Patents by Inventor Rick Mecham

Rick Mecham 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).

  • Full closure core catcher
    Patent number: 9816337
    Abstract: A core catcher includes a housing having an inner wall that defines an axial bore through the housing. A retention member is disposed within the housing and is coupled to a first hinge tab that defines a first hinge barrel with the inner wall of the housing. A first closure member has a slot that is engaged with the first hinge tab and a pivot edge that is at least partially disposed within the first hinge barrel. In an open position, the first closure member is disposed in an annulus between a sleeve that is slidably disposed within the housing and the housing. In a closed position the first closure member is disposed at least partially across the axial bore of the housing.
    Type: Grant
    Filed: October 12, 2011
    Date of Patent: November 14, 2017
    Assignee: National Oilwell Varco, L.P.
    Inventors: Jiri Zastresek, Rick Mecham
  • FULL CLOSURE CORE CATCHER
    Publication number: 20130092442
    Abstract: A core catcher includes a housing having an inner wall that defines an axial bore through the housing. A retention member is disposed within the housing and is coupled to a first hinge tab that defines a first hinge barrel with the inner wall of the housing. A first closure member has a slot that is engaged with the first hinge tab and a pivot edge that is at least partially disposed within the first hinge barrel. In an open position, the first closure member is disposed in an annulus between a sleeve that is slidably disposed within the housing and the housing. In a closed position the first closure member is disposed at least partially across the axial bore of the housing.
    Type: Application
    Filed: October 12, 2011
    Publication date: April 18, 2013
    Applicant: NATIONAL OILWELL VARCO, L.P.
    Inventors: Jiri Zastresek, Rick Mecham