Patents by Inventor Lars Kall

Lars Kall 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: 6782705
    Abstract: A method and system for controlling the cooling of small milk quantities in a cooling tank (2) having a bottom wall portion (12) with a milk cooling surface (12′) within the tank being part of a cooling circuit an agitator (19) within the tank for stirring the milk therein. The gist of the invention is a) providing an element for measuring the milk quantity in the tank, and a temperature transducer (11) for monitoring the milk temperature in the tank, b) providing, in the cooling circuit, an evaporator (4) connected to the bottom wall portion of the tank, a compressor (5), and a condenser (7), c) controlling the temperature of the refrigerant in the evaporator by regulating the vaporizing pressure, so that the temperature of the milk cooling surface (12′) is always higher than 0° C. when the compressor (5) is running, d) monitoring the milk quantity in the tank, and, when sufficient/insufficient for the agitator to work properly.
    Type: Grant
    Filed: November 25, 2002
    Date of Patent: August 31, 2004
    Assignee: Delaval Holding AB
    Inventors: Magnus Lidman, Carolus Marinus Bernard Versteijnen, Anders Bjork, Lars Kall
  • Publication number: 20030131619
    Abstract: A method and system for controlling the cooling of small milk quantities in a cooling tank (2) having a bottom wall portion (12) with a milk cooling surface (12′) within the tank being part of a cooling circuit, an agitator means (19) within the tank for stirring the milk therein. The gist of the invention is: a) providing a means (10) for measuring the milk quantity in the tank, and a temperature transducer (11) for monitoring the milk temperature in the tank, b) providing, in the cooling circuit, an evaporator (4) connected to the bottom wall portion of the tank, a compressor (5), and a condenser (7), c) controlling the temperature of the refrigerant in the evaporator by regulating the vaporizing pressure, so that the temperature of the milk cooling surface (12′) is always higher than 0° C., whereas the refrigerant temperature in the evaporator (4) is below O° C.
    Type: Application
    Filed: November 25, 2002
    Publication date: July 17, 2003
    Inventors: Magnus Lidman, Carolus Marinus Bernard Versteijnen, Anders Bjork, Lars Kall
  • Patent number: 6584931
    Abstract: A system and method for controlling and monitoring the operation of an automatic milking system (1), wherein a central processing unit (8) is arranged to receive signals from peripheral hardware units (3, 4, 5, 6, 7, R) and to process the signals for obtaining hardware status related information or milking animal status related information. An interface (9, 10, 11, 12, 13) is arranged for communication between the central processing unit and an operator. The interface includes a device for understanding and interpreting vocal instructions from an operator and translating them into machine understandable instructions. The central processing unit includes a device for controlling or regulating at least one of the peripheral hardware units, or to provide status related information in vocal form as a response to said vocal instructions.
    Type: Grant
    Filed: March 1, 2002
    Date of Patent: July 1, 2003
    Assignee: DeLaval Holding AB
    Inventors: Lars Käll, Jan Eriksson