Patents by Inventor Adolf P. Bierwirth

Adolf P. Bierwirth 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: 4833969
    Abstract: A loading device for a tubular weapon includes two adjacent belt magazines; a separate loading tray cooperating with each magazine and being arranged for pivotal motion about 90.degree. from a cartridge-receiving position into a loading position in alignment with the tubular weapon; a common partition wall forming part of the two magazines and being arranged between the discharge sides of the magazines and the tubular weapon; at least one partition door provided in the partition wall; separate drive chains supported along the discharge side of each magazine and being connected to a respective loading tray for displacing the loading tray; a separate linear guide being in guiding engagement with each loading tray; and a separate curved guide extending generally along the discharge side of the respective magazine and being bent theretoward. The linear guide and the curved guide together guiding the respective loading tray from one of its positions to the other of its positions when displaced by the drive chain.
    Type: Grant
    Filed: January 21, 1988
    Date of Patent: May 30, 1989
    Assignee: Rheinmetall GmbH
    Inventors: Gert Winkler, Erich Zielinski, Adolf P. Bierwirth
  • Patent number: 4674215
    Abstract: An arrangement for bridging over the path traversed by cartridge being loaded via a loading tray and loading channel in a breech plate into the loading chamber of the weapon. The arrangement includes a trough-shaped flap which is pivotally mounted on the breech plate in such a way that it provides a guidance for the cartridge so that it cannot be damaged by a difference in height between the lower edge of the loading chamber and the breech block. The flap is pivoted about a horizontal axis when the breech block is in the open position and its free end remains at the level of the lower edge of the loading chamber until the cartridge casing has been securely guided into the loading chamber.
    Type: Grant
    Filed: February 15, 1984
    Date of Patent: June 23, 1987
    Assignee: Rheinmetall GmbH
    Inventor: Adolf P. Bierwirth
  • Patent number: 4619181
    Abstract: An automatic loading arrangement of a gun barrel weapon. An ammunition holder is provided having a portion which is adapted to be pivotally connected to another ammunition holder and so on to form a band magazine, for the purpose of holding thin-walled cartridged ammunition units, preferably tank and armored vehicle ammunition having a combustible casing, which ammunition can be transported and guided to a loading tray or chamber without being damaged by outside influences, for example travel shocks, vibrations, etc.The ammunition holder has a semi-circular arcuately shaped tray adapted to conform with the shape of the cartridged ammunition, which tray has a small inner diameter region to matingly receive the projectile head and a relatively larger inner diameter region adapted to matingly receive the cartridge bottom.
    Type: Grant
    Filed: March 13, 1985
    Date of Patent: October 28, 1986
    Assignee: Rheinmetall GmbH
    Inventors: Manfred Pehker, Erich Zielinski, Josef Metz, Adolf P. Bierwirth
  • Patent number: 4566369
    Abstract: A compact loading tray mechanism for loading an ammunition into a gun barrel weapon, preferably a tank cannon. The loading tray mechanism operates so as to prevent an impacting of the cartridge on the rear edge of the loading chamber of the weapon. A first lower loading tray is pivotally mounted on a first pivot arm at one of its ends which first pivot arm is in turn pivotally mounted on a non-recoiling part of the weapon at the other of its ends. A second upper loading tray is fixedly mounted on a second pivot arm at one of its ends which second pivot arm is in turn pivotally mounted at its other end on a non-recoiling part of the weapon.
    Type: Grant
    Filed: February 15, 1984
    Date of Patent: January 28, 1986
    Assignee: Rheinmetall GmbH
    Inventors: Adolf P. Bierwirth, Erich Zielinski