Patents by Inventor Donald L. McGady

Donald L. McGady 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: 5077943
    Abstract: Corner flashing for the roof line at intersections of the roof surfaces with upstanding walls or projections such as dormers, chimneys, and the like is provided to fit, without cutting, the roof line of widely varying inclinations and embrace the corners of the projections above the roof line without opening a possible leakage path. The flashing is preferably a molded one-piece plastics material member with a base for seating on the roof deck and underlying the roofing material to radiate from the corner of an upstanding projection above the roof line and having integral upstanding substantially right angle sides for abutting the area on both sides of the projection and with the corner of the sides being foldable to form a tuck overlying one of the sides to pull both sides into tight abutting engagement with the projection. The tuck may overlap either side of the upstanding side and be secured to the upstanding projection by a nail or the like.
    Type: Grant
    Filed: August 7, 1991
    Date of Patent: January 7, 1992
    Inventor: Donald L. McGady
  • Patent number: 4067691
    Abstract: A sterilizing system for sterilizing large quantities of articles used in a hospital environment incorporates sterilizing apparatus interconnected between a contaminated area and a clean area, with a double partition separating a neutral zone, in which the sterilizing apparatus is located, from the contaminated area and from the clean area. The sterilizing apparatus incorporates a vessel adapted to be heated and pressurized, and electrically operated controls spaced above the vessel for controlling the operation of the apparatus during a sterilizing process, such controls being accessible for maintenance and repair activities within the neutral zone. An automatic controller for the sterilizing system includes sensing devices for monitoring the progress of the sterilization process on a step by step basis, and furnishing signals to the various electrically operated controls to initiate each step of the sterilizing process when the preceding step is completed.
    Type: Grant
    Filed: April 16, 1976
    Date of Patent: January 10, 1978
    Assignee: Mercy Hospital and Medical Center
    Inventors: Donald L. McGady, Thomas M. Hooper, Joseph E. Wilczynski