Patents by Inventor Frank-Thomas Luig

Frank-Thomas Luig 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: 10955058
    Abstract: A diverter valve for a sanitary fitting having a diverter valve housing, a valve body for the targeted supply of a fluid to at least two diverter valve outlets, and a spindle for actuating the valve body. The spindle is biased, so that after cutting the spindle to length, the spindle is displaced from the diverter valve housing by a defined travel. Also a concealed installation body with a corresponding diverter valve as well as a method for mounting a corresponding concealed installation body are provided.
    Type: Grant
    Filed: August 20, 2019
    Date of Patent: March 23, 2021
    Assignee: Grohe AG
    Inventors: Harry Hopfauf, Heiko Langer, Frank-Thomas Luig
  • Patent number: 10947706
    Abstract: A buried installation body for a sanitary fitting having a housing with a receiving space for a functional unit, wherein the housing has a lower shell and an upper shell which are connectable to each other, and a connection body having at least a first connection for a supply line and at least a second connection for a discharge line, wherein the connection body is at least partially arranged in the receiving space of the housing, and wherein the connection body is fastened by the connection of the lower shell with the upper shell in the receiving space.
    Type: Grant
    Filed: July 16, 2019
    Date of Patent: March 16, 2021
    Assignee: Grohe AG
    Inventors: Frank-Thomas Luig, David Mainka, Dajana Lazic, Sebastian Althoff
  • Patent number: 10889971
    Abstract: A flush mounted built-in body for a sanitary fitting, having a mixer with a regulating nut, wherein the regulating nut can be rotated about a rotational axis, a support plate having a hub, a stop ring having a stop supported by the hub of the support plate, and a rotating knob for actuating the mixer. A rotational movement of the rotating knob is limited by the stop of the stop ring and the rotating knob comprises a hollow shaft which couples the rotating knob in a non-rotating manner to the regulating nut and can be adjusted parallel to the rotational axis of the regulating nut.
    Type: Grant
    Filed: July 16, 2019
    Date of Patent: January 12, 2021
    Assignee: Grohe AG
    Inventors: Turgut Kinikarslan, Frank-Thomas Luig, Daniel Berghoff
  • Patent number: 10889968
    Abstract: A flush-mounted box for a fitting body having a housing, including a receiving chamber for the fitting body, the housing having at least one detent area; a fastening frame for fastening the flush-mounted box on a support, the fastening frame including at least one spring element, which may be engaged in the at least one detent area of the housing for fastening the fastening frame to the housing; and at least one clip for securing the at least one spring element in the at least one detent area of the housing.
    Type: Grant
    Filed: July 16, 2019
    Date of Patent: January 12, 2021
    Assignee: Grohe AG
    Inventors: Hartwig Philipps, Thomas Loi, Frank-Thomas Luig
  • Publication number: 20200056723
    Abstract: A valve cartridge for a sanitary fitting having a cartridge housing, a valve stem which is rotatable about an axis of rotation relative to the cartridge housing, a handle for rotating the valve stem, a passage disk with a first passage and a second passage, a control disk rotatable with the valve stem for controlling a liquid flow through the first passage or the second passage of the passage disk, a handle adapter which can be connected to the valve stem for setting a first rotational orientation of the valve stem to the handle in a first position and can be connected to the valve stem for setting a second rotational orientation of the valve stem to the handle in a second position, so that the control of the flow of liquid through the first passage or the second passage can be changed by the control disk.
    Type: Application
    Filed: August 20, 2019
    Publication date: February 20, 2020
    Applicant: Grohe AG
    Inventors: Janik BUCHMUELLER, Turgut KINIKARSLAN, Frank-Thomas LUIG
  • Publication number: 20200056710
    Abstract: A diverter valve for a sanitary fitting having a diverter valve housing, a valve body for the targeted supply of a fluid to at least two diverter valve outlets, and a spindle for actuating the valve body. The spindle is biased, so that after cutting the spindle to length, the spindle is displaced from the diverter valve housing by a defined travel. Also a concealed installation body with a corresponding diverter valve as well as a method for mounting a corresponding concealed installation body are provided.
    Type: Application
    Filed: August 20, 2019
    Publication date: February 20, 2020
    Applicant: Grohe AG
    Inventors: Harry HOPFAUF, Heiko LANGER, Frank-Thomas LUIG
  • Publication number: 20200011035
    Abstract: A flush mounted built-in body for a sanitary fitting, having a mixer with a regulating nut, wherein the regulating nut can be rotated about a rotational axis, a support plate having a hub, a stop ring having a stop supported by the hub of the support plate, and a rotating knob for actuating the mixer. A rotational movement of the rotating knob is limited by the stop of the stop ring and the rotating knob comprises a hollow shaft which couples the rotating knob in a non-rotating manner to the regulating nut and can be adjusted parallel to the rotational axis of the regulating nut.
    Type: Application
    Filed: July 16, 2019
    Publication date: January 9, 2020
    Applicant: Grohe AG
    Inventors: Turgut KINIKARSLAN, Frank-Thomas LUIG, Daniel BERGHOFF
  • Publication number: 20190338499
    Abstract: A flush-mounted box for a fitting body having a housing, including a receiving chamber for the fitting body, the housing having at least one detent area; a fastening frame for fastening the flush-mounted box on a support, the fastening frame including at least one spring element, which may be engaged in the at least one detent area of the housing for fastening the fastening frame to the housing; and at least one clip for securing the at least one spring element in the at least one detent area of the housing.
    Type: Application
    Filed: July 16, 2019
    Publication date: November 7, 2019
    Applicant: Grohe AG
    Inventors: Hartwig PHILIPPS, Thomas LOI, Frank-Thomas LUIG
  • Publication number: 20190338498
    Abstract: A buried installation body for a sanitary fitting having a housing with a receiving space for a functional unit, wherein the housing has a lower shell and an upper shell which are connectable to each other, and a connection body having at least a first connection for a supply line and at least a second connection for a discharge line, wherein the connection body is at least partially arranged in the receiving space of the housing, and wherein the connection body is fastened by the connection of the lower shell with the upper shell in the receiving space.
    Type: Application
    Filed: July 16, 2019
    Publication date: November 7, 2019
    Applicant: Grohe AG
    Inventors: Frank-Thomas LUIG, David MAINKA, Dajana LAZIC, Sebastian ALTHOFF
  • Patent number: 9772048
    Abstract: In a rotary handle for a thermostatically controlled valve, which is arranged on an actuator brought out of a valve housing, having a stop body, which acts together with a stop cam provided on the valve housing. It is provided that the stop body is movable in the rotation direction in such a way that by a relative movement between the stop body and the rotary handle, turning of the rotary handle by a rotation angle greater than 360° is made possible.
    Type: Grant
    Filed: May 11, 2010
    Date of Patent: September 26, 2017
    Assignee: Grohe AG
    Inventors: Frank-Thomas Luig, Kai Huck, Bjoern Riedel
  • Patent number: 9714501
    Abstract: A plumbing fixture at least having a first housing section and a second housing section which are arranged movable to one another, whereby the first housing section together with the second housing section forms an electrical sensor. In particular, an electrically conductive and simultaneously sealing coupling component is provided between the housing sections, whereby further an electrically conductive coupling component is provided between the first housing section and the second housing section and the coupling component comprises an electrically conductive plastic.
    Type: Grant
    Filed: March 7, 2014
    Date of Patent: July 25, 2017
    Assignee: Grohe AG
    Inventors: Hans Dieter Keiter, Achim Mielke, Frank-Thomas Luig, Gunter Gaebel
  • Patent number: 9334635
    Abstract: A faucet having a pull-out sprayer that is attached to a spray hose. The faucet also has a housing with an end region to receive the sprayer and a feedthrough for passage of the sprayer hose through the housing, and at least one first guide for spacing the sprayer hose from an inner wall surface of the feedthrough, the guide being provided at least in an end region.
    Type: Grant
    Filed: June 6, 2013
    Date of Patent: May 10, 2016
    Assignee: Grohe AG
    Inventors: Dieter Keiter, Frank-Thomas Luig, Matthias Schlueter
  • Publication number: 20140250590
    Abstract: A plumbing fixture at least having a first housing section and a second housing section which are arranged movable to one another, whereby the first housing section together with the second housing section forms an electrical sensor. In particular, an electrically conductive and simultaneously sealing coupling component is provided between the housing sections, whereby further an electrically conductive coupling component is provided between the first housing section and the second housing section and the coupling component comprises an electrically conductive plastic.
    Type: Application
    Filed: March 7, 2014
    Publication date: September 11, 2014
    Applicant: Grohe AG
    Inventors: Hans Dieter KEITER, Achim MIELKE, Frank-Thomas LUIG, Gunter GAEBEL
  • Publication number: 20130327853
    Abstract: A faucet having a pull-out sprayer that is attached to a spray hose. The faucet also has a housing with an end region to receive the sprayer and a feedthrough for passage of the sprayer hose through the housing, and at least one first guide for spacing the sprayer hose from an inner wall surface of the feedthrough, the guide being provided at least in an end region.
    Type: Application
    Filed: June 6, 2013
    Publication date: December 12, 2013
    Inventors: Dieter KEITER, Frank-Thomas LUIG, Matthias SCHLUETER
  • Publication number: 20100288844
    Abstract: In a rotary handle for a thermostatically controlled valve, which is arranged on an actuator brought out of a valve housing, having a stop body, which acts together with a stop cam provided on the valve housing. It is provided that the stop body is movable in the rotation direction in such a way that by a relative movement between the stop body and the rotary handle, turning of the rotary handle by a rotation angle greater than 360° is made possible.
    Type: Application
    Filed: May 11, 2010
    Publication date: November 18, 2010
    Inventors: Frank-Thomas LUIG, Kai HUCK, Bjoern RIEDEL
  • Patent number: 6938827
    Abstract: In a mixing valve for cold and hot water with thermostatic control of the mixed-water temperature by a thermostat (4) that is connected with a tubular double valve slide (3a, 3b) that is positioned by a temperature selector (5) and that is held in a housing (1) having at least one cold-water inlet (10), one hot-water inlet (11), and one mixed-water outlet (12), the inlet ports (22 and 23) of the mixing valve of the double valve slide (31, 3b) being oppositely controlled at opposite ends, it is suggested that the double valve slide (3a, 3b) have an annular web (31, 31a, 30b) formed with a smaller-diameter partition sleeve (31) that is axially shiftable at least at its end in a bore (24, 26) and that downstream of the inlet ports (22 and 23) the hot water and cold water each flow through respective passages (301) opening into an annular mixing compartment (302) in the web (30, 30a, 30b), the mixing compartment (302) extending radially through the partition sleeve (31) such that exiting mixed water is directed t
    Type: Grant
    Filed: June 12, 2003
    Date of Patent: September 6, 2005
    Assignee: Rohe Water Technology AG & Co. KG
    Inventors: Frank-Thomas Luig, Kai Huck
  • Publication number: 20050076960
    Abstract: A mixing valve has a housing, hot- and cold-water valves in the housing having respective valve stems rotatable about respective parallel axes, respective drive gears fixed on the stems, respective hot- and cold-water control elements pivotal on the housing, and respective coupling gears each connected to a respective one of the control elements and meshing with a respective one of the drive gears. The coupling gears each have a pair of gear segments of different effective radii, one of the gear segments of each coupling gear meshing with the respective valve drive gear and the other gear segment with the respective control element. The radii are such that the coupling gears create a step-down ratio of about 1:1.6.
    Type: Application
    Filed: September 22, 2004
    Publication date: April 14, 2005
    Inventors: Frank-Thomas Luig, Stefan Steinhoff, Thomas Salomon, Stefan Salomon, Karl-Heinz Stuckerjurgen, Jorg Schmidt
  • Publication number: 20040238650
    Abstract: In a mixing valve for cold and hot water with thermostatic control of the mixed-water temperature by a thermostat (4) that is connected with a tubular double valve slide (3a, 3b) that is positioned by a temperature selector (5) and that is held in a housing (1) having at least one cold-water inlet (10), one hot-water inlet (11), and one mixed-water outlet (12), the inlet ports (22 and 23) of the mixing valve of the double valve slide (31, 3b) being oppositely controlled at opposite ends, it is suggested that the double valve slide (3a, 3b) have an annular web (31, 31a, 30b) formed with a smaller-diameter partition sleeve (31) that is axially shiftable at least at its end in a bore (24, 26) and that downstream of the inlet ports (22 and 23) the hot water and cold water each flow through respective passages (301) opening into an annular mixing compartment (302) in the web (30, 30a, 30b), the mixing compartment (302) extending radially through the partition sleeve (31) such that exiting mixed water is directed t
    Type: Application
    Filed: February 23, 2004
    Publication date: December 2, 2004
    Inventors: Frank-Thomas Luig, Kai Huck
  • Patent number: 5947147
    Abstract: A valve has a housing formed with a connection face, an intake port adapted to be connected to a supply of pressurized liquid, an output port, an intake passage extending from the intake port to the connection face, a bore extending from the connection face, an output passage extending from the bore to the output port, and a bleed passage communicating with the atmosphere and opening into the bore. A valve cartridge secured to the connection face is operable to conduct liquid between the intake passage and the bore. A vent valve mounted in the output bore has inner and outer seats and a valve body movable between end positions in each of which it blocks one of the seats. The outer seat lies between the inner seat and the connection face and the output passage opens into the bore between the seats. The bleed passage opens into the bore through the inner seat.
    Type: Grant
    Filed: June 12, 1997
    Date of Patent: September 7, 1999
    Assignee: Friedrich Grohe AG
    Inventors: Werner Gnauert, Frank-Thomas Luig
  • Patent number: 5651504
    Abstract: A plumbing fixture having a valve supplying water under pressure to an output and a hose outlet having an intake end has a vented backflow preventer having a housing separate from the valve and having an inlet port connected to the valve output and an outlet port connected to the hose intake end. A lower check valve in the housing has a lower seat, an upper seat, and a valve body of density greater than water movable between a lower position sitting on and blocking the lower seat and an upper position sitting on and blocking the upper seat. The housing is formed with an inlet passage leading from the inlet port to the lower seat and an outlet passage leading from between the seats to the outlet port. An upper check valve in the housing above the lower check valve has an upper seat above the lower-valve upper seat and a valve body of a density less than water and movable between an upper position sitting on and blocking the upper-valve upper seat and an upper position clear thereof.
    Type: Grant
    Filed: June 15, 1995
    Date of Patent: July 29, 1997
    Assignee: Friedrich Grohe Aktiengesellschaft
    Inventors: Frank-Thomas Luig, Roland Weiss