Patents by Inventor Birgit Trotzki

Birgit Trotzki 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).

  • Patent number: 6872310
    Abstract: In a particularly noise-free and vibration-free operating precoated filter for filtering for example cooling lubricating flowing media, a filter candle surrounding a riser channel is mounted by means of a riser tube in a separating plate in an axially moveable manner. A filter cake adhering to the outside of the filter candle is loosened in such a manner that for example a disk-shaped rotary body comprises a shoulder between the track end and the track start along its track. As soon as a head end piece connected to the riser tube and moveable in an axial manner against the force of a spring is released from the rotating track end, the stored force of the spring accelerates the filter candle, so that the filter cake adhering to the filter candles is loosened by the acceleration of the filter candle and the impact pulse when a dampening ring arranged between the filter candle and the separating plate abuts the separating plate.
    Type: Grant
    Filed: March 2, 2001
    Date of Patent: March 29, 2005
    Assignee: Boll & Kirch Filderbzu GmbH
    Inventors: Birgit Trotzki, Sivagnanam Kandiah, RĂ¼diger Lennartz, Stefan Schmitz
  • Publication number: 20020158002
    Abstract: In a particularly noise-free and vibration-free operating precoated filter for filtering for example cooling lubricating means, a filter candle 12 surrounding a riser channel 16 is mounted by means of a riser tube 15 in a separating plate 5 in an axially moveable manner. A filter cake adhering to the outside of the filter candle 12 is loosened in such a manner that for example a disk-shaped rotary body 40 comprises a shoulder 42 between the track end 43 and the track start 44 along its track 41.
    Type: Application
    Filed: November 5, 2001
    Publication date: October 31, 2002
    Inventors: Birgit Trotzki, Kandiah Sivagnanam, Rudiger Lennartz, Stefan Schmitz
  • Publication number: 20020038783
    Abstract: In a particularly noise-free and vibration-free operating precoated filter for filtering for example cooling lubricating means, a filter candle 12 surrounding a riser channel 16 is mounted by means of a riser tube 15 in a separating plate 5 in an axially moveable manner. A filter cake adhering to the outside of the filter candle 12 is loosened in such a manner that for example a disk-shaped rotary body 40 comprises a shoulder 42 between the track end 43 and the track start 44 along its track 41. As soon as a head end piece 20 connected to the riser tube 15 and moveable in an axial manner against the force of a spring 21 is released from the rotating track end 41, the stored force of the spring 21 accelerates the filter candle 12, so that the filter cake adhering to the filter candles is loosened by the acceleration of the filter candle 12 and the impact pulse when a dampening ring arranged between the filter candle 12 and the separating plate 5 abuts the separating plate.
    Type: Application
    Filed: November 2, 2001
    Publication date: April 4, 2002
    Inventors: Birgit Trotzki, Sivagnanam Kandiah, Rudlger Lennartz, Stefan Schmitz