Patents by Inventor Sander G. Dukas

Sander G. Dukas 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).

  • Gas flow regulator valve
    Patent number: 5687949
    Abstract: An improved fluid control valve assembly employing a needle valve integrally formed on a non-rotating valve stem includes a metering orifice for engaging and forming a fluid seal with the valve needle, and a generally radially extending end face on the valve stem for engaging an opposing wall surface acting to positively stop the valve stem upon fully closing the valve and forming a seal between the metering orifice and valve needle to thereby avoid excessive loads and wear between the metering orifice and valve needle.
    Type: Grant
    Filed: April 26, 1996
    Date of Patent: November 18, 1997
    Assignee: Controls Corporation of America
    Inventors: Sander G. Dukas, Kevin S. Bailey, Robert N. Cooper, Michael D. Heck
  • Adjustable expansion band for wristwatch
    Patent number: 4104872
    Abstract: An adjustable expansion band for a wristwatch of the type having two rows of overlapping links, having clips connecting alternating links between rows, and containing spring members within the links. The construction utilizes U-shaped clip members having asymmetrical legs and selectively engaging the springs which are held in slideable spring retainers inside the links. Adjacent expansion band sections can be disengaged by sliding the spring retainers to the unlocked positions.
    Type: Grant
    Filed: May 12, 1977
    Date of Patent: August 8, 1978
    Assignee: Timex Corporation
    Inventor: Sander G. Dukas