Patents by Inventor Per Jonson

Per Jonson 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: 20130064708
    Abstract: A method for injection molding or extrusion of cemented carbide or cermet parts uses a binder system, including 20-70 wt-% olefinic polymer, 30-80 wt-% wax. The olefinic polymer is a co-polymer of polyethylene and poly(alpha-olefin). By using such a binder system, a tougher material behavior of the green body and a lower temperature during the injection molding or extrusion is achieved.
    Type: Application
    Filed: April 20, 2010
    Publication date: March 14, 2013
    Applicant: SECO TOOLS AB
    Inventors: Regina Lundell, Per Jonson, Mattias Puide
  • Patent number: 7841803
    Abstract: A device for rock bolting with an adapter device (10) for connection of a drilling machine (3) to a self drilling rock bolt (7), in which the adapter device has an adapter element (14) which is sealingly surrounded by a swivel sleeve (13) for connection to one or more external source for flushing medium (8) and bolt grouting medium (9), and in which the adapter element has a thread for connecting to a corresponding thread on the rock bolt (7), and an integral connection portion for connection to the drilling machine (3).
    Type: Grant
    Filed: May 12, 2004
    Date of Patent: November 30, 2010
    Assignee: Atlas Copco Rock Drills AB
    Inventors: Fredrik Öberg, Per Jonson
  • Publication number: 20060278414
    Abstract: Device for rock bolting with an adapter device (10) for connection of a drilling machine (3) to a self drilling rock bolt (7), said adapter device including an adapter element (14) which is sealingly surrounded by a swivel sleeve (13) for connection to (one) external (source) sources for flushing medium (8) and bolt grouting medium (9), wherein the adapter element includes a thread for connecting to a corresponding thread on the rock bolt (7), and an integral connection portion for connection to the drilling machine (3). The invention also concerns a device for automatized rock bolting and a method for rock bolting.
    Type: Application
    Filed: May 12, 2004
    Publication date: December 14, 2006
    Inventors: Fredrik Oberg, Per Jonson