Patents by Inventor Pierre Colomer

Pierre Colomer 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).

  • Filter with automatic cleaning
    Patent number: 4285353
    Abstract: The invention relates to a filter with automatic cleaning using a hydraulically actuated sprinkling device. According to the invention, a carriage carrying tubes is driven by a hydraulic double-acting actuator. The working chambers of the hydraulic actuator are connected by off-take pipes to the cleaning liquid distributing circuit. Switching members control through the medium of electrically controlled valves the selective entry of the cleaning liquid into the off-take pipes. The device according to the invention can be used in an installation where air filtering is necessary, such as for example an air conditioning installation.
    Type: Grant
    Filed: September 14, 1979
    Date of Patent: August 25, 1981
    Assignee: Interfiltre S.A.
    Inventor: Pierre Colomer
  • Self-cleaning filter device
    Patent number: 4157251
    Abstract: A self-cleaning filter device comprising a traveller adapted to reciprocate along the filters and carrying spray means oriented to spray cleaning liquid on said filters, wherein the traveller is reciprocated by means of a hydraulic motor which is rotated by the cleaning liquid itself.
    Type: Grant
    Filed: January 6, 1978
    Date of Patent: June 5, 1979
    Assignee: Interfiltre, S. A.
    Inventor: Pierre Colomer
  • Filter with automatic cleaning
    Patent number: RE31792
    Abstract: The invention relates to a filter with automatic cleaning using a hydraulically actuated sprinkling device. According to the invention, a carriage carrying tubes is driven by a hydraulic double-acting actuator. The working chambers of the hydraulic actuator are connected by off-take pipes to the cleaning liquid distributing circuit. Switching members control through the medium of electrically controlled valves the selective entry of the cleaning liquid into the off-take pipes. The device according to the invention can be used in an installation where air filtering is necessary, such as for example an air conditioning installation.
    Type: Grant
    Filed: May 28, 1982
    Date of Patent: January 8, 1985
    Assignee: Interfiltre S.A.
    Inventor: Pierre Colomer