Patents by Inventor Juerg Wyssen

Juerg Wyssen 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).

  • Spring system for blowback action for pistol-caliber firearms
    Patent number: 10619955
    Abstract: A spring system for blowback action is provided with a control piece (2) and pusher piece (3) supported so that it can be displaced on the guide rod (7). On its end, a buffer (4) is arranged with a buffer spring (6). The guide rod (7) is also used for guiding the closing spring (8). Between the control piece (2) and pusher piece (3) there are five rollers (10) in a recess (9) of the guide rod (7), and these rollers cause a delay of the action during the blowback after the discharge of a shot.
    Type: Grant
    Filed: February 15, 2019
    Date of Patent: April 14, 2020
    Assignee: Wyssen Defence AG
    Inventor: Juerg Wyssen
  • SPRING SYSTEM FOR BLOWBACK ACTION FOR PISTOL-CALIBER FIREARMS
    Publication number: 20190383571
    Abstract: A spring system for blowback action is provided with a control piece (2) and pusher piece (3) supported so that it can be displaced on the guide rod (7). On its end, a buffer (4) is arranged with a buffer spring (6). The guide rod (7) is also used for guiding the closing spring (8). Between the control piece (2) and pusher piece (3) there are five rollers (10) in a recess (9) of the guide rod (7), and these rollers cause a delay of the action during the blowback after the discharge of a shot.
    Type: Application
    Filed: February 15, 2019
    Publication date: December 19, 2019
    Applicant: Wyssen Defence AG
    Inventor: Juerg Wyssen
  • Ambidextrous magazine release for a firearm
    Patent number: 10415913
    Abstract: The device (8) allows the release of a detachable magazine from the left and right side of the trigger housing of a firearm, and includes a left lever arm (6) pivotable about a left pivot pin (15) and a right lever arm (7) pivotable about a right pivot pin (14). The right lever arm includes a catch (9) to retain a magazine. The left lever arm (6) includes a left lever extension (12), and the right lever arm (7) includes a right lever extension (13), and these lever extensions are coupled together. When the right lever arm (7), together with its push-button (11), is pivoted to the right, the catch disengages and releases the magazine whilst the left lever arm (6) remains immobile.
    Type: Grant
    Filed: November 9, 2017
    Date of Patent: September 17, 2019
    Assignee: Wyssen Defence AG
    Inventor: Juerg Wyssen
  • AMBIDEXTROUS MAGAZINE RELEASE FOR A FIREARM
    Publication number: 20180156556
    Abstract: The device (8) allows the release of a detachable magazine from the left and right side of the trigger housing of a firearm, and includes a left lever arm (6) pivotable about a left pivot pin (15) and a right lever arm (7) pivotable about a right pivot pin (14). The right lever arm includes a catch (9) to retain a magazine. The left lever arm (6) includes a left lever extension (12), and the right lever arm (7) includes a right lever extension (13), and these lever extensions are coupled together. When the right lever arm (7), together with its push-button (11), is pivoted to the right, the catch disengages and releases the magazine whilst the left lever arm (6) remains immobile.
    Type: Application
    Filed: November 9, 2017
    Publication date: June 7, 2018
    Applicant: Wyssen Defence AG
    Inventor: Juerg Wyssen