Patents by Inventor László István Lörincz

László István Lörincz 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).

  • Needle bar driving system for sewing machines
    Patent number: 9127387
    Abstract: Improved needle bar driving system for sewing machines, that comprises an armshaft rotating with a predetermined speed; a needle bar driving assembly driven by the armshaft and has a needle bar that performs a reciprocating guided linear movement along a substantially vertical axis; a counterweight driving assembly is driven by the armshaft; and a counterweight piston driven by the counterweight driving assembly, and the counterweight piston also performs a reciprocating linear guided movement along an axis parallel to the axis, wherein the movements of the counterweight driving assembly and of the counterweight piston are always opposite to the movement of the needle bar driving assembly and of the needle bar, wherein the combined torque of the counterweight piston and the counterweight driving assembly acting on the armshaft is substantially equal to the combined torque of the needle bar and needle bar driving assembly acting also on the armshaft, but the two torques have opposite direction, whereby the arm
    Type: Grant
    Filed: May 22, 2013
    Date of Patent: September 8, 2015
    Assignee: INTELLIQUILTER, LLC
    Inventors: Zoltán Kása, László István Lörincz, János Horváth
  • NEEDLE BAR DRIVING SYSTEM FOR SEWING MACHINES
    Publication number: 20140345508
    Abstract: Improved needle bar driving system for sewing machines, that comprises an armshaft rotating with a predetermined speed; a needle bar driving assembly driven by the armshaft and has a needle bar that performs a reciprocating guided linear movement along a substantially vertical axis; a counterweight driving assembly is driven by the armshaft; and a counterweight piston driven by the counterweight driving assembly, and the counterweight piston also performs a reciprocating linear guided movement along an axis parallel to the axis, wherein the movements of the counterweight driving assembly and of the counterweight piston are always opposite to the movement of the needle bar driving assembly and of the needle bar, wherein the combined torque of the counterweight piston and the counterweight driving assembly acting on the armshaft is substantially equal to the combined torque of the needle bar and needle bar driving assembly acting also on the armshaft, but the two torques have opposite direction, whereby the arm
    Type: Application
    Filed: May 22, 2013
    Publication date: November 27, 2014
    Applicant: INTELLIQUILTER, LLC
    Inventors: Zoltán Kása, László István Lörincz, János Horváth