Patents Represented by Attorney, Agent or Law Firm Michael S. Kerns, Esq.
  • Polymer/clay nanocomposite comprising a clay mixture and a process for making same
    Patent number: 6653388
    Abstract: This invention relates to a polymer-clay nanocomposite comprising (i) a melt-processible matrix polymer, and incorporated therein (ii) a mixture of at least two layered clay materials. The invention also relates to articles produced from a nanocomposite and a process for preparing a nanocomposite.
    Type: Grant
    Filed: December 1, 1999
    Date of Patent: November 25, 2003
    Assignee: University of South Carolina Research Foundation
    Inventors: Robert Boyd Barbee, John Walker Gilmer, James Christopher Matayabas, Jr., Tie Lan, Vasiliki Psihogios
  • Butterfly valve locking apparatus
    Patent number: 6598850
    Abstract: A locking device for a butterfly type valve is provided with an actuating shaft extending through a bore provided in a conduit in which the valve is located; the inner end of the shaft carries a locking arm that is movable upon rotation of the shaft between a locking and unlocking position relative to the valve.
    Type: Grant
    Filed: October 17, 2001
    Date of Patent: July 29, 2003
    Assignee: Henry Pratt Company
    Inventor: David W. Buchwald