Patents by Inventor by Sture Aalsaeter, administrator

by Sture Aalsaeter, administrator 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).

  • Centrifugal separator with sensing means
    Patent number: 3986663
    Abstract: A first unit rotating with the centrifugal rotor forms an electric resonance circuit having at least one variable oscillation property; and a sensing member rotating with the rotor is arranged to sense a displacement of an interface formed between two media undergoing centrifugal separation in the rotor, the sensing member acting to change the variable oscillation property of the resonance circuit in response to a sensed displacement. A second unit separate from the rotor comprises means for inductively transferring a signal to the resonance circuit and also includes means for sensing a change of the load by the resonance circuit on the signal transferring means in response to a change of the variable oscillation property of the resonance circuit.
    Type: Grant
    Filed: December 28, 1973
    Date of Patent: October 19, 1976
    Assignee: Alfa-Laval AB
    Inventors: Rolf A. Jonsson, deceased, by Sture Aalsaeter, administrator