Patents by Inventor Richard W. Knapp

Richard 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).

  • Rake for baseball and softball fields
    Patent number: 4704852
    Abstract: A rake for softball and baseball infields and baselines which smooths the surface after each game without leaving any tracks. The rake may be pulled by hand or by a lightweight tractor.
    Type: Grant
    Filed: October 22, 1985
    Date of Patent: November 10, 1987
    Inventor: Richard W. Knapp
  • Pressurized water reactor flow arrangement
    Patent number: 4557891
    Abstract: A pressurized water nuclear reactor of the type with vertical control rods passing through the core surrounded by control rod guide tubes. A major portion of the water flow is passed directly to the bottom of the core for upward flow therethrough. A minor portion pressurizes a volume at the top of the vessel and passes downwardly through the control rod guide tubes to join the major portion of flow at the lower end of the core.
    Type: Grant
    Filed: April 26, 1982
    Date of Patent: December 10, 1985
    Assignee: Combustion Engineering, Inc.
    Inventors: John F. Gibbons, Richard W. Knapp
  • Variable overlap control
    Patent number: 4386048
    Abstract: In a nuclear reactor having at least two control rod groups residing in the core for controlling the power level generated by the core, wherein one group is at a higher elevation in the core than the other, an improved method of controlling the core axial power distribution.
    Type: Grant
    Filed: November 24, 1980
    Date of Patent: May 31, 1983
    Assignee: Combustion Engineering, Inc.
    Inventors: Joseph R. Humphries, Richard W. Knapp