Patents by Inventor Peter Grübl

Peter Grübl 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).

  • Pneumatic chipping hammer
    Patent number: 11992927
    Abstract: A pneumatic chisel includes a housing having a double-acting pneumatic cylinder in which a piston including a chisel is movably arranged along a longitudinal axis. The cylinder has a work-side section and a return-side section. The return-side section includes a damping portion and a pressure-equalization opening. The work-side section includes an end-position damping member and a compressed air connection. A compressed air reservoir is connected to the return-side section of the cylinder. A chisel guide housing includes a sealing air chamber. The piston is constructed as one piece with the chisel.
    Type: Grant
    Filed: October 8, 2018
    Date of Patent: May 28, 2024
    Assignee: Wacker Chemie AG
    Inventors: Peter Grübl, Martin Brixel
  • PNEUMATIC CHIPPING HAMMER
    Publication number: 20210339370
    Abstract: A pneumatic chisel includes a housing having a double-acting pneumatic cylinder in which a piston including a chisel is movably arranged along a longitudinal axis. The cylinder has a work-side section and a return-side section. The return-side section includes a damping portion and a pressure-equalization opening. The work-side section includes an end-position damping member and a compressed air connection. A compressed air reservoir is connected to the return-side section of the cylinder. A chisel guide housing includes a sealing air chamber. The piston is constructed as one piece with the chisel.
    Type: Application
    Filed: October 8, 2018
    Publication date: November 4, 2021
    Applicant: Wacker Chemie AG
    Inventors: Peter Grübl, Martin Brixel