Patents by Inventor Paul H. Schuerer

Paul H. Schuerer 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).

  • Cryogenic insulation strength and bond tester
    Patent number: 4548083
    Abstract: A method and apparatus for testing the tensile strength and bonding strength of sprayed-on foam insulation (12) attached to metal cryogenic fuel tanks (14). A circular cutter is used to cut the insulation (12) down to the surface of the metal tank to form plugs of the insulation (12) for testing "in situ" on the tank (14). The apparatus comprises an electro-mechanical pulling device (32) powered by a belt battery pack (34). The pulling device (32) comprises a motor (60) driving a mechanical pulling structure comprising a horizontal shaft (64) connected to two bell cranks (68) which are connected to a central member (74). When the lower end of member (74) is attached to fitting (20), which in turn is bonded to plug (10) (see FIG. 2), a pulling force is exerted on plug (10) sufficient to rupture it. The force necessary to rupture the plug (10) or pull it loose is displayed as a digital read-out (51) on screen (50).
    Type: Grant
    Filed: November 3, 1983
    Date of Patent: October 22, 1985
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: Paul H. Schuerer, James H. Ehl, Willibald P. Prasthofer
  • Sprayable low density ablator and application process
    Patent number: 4077921
    Abstract: A sprayable, low density ablative composition consisting essentially of:A. 100 parts by weight of a mixture of 25-65% by weight of phenolic microballoons,0-20% by weight of glass microballoons,4-10% by weight of glass fibers,25-45% by weight of an epoxy-modified polyurethane resin,2-4% by weight of a bentonite dispersing aid and1-2% by weight of an alcohol activator for the bentonite;B. 1-10 parts by weight of an aromatic amine curing agent; andC. 200-400 parts by weight of a solvent.
    Type: Grant
    Filed: January 19, 1977
    Date of Patent: March 7, 1978
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: Max H. Sharpe, William E. Hill, William G. Simpson, James M. Carter, Edwin L. Brown, Harry M. King, Paul H. Schuerer, David D. Webb