Patents by Inventor Raymond Zagars

Raymond Zagars 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).

  • Pump controller for precision pumping apparatus
    Patent number: 7476087
    Abstract: A pump controller and pump controlling method for dispensing a precise amount of low viscosity fluid are provided in which the problems of double dispenses and stuttered dispenses are avoided. In particular, the timing of the valves and motors in the pumping apparatus are adjusted to avoid these problems.
    Type: Grant
    Filed: February 4, 2005
    Date of Patent: January 13, 2009
    Assignee: Entegris, Inc.
    Inventors: Raymond A. Zagars, Robert F. McLoughlin
  • System and method for correcting for pressure variations using a motor
    Publication number: 20070104586
    Abstract: Systems and methods for compensating for pressure increase which may occur in various enclosed spaces of a pumping apparatus are disclosed. Embodiments of the present invention may compensate for pressure increases in chambers of a pumping apparatus by moving a pumping means of the pumping apparatus to adjust the volume of the chamber to compensate for a pressure increase in the chamber. More specifically, in one embodiment, to account for unwanted pressure increases to the fluid in a dispense chamber the dispense motor may be reversed to back out piston to compensate for any pressure increase in the dispense chamber.
    Type: Application
    Filed: November 20, 2006
    Publication date: May 10, 2007
    Inventors: James Cedrone, George Gonnella, Raymond Zagars, Robert McLoughlin
  • Pump controller for precision pumping apparatus
    Patent number: 7029238
    Abstract: A pump controller and pump controlling method for dispensing a precise amount of low viscosity fluid are provided in which the problems of double dispenses and stuttered dispenses are avoided. In particular, the timing of the valves and motors in the pumping apparatus are adjusted to avoid these problems.
    Type: Grant
    Filed: November 23, 1999
    Date of Patent: April 18, 2006
    Assignee: Mykrolis Corporation
    Inventors: Raymond A. Zagars, Robert F. McLoughlin
  • Pump controller for precision pumping apparatus
    Publication number: 20050184087
    Abstract: A pump controller and pump controlling method for dispensing a precise amount of low viscosity fluid are provided in which the problems of double dispenses and stuttered dispenses are avoided. In particular, the timing of the valves and motors in the pumping apparatus are adjusted to avoid these problems.
    Type: Application
    Filed: February 4, 2005
    Publication date: August 25, 2005
    Inventors: Raymond Zagars, Robert McLoughlin