Patents by Inventor William A. Manly

William A. Manly 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).

  • Noninvasively identifiable membrane roof system
    Patent number: 4937995
    Abstract: To indicate the origin of manufacture of the components of a roofing system, magnetically permeable particles are incorporated into the components. The particles are preferably loaded into the lap sealant and adhesive used to form field splices. Thus loaded, the lap sealant and/or adhesive has magnetically permeable properties or characteristics which are electromagnetically detectable through and beyond one layer of rubber sheeting. Detection of these particles provides an indication of origin of the material.
    Type: Grant
    Filed: June 16, 1988
    Date of Patent: July 3, 1990
    Assignee: Carlisle Corporation
    Inventors: Robert J. Deffeyes, William A. Manly
  • EMI-Suppression from transmission lines
    Patent number: 4371742
    Abstract: Absorptive shields for transmission lines, especially those tending to radiate electromagnetic wave lengths within a frequency range of from about 10.sup.6 to about 10.sup.10 hertz, especially 10.sup.7 to 10.sup.10 hertz. The shields are flexible materials filled with ferromagnetic, or ferrimagnetic, powders of selected particle size and distribution.
    Type: Grant
    Filed: July 19, 1979
    Date of Patent: February 1, 1983
    Assignee: Graham Magnetics, Inc.
    Inventor: William A. Manly
  • Polymodal magnetic recording member
    Patent number: 4237506
    Abstract: An improved magnetic recording member of the disc type, the article of the invention is polymodal wherein one mode is formed of a first population of magnetic particles which have a coercivity differing by at least 200 oersteds from the coercivity of particles in another mode. These latter particles are, preferably, metallic magnetic particles oriented in a vertical direction and are in a thin layer over said first population of magnetic particles. This combination overcomes existing limitations on (a) disc products, and (b) the preferred metallic particles heretofore known.
    Type: Grant
    Filed: April 3, 1978
    Date of Patent: December 2, 1980
    Assignee: Graham Magnetics Inc.
    Inventor: William A. Manly
  • Recording track eccentricity compensation method and means
    Patent number: 4087842
    Abstract: Playback method and apparatus compensate exactly for both tracking and speed errors due to any eccentricity in the information track on a rotating recording member during playback by moving the read head in a circular path having the same radius, angular velocity and phase as the circle of eccentricity of the track.
    Type: Grant
    Filed: November 5, 1976
    Date of Patent: May 2, 1978
    Assignee: Graham Magnetics Inc.
    Inventor: William A. Manly
  • Magnetic recording members
    Patent number: 4075672
    Abstract: An improved magnetic recording member of the disc type. The article of the invention is formed, preferably, of metallic magnetic particles oriented in a vertical direction. This combination overcomes existing limitations on (a) disc products, and (2) the preferred metallic particles heretofore known.
    Type: Grant
    Filed: February 9, 1976
    Date of Patent: February 21, 1978
    Assignee: Graham Magnetics Incorporated
    Inventor: William A. Manly