Patents by Inventor Krzysztof J. Kras

Krzysztof J. Kras 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).

  • Patent number: 10288375
    Abstract: An air gun and methods of manufacture are provided. The air gun includes a barrel block pivotally attached to a compression fork. The barrel block includes two lateral wedges, one extending from each side of the barrel block. The wedges interact with complementary surfaces on the compression fork. This interaction reduces both lateral and vertical movement of the barrel resulting in greater accuracy and reduced need for re-sighting the air gun.
    Type: Grant
    Filed: March 2, 2018
    Date of Patent: May 14, 2019
    Assignee: Sig Sauer, Inc.
    Inventors: Sidney A. Spreadbury, III, Justin Daniel Heckert, Krzysztof J. Kras
  • Publication number: 20180347937
    Abstract: Techniques and componentry are disclosed for an air gun with a cocking linkage shoe. The air gun includes a barrel pivotally attached to a cylinder. Attached to the barrel is a linkage. The linkage is operatively coupled to a piston within the cylinder and includes a lever and a shoe. The lever has a first end attached to the barrel and a second end that includes a first surface having a concave or convex shape. The shoe is attached to the lever and operatively connected to the piston. The shoe includes a second surface having a concave or convex shape in tangential contact with the first surface of the lever. The air gun further includes a trigger mechanism configured to release the piston in response to operating the trigger mechanism.
    Type: Application
    Filed: May 29, 2018
    Publication date: December 6, 2018
    Applicant: Sig Sauer, Inc.
    Inventors: Krzysztof J. Kras, Justin D. Heckert
  • Publication number: 20180252493
    Abstract: Techniques and componentry are disclosed for an air gun with an adjustable trigger mechanism. The air gun includes a cylinder attached to a barrel and a trigger mechanism. The trigger mechanism includes a sear operatively coupled to a trigger bar and configured to release a piston disposed within the cylinder in response to operating the trigger mechanism. Operatively coupled to the trigger bar is a trigger blade that includes a trigger stage bracket. The trigger stage bracket provides a second pull stage that operates with more resistance than a first pull stage during trigger blade movement. An adjustment screw is disposed within the trigger blade and is in contact with the trigger stage bracket. The adjustment screw positions the trigger stage bracket relative to the trigger blade to adjust a distance at which the trigger blade transitions from the first pull stage to the second pull stage.
    Type: Application
    Filed: March 2, 2018
    Publication date: September 6, 2018
    Applicant: Sig Sauer, Inc.
    Inventors: Justin Daniel Heckert, Krzysztof J. Kras
  • Publication number: 20180252492
    Abstract: An air gun and methods of manufacture are provided. The air gun includes a barrel block pivotally attached to a compression fork. The barrel block includes two lateral wedges, one extending from each side of the barrel block. The wedges interact with complementary surfaces on the compression fork. This interaction reduces both lateral and vertical movement of the barrel resulting in greater accuracy and reduced need for re-sighting the air gun.
    Type: Application
    Filed: March 2, 2018
    Publication date: September 6, 2018
    Applicant: Sig Sauer, Inc.
    Inventors: Sidney A. Spreadbury, III, Justin Daniel Heckert, Krzysztof J. Kras