Patents by Inventor Michael A. Kaufmann

Michael A. Kaufmann 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: 9358489
    Abstract: A filter (1) for filtering air, in particular an air filtering element (30), is provided for releasably fitting into a housing (10) which has a housing upper part (11) and in particular a central tube (20) fastened to the housing upper part (11), and also the housing for the filtering element (30) is provided. The filtering element has a seal (33, 34) for holding the filtering element (1) on the housing upper part (11) and the central tube (20) and for sealing the space (111) between the filtering element (30) and housing upper part (11) when the filtering element (30) is releasably fitted in the housing (10). The seal (33, 34) is connectable in a form-fitting manner to a sealing receptacle (111) of the housing upper part (11) and/or of the central tube (20).
    Type: Grant
    Filed: December 16, 2013
    Date of Patent: June 7, 2016
    Assignee: MANN+HUMMEK GMBH
    Inventors: Michael Kaufmann, Klaus-Dieter Ruhland
  • Patent number: 9314721
    Abstract: A filter system has a housing with a housing wall and at least one cover. An inlet is arranged on the housing and feeds a liquid to be filtered into the housing. An outlet is arranged on the housing and discharges the liquid that has been filtered from the housing. At least one filter element is arranged between the inlet and the outlet and separates a raw side of the filter system from a clean side of the filter system. A gasket is arranged between a sealing surface of the housing wall and a sealing surface of the cover. The gasket is held in position in a longitudinal direction of the housing by at least one retaining element that is arranged on the cover or on the housing wall.
    Type: Grant
    Filed: September 2, 2014
    Date of Patent: April 19, 2016
    Assignee: MANN + HUMMEL GMBH
    Inventors: Michael Kaufmann, Klaus-Dieter Ruhland
  • Patent number: 9254457
    Abstract: An air filter system, in particular for the intake air of internal combustion engines, is provided.
    Type: Grant
    Filed: December 17, 2013
    Date of Patent: February 9, 2016
    Assignee: MANN+HUMMEL GMBH
    Inventors: Michael Kaufmann, Klaus-Dieter Ruhland
  • Patent number: 9233333
    Abstract: A filter element has a filter body having a longitudinal axis and a concentric shape relative to the longitudinal axis. The filter body has a first end face and a second opposite end face. A first end disk is arranged at the first end face. A second end disk is arranged at the second end face. A support tube concentric to the longitudinal axis extends between the first and second end disks. At least one of the first and second end disks has support knobs arranged in a circular arrangement about the longitudinal axis and extending in axial direction outwardly. The support knobs, when the filter element is mounted in a housing that receives the filter element, rest against an inner cover contour of the housing and fold over in radial direction outwardly so as to be supported axially and radially on the housing.
    Type: Grant
    Filed: February 12, 2014
    Date of Patent: January 12, 2016
    Assignee: MANN+HUMMEL GMBH
    Inventors: Michael Kaufmann, Klaus-Dieter Ruhland
  • Patent number: 9233331
    Abstract: A filter system has a housing and at least one detachable cover detachably connected to the housing to close off the housing. At least one exchangeable element is arranged within the housing and provided with a follower contour. The cover is provided with a follower tool which matches the follower contour of the at least one exchangeable element. The follower tool is disposed on the exterior side of the cover. The follower tool is a follower contour provided on the cover.
    Type: Grant
    Filed: February 11, 2014
    Date of Patent: January 12, 2016
    Assignee: MANN + HUMMEL GMBH
    Inventors: Michael Kaufmann, Klaus-Dieter Ruhland
  • Patent number: 9212636
    Abstract: An air filter has a hollow cylindrical filter housing having a first axial terminal area and a second axial terminal area and a cylindrical outer filter housing wall and a ring-shaped flow guiding wall. The ring-shaped flow guiding wall extends coaxially to the cylindrical outer filter housing wall in the interior of the filter housing. A ring-shaped flow space is formed between outer filter housing wall and flow guiding wall. A filter element of an annularly closed filter medium is disposed in the filter housing. The flow guiding wall surrounds the filter element. An inlet socket is arranged on the outer filter housing wall in the first axial terminal area and extends tangentially relative thereto. The inlet socket has a projection that projects into the ring-shaped flow space and bridges the ring-shaped flow space up to the flow guiding wall.
    Type: Grant
    Filed: October 21, 2013
    Date of Patent: December 15, 2015
    Assignee: MANN+HUMMEL GMBH
    Inventors: Michael Kaufmann, Klaus-Dieter Ruhland
  • Patent number: 9205358
    Abstract: A filter element has a filter body with a longitudinal axis, the filter body having a first end face and a second end face opposite the first end face. A first end plate is arranged at the first end face and has an open or closed configuration. A second end plate is arranged at the second end face. A support tube is arranged concentrically to the longitudinal axis and extends between the first and second end plates. The first end plate is reinforced by a reinforcement ring. The reinforcement ring has first openings that are visible from the exterior of the reinforcement ring, wherein the first openings enable a filling level check of a filling level of a material that connects the first end plate with the first end face.
    Type: Grant
    Filed: February 12, 2014
    Date of Patent: December 8, 2015
    Assignee: MANN+HUMMEL GMBH
    Inventors: Michael Kaufmann, Klaus-Dieter Ruhland, Friedrich Kupfer, Joachim-Paul Krieger, Anita Moosmueller
  • Patent number: 9205360
    Abstract: A filter element, in particular an air filter element, for a detachable insertion into a housing with a detachable housing cover is provided. The air filter element has a tubular support structure, at which a filter medium is disposed. A coupling section couples with a clamping device, clamping the filter element in the housing. The coupling section includes a fixing element blocking a rotation of the coupling section or the support structure in relation to the clamping device.
    Type: Grant
    Filed: June 15, 2012
    Date of Patent: December 8, 2015
    Assignee: Mann + Hummel GmbH
    Inventors: Michael Kaufmann, Klaus-Dieter Ruhland
  • Patent number: 9194725
    Abstract: A sensor mounting for a distance sensor includes a fixing part for attaching to a vehicle, and a receiving part attached to the fixing part in an adjustable manner in order to receive the distance sensor. The receiving part is adjustable into at least two different angular positions on the fixing part.
    Type: Grant
    Filed: July 21, 2011
    Date of Patent: November 24, 2015
    Assignee: WABCO GmbH
    Inventors: Michael Kaufmann, Rainer Risse, Udo Ronnenberg, Axel Stender, Arne Stephan
  • Patent number: 9108137
    Abstract: A filter arrangement has a filter receptacle and a round filter element arranged in the filter receptacle. The filter receptacle has a substantially cylindrical housing part with a cylindrical wall. An inflow opening is arranged in the cylindrical wall. An inflow socket is connected to the inflow opening and adapted to couple a fluid supply line. An axial outflow opening is connected to the cylindrical housing part. The inflow socket has a flow cross-section that widens in a flow direction into an interior of the cylindrical housing part.
    Type: Grant
    Filed: August 28, 2013
    Date of Patent: August 18, 2015
    Assignee: MANN+HUMMEL GMBH
    Inventors: Michael Kaufmann, Klaus-Dieter Ruhland
  • Publication number: 20150176544
    Abstract: A filter housing for receiving a filter element is provided with a first housing part having a first housing opening and a second housing opening. A second housing part is connected to the first housing part. A first connecting socket is arranged at the first housing opening of the first housing part. A second connecting socket is arranged at the second housing opening of the first housing part. A receiving space is provided in an interior of the filter housing between the first and second housing openings, wherein the receiving space accommodates the filter element.
    Type: Application
    Filed: December 11, 2014
    Publication date: June 25, 2015
    Inventors: Michael Kaufmann, Klaus-Dieter Ruhland, Karlheinz Muenkel, Manfred Winter
  • Publication number: 20150174084
    Abstract: A chemically stable liquid medication that contains diphenhydramine hydrochloride and has a pH of greater than about 4.5. The liquid medication contains less than about 1.5% of BZH based on parent DPH after 14 days at 75° C. according to the Stability Prediction Method. The liquid medication is adapted for consumption by adults and children 12 years and over.
    Type: Application
    Filed: December 19, 2014
    Publication date: June 25, 2015
    Inventors: Allyn Michael Kaufmann, Roger William Krummen, Ashraf Traboulsi, Thomas Edward Huetter
  • Publication number: 20150082982
    Abstract: The invention relates to a filter element (10), comprising a filter body (12) having a longitudinal axis (L), a first open or closed end disc (16) arranged at an end face (15), and a second end disc (18) arranged at the opposite end face (17), said second end disc (18) comprising a coupling element (24) which, when installed in a female housing (108), cooperates with a flow guide element (122) mounted on a cover (110) of the housing (108), whereby the filter element (10) is axially guided. The invention further relates to a filter system (100) for removable installation of such a filter element (10).
    Type: Application
    Filed: September 2, 2014
    Publication date: March 26, 2015
    Inventors: Klaus-Dieter Ruhland, Michael Kaufmann
  • Patent number: 8985237
    Abstract: A power screwdriver is disclosed, having a drive for driving a tool spindle having a controller for controlling the drive, having a monitoring device for monitoring the rotation speed or the torque, and having a monitoring device for monitoring a switch-off criterion, which monitoring device is coupled to the controller, in order to switch off the drive when the switch-off criterion is reached, with the controller being programmed such that (a) the drive is first of all accelerated until the rotation speed has reached a specific first rotation speed; (b) if the rotation speed then falls by at least a specific amount within a specific time increment, or the torque rises by at least a specific amount within a specific time increment, the drive is braked until the rotation speed has reached a specific second rotation speed, which is lower than the first rotation speed; (c) the drive is then regulated at the second rotation speed for a specific time; and (d) after step (c), the drive is accelerated again at most
    Type: Grant
    Filed: June 17, 2011
    Date of Patent: March 24, 2015
    Assignee: C. & E. Fein GmbH
    Inventor: Michael Kaufmann
  • Publication number: 20150059297
    Abstract: A filter system for intake air of an internal combustion engine has a housing with a cover. A filter element is arranged in the housing. An inlet feeds a medium to be filtered into the housing and an outlet discharges the medium from the housing. The filter element has a filter body with first end face and opposite second end face. The filter element has an open first end plate at the first end face and a second end plate at the second end face. A support tube is arranged concentrically about a longitudinal axis in the housing and attached with a first end to the housing. The support tube is arranged in the interior of the filter element and radially supports the filter body. The second end plate rests on the second end of the support tube and on an inner cover contour of the cover with anti-rotation action.
    Type: Application
    Filed: September 2, 2014
    Publication date: March 5, 2015
    Inventors: Klaus-Dieter Ruhland, Michael Kaufmann
  • Publication number: 20150059584
    Abstract: A filter system has a housing with a housing wall and at least one lid. An inlet socket is arranged at the housing and feeds a fluid to be filtered into the housing. An outlet socket is arranged at the housing and discharges the fluid that has been filtered from the housing. A sensor socket is arranged at an end section of the housing. The sensor socket is arranged angularly relative to a longitudinal axis of the housing at the outlet socket.
    Type: Application
    Filed: September 2, 2014
    Publication date: March 5, 2015
    Inventors: Oliver Steins, Klaus-Dieter Ruhland, Michael Kaufmann
  • Publication number: 20150059296
    Abstract: A filter element has a filter body having a longitudinal axis, wherein the filter body has a first end with a first end face and a second end with a second end face opposite the first end in direction of the longitudinal axis. The filter body is provided with inner and outer circumferential surfaces permeable for a medium to be filtered. A first end disk is arranged at the first end face and a second end disk is arranged at the second end face. The outer circumferential surface of the filter body has at least one fluid-tight area that is impermeable for the medium to be filtered. The fluid-tight area is an incoming flow protector or an improper handling protector resting on the outer circumferential surface.
    Type: Application
    Filed: September 1, 2014
    Publication date: March 5, 2015
    Inventors: Michael Kaufmann, Klaus-Dieter Ruhland
  • Publication number: 20150060351
    Abstract: A filter system has a housing with a housing wall and at least one cover. An inlet is arranged on the housing and feeds a liquid to be filtered into the housing. An outlet is arranged on the housing and discharges the liquid that has been filtered from the housing. At least one filter element is arranged between the inlet and the outlet and separates a raw side of the filter system from a clean side of the filter system. A gasket is arranged between a sealing surface of the housing wall and a sealing surface of the cover. The gasket is held in position in a longitudinal direction of the housing by at least one retaining element that is arranged on the cover or on the housing wall.
    Type: Application
    Filed: September 2, 2014
    Publication date: March 5, 2015
    Inventors: Michael Kaufmann, Klaus-Dieter Ruhland
  • Publication number: 20150059304
    Abstract: A filter element has a filter body with a first end face and a second end face opposite the second end face in a direction of a longitudinal axis of the filter body. A first open end plate is arranged at the first end face. A second closed end plate is arranged at the second end face. The second end plate has a sealing structure and the sealing structure is adapted to seal, when the filter element is installed in a housing, a region between the second end plate and a cover of the housing relative to an interior space of the housing. The sealing structure is a ring surrounding an outside circumference of the second end plate and has a sealing surface directed in radial direction outwardly.
    Type: Application
    Filed: September 1, 2014
    Publication date: March 5, 2015
    Inventors: Michael Kaufmann, Klaus-Dieter Ruhland
  • Publication number: 20150059301
    Abstract: A filter system is provided with a housing having a housing wall and a cover, the housing having a longitudinal axis. An inlet is arranged on the housing and feeds a fluid to be filtered into the housing. An outlet is arranged on the housing and discharges the filtered fluid. Filter elements each having at least one filter medium are arranged in the housing. At least one of the filter elements extends along the longitudinal axis. The filter medium has pleats extending along the longitudinal axis with outer and inner pleat edges. The outer pleat edges extend on the first side of the filter medium and the inner pleat edges on the second side of the filter medium and are opposite the outer pleat edges. The filter medium has a variable flow resistance along the longitudinal axis.
    Type: Application
    Filed: September 1, 2014
    Publication date: March 5, 2015
    Inventors: Michael Kaufmann, Klaus-Dieter Ruhland, Imre Marton