Patents Assigned to Doctro A.V.V.
  • Assembly of filtering apparatus and replaceable filter; and filtering apparatus and filter for use therein
    Patent number: 5674381
    Abstract: A filtering apparatus and replaceable filter assembly including an electronic filter identification system having an electronic label on the filter and a read-out mechanism on the filtering apparatus. The read-out mechanism is connected to a control unit of the filtering apparatus and the control unit is influenced by the read-out mechanism. The control unit may be actuable only upon disposing a filter in the filtering apparatus having a proper or predetermined electronic label. The filter identification system may also be interactive. The electronic label on the filter includes a read/write memory which can store the number of operating hours of the filter.
    Type: Grant
    Filed: November 29, 1995
    Date of Patent: October 7, 1997
    Assignee: Doctro A.V.V.
    Inventor: Dirk Jan Marinus Den Dekker
  • Assembly of filtering apparatus and replaceable filter; and filtering apparatus and filter for use therein
    Patent number: RE39361
    Abstract: A filtering apparatus and replaceable filter assembly including an electronic filter identification system having an electronic label on the filter and a read-out mechanism on the filtering apparatus. The read-out mechanism is connected to a control unit of the filtering apparatus and the control unit is influenced by the read-out mechanism. The control unit may be actuable only upon disposing a filter in the filtering apparatus having a proper or predetermined electronic label. The filter identification system may also be interactive. The electronic label on the filter includes a read/write memory which can store the number of operating hours of the filter.
    Type: Grant
    Filed: March 29, 1994
    Date of Patent: October 24, 2006
    Assignee: Doctro A.V.V.
    Inventor: Dirk Jan Marinus Den Dekker