Patents by Inventor Frederick J. Good, Jr.

Frederick J. Good, 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).

  • Method of flocculation with cationic terpolymer flocculants
    Patent number: 5019275
    Abstract: Water soluble terpolymers based on (1) an acrylamide or acrylamide derivative, (2) a cationic vinyl monomer and (3) a hydrophilic vinyl monomer of the formula CH.sub.2 C(R)C(O)O(CH.sub.2 (CH.sub.2).sub.m O).sub.n E where R and E are each hydrogen or alkyl, m is an integer from 1 to 3 and n is an integer from 1 to 25 are useful flocculants.
    Type: Grant
    Filed: August 15, 1990
    Date of Patent: May 28, 1991
    Assignee: Polypure, Inc.
    Inventors: Frederick J. Good, Jr., Ronald E. Highsmith
  • Process for dewatering of biological sludge
    Patent number: 4988442
    Abstract: The present invention provides an improved biological sludge dewatering process. The process comprises the steps of: (a) heating biological sludge to a temperature of about 90.degree. to about 150.degree. C. which corresponds to a pressure of about 0 to about 55 psig and retaining the biological sludge at that temperature for less than about 15 minutes; (b) centrifuging the heated biological sludge to isolate the solids of the heated biological sludge from the liquid of the heated biological sludge; (c) chemically conditioning the isolated solids; and (d) dewatering the conditioned solids to produce a high solids biological sludge. The present process is used for dewatering any biological sludge to produce a high solids cake. The resulting high solids cake may be used as landfill, incinerated, or used as fertilizer by spreading on land and plowing said fertilizer into the soil.
    Type: Grant
    Filed: November 7, 1988
    Date of Patent: January 29, 1991
    Assignee: Polypure, Inc.
    Inventors: Ronald E. Highsmith, Frederick J. Good, Jr., Francis S. Lupton, Kenneth P. Kehrer, Glenn E. Petrie
  • Terpolymer of oxyalkyene acrylates, acrylamides and quaternary monomers
    Patent number: 4981936
    Abstract: Water soluble terpolymers based on (1) an acrylamide or acrylamide derivative, (2) a cationic vinyl monomer and (3) a hydrophilic vinyl monomer of the formula CH.sub.2 C(R)C(O)O(CH.sub.2 (CH.sub.2).sub.m O).sub.n E where R and E are each hydrogen or alkyl, m is an integer from 1 to 3 and n is an integer from 1 to 25 are useful flocculants.
    Type: Grant
    Filed: April 14, 1989
    Date of Patent: January 1, 1991
    Assignee: Polypure, Inc.
    Inventors: Frederick J. Good, Jr., Ronald E. Highsmith