Patents Represented by Attorney William W. McDowell
  • Patent number: 4497727
    Abstract: This invention relates to novel polymers of dipropargylamine and derivatives thereof, a process for preparing same and the electrically conductive polymers resulting from doping poly(dipropargylamine) and derivatives thereof.
    Type: Grant
    Filed: February 13, 1984
    Date of Patent: February 5, 1985
    Assignee: W. R. Grace & Co.
    Inventors: Yoshiyuki Okamoto, Edward F. Hwang
  • Patent number: 4429063
    Abstract: Anaerobically curable sealant and adhesive compositions comprising polymerizable acrylate esters or methacrylate esters and a redox system as accelerator are stabilized by the addition of sulfamide derivatives containing the group ##STR1## The stabilization may be further improved by using the sulfamides in combination with phenolic anti-oxidants, particularly sterically hindered phenols, without reducing the curing rate of the compositions.
    Type: Grant
    Filed: September 15, 1982
    Date of Patent: January 31, 1984
    Assignee: W. R. Grace & Co.
    Inventor: Karl Reich
  • Patent number: 4019782
    Abstract: An improved automobile wheel with wire spokes and a novel method for making a spoked wheel. A metal spoked automotive wheel for tubeless tires having an outer circular rim with drop center adapted for receiving a tire is attached to a tubular hub assembly having means for receiving wire spokes. Wire spokes extend radially outward from the hub with terminal threads adapted for mounting a felly with threaded spoke nipples. The improved wheel center includes a narrow concentric inner felly of solid cross-section with holes for receiving the spoke nipples and peripheral portions for engaging the tire rim drop center. The felly has spaced-apart radial nipple-receiving holes and is integrally joined to the drop center of the rim at the flange.
    Type: Grant
    Filed: May 2, 1975
    Date of Patent: April 26, 1977
    Assignee: W. R. Grace & Co.
    Inventor: Merlyn R. Reppert