Patents by Inventor Joseph W. Johns, Jr.

Joseph W. Johns, Jr. 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).

  • Foam monitoring control system
    Patent number: 5108655
    Abstract: This invention relates to a system for monitoring and controlling foam in a liquid tank utilizing a foam level sensing device positioned at a downstream location from a defoaming agent delivery arrangement. The foam level sensing device comprises a float having a plurality of foam sensors positioned at various levels above the float and provides signals to a control device regarding the level of foam in the tank. The control device provides instructions to the defoaming agent delivery arrangement so to provide a proper amount of defoaming agent to the tank. The defoaming agent delivery arrangement may be operated continuously and includes a backup delivery device for times when the delivery means runs out of defoaming agent or at times when foam is generated at an exceptional rate.
    Type: Grant
    Filed: May 30, 1989
    Date of Patent: April 28, 1992
    Assignees: Electro-System, Incorporated, Ross Chem, Incorporated
    Inventors: Joseph W. Johns, Jr., Joseph G. Katzel
  • Defoamer containing liquid polybutene
    Patent number: 3959175
    Abstract: An organic defoamer comprising a mixture of polybutene plus at least one predominantly hydrophobic material having a relatively high melting point. A defoaming composition comprising a mixture of polybutene, at least one predominantly hydrophobic material having a relatively high melting point, and a normally hydrophilic material whose surface is rendered hydrophobic.
    Type: Grant
    Filed: September 11, 1974
    Date of Patent: May 25, 1976
    Inventors: Richard L. Smith, Jr., Joseph W. Johns, Jr.