Patents by Inventor Israel Dobkin

Israel Dobkin 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).

  • Chair spring tension control
    Patent number: 7316453
    Abstract: A tilt mechanism for an office chair includes a spring tension control that incorporates a wedge arrangement including a moveable wedge component that is displaceable laterally by turning a control knob below the seat of the chair, to force fixed wedge components apart and increase the spring tension. Turning the knob in the opposite direction reduces spring tension.
    Type: Grant
    Filed: October 25, 2004
    Date of Patent: January 8, 2008
    Assignee: Ram Machines (1990) Ltd.
    Inventors: Israel Dobkin, Marian Cybulsky
  • Chair spring tension control
    Publication number: 20050104429
    Abstract: A tilt mechanism for an office chair includes a spring tension control that incorporates a wedge arrangement including a moveable wedge component that is displaceable laterally by turning a control knob below the seat of the chair, to force fixed wedge components apart and increase the spring tension. Turning the knob in the opposite direction reduces spring tension.
    Type: Application
    Filed: October 25, 2004
    Publication date: May 19, 2005
    Applicant: Ram Machine (1990) Ltd.
    Inventors: Israel Dobkin, Marian Cybulsky