Patents by Inventor Jarmo Kumpula

Jarmo Kumpula 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).

  • Blowback bolt upper receiver and barrel assembly
    Patent number: 8844423
    Abstract: Disclosed herein is a modified upper receiver assembly and method of assembly, which in one form is operatively configured to be fitted to a conventional lower receiver of a rifle so the user can use their normal lower receiver having a pistol grip, trigger assembly and butt stock. The upper receiver is configured to provide a blowback bolt assembly of larger mass than would be possible with similar density materials of a bolt fitted within an upper receiver conventionally made for said lower receiver.
    Type: Grant
    Filed: June 17, 2013
    Date of Patent: September 30, 2014
    Assignee: Nordic Components, Inc.
    Inventors: Timothy Ubl, Jarmo Kumpula
  • Rimfire action platform conversion
    Patent number: 8713838
    Abstract: A rifle conversion platform assembly comprised of components to fit around an existing action such that attachment locations such as a hand guard, pistol grip, and butt stock attachment locations are provided to have conventional rifle components, which in one form may be components of a high caliber semiautomatic rifle such as an AR-15, attached thereto.
    Type: Grant
    Filed: June 25, 2012
    Date of Patent: May 6, 2014
    Assignee: Nordic Components
    Inventors: Timothy R. Ubl, Jarmo Kumpula
  • Blowback bolt upper receiver and barrel assembly
    Patent number: 8464453
    Abstract: Disclosed herein is a modified upper receiver assembly, which in one form is operatively configured to be fitted to a conventional lower receiver of a rifle so the user can use their normal lower receiver having a pistol grip, trigger assembly and butt stock. The upper receiver is configured to provide a blowback bolt assembly of larger mass than would be possible with similar density materials of a bolt fitted within an upper receiver conventionally made for said lower receiver.
    Type: Grant
    Filed: January 18, 2011
    Date of Patent: June 18, 2013
    Assignee: Nordic Components, Inc.
    Inventors: Timothy Ubl, Jarmo Kumpula
  • Rimfire Action Platform Conversion
    Publication number: 20120291329
    Abstract: A rifle conversion platform assembly comprised of components to fit around an existing action such that attachment locations such as a hand guard, pistol grip, and butt stock attachment locations are provided to have conventional rifle components, which in one form may be components of a high caliber semiautomatic rifle such as an AR-15, attached thereto.
    Type: Application
    Filed: June 25, 2012
    Publication date: November 22, 2012
    Applicant: NORDIC COMPONENTS
    Inventors: Timothy R. Ubl, Jarmo Kumpula
  • Rimfire action platform conversion
    Patent number: 8205373
    Abstract: A rifle conversion platform assembly comprised of components to fit around an existing action such that attachment locations such as a hand guard, pistol grip, and butt stock attachment locations are provided to have conventional rifle components, which in one form may be components of a high caliber semiautomatic rifle such as an AR-15, attached thereto.
    Type: Grant
    Filed: December 8, 2008
    Date of Patent: June 26, 2012
    Assignee: Nordic Components
    Inventors: Tim Ubl, Jarmo Kumpula
  • RIMFIRE ACTION PLATFORM CONVERSION
    Publication number: 20120137563
    Abstract: A rifle conversion platform assembly comprised of components to fit around an existing action such that attachment locations such as a hand guard, pistol grip, and butt stock attachment locations are provided to have conventional rifle components, which in one form may be components of a high caliber semiautomatic rifle such as an AR-15, attached thereto.
    Type: Application
    Filed: December 8, 2008
    Publication date: June 7, 2012
    Inventors: Timothy R. Ubl, Jarmo Kumpula