Patents by Inventor Donald Cameron

Donald Cameron 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).

  • Patent number: 10160830
    Abstract: An alkylene oxide mixture containing greater than 50% by weight ethylene oxide is continuously polymerized in the presence of a double metal cyanide polymerization catalyst and certain magnesium, Group 3-Group 15 metal or lanthanide series metal compounds. The presence of the magnesium, Group 3-Group 15 metal or lanthanide series metal compound permits the polymerization to be performed continuously without premature deactivation of the double metal cyanide catalyst.
    Type: Grant
    Filed: June 15, 2016
    Date of Patent: December 25, 2018
    Assignee: Dow Global Technologies LLC
    Inventors: David A. Babb, Jean-Paul Masy, Mattias Schaefer, William A. Koonce, Donald Cameron
  • Publication number: 20180162995
    Abstract: An alkylene oxide mixture containing greater than 50% by weight ethylene oxide is continuously polymerized in the presence of a double metal cyanide polymerization catalyst and certain magnesium, Group 3-Group 15 metal or lanthanide series metal compounds. The presence of the magnesium, Group 3-Group 15 metal or lanthanide series metal compound permits the polymerization to be performed continuously without premature deactivation of the double metal cyanide catalyst.
    Type: Application
    Filed: June 15, 2016
    Publication date: June 14, 2018
    Applicant: Dow Global Technologies LLC
    Inventors: David A. Babb, Jean-Paul Masy, Mattias Schaefer, William A. Koonce, Donald Cameron
  • Publication number: 20060201813
    Abstract: A method and apparatus for analyzing plating solutions. The apparatus generally includes a plating cell, a reference electrolyte input, one or more external additive pumps, and a process controller. In one embodiment, the plating cell includes a cavity therein having a larger volumetric portion adjacent a smaller volumetric portion adapted to hold one or more solutions therein. The plating cell also includes a base disposed adjacent the bottom of the plating cell and adapted to receive and mix one or more test solutions as part of the plating solution analysis. In one configuration, the base includes electrical ports adapted to connect stimulation signals to a working electrode, counter electrode, and reference electrode disposed within the cell. The base also includes a thermal sensor in thermal contact with test solutions contained within the vessel.
    Type: Application
    Filed: January 17, 2006
    Publication date: September 14, 2006
    Inventors: Todd Balisky, Donald Cameron, Zhi-Wen Sun
  • Publication number: 20050077182
    Abstract: Embodiments of the invention generally provide an electrochemical processing system configured to provide selected amounts of electrolyte composition components for single plating process. The selected amounts of components to be added to an electrolyte composition may be achieved by a volume measurement device using an ultrasonic sensor to measure volume of a vessel.
    Type: Application
    Filed: October 10, 2003
    Publication date: April 14, 2005
    Inventors: Todd Balisky, Donald Cameron, Yevgeniy Rabinovich
  • Patent number: 5295971
    Abstract: An impact releasable pole mounted syringe is described which includes a pole member having a gripping end and a syringe attachment end. The syringe attachment end has a receptacle with an opening adapted to telescopically receive a syringe. The pole member has a flexible finger protruding past the syringe attachment end and biased radially away from the pole member. The finger has an engagement member positioned at a remote end. A syringe is provided having a plunger end and a needle end. The plunger end is adapted for telescopic insertion into the receptacle at the syringe attachment end of the pole member. The syringe has an annular collar serving as a stop to limit the telescopic insertion of the syringe into the receptacle. The syringe has an engagement channel adapted to receive the engagement member.
    Type: Grant
    Filed: August 10, 1993
    Date of Patent: March 22, 1994
    Inventor: Donald Cameron