Patents by Inventor Lawrence A. Kren

Lawrence A. Kren 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: 6039325
    Abstract: A resilient braided rope seal for use in high temperature applications includes a center core of fibers, a resilient canted spring member supporting the core and at least one layer of braided sheath fibers tightly packed together overlying the spring member. The seal provides both improved load bearing and resiliency. Permanent set and hysteresis are greatly reduced.
    Type: Grant
    Filed: April 9, 1998
    Date of Patent: March 21, 2000
    Assignee: The United States of America as represented by the Administrator of National Aeronautics and Space Administration
    Inventors: Bruce M. Steinetz, Lawrence A. Kren
  • Patent number: 5414906
    Abstract: A spring clip attaches to the temple bar of eyeglasses to engage a small fold of garment fabric or the fabric edge of a pocket for secure, temporary storage of the eyeglasses. By utilizing the forward-facing clamping jaws, those clamping jaws facing toward the eyeglass lenses, nearly coincident with the temple bar hinge, the moment arm between said jaws and said hinge is reduced substantially which prevents the eyeglasses from opening up when clipped on a garment outside of a pocket. By employing the rearward-facing clamping jaws, those clamping jaws facing toward the temple bar earpiece, the eyeglasses can be stored securely clipped in a pocket. To prevent snagging the wearer's hair, the spring clip has, as a feature of the best mode, fully enclosed actuating springs and no exposed sharp edges.
    Type: Grant
    Filed: December 6, 1993
    Date of Patent: May 16, 1995
    Inventor: Lawrence Kren