Patents by Inventor Frank W. Knapp

Frank W. 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).

  • Quick disconnect coupling apparatus
    Patent number: 4566489
    Abstract: A quick-disconnect hydraulic coupling apparatus for connecting fluid lines of a fluid handling system provides substantially unrestricted fluid flow through the coupler assembly. The coupler apparatus includes male and female coupler devices adapted to be connected together and each of which includes a manually operated ball valve which provides a fluid flow path through the coupling apparatus having a cross-sectional area at least as great as that of hydraulic lines which the couplers interconnect. The coupling apparatus provides positive linear locking which maintains the male and female coupling units in linear alignment preventing inadvertent disconnection of the coupler devices.
    Type: Grant
    Filed: March 6, 1984
    Date of Patent: January 28, 1986
    Inventors: Frank W. Knapp, Caroline M. Knapp
  • Method of forming a wire splice
    Patent number: 4513500
    Abstract: The method for producing a sleeve or ferrule for use in joining together the ends of strands of high tensile strength, single strand wire of any gauge from 12 to 18 gauge.
    Type: Grant
    Filed: November 14, 1983
    Date of Patent: April 30, 1985
    Inventors: Frank W. Knapp, Caroline M. Knapp