Patents by Inventor Andrew Antoine Buzinsky

Andrew Antoine Buzinsky 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).

  • Downhole shock absorber
    Patent number: 6412614
    Abstract: A shock absorber for damping shock energy generated by downhole perforating guns or stimulation devices is described. The shock absorber includes a spring assembly including at least a first spring and a second spring, the first spring having a tension greater than the second spring; a damper assembly; and a housing retaining the spring assembly and the damper assembly and including ends adapted for connection into a casing perforation assembly. The provision of springs of increasing stiffness permits the force generated by the perforating gun to be absorbed gradually and smoothly.
    Type: Grant
    Filed: September 20, 1999
    Date of Patent: July 2, 2002
    Assignees: Core Laboratories Canada Ltd., Computalog Ltd.
    Inventors: Timothy Edward Lagrange, Andrew Antoine Buzinsky, David O. Carlson