Patents by Inventor Uwe Pfeiffer

Uwe Pfeiffer 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).

  • Pressure reducer
    Patent number: 8141580
    Abstract: A pressure reducer for fluid lines, with a sealing piston (70, 110) as stop element, with an equalization piston (20a, 190) as a means for pressure equalization, with a single-part or multi-part connecting means (20b, 90, 200) by which the sealing piston (70, 110) and the equalization piston (20a, 190) are rigidly connected with one another, with a valve seat, in conjunction of which the sealing piston (70, 110) defines a flow-through opening, against which the sealing piston (17, 110) seals when the valve is closed and which the connecting means (20b, 90, 200) penetrates, and with guide means (20c, 210) which are directly or indirectly rigidly coupled with the connecting means and guide an arrangement composed of at least the equalization piston (20a, 190), connecting means (20b, 90, 200) and sealing piston (70, 110) in each operating position, wherein the guide means (20c, 210) are arranged in the region of the valve seat between the sealing piston (70, 110) and the equalization piston (20a, 190).
    Type: Grant
    Filed: November 25, 2008
    Date of Patent: March 27, 2012
    Assignee: Honeywell Technologies SARL
    Inventor: Uwe Pfeiffer
  • PRESSURE REDUCER
    Publication number: 20090145495
    Abstract: A pressure reducer for fluid lines, with a sealing piston (70, 110) as stop element, with an equalization piston (20a, 190) as a means for pressure equalization, with a single-part or multi-part connecting means (20b, 90, 200) by which the sealing piston (70, 110) and the equalization piston (20a, 190) are rigidly connected with one another, with a valve seat, in conjunction of which the sealing piston (70, 110) defines a flow-through opening, against which the sealing piston (17, 110) seals when the valve is closed and which the connecting means (20b, 90, 200) penetrates, and with guide means (20c, 210) which are directly or indirectly rigidly coupled with the connecting means and guide an arrangement composed of at least the equalization piston (20a, 190), connecting means (20b, 90, 200) and sealing piston (70, 110) in each operating position, wherein the guide means (20c, 210) are arranged in the region of the valve seat between the sealing piston (70, 110) and the equalization piston (20a, 190).
    Type: Application
    Filed: November 25, 2008
    Publication date: June 11, 2009
    Applicant: HONEYWELL TECHNOLOGIES SARL
    Inventor: Uwe Pfeiffer