Patents Assigned to Straintec AG
  • Patent number: 8397334
    Abstract: A device for cleaning a container, a tank or a silo, is provided with a cleaning unit suspended by rope sections and between winding units comprising a wound supply of rope. By changing the length of the sections by the winding devices under control of a controller the cleaning unit can be lifted and lowered, tilted and pressed against the inside wall of said container.
    Type: Grant
    Filed: December 2, 2008
    Date of Patent: March 19, 2013
    Assignee: Straintec AG
    Inventor: Martin Ryffel
  • Publication number: 20090144917
    Abstract: A device for cleaning a container, a tank or a silo, is provided with a cleaning unit suspended by rope sections and between winding units comprising a wound supply of rope. By changing the length of the sections by the winding devices under control of a controller the cleaning unit can be lifted and lowered, tilted and pressed against the inside wall of said container.
    Type: Application
    Filed: December 2, 2008
    Publication date: June 11, 2009
    Applicant: Straintec AG
    Inventor: Martin Ryffel
  • Patent number: 5284062
    Abstract: The sensor which is adapted to e inserted into a bore includes a cylinder-shaped body made of an elastomeric material and four resistive wire strains are uniformly distributed around its circumference. This body of an elastic material can be pressed together by means of tensioning members. This causes a deformation of the body in radial direction, such that the resistive wire strains are pressed against the wall of the bore and contact same in a force-locked manner. At the same time, the sensor is held arrested in the bore. Accordingly, an elongation of the structural member is directly transmitted onto the resistive wire strains, such that errors in the signal transmission are avoided.
    Type: Grant
    Filed: March 12, 1992
    Date of Patent: February 8, 1994
    Assignee: Straintec AG
    Inventor: Martin Ryffel