Patents by Inventor Jonan M. Fulenchek

Jonan M. Fulenchek 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).

  • Methods of attaching rolling cutters in fixed cutter bits using sleeve, compression spring, and/or pin(s)/ball(s)
    Patent number: 9187962
    Abstract: A cutting element has a sleeve with a first inner diameter and a second inner diameter, where the second inner diameter is larger than the first inner diameter and located at a lower axial position than the first inner diameter. A rotatable cutting element having an axis of rotation extending therethrough is at least partially disposed within the sleeve. The rotatable cutting element has a cutting face and a body extending axially downward from the cutting face, at least one hole extending from an outer surface of the body toward the axis of rotation, and a locking device disposed in each hole. The locking device protrudes from the hole to contact the second inner diameter of the sleeve, thereby retaining the rotatable cutting element within the sleeve.
    Type: Grant
    Filed: April 26, 2012
    Date of Patent: November 17, 2015
    Assignee: Smith International, Inc.
    Inventors: Yuri Burhan, Jiaqing Yu, Jonan M. Fulenchek, Youhe Zhang, Yuelin Shen
  • METHODS OF ATTACHING ROLLING CUTTERS IN FIXED CUTTER BITS USING SLEEVE, COMPRESSION SPRING, AND/OR PIN(S)/BALL(S)
    Publication number: 20120273281
    Abstract: A cutting element is disclosed that has a sleeve with a first inner diameter and a second inner diameter, wherein the second inner diameter is larger than the first inner diameter and located at a lower axial position than the first inner diameter, a rotatable cutting element having an axis of rotation extending therethrough, the rotatable cutting element at least partially disposed within the sleeve, wherein the rotatable cutting element has a cutting face and a body extending axially downward from the cutting face, at least one hole extending from an outer surface of the body toward the axis of rotation, and a locking device disposed in each hole, wherein the locking device protrudes from the hole to contact the second inner diameter of the sleeve, thereby retaining the rotatable cutting element within the sleeve.
    Type: Application
    Filed: April 26, 2012
    Publication date: November 1, 2012
    Applicant: SMITH INTERNATIONAL, INC.
    Inventors: Yuri Burhan, Jiaqing Yu, Jonan M. Fulenchek, Youhe Zhang, Yuelin Shen