Patents by Inventor Hans Hafeli

Hans Hafeli 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: 7669512
    Abstract: An automatic clutch is integrated in a weapon system between an ammunition feed system and a cannon. A feeder feeds ammunition into the cannon. The clutch mechanism includes an actuator, a locking pin with an assisting spring or the like, and locking cams. The clutch mechanism allows the drum shaft of the cannon to be disengaged from the gear of the feeder between the cannon and the ammunition supply system and thus from the conveyance mechanism of the feeder.
    Type: Grant
    Filed: February 14, 2007
    Date of Patent: March 2, 2010
    Assignee: Rheinmetall Air Defence AG
    Inventors: Klaus-Dieter Krause, Hans Häfeli, Michael Gerber
  • Publication number: 20080034952
    Abstract: An automatic clutch is integrated in a weapon system between an ammunition feed system and a cannon. A feeder feeds ammunition into the cannon. The clutch mechanism includes an actuator, a locking pin with an assisting spring or the like, and locking cams. The clutch mechanism allows the drum shaft of the cannon to be disengaged from the gear of the feeder between the cannon and the ammunition supply system and thus from the conveyance mechanism of the feeder.
    Type: Application
    Filed: February 14, 2007
    Publication date: February 14, 2008
    Inventors: Klaus-Dieter Krause, Hans Hafeli, Michael Gerber
  • Patent number: 4798124
    Abstract: A gas removal apparatus for an automatic firing weapon controlled by gas pressure contains a gas removal channel structure extending from a gas removal location to a gas receiving location and exhibiting one or two gas deflection locations as well as a gas throughflow element, such as a gas nozzle or gas throttle. Both the gas deflection locations and the gas nozzle or gas throttle are in danger of being eroded by the throughflowing gas. Therefore, these elements are constructed such that the gas erosion is as small as possible. According to the invention, this is attained by guiding a gas removal channel section or portion of the gas removal channel structure through a shrunk-fitted ring which is shrunk fitted onto the weapon barrel to a gas rail, by inserting the gas nozzle or gas throttle in the shrunk-fitted ring between the shrunk-fitted ring and the gas rail and by positioning a gas deflection insert in the gas rail.
    Type: Grant
    Filed: March 16, 1987
    Date of Patent: January 17, 1989
    Assignee: Werkzeugmaschinenfabrik Oerlikon-Buhrle AG
    Inventors: Ernst Hurlemann, Hans Hafeli