Patents by Inventor Charles A. Knapp

Charles A. Knapp 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: 4534810
    Abstract: A smoke-producing composition which will produce a dense smoke in about 5 conds and continues to produce a visible cloud having a duration of about 10 minutes for military screening operations in the field. The composition has critical limits in proportions and particle size for effective and efficient use in the 81 mm mortar cartridge. The composition consists essentially of 75 to 90 parts red phosphorus of 10.+-.5.mu. in size, 10 to 20 parts sodium nitrate of 30.+-.15.mu., and 4 to 10 parts of an epoxy binder. All parts being by weight.
    Type: Grant
    Filed: January 30, 1984
    Date of Patent: August 13, 1985
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Charles A. Knapp
  • Patent number: 4438700
    Abstract: A pyrotechnic spotting charge for training projectiles contains 30-50% zinc owder, 10-30% aluminum powder, 10-30% potassium nitrate or sodium nitrate, and 10-30% potassium perchlorate. The composition (a) is fast reacting and produces a large volume of white smoke visible at a great distance before the projectile buries itself in the ground and (b) is of low brisance and does not cause fragmentation of the projectile.
    Type: Grant
    Filed: July 19, 1982
    Date of Patent: March 27, 1984
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Charles A. Knapp
  • Patent number: 4269262
    Abstract: A low stiffness elastomer mounting arrangement for a ceramic regenerator core comprising an elastomer cushion between a ceramic, circular regenerator core and a surrounding ring gear, portions of the elastomer being bonded to the interior surface of the ring gear and other portions of the elastomer being bonded to the outer periphery of the ceramic regenerator core, the location of the bonds between the elastomer and the ring gear being tangentially offset with respect to the location of the bonds between the elastomer and the regenerator core, adjacent bonds on the ring gear and on the periphery of the regenerator core being tangentially spaced one with respect to the other, the elastomer forming a load transmitting beam construction that is not bonded to either the ring gear or the core whereby driving forces are transmitted from the ring gear to the core while the elastomer compensates for differential expansion of the ceramic core and the ring gear thus avoiding radial stresses and compression loads on th
    Type: Grant
    Filed: March 5, 1979
    Date of Patent: May 26, 1981
    Assignee: Ford Motor Company
    Inventors: Charles A. Knapp, V. Durga N. Rao
  • Patent number: 4227568
    Abstract: A regenerator drive system for a ceramic circular regenerator core comprising a cylindrical matrix adapted to be mounted for rotation about its central axis, said ceramic core having axial gas flow passages adapted, when it is installed in an engine, to accommodate flow therethrough of high temperature combustion gases and relatively cool combustor intake gases, a metallic ring gear surrounding the periphery of said core and radially spaced therefrom, an elastomeric lug and groove drive means situated between said core and said ring gear for distributing tangential driving forces therebetween, said drive means comprising a first series of elastomeric drive lugs bonded to the inner periphery of said ring gear at tangentially spaced locations and a second series of elastomeric drive lugs bonded to the external surface of the periphery of said core at tangentially spaced locations and in registry with the spaces between the drive lugs on said ring gear, said drive lugs having sufficient clearance therebetween to
    Type: Grant
    Filed: March 5, 1979
    Date of Patent: October 14, 1980
    Assignee: Ford Motor Company
    Inventors: Charles A. Knapp, Gary L. Boyd
  • Patent number: 4015529
    Abstract: This invention involves the incorporation of a relatively small quantity of irconium or other pyrophoric material in the high explosive composition of a munition, which provides incendiary, terrain illumination, spotting, and enhanced antipersonnel properties to the munition with little or no diminution of its explosive and fragmentation power.
    Type: Grant
    Filed: January 16, 1976
    Date of Patent: April 5, 1977
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Charles A. Knapp
  • Patent number: 3959041
    Abstract: This invention involves the incorporation of a relatively small quantity of irconium or other pyrophoric material in the high explosive composition of a munition, which provides incendiary, terrain illumination, spotting, and enhanced antipersonnel properties to the munition with little or no diminution of its explosive and fragmentation power.
    Type: Grant
    Filed: June 4, 1975
    Date of Patent: May 25, 1976
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Charles A. Knapp