Patents by Inventor Marian Cybulski

Marian Cybulski 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: 9668582
    Abstract: According to embodiments described in the specification, a linear adjustment mechanism for a chair includes first and second structural members adapted to be connected to a chair seat and chair back respectively and coupled to one another for relative sliding movement along an axis. The mechanism further includes a rack on the first structural member extending in a direction of the axis and a pin member positioned in an opening of the second structural member for engaging with the rack. The pin member includes one or more bore openings. One or more spring members are carried by the second structural member for moving the pin member between respective limits of travel of the first and second structural members with respect to one another along the axis. The spring members are disposed through the bore opening for coupling the spring members relative to the pin member.
    Type: Grant
    Filed: September 10, 2015
    Date of Patent: June 6, 2017
    Assignee: Ram Machines (1990) Ltd.
    Inventor: Marian Cybulski
  • Publication number: 20160206104
    Abstract: According to embodiments described in the specification, a linear adjustment mechanism for a chair includes first and second structural members adapted to be connected to a chair seat and chair back respectively and coupled to one another for relative sliding movement along an axis. The mechanism further includes a rack on the first structural member extending in a direction of the axis and a pin member positioned in an opening of the second structural member for engaging with the rack. The pin member includes one or more bore openings. One or more spring members are carried by the second structural member for moving the pin member between respective limits of travel of the first and second structural members with respect to one another along the axis. The spring members are disposed through the bore opening for coupling the spring members relative to the pin member.
    Type: Application
    Filed: September 10, 2015
    Publication date: July 21, 2016
    Inventor: Marian CYBULSKI
  • 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
  • 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
  • Patent number: 6510612
    Abstract: A utility knife having a quick release feature, whereby a resilient blade engaging member biased to the locked position engages an opening in the blade, and when the blade engaging member is pushed against the end of a guide slot it automatically releases from the blade allowing the blade to be removed from the knife handle. The knife handle structure reinforces the throat of the knife, by providing a double channel configuration comprising an outer channel with a blade retaining surface and an inner channel inverted relative to the outer channel and providing a blade supporting surface. The outer channel is tapered toward the inner channel about the throat of the knife, to reinforce the throat and prevent deformation under the stresses imparted by the knife blade when in use.
    Type: Grant
    Filed: July 11, 2001
    Date of Patent: January 28, 2003
    Inventor: Marian Cybulski
  • Publication number: 20030009887
    Abstract: A utility knife having a quick release feature, whereby a resilient blade engaging member biased to the locked position engages an opening in the blade, and when the blade engaging member is pushed against the end of a guide slot it automatically releases from the blade allowing the blade to be removed from the knife handle. The knife handle structure reinforces the throat of the knife, by providing a double channel configuration comprising an outer channel with a blade retaining surface and an inner channel inverted relative to the outer channel and providing a blade supporting surface. The outer channel is tapered toward the inner channel about the throat of the knife, to reinforce the throat and prevent deformation under the stresses imparted by the knife blade when in use.
    Type: Application
    Filed: July 11, 2001
    Publication date: January 16, 2003
    Inventor: Marian Cybulski