Patents by Inventor Bengt-Goran Bengtsson

Bengt-Goran Bengtsson 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: 6976364
    Abstract: The temperature of a flowing material, such as coating and filling materials, is regulated by having it pass through a metal block that is cooled or heated by adjacent thermoelectric elements. A temperature regulator uses, as inputs, a desired material temperature (T—ref) as well as one or more of a set of temperature signals including temperature signals measured at the inlet and outlet to the block, and internally within a cooling arrangement adjacent to the block. The temperature of the material downstream from the regulator, that is, the temperature to be regulated, is either measured directly or is estimated as a function of the other measured and input signals.
    Type: Grant
    Filed: February 26, 2004
    Date of Patent: December 20, 2005
    Assignee: Advanced Flow Control AFC AB
    Inventor: Bengt-Göran Bengtsson
  • Publication number: 20040089234
    Abstract: A system for spraying an at least substantially fluid material has a source providing a controllable flow of the material to be sprayed; a dosing unit that receives the flow of material from the source, that holds a quantity of the material in a reservoir, and that outputs the material to a dispensing device; and a control arrangement that has as an input signal an indication of a fill level of the reservoir and that outputs a flow control signal to the source such that the fill level in the reservoir is maintained less than a maximum level and greater than a minimum level when the dispensing device is active. The dosing unit thereby forms an active accumulator able to both receive material from the source and deliver material to the dispensing device at the same time.
    Type: Application
    Filed: November 6, 2003
    Publication date: May 13, 2004
    Inventors: Soren Hagglund, Bengt-Goran Bengtsson
  • Patent number: 5182704
    Abstract: In a device for accomplishing a method of regulating the spraying of coating material such as paint, the coating material is fed by a pump (1) to a spray device (2). A flow transducer (4), which generates a true flow signal (Q.sub.A), a pressure transducer (6), which generates a true pressure signal (P.sub.A), and an actuator (5), which sets the pressure of the coating material in accordance with the control pressure signal (P.sub.C), are provided in the supply line between the pump and the spray device. A co-efficient signal (K) is formed by an estimator (8) as a function of the true flow signal (Q.sub.A) and a chosen set-point flow signal (Q.sub.R). An adaptor (7) determines a set-point pressure signal (P.sub.R) as a function of the set-point flow signal and the co-efficient signal. A pressure regulation circuit (9) determines the control pressure signal (P.sub.C) as a function of the set-point pressure signal and the true pressure signal.
    Type: Grant
    Filed: December 24, 1990
    Date of Patent: January 26, 1993
    Assignee: Advanced Flow Control AFC Aktiebolag
    Inventor: Bengt-Goran Bengtsson