Patents by Inventor Ronald K. McDonald

Ronald K. McDonald 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).

  • Method and apparatus for gapping and reinforcing slide fastener stringers
    Patent number: 4324034
    Abstract: Protruding head portions of coupling elements are removed from a selected section of a slide stringer, and a reinforcing tape is applied to the selected section by means including a movable holder for clamping the stringer on opposite sides of the selected section. The holder is restricted to movement along track means for guiding and aligning the holder with two or more stations, such as a gapping station, a reinforcing tape applying station and a trimming station.
    Type: Grant
    Filed: December 27, 1979
    Date of Patent: April 13, 1982
    Assignee: Talon, Inc.
    Inventors: Grant E. Berry, Wayne A. Becker, Karl E. Bahr, George J. Scagnelli, Frank J. Molnar, Ronald K. McDonald, Harry F. Manning