Patents by Inventor Kaj B. I. Emanuelsson

Kaj B. I. Emanuelsson 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).

  • Tunnel boring machine
    Patent number: 5046783
    Abstract: Tunnel boring machine comprising a transmission housing (11) which during boring is fixed relative to the tunnel. The boring head (15) is axially displaceable relative to an outgoing shaft (14) of the transmission housing while transferring torque from the outgoing shaft to the boring head. A number of fluid cylinders (16) are arranged between the transmission housing and a bearing housing (19,30) for the boring head in order to press the boring head against a tunnel front.
    Type: Grant
    Filed: December 13, 1989
    Date of Patent: September 10, 1991
    Assignee: Atlas Copco MCT AB
    Inventors: Kaj B. I. Emanuelsson, Carl S. M. Hartwig
  • Liquid injected compressor with temperature control of liquid
    Patent number: 4289461
    Abstract: A liquid-injected compressor device for avoiding condensation of moisture in the outlet of a compressor is disclosed. The device comprises a control valve which is actuated in opposite directions by two sensors. One of the sensors senses the inlet temperature of the compressor and the other the outlet temperature. A constant temperature difference is maintained between the inlet and outlet of the compressor.
    Type: Grant
    Filed: July 9, 1979
    Date of Patent: September 15, 1981
    Assignee: Atlas Copco Aktiebolag
    Inventors: Gosewinus F. van Oorschot, Kaj B. I. Emanuelsson
  • Rotors for a screw rotor machine
    Patent number: 4088427
    Abstract: A pair of cooperating rotors for a screw rotor machine, comprising a main rotor with a dedendum and a gate rotor with an addendum. One flank of each gate rotor land is generated inside the pitch circle of the gate rotor by the crest of the main rotor land and is generated outside the pitch circle by a portion of the main rotor inside the pitch circle and is formed to sealingly cooperate with the main rotor land so that gear action is obtained only outside the pitch circle of the gate rotor and inside the pitch circle of the main rotor.
    Type: Grant
    Filed: September 13, 1976
    Date of Patent: May 9, 1978
    Assignee: Atlas Copco Aktiebolag
    Inventors: Kaj B. I. Emanuelsson, Sven E. Eriksson