Patents Assigned to DrM, Dr. Muller AG
  • Method and apparatus for cleaning pressure filters
    Patent number: 4500435
    Abstract: A method for cleaning pressure filters by means of a backwash cleaning gas or liquid supplied into the pressure vessel and impulsively pressed through the filter fabric of filtering elements to remove the filter cake deposited on the filter fabric during the filtering process.
    Type: Grant
    Filed: September 6, 1983
    Date of Patent: February 19, 1985
    Assignee: DrM, Dr. Muller AG
    Inventor: Hans Muller
  • Arrangement for fastening filter candles and filter apparatus provided therewith
    Patent number: 4488965
    Abstract: An arrangement for fastening filter candles and filter apparatus provided therewith includes a collecting pipe which is composed of several T-shaped pipe pieces. Each of the pipe pieces has a substantially horizontal portion and extending therefrom a second portion which has a free end part provided with a groove. Each of the filter candles has an upper part provided with a flange portion which is engageable into the groove to obtain a tight attachment of the filter candle to the collecting pipe.
    Type: Grant
    Filed: July 5, 1983
    Date of Patent: December 18, 1984
    Assignee: DrM, Dr. Muller AG
    Inventors: Hans Muller, Ivo Schumacher