Patents by Inventor Hermann Grether

Hermann Grether 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: 7871023
    Abstract: A flow regulator, jet regulator or backflow preventer (11) having at least two components or parts (2, 11), a first one (2) of which can be inserted into a receiving opening (12) of the second part (12). The two parts (2, 11) can be interconnected using a locking arrangement (13, 17). One part is provided with at least one locking cam while the other part (11) is provided with a locking groove which is assigned to the locking cam and is used as a counterpart. One of the parts is provided with a slot (15) or similar recess located at a distance (a) from the outer or inner circumference of the part (2) in the area of the at least one locking groove.
    Type: Grant
    Filed: January 24, 2006
    Date of Patent: January 18, 2011
    Assignee: Neoperl GmbH
    Inventor: Hermann Grether
  • Publication number: 20110006132
    Abstract: A sanitary outlet fitting with a liquid guide which opens into an outlet fitting, in the region of which an insertable cartridge is provided. The liquid guide is matched in at least the mouth region of the outlet fitting to the insertable cartridge. The insertable cartridge is held in the outlet fitting by a sleeve-shaped intermediate holder, which is held in the outlet fitting in a radially sealed manner. A peripheral edge region on the admission side of the insertable cartridge is held in an axially sealed manner in the outlet fitting. The insertable cartridge is inserted with the aid of the intermediate holder supporting it into the outlet fitting to a depth such that the insertable cartridge is held securely. Accordingly, the insertable cartridge is scaled axially in its peripheral region on the admission side. The intermediate holder can also be held in a radially sealed manner in the outlet fitting to prevent undesired creepage.
    Type: Application
    Filed: October 11, 2008
    Publication date: January 13, 2011
    Applicant: Neoperl GmbH
    Inventor: Hermann Grether
  • Publication number: 20100282869
    Abstract: A water outlet for a low pressure sanitary outlet fitting has a perforated structure which is air-permeable counter to the water outlet direction and, in the unpressurized state, holds water in the outlet direction, and has a plurality of throughflow holes. At least one bypass is provided, which bypasses the perforated structure and has an opening cross section which is larger than the throughflow holes. A bypass valve is movable from a closed position into an open position counter to a resetting force as a consequence of an increase in pressure on the inflow side. If a hot water tank connected upstream of the water outlet fitting increasingly contracts as the heated water therein cools, air can nevertheless be sucked in via the perforated structure and the pressure can be equalized. If excessive pressures builds up with the heating of the water in the hot water tank, the bypass valve moves from a closed position into an open position counter to a resetting force.
    Type: Application
    Filed: April 24, 2008
    Publication date: November 11, 2010
    Inventor: Hermann Grether
  • Patent number: 7757969
    Abstract: A jet regulator (1) having a jet fractionating device (2) which distributes the incoming water flow into a plurality of individual jets is provided. The jet regulator (1) has at least one individual jet, from the individual jets formed by the fractionating device, which impacts on a node point (3) of a criss-crossing grid of bars (4, 5) of an outlet side downstream grid network (6). At least one node point (3) is configured as an inlet side recess of the grid network (6) and/or the jet regulator is an aerated jet regulator having a jet regulator housing (7) which includes at least one aeration opening (8) on a periphery of the housing thereof and at least one deflecting projection (9) which is used to maintain the water jet at a distance from the aeration opening that is arranged on the inner periphery of the housing in the direction of flow below the at least one aeration opening (8). The jet regulator (1) provides an improved fractionating of the incoming individual jets.
    Type: Grant
    Filed: December 31, 2005
    Date of Patent: July 20, 2010
    Assignee: Neoperl GmbH
    Inventors: Wolf-Dieter Lacher, Hermann Grether
  • Patent number: 7731107
    Abstract: The invention concerns a sanitary component (1) that has a jet regulating device (4) in the interior of a mounting housing (6). The jet regulating device (4) includes at least one directly-mounted element (5) housed in the mounting housing (6), this element being provided with ridges (11) transverse to the flow direction and defining between them passageways (12). The invention is characterized in that the ridges (11) of at least one directly mounted element (5) are arranged in the form of a grid or network and intersect at junction points. The component (1) according to the invention, which can be manufactured inexpensively, exhibits the best possible jet regulating characteristics, even if the transverse surface is relatively small; moreover, the component (1) according to the invention requires little maintenance, without any risk of malfunction resulting from dirt carried by the liquid flow.
    Type: Grant
    Filed: September 26, 2003
    Date of Patent: June 8, 2010
    Assignee: Neoperl GmbH
    Inventor: Hermann Grether
  • Publication number: 20100065661
    Abstract: A jet aerator (1) having an aerator housing (8) that can be installed in the water discharge of a sanitary outlet fitting, and having a jet splitter (12) in the interior of the housing, dividing the inflowing water flow into a plurality of individual jets, a mixing zone (14) being disposed downstream of the splitter for aerating the individual jets, wherein at least one aerator duct (16) is provided that ends in the mixing zone (14). The jet aerator has a throttle or closing piece (18) for reducing and/or optionally activating or deactivating the aerating function, the throttle or closing piece being displaceable between an open position opening the at least one aerating duct (16) and a throttle or closing position at least partially closing the at least one aerating duct (16) by a rotary and/or sliding movement.
    Type: Application
    Filed: November 30, 2007
    Publication date: March 18, 2010
    Applicant: NEOPERL GMBH
    Inventors: Hermann Grether, Alexander Stein, Daniel Oechsle, Christoph Weis
  • Patent number: 7661608
    Abstract: The present invention relates to a jet regulator (1) having a jet fractionating device inside a mounting housing (6). The jet regulator (1) according to the present invention is characterized in that the mounting housing (6) is divided into at least two housing parts (7, 8), and that the housing parts (7, 8) can be connected to one another, and that a housing part (7) at the flow inlet side is connected fixedly and non-releasably with the jet fractionating device (2). The jet regulator (1) according to the present invention is distinguished by a high degree of shape stability and by manufacturing costs that are nonetheless low, even for small housing diameters (see FIG. 1).
    Type: Grant
    Filed: September 26, 2003
    Date of Patent: February 16, 2010
    Assignee: Neoperl GmbH
    Inventor: Hermann Grether
  • Publication number: 20100025499
    Abstract: The invention relates to a sanitary installation element (101) which is arranged in a water line. The installation element (101) according to the invention comprises a mixing device (4) with at least one throttling or closing element (5), which throttling or closing element (5) can be moved under the pressure of the inflowing water from a mixing or open position into a throttling or closed position against a restoring force, wherein the mixing device (4) offers a relatively large clear flow cross section when the at least one throttling or closing element (5) in the mixing or open position, and, by contrast thereto, a reduced clear flow cross section when the at least one throttling or closing element (5) is in the throttling or closed position. The installation element according to the invention is distinguished in that it always offers an optimum flow cross section both in low and high pressure ranges.
    Type: Application
    Filed: November 29, 2007
    Publication date: February 4, 2010
    Applicant: NEOPERL GMBH
    Inventors: Uwe Zoller, Christoph Weis, Hermann Grether
  • Patent number: 7644876
    Abstract: A turning tool (5?) for turning a jet regulator, a nozzle, an intermediate holder, a flow regulator, a non-return valve or a similar plumbing fitting (5) is provided. The fitting (5), on the outlet side, is detachably held on a plumbing water outlet armature (2) by a threaded connection or a bayonet connection, whereby the turning tool (5?) can be placed on the plumbing fitting (5) in a rotationally fixed manner. The turning tool is characterized in that the turning tool is also provided in the form of a plumbing fitting or as a component of a plumbing fitting, that he turning tool (5?) can be placed in a rotationally fixed manner on an outer or an inner periphery of the fitting (5) that is held on the water outlet armature, and or that he turning tool (5?) has a face profiling or contouring (24, 25) that can be placed in a rotationally fixed manner on a mating profiling or a mating contouring (25, 24) provided on the outlet face of the fitting (5) that is held in the water outlet armature (2).
    Type: Grant
    Filed: August 25, 2003
    Date of Patent: January 12, 2010
    Assignee: Neoperl GmbH
    Inventors: Christoph Weis, Hermann Grether
  • Publication number: 20090224067
    Abstract: A sanitary installation element (1) having at least one bypass or cleaning duct (6) which is assigned a valve in whose open position the at least one bypass or cleaning duct is connected switched on. The installation element (1) according to the invention is characterized in that the installation element (1) has a filter screen (4) with at least one outlet opening (5), which outlet opening (5) has a larger clear opening cross section than the screen openings of the filter screen (4), that the at least one outlet opening (5) opens into the at least one bypass or cleaning duct (6), and that, as seen in the direction of flow, the outlet opening (5) is arranged in front of at least one liquid-conveying component of at least one functional unit situated in the installation element (1) and, as seen in the direction of flow, the duct outlet of the at least one bypass or cleaning duct (6) is arranged after this component.
    Type: Application
    Filed: November 28, 2007
    Publication date: September 10, 2009
    Applicant: NEOPERL GMBH
    Inventors: Hermann Grether, Manfred Gilcher, Jörg Rudolph, Christoph Weis
  • Patent number: D591403
    Type: Grant
    Filed: November 8, 2006
    Date of Patent: April 28, 2009
    Assignee: Neoperl GmbH
    Inventor: Hermann Grether
  • Patent number: D609784
    Type: Grant
    Filed: August 5, 2009
    Date of Patent: February 9, 2010
    Assignee: Neoperl GmbH
    Inventor: Hermann Grether
  • Patent number: D609785
    Type: Grant
    Filed: September 11, 2009
    Date of Patent: February 9, 2010
    Assignee: Neoperl GmbH
    Inventors: Hermann Grether, Manfred Gilcher
  • Patent number: D609786
    Type: Grant
    Filed: September 11, 2009
    Date of Patent: February 9, 2010
    Assignee: Neoperl GmbH
    Inventors: Hermann Grether, Manfred Gilcher
  • Patent number: D612911
    Type: Grant
    Filed: September 26, 2006
    Date of Patent: March 30, 2010
    Assignee: Neoperl GmbH
    Inventor: Hermann Grether
  • Patent number: D614735
    Type: Grant
    Filed: August 4, 2009
    Date of Patent: April 27, 2010
    Assignee: Neoperl GmbH
    Inventor: Hermann Grether
  • Patent number: D622355
    Type: Grant
    Filed: August 8, 2008
    Date of Patent: August 24, 2010
    Assignee: Neoperl GmbH
    Inventor: Hermann Grether
  • Patent number: D622356
    Type: Grant
    Filed: February 20, 2009
    Date of Patent: August 24, 2010
    Assignee: Neoperl GmbH
    Inventors: Hermann Grether, Gilcher Manfred, Gerhard Blum, Alexander Stein
  • Patent number: D633601
    Type: Grant
    Filed: June 3, 2010
    Date of Patent: March 1, 2011
    Assignee: Neoperl GmbH
    Inventor: Hermann Grether
  • Patent number: D633990
    Type: Grant
    Filed: June 3, 2010
    Date of Patent: March 8, 2011
    Assignee: Neoperl GmbH
    Inventor: Hermann Grether