Patents by Inventor Daniel Hilsabeck

Daniel Hilsabeck 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).

  • Recoil Reducing Spring System
    Publication number: 20150192380
    Abstract: A firearm comprising a receiver with a bolt carrier assembly, a buttstock having a tube shaped opening adjacent to the rear of the bolt carrier assembly, a plurality of springs having similar inside and outside diameters disposed end-to-end within the tube shaped opening, and a buffer having a small diameter body disposed inside the inner diameter of the springs and having a large diameter head disposed where the foremost spring presses against the rear of the head and the front of the head presses against the rear of the bolt carrier assembly.
    Type: Application
    Filed: January 5, 2014
    Publication date: July 9, 2015
    Inventor: Daniel Hilsabeck