Patents by Inventor Wolfgang Meffert

Wolfgang Meffert 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: 4930420
    Abstract: A projectile includes a propellant charge and a nozzle opening provided in a rear projectile part and serving as an exit for propellant charge gases during flight of the projectile; a resilient rupturnable rubber or plastic sealing disc closing the nozzle opening for protection against environmental influences.
    Type: Grant
    Filed: June 8, 1989
    Date of Patent: June 5, 1990
    Assignee: Rheinmetall GmbH
    Inventors: Wolfgang Meffert, Kalr-Heinz Silligmann, Siegmar Fischer, Ulf Hahn
  • Patent number: 4759292
    Abstract: A spin stabilized payload projectile 10, in order to separate a projectile base connected with projectile body 11 and to eject a payload 13, is provided with an ejection charge 15 in its nose region, with such ejection charge being activated with a certain delay by a nose fuze 14. To prevent damage to the nose fuze 14 by the gas pressure generated by ejection charge 15, a pressure reducing element 20 is disposed between nose fuze 14 and the ejection charge. In a particularly advantageous embodiment of the invention, this pressure reducing element 20 is composed of a cone or a cone frustum whose base face faces nose fuze 14 and whose tip faces ejection charge 15. The tip of pressure reducing element 20 is provided with an opening 20a through which a firing jet travels from nose fuze 14 to ejection charge 15 for the purpose of activating charge 15. After activation of ejection charge 15, pressure reducing element 20 is deformed into a substantially gas tight disc.
    Type: Grant
    Filed: January 2, 1987
    Date of Patent: July 26, 1988
    Assignee: Rheinmetall GmbH
    Inventors: Wolfgang Meffert, Karl-Heinz Silligmann