Patents by Inventor Douglas Lacina

Douglas Lacina 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).

  • CYLINDER WITH AUTOMATIC HYDRAULIC FLUID CIRCULATION
    Publication number: 20220299048
    Abstract: The claimed invention is an end-of-stroke recirculation system for use with a hydraulic cylinder. Generally speaking, the fluid in a hydraulic cylinder remains trapped on one side of the piston and is unable to recirculate. The claimed invention provides a bypass that allows for hydraulic fluid to circulate through a cylinder when the hydraulic cylinder is at either end or both ends of its stroke.
    Type: Application
    Filed: March 18, 2022
    Publication date: September 22, 2022
    Inventors: Douglas Lacina, Joseph Logue, Fred Borak, Pete Frymark
  • Lock
    Patent number: D679168
    Type: Grant
    Filed: November 22, 2011
    Date of Patent: April 2, 2013
    Assignee: Master Lock Company LLC
    Inventors: Scott B. Stevens, Douglas Lacina, Ray Wojtak
  • Lock
    Patent number: D698225
    Type: Grant
    Filed: January 29, 2013
    Date of Patent: January 28, 2014
    Assignee: Master Lock Company LLC
    Inventors: Scott B. Stevens, Douglas Lacina, Ray Wojtak
  • Lock
    Patent number: D704532
    Type: Grant
    Filed: January 28, 2013
    Date of Patent: May 13, 2014
    Assignee: Master Lock Company LLC
    Inventors: Scott B. Stevens, Douglas Lacina, Ray Wojtak