Patents by Inventor Mark Thomas Corcoran

Mark Thomas Corcoran 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).

  • Polygon rotor attachment device
    Patent number: 8052397
    Abstract: A rotor and shaft assembly for turbomachinery has a polygon shaped drive collar interposed between corresponding polygonal mating surfaces of a drive shaft and a rotor hub. The mating surfaces of the polygon collar, the drive shaft and the rotor hub may be sized both axially and radially for required torque transmission without the need for hub inserts or oversized shafts. The polygon drive collar is manufacturable using standard machine tools such as lathes and end mills that remove metal in a tool path following not more than two axes of simultaneous movement. A shaft end assembly secures the rotor and drive collar to the shaft.
    Type: Grant
    Filed: September 19, 2008
    Date of Patent: November 8, 2011
    Assignee: Lawrence Pumps Inc.
    Inventor: Mark Thomas Corcoran
  • POLYGON ROTOR ATTACHMENT DEVICE
    Publication number: 20090081044
    Abstract: A rotor and shaft assembly for turbomachinery has a polygon shaped drive collar interposed between corresponding polygonal mating surfaces of a drive shaft and a rotor hub. The mating surfaces of the polygon collar, the drive shaft and the rotor hub may be sized both axially and radially for required torque transmission without the need for hub inserts or oversized shafts. The polygon drive collar is manufacturable using standard machine tools such as lathes and end mills that remove metal in a tool path following not more than two axes of simultaneous movement. A shaft end assembly secures the rotor and drive collar to the shaft.
    Type: Application
    Filed: September 19, 2008
    Publication date: March 26, 2009
    Applicant: LAWRENCE PUMPS, INC.
    Inventor: Mark Thomas Corcoran