Patents by Inventor Hans Umbach

Hans Umbach 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: 4809612
    Abstract: Polyethylene crosslinked by high-energy radiation, preferably electron beams, is an effective material for the manufacture of ammunition elements, preferably cases for cartridges. The case is produced by irradiating a molded case component of polyethylene with high-energy radiation.
    Type: Grant
    Filed: April 6, 1987
    Date of Patent: March 7, 1989
    Assignee: Dynamit Nobel Aktiengesellschaft
    Inventors: Kurt Ballreich, Axel Homburg, Horst Rammensee, Hans Umbach
  • Patent number: 4140058
    Abstract: A cartridge case and a process for the production thereof wherein the cartridge case includes an elongated tubular member and a separate bottom part. The separate bottom part is insertable in said elongated tubular member such that at least a portion of the wall surfaces of said bottom part and said tubular member contact one another and at least one of said separate bottom part and said elongated tubular member in the region of the wall surfaces to be contacted is provided with transfer elements. The transfer element means are responsive to ultrasonic energy for joining said bottom part and said elongated tubular member together such that a cartridge case is formed especially utilizable as a shot cartridge case.
    Type: Grant
    Filed: August 18, 1976
    Date of Patent: February 20, 1979
    Assignee: Dynamit Nobel Aktiengesellschaft
    Inventors: Kurt Ballreich, Hans Umbach, Jurgen Ahlborn, Wolfgang Reuter
  • Patent number: 4098169
    Abstract: Ammunition belt apparatus for accommodating propellant cartridges including a flexible, coilable belt strip, a plurality of holes extending transversely through the strip and spaced from one another in the longitudinal direction of the strip, and clamping means associated with each of the holes for clamping a cartridge to the strip with portions of the cartridge extending through one of the holes, and with parts of said clamping means being formed separately from the strip and the cartridge. In preferred embodiments, the clamping means includes a tubular casing formed separately from the strip for each of the holes, which tubular casing press-fittingly engages a respective cartridge for holding the cartridge in position on the strip with the casing and a cartridge rim clamping the strip therebetween. Various preferred embodiments include various types of connections for the casings at the strip as well as various materials for the construction of the strip and the casings.
    Type: Grant
    Filed: April 2, 1973
    Date of Patent: July 4, 1978
    Assignee: Dynamit Nobel Aktiengesellschaft
    Inventors: Heinz Gawlick, Hans Umbach