Patents by Inventor Martin Katz

Martin Katz 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).

  • Publication number: 20250140881
    Abstract: A tank system for a fuel cell system comprises a tank which extends along a longitudinal axis for receiving gas, in particular hydrogen, comprising an outer circumferential surface which encloses the longitudinal axis along a circumferential direction; a strip-shaped cooling device which is thermally coupled to the tank and comprises at least one Peltier element, wherein the cooling device is arranged on the outer circumferential surface of the tank and extends along the circumferential direction of the tank; and a securing element which encloses the outer circumferential surface of the tank in the circumferential direction and presses the cooling device against the outer circumferential surface of the tank.
    Type: Application
    Filed: January 10, 2023
    Publication date: May 1, 2025
    Inventors: Jochen Wessner, Martin Katz
  • Publication number: 20240274844
    Abstract: The invention relates to a fuel cell system comprising a fuel cell assembly with at least one fuel cell, a fuel inlet, a fuel outlet, a supply line which is connected to the fuel inlet for supplying gaseous fuel, a discharge line which is connected to the fuel outlet for discharging excess fuel, a recirculation line which connects the discharge line and the supply line, a recirculation compressor which is arranged in the recirculation line and which is designed to generate a fluid flow of the excess fuel from the discharge line to the supply line, said fluid having a speed component in a circumferential direction of the recirculation line, and a water separator which is arranged between the recirculation compressor and the supply line and which comprises a receiving chamber arranged on the exterior of the recirculation line with respect to the radial direction and which is connected to the recirculation line via at least one discharge opening formed in the recirculation line in order to receive liquid constit
    Type: Application
    Filed: May 18, 2022
    Publication date: August 15, 2024
    Inventors: Jochen Wessner, Martin Katz
  • Publication number: 20240243306
    Abstract: The invention relates to a conveying device (1) for a fuel cell system (31) for conveying and/or recirculating a gaseous medium, in particular hydrogen, comprising: a side channel compressor (2), the conveying device (1) being driven at least partially by means of a metering valve (6) having a propulsion jet (12) of a pressurized gaseous medium, and the pressurized gaseous medium being fed to the side channel compressor (2) at least indirectly by means of the metering valve (6); a compressor chamber (30) which extends around an axis of rotation (23) in the housing (17) and has at least one circumferential side channel (19); an impeller (14) which is located in the housing (17), is rotatable about the axis of rotation (23) and is driven by the drive (10), the side channel compressor (2) having a housing (17) with a gas inlet opening (20) formed on the housing (17) and a gas outlet opening (22), which are fluidically connected to one another via the compressor chamber (30), in particular the at least one first
    Type: Application
    Filed: April 27, 2022
    Publication date: July 18, 2024
    Inventors: Martin Katz, Benedikt Leibssle, Jochen Wessner
  • Publication number: 20240178415
    Abstract: The invention relates to a device (1) for separating and collecting water from a gas stream, comprising a water separator (2), configured as a riser, and a water tank (3) which is arranged below the water separator (2), wherein the water separator (2) has, at its lower end, an outlet (4) which opens into the water tank (3), a lateral gas inlet (5), and a gas outlet (6) which is arranged at its upper end. The invention also relates to a fuel cell system (20) with a corresponding device (1) and to a method for operating a fuel cell system (20).
    Type: Application
    Filed: March 22, 2022
    Publication date: May 30, 2024
    Inventors: Martin Katz, Wolfgang Sander
  • Publication number: 20230402626
    Abstract: The invention relates to a fuel cell system (1) comprising a fuel cell stack (2) with a cathode (3), to which air can be fed as cathode gas via a cathode gas path (4), an air compressor (5) being integrated in the cathode gas path (4). According to the invention, the cathode gas path (4) branches downstream of the air compressor (5) into a main path (4.1), which can be connected to an inlet (6) of the fuel cell stack (2), and into a secondary path (4.2), which can be connected to an outlet (7) of the fuel cell stack (2), wherein the main path (4.1) and the secondary path (4.2) can each be shut off individually or together with the aid of a shut off device (8). The invention also relates to a method for operating a fuel cell system (1).
    Type: Application
    Filed: October 1, 2021
    Publication date: December 14, 2023
    Inventors: Jochen Wessner, Martin Katz
  • Publication number: 20230113619
    Abstract: The invention relates to a bearing arrangement for a shaft in a turbocompressor having at least one water-fed hydraulic bearing, which is configured to support for rotation an axle of the turbocompressor, wherein the water-fed hydraulic bearing encloses the shaft at a circumference of the shaft to form a bearing gap therebetween; and wherein the water-fed hydraulic bearing is configured to allow water to flow through the bearing gap to support the shaft hydraulically; and two seals, which are designed to seal the bearing gap against the shaft; and wherein gas from the turbocompressor is applied to the two seals outside the bearing gap to seal the bearing.
    Type: Application
    Filed: March 9, 2021
    Publication date: April 13, 2023
    Inventors: Jochen Wessner, Martin Katz
  • Patent number: 10704515
    Abstract: The invention relates to a device for metering two different liquid or gaseous fuels, comprising a nozzle element (4) in which a first pressure chamber (6) that can be filled with a first fuel is formed, wherein an outer nozzle needle (10) is received in the pressure chamber in a longitudinally movable manner. The outer nozzle needle (10) is equipped with a second pressure chamber (12) which can be filled with a second fuel and in which an inner nozzle needle (15) is arranged in a longitudinally movable manner, said inner nozzle needle interacting with an inner nozzle seal (16) formed in the outer nozzle needle (10) in older to open and close at least one inner injection opening (17). Furthermore, at least one outer injection opening (13) is provided which can be connected to the first pressure chamber (6), the at least one outer injection opening (13) being formed in the outer nozzle needle (10).
    Type: Grant
    Filed: July 25, 2016
    Date of Patent: July 7, 2020
    Assignee: Robert Bosch GmbH
    Inventors: Jochen Wessner, Martin Katz
  • Publication number: 20190078542
    Abstract: The invention relates to a device for metering two different liquid or gaseous fuels, comprising a nozzle element (4) in which a first pressure chamber (6) that can be filled with a first fuel is formed, wherein an outer nozzle needle (10) is received in the pressure chamber in a longitudinally movable manner. The outer nozzle needle (10) is equipped with a second pressure chamber (12) which can be filled with a second fuel and in which an inner nozzle needle (15) is arranged in a longitudinally movable manner, said inner nozzle needle interacting with an inner nozzle seal (16) formed in the outer nozzle needle (10) in older to open and close at least one inner injection opening (17). Furthermore, at least one outer injection opening (13) is provided which can be connected to the first pressure chamber (6), the at least one outer injection opening (13) being formed in the outer nozzle needle (10).
    Type: Application
    Filed: July 25, 2016
    Publication date: March 14, 2019
    Inventors: Jochen Wessner, Martin Katz
  • Patent number: 8146839
    Abstract: A fuel injection device for an internal combustion engine includes a housing and a valve element which is arranged in the housing. The valve element interacts, in the region of a fuel outlet opening, with a valve seat. The valve element is embodied by at least one first part and at least one second part which are coupled to one another by means of a hydraulic coupler. The hydraulic coupler has a coupling chamber which is delimited at least partially by a sleeve which is guided on the first part of the valve element. Additionally a guide element guides an end region of the first part of the valve element, which end region being oriented toward the second part of the valve element.
    Type: Grant
    Filed: January 12, 2007
    Date of Patent: April 3, 2012
    Assignee: Robert Bosch GmbH
    Inventors: Wolfgang Braun, Dirk Vahle, Martin Katz, Alexander Wernau
  • Patent number: 8136741
    Abstract: Disclosed is a fuel injection device comprising a housing and a valve element disposed therein and cooperating with a valve seat located in the area of at least one fuel discharge port. The valve element is composed of several parts while at least two parts of the valve element are coupled to each other via a hydraulic coupler.
    Type: Grant
    Filed: May 31, 2006
    Date of Patent: March 20, 2012
    Assignee: Robert Bosch GmbH
    Inventors: Juergen Hanneke, Nadja Eisenmenger, Achim Brenk, Lorenz Zerle, Michael Mennicken, Helmut Clauss, Hans-Christoph Magel, Dirk Vahle, Andreas Kellner, Hrvoje Lalic, Joachim Boltz, Falko Bredow, Martin Katz
  • Patent number: 7992810
    Abstract: The invention relates to a fuel injector having a coupler. The reciprocating movement of an actuator is transmitted by the coupler to a pin-shaped injection valve member which is guided into the nozzle body. The coupler has a valve piston and a coupler sleeve, and the valve piston is displaced in the inner diameter area of the coupler sleeve. The inner diameter of the coupler sleeve is greater than the outer diameter of the injection valve member. The difference between the inner diameter of the coupler housing and the outer diameter of the injection valve member is 0.2 mm or less.
    Type: Grant
    Filed: December 28, 2007
    Date of Patent: August 9, 2011
    Assignee: Robert Bosch GmbH
    Inventors: Andreas Kellner, Holger Rapp, Martin Katz
  • Publication number: 20100090032
    Abstract: The invention relates to a fuel injector having a coupler. The reciprocating movement of an actuator is transmitted by the coupler to a pin-shaped injection valve member which is guided into the nozzle body. The coupler has a valve piston and a coupler sleeve, and the valve piston is displaced in the inner diameter area of the coupler sleeve. The inner diameter of the coupler sleeve is greater than the outer diameter of the injection valve member. The difference between the inner diameter of the coupler housing and the outer diameter of the injection valve member is 0.2 mm or less.
    Type: Application
    Filed: December 28, 2007
    Publication date: April 15, 2010
    Inventors: Andreas Kellner, Holger Rapp, Martin Katz
  • Publication number: 20090184183
    Abstract: A fuel injection device for an internal combustion engine includes a housing and a valve element arranged within the housing. The valve element interacts with a valve seat lying in the region of a fuel outlet opening. It is proposed that at least one control piston and a nozzle needle of the valve element be coupled to one another via a hydraulic coupler. The hydraulic coupler has a coupling space and a non-return valve connected to the coupling space and which opens away therefrom.
    Type: Application
    Filed: April 25, 2007
    Publication date: July 23, 2009
    Inventors: Falko Bredow, Martin Katz
  • Publication number: 20090020632
    Abstract: A fuel injection device for an internal combustion engine includes a housing and a valve element which is arranged in the housing. The valve element interacts, in the region of a fuel outlet opening, with a valve seat. The valve element is embodied by at least one first part and at least one second part which are coupled to one another by means of a hydraulic coupler. The hydraulic coupler has a coupling chamber which is delimited at least partially by a sleeve which is guided on the first part of the valve element. Additionally a guide element guides an end region of the first part of the valve element, which end region being oriented toward the second part of the valve element.
    Type: Application
    Filed: January 12, 2007
    Publication date: January 22, 2009
    Inventors: Wolfgang Braun, Dirk Vahle, Martin Katz, Alexander Wernau
  • Publication number: 20080210787
    Abstract: Disclosed is a fuel injection device comprising a housing and a valve element disposed therein and cooperating with a valve seat located in the area of at least one fuel discharge port. The valve element is composed of several parts while at least two parts of the valve element are coupled to each other via a hydraulic coupler.
    Type: Application
    Filed: May 31, 2006
    Publication date: September 4, 2008
    Inventors: Juergen Hanneke, Nadja Eisenmenger, Achim Brenk, Lorenz Zerle, Michael Mennicken, Helmut Clauss, Hans-Christoph Magel, Dirk Vahle, Andreas Kellner, Hrvoje Lalic, Joachim Boltz, Falko Bredow, Martin Katz
  • Publication number: 20040045407
    Abstract: An appliance for sharpening razor blades of the type held in a blade cartridge comprises a leather strop bonded onto a magnetic substrate that is in turn bonded onto a support. The width of the strop does not exceed the width of the blades in typical cartridges, so that the blades may rest on the strop when the cartridge is stroked over the strop to hone the blade edges. The surface of the strop is proud of the support surface adjacent the strop, to ensure that edges of the cartridge that are typically proud of the blades do not prevent contact of the blades with the strop. The ends of the strop are secured in undercut formations in the holder.
    Type: Application
    Filed: September 11, 2002
    Publication date: March 11, 2004
    Inventor: Roy Martin Katz
  • Patent number: 5726068
    Abstract: A diffusive sampler for effectively determining chemical vapor levels, the ampler having a thin pouch-like container made up of an impermeable back sheet and a selectively permeable front membrane attached thereto along its peripheral edges. The front membrane is made of a material capable of passing preselected vapors therethrough and for preventing other preselected vapors from passing therethrough and preferably has substantially the same permeation rate as human skin. Located within the pouch-like container is an adsorbent substance for adsorbing the chemical vapor and for providing information with respect to the chemical vapor levels adsorbed thereby. In use a plurality of the samplers are adhered to the skin of an individual wearing a protective garment to establish the effectiveness of the garment when subjected to specific chemical vapors.
    Type: Grant
    Filed: January 24, 1996
    Date of Patent: March 10, 1998
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Donald Rivin, Cyrus E. Kendrick, Martin Katz
  • Patent number: 5614301
    Abstract: A chemical protective fabric for use in garments worn by persons in a cheally hostile environment comprises a layer of felted foam impregnated with superactivated carbon, a polyurethane emulsion binder for bonding the superactivated carbon to the foam, a first stretchable material layer bonded to the layer of foam on a first of the major surfaces thereof, and a second stretchable material layer bonded to the layer of foam on a second of the major surfaces thereof.
    Type: Grant
    Filed: April 15, 1995
    Date of Patent: March 25, 1997
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Martin Katz
  • Patent number: 5458890
    Abstract: Flavored food and pharmaceutical compositions include one or more flavor additives incorporated within polymeric particles, usually within an internal pore network defined by individual polymeric particles. The polymeric particles are, in turn, dispersed within and/or over a surface of an orally-deliverable matrix material, which is usually a solid or semi-solid substrate. In the case of chewable compositions, the flavor additives will be released into the orally-deliverable matrix material as the composition is chewed and held in the mouth, thus prolonging the flavor of the composition. In the case of dried powders and mixes, the flavor will typically be made available as the product is consumed or be released into the matrix material as the composition is further processed. When two flavors are combined with the polymeric particles, the relative amounts of the additives can be selected to provide simultaneous release and exhaustion of the additives.
    Type: Grant
    Filed: June 4, 1991
    Date of Patent: October 17, 1995
    Assignee: Advanced Polymer Systems, Inc.
    Inventors: John H. Williford, Martin Katz, Sergio Nacht, Chung-Heng Cheng, Rajesh A. Patel, Brian J. Picard
  • Patent number: 5156843
    Abstract: Intersticed materials, including woven and nonwoven fabrics, open-cellular materials and the like, are impregnated with functional substances by incorporating the substances in microscopic porous particles in which the pores form an interconnected network open to the particles in the interstices of the materials. The functional substances thus impart useful properties to the material in a controlled release manner.
    Type: Grant
    Filed: March 20, 1989
    Date of Patent: October 20, 1992
    Assignee: Advanced Polymer Systems, Inc.
    Inventors: Helen C. Leong, Martin Katz, Chung-Heng Cheng