Patents by Inventor David Wickstrom

David Wickstrom 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).

  • Drill rod or adaptor with strengthened spigot coupling
    Patent number: 11162619
    Abstract: An elongate component, such as a drill rod or adaptor, forms part of a drill string having a shoulder contact male spigot coupling. The male spigot includes a non-threaded shank and a threaded section in which an axial length of the non-threaded shank is provided at a predetermined minimum relative to an outside diameter of the spigot at the threaded section.
    Type: Grant
    Filed: May 19, 2016
    Date of Patent: November 2, 2021
    Assignee: SANDVIK INTELLECTUAL PROPERTY AB
    Inventors: Petri Ahola, David Wickström, Andreas Norman
  • DRILL BIT WITH CURVED SLUDGE GROOVES
    Publication number: 20210238927
    Abstract: A percussive drill bit includes a head and an axially rearward skirt. A plurality of ribs project radially outward at the skirt and define lengthwise extending channels. The ribs and channels, in the lengthwise direction are curved or angled to deviate from a longitudinal axis of the drill bit to facilitate rearward transport of fines and flushing fluid.
    Type: Application
    Filed: August 15, 2019
    Publication date: August 5, 2021
    Inventors: John HAMMARGREN, David WICKSTROM
  • Threaded coupling end for a percussion drill string component
    Patent number: 10627023
    Abstract: A threaded coupling for a drill string component includes a body on which is formed a thread. A reduction in stress concentrations and a resistance to bending moments are achieved at the thread by reducing a thread depth at at least one axial end of the thread and by arranging an endmost flank of a crest or root of the thread at an endmost helical turn.
    Type: Grant
    Filed: May 19, 2016
    Date of Patent: April 21, 2020
    Assignee: SANDVIK INTELLECTUAL PROPERTY AB
    Inventors: David Wickström, Andreas Norman
  • DRILL ROD OR ADAPTOR WITH STRENGTHENED SPIGOT COUPLING
    Publication number: 20180135782
    Abstract: An elongate component, such as a drill rod or adaptor, forms part of a drill string having a shoulder contact male spigot coupling. The male spigot includes a non-threaded shank and a threaded section in which an axial length of the non-threaded shank is provided at a predetermined minimum relative to an outside diameter of the spigot at the threaded section.
    Type: Application
    Filed: May 19, 2016
    Publication date: May 17, 2018
    Inventors: PETRI AHOLA, DAVID WICKSTRÖM, ANDREAS NORMAN
  • THREADED COUPLING END FOR A PERCUSSION DRILL STRING COMPONENT
    Publication number: 20180135783
    Abstract: A threaded coupling for a drill string component includes a body on which is formed a thread. A reduction in stress concentrations and a resistance to bending moments are achieved at the thread by reducing a thread depth at at least one axial end of the thread and by arranging an endmost flank of a crest or root of the thread at an endmost helical turn.
    Type: Application
    Filed: May 19, 2016
    Publication date: May 17, 2018
    Inventors: DAVID WICKSTRÖM, ANDREAS NORMAN
  • DRILL STRING ROD WITH GUIDANCE SHOULDER
    Publication number: 20170321496
    Abstract: A drill string rod and a drill string assembly includes a drill rod and a drill bit. The rod includes a threaded male end and a female end. An axially extending shoulder is provided at the male end and has an axial length greater than an outside diameter of the shoulder to provide a shoulder driven rod exhibiting enhanced guidance to achieve straighter holes and better collaring.
    Type: Application
    Filed: November 13, 2015
    Publication date: November 9, 2017
    Inventors: Per MATTSON, David WICKSTROM
  • Trailer Hitch-Ball Chain Coupler
    Publication number: 20120023710
    Abstract: A tool for temporarily coupling a chain to a trailer hitch-ball or similar device, or for temporarily coupling separate chains comprising a rigid flat body contour plate with a hitch-ball cavity member for engagement with a trailer hitch-ball or similar device, an engagement slot member as a securing mechanism to the hitch-ball, and opposing chain link notches members for engagement of chain(s).
    Type: Application
    Filed: July 26, 2011
    Publication date: February 2, 2012
    Inventors: David Wickstrom, Paul McMahan, Jon Ker
  • DESKTOP CARD PROCESSOR
    Publication number: 20080106585
    Abstract: A desktop card processor having increased card processing capabilities without increasing the horizontal footprint of the card processor. The card processor utilizes multiple card processing levels stacked in vertically separated levels to minimize the horizontal footprint of the card processor.
    Type: Application
    Filed: November 6, 2007
    Publication date: May 8, 2008
    Applicant: DataCard Corporation
    Inventors: Arthur Paulson, Mark Sobania, David Wickstrom, David Pierson
  • Desktop card processor
    Publication number: 20060175395
    Abstract: A desktop card processor having increased card processing capabilities without increasing the horizontal footprint of the card processor. The card processor utilizes multiple card processing levels stacked in vertically separated levels to minimize the horizontal footprint of the card processor.
    Type: Application
    Filed: February 4, 2005
    Publication date: August 10, 2006
    Inventors: Arthur Paulson, Mark Sobania, David Wickstrom, David Pierson
  • Plastic card reorienting mechanism and interchangeable input hopper
    Publication number: 20050104281
    Abstract: A card reorienting mechanism and an input hopper of plastic card processing equipment, for example a desktop plastic card printer. The card reorienting mechanism is a modular unit that permits the entire mechanism to be inserted or removed as a single unit from the printer. In addition, the input hopper is designed as an interchangeable system that permits alteration in the card capacity of the hopper.
    Type: Application
    Filed: November 17, 2003
    Publication date: May 19, 2005
    Applicant: DATACARD CORPORATION
    Inventors: Eric Stender, Peter Schuller, Bryan Hoeve, David Wickstrom, Mark Sobania