Patents by Inventor Ferenc Kotai

Ferenc Kotai 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: 4726137
    Abstract: A cleaning device for guns in which a cleaning brush fastened to a brush carrier is moved to-and-fro in the barrel by means of a rod. A drive unit with drive wheels which can be engaged with the rod is arranged in the front of the muzzle of the gun so that the cleaning operation can be simply carried out with a small expenditure of time and labor.
    Type: Grant
    Filed: February 5, 1985
    Date of Patent: February 23, 1988
    Assignee: Krauss-Maffei A.G.
    Inventors: Rudolf Zurek, Ferenc Kotai, Markus Spoetzl, Leonhard Pongratz
  • Patent number: 4677894
    Abstract: A device for centering retention of ammunition includes an ammunition receiver having spring elastic holding elements acting in the radially inward direction in the tapering section of the ammunition and gripping elements holding the ring of the cartridge of the ammunition arranged in the bottom area of the ammunition. The holding elements are made up of leaf springs fastened to the ammunition receiver in the direction of the generators of the ammunition in a forward and a rear clamping location in order to assure retention of the ammunition without wear in case of severe jolting movements and to assure safe transfer of the ammunition into the cartridge chamber without damaging it. Each leaf spring comprising a recess or inward protrusion acting on the ammunition in its tapering section and a free end projecting past a forward clamping location in a radially inward direction.
    Type: Grant
    Filed: October 15, 1986
    Date of Patent: July 7, 1987
    Assignee: Krauss-Maffei A.G.
    Inventors: Leonhard Pongratz, Ferenc Kotai, Markus Spotzl
  • Patent number: 4674396
    Abstract: A loading device with a rammer, arranged for coupling with ammunition bases, exhibiting a transport and coupling segment. The coupling segment exhibits a plurality of grippers with claws adapted to engage an undercut base of ammunition. The bearing member for the grippers is movable with respect to the transport segment with a first limit position, corresponding to the maximum distance of the bearing member from the transport segment. The bearing member has a stop element for fixing the position of the bearing member relative to the ammunition base. After the rammer is moved against the base the transport segment is moved toward the coupling segment. The grippers are moved out of their rest positions assumed by the action of a resetting mechanism, and into their gripping positions against the edge of the base of the ammunition by an actuating member.
    Type: Grant
    Filed: May 19, 1986
    Date of Patent: June 23, 1987
    Assignee: Krauss-Maffei A.G.
    Inventors: Leonhard Pongratz, Ulrich Degener, Markus Spoetzl, Ferenc Kotai
  • Patent number: 4448107
    Abstract: A tank turret has a forward crew compartment separated by an armored partition from a rear munitions compartment. The rounds are stored in a nonrotatable sector and are turned toward a space at the centrum of the sector at which a loading device is rotatable to extract rounds from the magazine and feed them through a hole in the partition into the breach opening.
    Type: Grant
    Filed: March 29, 1982
    Date of Patent: May 15, 1984
    Assignee: Krauss-Maffei Aktiengesellschaft
    Inventors: Ferenc Kotai, Markus Spotzl, Erich Drosen, Leo Pongratz
  • Patent number: 4438677
    Abstract: An armored vehicle with a rotatable turret, e.g. a tank, has its gun (cannon) supplied from a munitions bunker behind the turret in which the munitions rounds are stored in tubes inclined at angles less than 90.degree. to the axis of the gun when the breech thereof is aligned with an opening in the magazine through which the rounds are fed from a tunnel in the magazine aligned with the gun. The rounds lie in substantially horizontal planes and are withdrawn from storage tubes by a device movable axially along the tunnel and swingable into alignment with each tube to withdraw the round therefrom and feed it through the opening into the breech of the gun.
    Type: Grant
    Filed: November 6, 1981
    Date of Patent: March 27, 1984
    Assignee: Krauss-Maffei Aktiengesellschaft
    Inventors: Markus Spotzl, Erich Drosen, Leonhard Pongratz, Ferenc Kotai