Patents by Inventor Douglas S. Cairns

Douglas S. Cairns 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).

  • Publication number: 20230304195
    Abstract: A method and system for producing stretch-broken fiber material includes feeding a fiber material including a plurality of continuous filaments and a continuous carrier film into a stretch breaking apparatus such that the continuous carrier film contacts the fiber material, and breaking at least a portion of the plurality of continuous filaments of the fiber material using the stretch breaking apparatus while the continuous carrier film contacts the fiber material to produce a stretch broken fiber material contacting the continuous carrier film.
    Type: Application
    Filed: August 23, 2021
    Publication date: September 28, 2023
    Inventors: Eric J. BOOTH, Douglas S. CAIRNS
  • Patent number: 10655356
    Abstract: A pole reinforcement system and method for improving the stability of a pole with both an above-grade and below-grade installation. The pole reinforcement system generally includes a sleeve assembly which is secured around a pole via one or more retainers which may comprise brackets, securing bands, or other structures. One or more insertion attachments are utilized so that the sleeve assembly may be secured to the pole at a position below-grade. The sleeve assembly may comprise one or more sleeves which are secured around the pole. By utilizing the present invention to reinforce the pole both above- and below-grade, the stability of the pole may be greatly improved over prior reinforcement methods.
    Type: Grant
    Filed: September 25, 2017
    Date of Patent: May 19, 2020
    Assignee: PermaPole LLC
    Inventors: Bradley A. Odegard, William Riddle, Douglas S. Cairns, Robert P. Plagemann
  • Publication number: 20180010355
    Abstract: A pole reinforcement system and method for improving the stability of a pole with both an above-grade and below-grade installation. The pole reinforcement system generally includes a sleeve assembly which is secured around a pole via one or more retainers which may comprise brackets, securing bands, or other structures. One or more insertion attachments are utilized so that the sleeve assembly may be secured to the pole at a position below-grade. The sleeve assembly may comprise one or more sleeves which are secured around the pole. By utilizing the present invention to reinforce the pole both above- and below-grade, the stability of the pole may be greatly improved over prior reinforcement methods.
    Type: Application
    Filed: September 25, 2017
    Publication date: January 11, 2018
    Inventors: Bradley A. Odegard, William Riddle, Douglas S. Cairns, Robert P. Plagemann
  • Patent number: 9771734
    Abstract: A pole reinforcement system for improving the stability of a pole with both an above-grade and below-grade installation. The pole reinforcement system generally includes a sleeve assembly which is secured around a pole via one or more retainers which may comprise brackets, securing bands, or other structures. One or more insertion attachments are utilized so that the sleeve assembly may be secured to the pole at a position below-grade. The sleeve assembly may comprise one or more sleeves which are secured around the pole. By utilizing the present invention to reinforce the pole both above- and below-grade, the stability of the pole may be greatly improved over prior reinforcement methods.
    Type: Grant
    Filed: September 2, 2015
    Date of Patent: September 26, 2017
    Assignee: Permapole LLC
    Inventors: Bradley A. Odegard, William Riddle, Douglas S. Cairns, Robert P. Plagemann
  • Publication number: 20160060892
    Abstract: A pole reinforcement system for improving the stability of a pole with both an above-grade and below-grade installation. The pole reinforcement system generally includes a sleeve assembly which is secured around a pole via one or more retainers which may comprise brackets, securing bands, or other structures. One or more insertion attachments are utilized so that the sleeve assembly may be secured to the pole at a position below-grade. The sleeve assembly may comprise one or more sleeves which are secured around the pole. By utilizing the present invention to reinforce the pole both above- and below-grade, the stability of the pole may be greatly improved over prior reinforcement methods.
    Type: Application
    Filed: September 2, 2015
    Publication date: March 3, 2016
    Inventors: Bradley A. Odegard, William Riddle, Douglas S. Cairns, Robert P. Plagemann
  • Patent number: 5522904
    Abstract: A femoral implant for a hip prosthesis includes a shaft oriented in a longitudinal direction and a neck extending from said shaft at an acute angle .theta. to the longitudinal direction. The implant includes a plurality of layers of fibers in a matrix, wherein the fibers are substantially unidirectional in each respective layer. The implant is made from a stack of layers of the matrix so that the direction of fibers is unbalanced. At least 50% of the fibers are oriented in the .theta. direction and the remainder of said fibers are oriented in directions other than the .theta. angle.
    Type: Grant
    Filed: October 13, 1993
    Date of Patent: June 4, 1996
    Assignee: Hercules Incorporated
    Inventors: James M. Moran, Richard A. Salzstein, Isaac M. Daniel, Douglas S. Cairns, Daniel B. Smith