly. The clamped subassembly in one embodiment is laminated to provide an aircraft transparency.
    Type: Application
    Filed: June 3, 2008
    Publication date: December 3, 2009
    Applicant: PPG Industries Ohio, Inc.
    Inventors: Andrew T. Troller, William S. Hutchins, Paul C. Landreth