Patents by Inventor Peter Buhl

Peter Buhl 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: 7425138
    Abstract: The invention relates to an assembly for use in automation and process measurement technology, comprising an at least two-part compact housing having a sleeve-shaped housing bottom part and housing top part. According to the invention the housing top part and the housing bottom part are each made integrally from a creep-resistant material and have an overlapping region extending in an axial direction, wherein the cross-sectional shape of the housing top part and the housing bottom part is complementary at least in the overlapping region and the housing parts have an oversize relative to one another. The housing top and bottom parts are connected to each other by axial pressing forces with oversize loss in a media-tight manner.
    Type: Grant
    Filed: March 23, 2007
    Date of Patent: September 16, 2008
    Assignee: ifm electronic GmbH
    Inventors: Peter Buhl, Nikola Natterer
  • Publication number: 20080182444
    Abstract: The invention relates to an assembly for use in automation and process measurement technology, comprising an at least two-part compact housing having a sleeve-shaped housing bottom part and housing top part. According to the invention the housing top part and the housing bottom part are each made integrally from a creep-resistant material and have an overlapping region extending in an axial direction, wherein the cross-sectional shape of the housing top part and the housing bottom part is complementary at least in the overlapping region and the housing parts have an oversize relative to one another. The housing top and bottom parts are connected to each other by axial pressing forces with oversize loss in a media-tight manner.
    Type: Application
    Filed: March 23, 2007
    Publication date: July 31, 2008
    Applicant: ifm electronic gmbh
    Inventors: Peter Buhl, Nikola Natterer
  • Patent number: 7363824
    Abstract: A flow sensor for flowing media with a cylindrical housing (2) and with a sensor element located in the housing (2), the housing (2) preferably having an outside thread (3) and being screwable into a union (4) of a pipe (5) or into an opening of a connecting piece (43). The flow sensor (1) has very high measurement accuracy while still being economically producible. There is a lifting body (6) which projects into the flowing medium, the lifting body (6) being movably guided on the housing (2) and depending on the flow (7) of the medium to be monitored, can be moved against the reset force of a reset element which is located between the housing (2) and the lifting body (6), and the sensor element is made as a noncontact proximity switch (18, 20) which produces a signal that is dependent on the position of the lifting body (6).
    Type: Grant
    Filed: June 16, 2005
    Date of Patent: April 29, 2008
    Inventors: Robert Buck, Berthold Schocker, Peter Buhl
  • Publication number: 20080011076
    Abstract: A flow sensor for flowing media with a cylindrical housing (2) and with a sensor element located in the housing (2), the housing (2) preferably having an outside thread (3) and being screwable into a union (4) of a pipe (5) or into an opening of a connecting piece (43). The flow sensor (1) has very high measurement accuracy while still being economically producible. There is a lifting body (6) which projects into the flowing medium, the lifting body (6) being movably guided on the housing (2) and depending on the flow (7) of the medium to be monitored, can be moved against the reset force of a reset element which is located between the housing (2) and the lifting body (6), and the sensor element is made as a noncontact proximity switch (18, 20) which produces a signal that is dependent on the position of the lifting body (6).
    Type: Application
    Filed: June 16, 2005
    Publication date: January 17, 2008
    Applicant: BUCK, ROBERT
    Inventors: Robert Buck, Berthold Schocker, Peter Buhl
  • Patent number: 6471395
    Abstract: A heat transfer monitoring and/or measuring device, especially a flow indicator for media flowing through a pipe (1), tank or fitting, with a sensor housing (2) and with two sensor elements (3, 4), the sensor elements (3, 4) each having a metallic sensor surface (5) which comes into contact with the flowing medium. In the flow indicator, the problem “deposition or formation” of disruptive layers on the sensor surfaces (5) of the sensor elements (3, 4) is solved by the element (3) which is made as a heating element having an electrically conductive protective lead (6) and by the protective lead (6) forming a closed protective circuit which includes the pipe (1), tank, or the fitting, the flowing medium and the sensor element (3).
    Type: Grant
    Filed: February 18, 2000
    Date of Patent: October 29, 2002
    Assignee: ifm electronic GmbH
    Inventors: Peter Buhl, Walter Reichart
  • Patent number: 5848094
    Abstract: Disclosed in a heat transmission monitoring and/or measuring apparatus, namely a flow measurement apparatus, for flowing mediums. It comprises a housing (1), a heating element (2) and a temperature measurement element (3). According to the invention, relatively high sensititivity and relatively high reaction speed is obtained by designing the heating element (2) and temperature measurement element (3) as pins.
    Type: Grant
    Filed: March 14, 1997
    Date of Patent: December 8, 1998
    Assignee: i f m electronic GmbH
    Inventors: Peter Buhl, Clemens Geiger, Walter Reichart
  • Patent number: 5808194
    Abstract: A process for monitoring the flow of flowing media, especially for acquiring the heat transport capacity of the flowing medium, in which a measurement signal of a temperature measurement element influenced by at least one heating element and the medium flowing past it is monitored and in which an output signal is generated when the measurement signal of the temperature measurement element exceeds or falls below a switching point. A reduction of the reaction time of the process for monitoring the flow of flowing media is guaranteed by the heat output of the heating element and/or the location of the switching point changing as a function of the output signal.
    Type: Grant
    Filed: February 28, 1995
    Date of Patent: September 15, 1998
    Assignee: i f m electronic GmbH
    Inventors: Peter Buhl, Jorg Schutze
  • Patent number: 4091853
    Abstract: A screw-locking device has a stamped cup spring with a solid annular core having closely spaced triangular radial ribs top and bottom. The distance from the peaks of the ribs from the center plane of the core continually decreases from the outer rim of the annular spring towards the inner rim.
    Type: Grant
    Filed: April 14, 1976
    Date of Patent: May 30, 1978
    Inventor: Peter Buhl