Patents by Inventor HAROLD GRIFFIN

HAROLD GRIFFIN 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).

  • Publication number: 20160116213
    Abstract: An elevated flooring system for use in a drying trailer including a truss, a bottom surface of the truss fixedly attachable to a trailer floor of the drying trailer; a drying floor including a floor panel defining openings sized to allow passage of drying air, the floor panel lying on the truss and separable from the truss, the truss sized to elevate the drying floor a spaced distance from the trailer floor; and a support attachable to a side wall of the drying trailer, the drying floor detachably connected to the support.
    Type: Application
    Filed: October 27, 2014
    Publication date: April 28, 2016
    Inventors: William E. Dykes, JR., Henry Harold Griffin, David M. Rogers, Larry W. Nichols
  • Publication number: 20120234601
    Abstract: A bit breaker for loosening or tightening a drill bit on a drill string incorporating a mud motor permits rotation of the drill bit while the bit box is held stationary. The bit breaker has a lower body which is held stationary on the rig floor and an upper body which houses the drill bit and which is connected to the lower body through a rotational connection. An actuator connected between the upper and lower bodies causes the upper body to rotate relative to lower body for co-rotating the drill bit. The bit box of the mud motor is held stationary using the lower tong of a conventional make-and-break unit.
    Type: Application
    Filed: March 18, 2011
    Publication date: September 20, 2012
    Applicant: PRECISION DRILLING CORPORATION
    Inventor: HAROLD GRIFFIN