Patents by Inventor Leo E. McGann

Leo E. McGann 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).

  • Metal reinforced sealing washer
    Patent number: 4865335
    Abstract: A sealing washer providing watertight connection as between electrical conduit parts and including a reinforcing element molded substantially completely within a body of flexible material except for spaced projections extending to a selected surface of the flexible material and serving to locate the reinforcing element accurately within the body of flexible material during the molding process.
    Type: Grant
    Filed: August 4, 1988
    Date of Patent: September 12, 1989
    Assignee: J D L Components Corporation
    Inventor: Leo E. McGann
  • Sewing machine bed extension
    Patent number: 4565142
    Abstract: A one-piece sewing machine bed extension including portions which deform as the extension is placed on a sewing machine and generate internal stresses coacting with interlocks between the bed extension and sewing machine so arranged as to firmly secure the bed extension in place in a manner which is augmented by forces applied to the bed extension incident to normal operation and handling of the sewing machine.
    Type: Grant
    Filed: June 10, 1985
    Date of Patent: January 21, 1986
    Assignee: The Singer Company
    Inventor: Leo E. McGann
  • Sewing machine frame comprising oriented reinforced fibers
    Patent number: 4556594
    Abstract: A sewing machine bed having main and open channel sections is molded of glass reinforced thermosetting plastic composition which is injected into the mold through a side gate located opposite the juncture of the main and channel sections providing advantageous fiber orientation resulting in dimensional stability and freedom from warpage.
    Type: Grant
    Filed: September 18, 1984
    Date of Patent: December 3, 1985
    Assignee: The Singer Company
    Inventors: Robert Sedlatschek, Leo E. McGann
  • Method of molding a sewing machine frame of fiber reinforced composition
    Patent number: 4493808
    Abstract: A sewing machine bed having main and open channel sections is molded of glass reinforced thermosetting plastic composition which is injected into the mold through a side gate located opposite the juncture of the main and channel sections providing advantageous fiber orientation resulting in dimensional stability and freedom from warpage.
    Type: Grant
    Filed: June 4, 1982
    Date of Patent: January 15, 1985
    Assignee: The Singer Company
    Inventors: Robert Sedlatschek, Leo E. McGann
  • Reinforcing for molded sewing machine frame
    Patent number: 4452159
    Abstract: A sewing machine bed which, because an open channel is required to accommodate a preassembled operating mechanism module, is reinforced to minimize objectionable deflection by reinforcing ribs formed on a cover plate and rigidly connected to reinforcing bosses on the sewing machine bed when the cover plate is secured thereon.
    Type: Grant
    Filed: March 7, 1983
    Date of Patent: June 5, 1984
    Assignee: The Singer Company
    Inventors: Leo E. McGann, Kenneth D. Adams