Patents by Inventor Lennard V. Lastuck

Lennard V. Lastuck 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 seat tilt control
    Patent number: 4892354
    Abstract: A seat support mechanism for a tiltable chair having a rear tilt torque mechanism including interconnected torsion bars which are adjustable to vary the resilient restraining force which opposes rearward tilt of the seat when occupied, a detent mechanism which provides additional detent and stability to maintain the seat in its normal upright position and add to the resistance of the torque mechanism, and an adjustment mechanism for adjusting said detent mechanism for front tilt.
    Type: Grant
    Filed: June 30, 1989
    Date of Patent: January 9, 1990
    Assignee: Shepherd Products U.S., Inc.
    Inventors: Michael H. Estkowski, Don E. Minor, Lennard V. Lastuck
  • Caster with arcurate hood cover
    Patent number: D308815
    Type: Grant
    Filed: August 22, 1988
    Date of Patent: June 26, 1990
    Assignee: Shepherd Products U.S., Inc.
    Inventors: Jerome C. Caruso, Christopher G. Estkowski, Lennard V. Lastuck
  • Chair base
    Patent number: D321299
    Type: Grant
    Filed: August 22, 1988
    Date of Patent: November 5, 1991
    Assignee: Shepherd Products U.S., Inc.
    Inventors: Jerome C. Caruso, Christopher G. Estkowski, Lennard V. Lastuck