Patents by Inventor Johannes Roller

Johannes Roller 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: 4984501
    Abstract: An apparatus for processing cartridge cases, particularly for distinguishing between different fuzing systems of cartridge cases for center fire cartridges, comprises sensing means, which are reciprocable along the longitudinal center line of the cartridge case from and to a predetermined initial position, and means which oppose a displacement of the sensing means from the initial position. Means may be provided for indicating a displacement of the sensing means from their initial position. The apparatus may constitute a cartridge case processing tool for use in a machine for loading cartridge cases for center fire cartridges or may be integrated in the sizing die of such machine. The sensing means may comprise mechanical sensing means or an optical sensor, which is adapted to be inserted into the cartridge case and is opertively connected to an indicator.
    Type: Grant
    Filed: May 22, 1990
    Date of Patent: January 15, 1991
    Inventor: Johannes Roller
  • Patent number: 4687045
    Abstract: High casting rates and consistently precise dimensions of lead and lead alloy projectiles are obtained with an ingot mold comprising two like ingot mold halves having abutting sides and upper and lower sides extending outwardly therefrom, the abutting mold half sides defining like cavity halves open towards the upper sides of the mold halves and forming a mold cavity for casting the projectile. Each mold half consists essentially of a first part of a metal having a high wettability for the lead or lead alloy being cast, the first metal parts of the mold halves defining the mold cavity, and a second part of a metal having a higher thermal conductivity than the first metal part, the second metal part being in heat conducting contact with the first part.
    Type: Grant
    Filed: March 31, 1986
    Date of Patent: August 18, 1987
    Inventor: Johannes Roller