Patents by Inventor Richard J. Pilny

Richard J. Pilny 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).

  • Hectorite based paint spray booth detackifying slurries and methods of use thereof
    Patent number: 4564464
    Abstract: Paint spray booth detackifying and clarification compositions and methods are disclosed. The compositions are pumpable, hectorite clay containing slurries. In addition to hectorite, which has been proven as a most effective detackifying agent, the slurries include thinning agents such as water soluble aliphatic and/or alicyclic amines. Water conditioning agents, such as water soluble polyphosphates are also made part of the slurry formulation.
    Type: Grant
    Filed: December 27, 1984
    Date of Patent: January 14, 1986
    Assignee: Betz Laboratories, Inc.
    Inventors: William L. Harpel, Deborah L. Purnell, Richard J. Pilny
  • Paint spray booth detackification composition and method
    Patent number: 4504395
    Abstract: Paint spray booth detackification compositions and methods are disclosed. The compositions comprise a hectorite clay, an anti-foaming agent and optionally, an aluminum oxide material and a montmorillonite clay. These compositions are introduced into a paint spray booth water wash system so as to detackify oversprayed paint.
    Type: Grant
    Filed: February 7, 1984
    Date of Patent: March 12, 1985
    Assignee: Betz Laboratories, Inc.
    Inventors: William L. Harpel, Richard J. Pilny
  • Rendering porous structures impermeable by treatment with pH insensitive gelable compositions of amide polymers and composition
    Patent number: 4366194
    Abstract: Aqueous solutions of amide polymers, such as polyacrylamide when treated with small amounts of a water-soluble polyaldehyde and a hypohalite salt at an alkaline pH, react to form firm gels within a short time at ambient temperature. Such gels, which are stable under alkaline as well as acidic conditions, are usefully employed to plug porous subterranean formations, for grouting of leaking soil pipes or wells, and to otherwise render porous structures impermeable to the passage of liquids such as water.
    Type: Grant
    Filed: April 21, 1980
    Date of Patent: December 28, 1982
    Assignee: The Dow Chemical Co.
    Inventors: Richard J. Pilny, Thomas W. Regulski
  • Rendering porous structures impermeable by treatment with gellable amine polymers
    Patent number: 4291069
    Abstract: Aqueous solutions of amide polymers such as polyacrylamide when treated with small amounts of a water-soluble polyaldehyde at an alkaline pH react to form film gels within a short time at ambient temperature. Such gels are usefully employed to plug porous subterranean formations, for grouting of leaking soil pipes or wells, and to otherwise render porous structures impermeable to the passage of liquids such as water.
    Type: Grant
    Filed: July 20, 1977
    Date of Patent: September 22, 1981
    Assignee: The Dow Chemical Company
    Inventor: Richard J. Pilny
  • Rendering porous structures impermeable by treatment with pH insensitive gelable compositions of amide polymers
    Patent number: 4199625
    Abstract: Aqueous solutions of amide polymers, such as polyacrylamide when treated with small amounts of a water-soluble polyaldehyde and a hypohalite salt at an alkaline pH, react to form firm gels within a short time at ambient temperature. Such gels, which are stable under alkaline as well as acidic conditions, are usefully employed to plug porous subterranean formations, for grouting of leaking soil pipes or wells, and to otherwise render porous structures impermeable to the passage of liquids such as water.
    Type: Grant
    Filed: June 2, 1978
    Date of Patent: April 22, 1980
    Assignee: The Dow Chemical Company
    Inventors: Richard J. Pilny, Thomas W. Regulski