Patents by Inventor Leif R. Bohlin

Leif R. Bohlin 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).

  • Rheometer for analyzing the elastic and/or viscous characteristics of gels and liquid systems
    Patent number: 4552012
    Abstract: A rheometer for analyzing the elastic and/or viscous characteristics of gels and liquid systems, comprising a movable member (14), preferably in the form of a rockable disk which, on one side, is in contact with the gel or the liquid system and, on its opposite side, has a device (22) for rocking said disk, and means (25) for measuring the resistance of the gel or the liquid system to such rocking motion of the disk.
    Type: Grant
    Filed: March 15, 1983
    Date of Patent: November 12, 1985
    Inventor: Leif R. Bohlin
  • Apparatus for measuring the swelling or shrinkage of a specimen in a fluid
    Patent number: 4513611
    Abstract: An apparatus for measuring the swelling or shrinkage of a specimen in a fluid consists of a container in which the fluid can be accommodated and which has a lid with a suspension device for the specimen, and a transducer which is affixed to the specimen at a location spaced from the point of suspension, for affecting a sensor connected to a recording equipment. In measuring, the movement of the transducer caused by the swelling or shrinkage of the specimen in the fluid can be continuously recorded.
    Type: Grant
    Filed: August 29, 1983
    Date of Patent: April 30, 1985
    Inventor: Leif R. Bohlin