Patents by Inventor Bernd Buchholz

Bernd Buchholz 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: 11925289
    Abstract: A method, and apparatus for implementing the method, for adjusting a dispensing temperature of a hot beverage by an automatic beverage maker. The temperature of the hot beverage and/or the water supplied to a brewing unit for producing the hot beverage is measured. The measured temperature is compared with a desired value and the temperature of the hot beverage is adjusted to the desired value by cooling. The hot beverage or the water supplied to the brewing unit for producing the hot beverage is cooled directly via a machine-controlled addition of cold water. The temperature is adapted to the desired value by an amount of cold water supplied by the machine-controlled addition of cold water. The temperature is adapted by a controllable metering valve that meters the amount of added cold water.
    Type: Grant
    Filed: May 16, 2019
    Date of Patent: March 12, 2024
    Assignee: MELITTA PROFESSIONAL COFFEE SOLUTIONS GMBH & CO. KG
    Inventors: Bernd Buchholz, Thomas Diester
  • Publication number: 20240049902
    Abstract: A beverage preparation device for preparing instant beverages has a conveyor system, a mixing chamber, at least one pump, at least one heat exchanger, at least one valve and a control device. The mixing chamber has at least two flush-in connections arranged at a distance from one another in the direction of a chamber axis of the mixing chamber. The mixing chamber has chamber sections arranged one behind the other, with inner diameters decreasing from the inlet to the outlet of the mixing chamber. The chamber sections are all formed with conical inner surfaces and the mixing chamber comprises a free of mixer/mixing wheels, asymmetrical structure with a first chamber and a second chamber arranged one behind the other. A chamber axis of the first chamber and a chamber axis of the second chamber are offset from one another and thus arranged eccentrically from one another.
    Type: Application
    Filed: January 21, 2022
    Publication date: February 15, 2024
    Applicant: Melitta Professional Coffee Solutions GmbH & Co. KG
    Inventors: Dominik RINNE, Dennis THIELEMANN, Bernd BUCHHOLZ
  • Publication number: 20240016331
    Abstract: A brewing unit is formed with a brewing slide as a brewing chamber, a filling tray, a machine frame with two base plates, two piston units as a shower screen and a plunger, and at least one drive motor, wherein the brewing unit is adjustable into four brewing unit positions, wherein the second brewing unit position forms a first filling position of the brewing unit for the supply of coffee powder or cleaning agents, and wherein the second brewing unit position forms a first filling position of the brewing unit for the supply of coffee powder or cleaning agents. The brewing unit has at least one second filling position for the supply of coffee powder or cleaning agents in the brewing unit position. A coffee piston machine and a process for filling a brewing unit are created.
    Type: Application
    Filed: November 17, 2021
    Publication date: January 18, 2024
    Applicant: Melitta Professional Coffee Solutions GmbH & Co. KG
    Inventors: Armin HENSEL, Kai HALLMANN, Bernd BUCHHOLZ
  • Patent number: 11849878
    Abstract: A brewing unit for a piston coffee machine is designed as a spindle brewing unit with an outer spindle and inner spindle, and with a brewing slide as a brewing chamber, two piston units in the form of a showerhead and a plunger, a drive motor, and at least one gearing mechanism.
    Type: Grant
    Filed: July 8, 2020
    Date of Patent: December 26, 2023
    Assignee: MELITTA PROFESSIONAL COFFEE SOLUTIONS GMBH & CO. KG
    Inventors: Armin Hensel, Dirk Meyer, Bernd Buchholz
  • Publication number: 20230355038
    Abstract: A grinder for grinding coffee beans has a first grinding disk carrier having a first grinding disk; a second grinding disk carrier having a second grinding disk; and a drive unit, by means of which at least one of the two grinding disks is rotatably operated. At least the grinding disk of the two grinding disks that is rotatably operated by means of the drive unit is directly or indirectly coupled to the drive unit by means of a central interlocking connection, the central interlocking connection being in the form of a continuous shaft-hub connection for direct torque transfer from the drive unit directly or indirectly to the grinding disk.
    Type: Application
    Filed: December 16, 2020
    Publication date: November 9, 2023
    Applicant: Melitta Professional Coffee Solutions GmbH & Co. KG
    Inventors: Armin HENSEL, Bernd BUCHHOLZ
  • Publication number: 20230148796
    Abstract: A grind size adjustment assembly, in particular a telemetric grind size adjustment assembly, has at least one grinder (2) for grinding coffee beans and a grind size adjustment device of the at least one grinder. The grind size adjustment assembly also has at least one remote control unit, which adjusts a grind size of the at least one grinder in operative connection with the grind size adjustment device of the at least one grinder.
    Type: Application
    Filed: April 1, 2021
    Publication date: May 18, 2023
    Applicant: Melitta Professional Coffee Solutions GmbH & Co. KG
    Inventors: Kai HALLMANN, Armin HENSEL, Bernd BUCHHOLZ
  • Publication number: 20230125039
    Abstract: A grind size adjustment assembly has at least one coffee machine with at least one grinder for grinding coffee beans. The at least one grinder has a first grinding disc, a second grinding disc and a drive unit, via which at least one of the two grinding discs is rotatably operated, as well as a control unit. The grind size adjustment assembly also has at least one server, wherein the at least one grinder has at least one sensor unit. A coffee machine is provided. A method for grind size adjustment in a grind size adjustment assembly and a method for telemetrically adjusting the grind size in a grind size adjustment assembly are also provided.
    Type: Application
    Filed: April 1, 2021
    Publication date: April 20, 2023
    Applicant: Melitta Professional Coffee Solutions GmbH & Co. KG
    Inventors: Kai HALLMANN, Armin HENSEL, Bernd BUCHHOLZ
  • Publication number: 20220257045
    Abstract: A grinder for grinding coffee beans having a first grinding tool and a second grinding tool forming a grinding nip, and the second grinding tool being rotatable relative to the first grinding tool. The grinder has at least one force generation device for applying a selectable force F to a first grinding tool or a second grinding tool, which force can be transmitted to the coffee beans. A coffee machine having such a grinder and a method for preparing coffee using said type of coffee machine and said type of grinder.
    Type: Application
    Filed: August 10, 2020
    Publication date: August 18, 2022
    Applicant: Melitta Professional Coffee Solutions GmbH & Co. KG
    Inventors: Armin HENSEL, Bernd BUCHHOLZ
  • Publication number: 20220225814
    Abstract: A brewing unit for a piston coffee machine is designed as a spindle brewing unit with an outer spindle and inner spindle, and with a brewing slide as a brewing chamber, two piston units in the form of a showerhead and a plunger, a drive motor, and at least one gearing mechanism.
    Type: Application
    Filed: July 8, 2020
    Publication date: July 21, 2022
    Applicant: Melitta Professional Coffee Solutions GmbH & Co. KG
    Inventors: Armin HENSEL, Dirk MEYER, Bernd BUCHHOLZ
  • Publication number: 20210321817
    Abstract: A method for operating an apparatus for providing a milk-air emulsion. The apparatus includes: a milk line through which milk flows, a mixing chamber disposed in the milk line, an air feed system having an adjusting unit responsive to a control variable for setting an amount of air injected into the mixing chamber for producing the milk-air emulsion, a measuring unit for determining a physical material property of the milk-air emulsion, and a control and evaluation unit to set the control variable. In a first operating mode an amount of air, controlled by the adjusting unit, is introduced into the mixing chamber to produce the air-milk emulsion which is thereafter is dispensed. In a second operating mode a self-adjustment is performed in which the control and evaluation unit creates a data set as a function of the physical material property of the milk-air emulsion and generates the control variable based on the data set that is input to the adjusting unit.
    Type: Application
    Filed: August 20, 2019
    Publication date: October 21, 2021
    Applicant: Melitta Professional Coffee Solutions GmbH & Co. KG
    Inventors: Thomas DIESTER, Bernd BUCHHOLZ
  • Publication number: 20210235934
    Abstract: The invention relates to a grinder for grinding coffee beans. The grinder has a first grinding tool and a second grinding tool which form a grinding gap and are rotatable relative to each other to grind coffee beans in the gap. A force generation device is arranged for applying a force, which is adjustable during operation, to one or both of the first grinding tool and second grinding tool, which force is transferable to the coffee beans. The invention also relates to a method for grinding coffee beans with the grinder for preparing a hot beverage.
    Type: Application
    Filed: June 27, 2019
    Publication date: August 5, 2021
    Applicant: MELITTA PROFESSIONAL COFFEE SOLUTIONS GMBH & CO. KG
    Inventors: Armin HENSEL, Bernd BUCHHOLZ, Dirk MEYER
  • Publication number: 20210186258
    Abstract: A method, and apparatus for implementing the method, for adjusting a dispensing temperature of a hot beverage by an automatic beverage maker The temperature of the hot beverage and/or the water supplied to a brewing unit for producing the hot beverage is measured. The measured temperature is compared with a desired value and the temperature of the hot beverage is adjusted to the desired value by cooling. The hot beverage or the water supplied to the brewing unit for producing the hot beverage is cooled directly via a machine-controlled addition of cold water. The temperature is adapted to the desired value by an amount of cold water supplied by the machine-controlled addition of cold water. The temperature is adapted by a controllable metering valve that meters the amount of added cold water.
    Type: Application
    Filed: May 16, 2019
    Publication date: June 24, 2021
    Applicant: MELITTA PROFESSIONAL COFFEE SOLUTIONS GMBH & CO. KG
    Inventors: Bernd BUCHHOLZ, Thomas DIESTER
  • Publication number: 20210177193
    Abstract: A method for producing a hot beverage by an apparatus from water and a raw material in a brewing unit includes determining, by a measuring unit, an actual value of a physical material property and/or a physical variable dependent on the physical material property, and optionally a process property of the hot beverage, and comparing, with a control and/or regulating unit, the actual value and a set point value of the physical material property and/or the physical variable and optionally the process property. The control and/or regulating unit uses a data memory in which data records of set point values and/or set point value ranges are stored according to a temperature and/or a desired hot beverage type. If the actual value is outside the set point value range, a control and/or manipulated variable is adjusted by the control and/or regulating unit such that the physical material property of the hot beverage is influenced in a controlled or regulated manner.
    Type: Application
    Filed: July 1, 2019
    Publication date: June 17, 2021
    Applicant: MELITTA PROFESSIONAL COFFEE SOLUTIONS GMBH & CO. KG
    Inventors: Thomas DIESTER, Bernd BUCHHOLZ, Patrick WILKE
  • Publication number: 20210085124
    Abstract: A machine for preparing a hot beverage, comprising: a boiler for producing hotwater; a brewing unit installed downstream of the boiler; and at least one collection vessel installed downstream of the brewing unit, from which collection vessel a prepared hot beverage can be conducted, in particular through an outlet conduit, to at least one dispensing device in order to dispense the hot beverage when the dispensing device is opened. At least one liquid pump is adapted for conveying liquid from the at least one collection vessel towards the at least one dispensing device and for conveying liquid in the opposite direction.
    Type: Application
    Filed: April 11, 2019
    Publication date: March 25, 2021
    Applicant: MELITTA PROFESSIONAL COFFEE SOLUTIONS GMBH & CO. KG
    Inventors: Bernd BUCHHOLZ, Kai HALLMANN, Jens SCHMALKUCHE
  • Patent number: 10687654
    Abstract: A method for operating an automatic beverage dispenser, such as a coffee machine provided with a control panel by using a mobile device with a communication unit. A communication link is automatically established between the beverage dispenser and the mobile device. A data set representing a user personalized recipe is transmitted from the mobile device to the coffee machine which temporarily stores the dataset. The personalized recipe is displayed as a selection option on the control panel of the beverage dispenser. Preparation of the beverage is triggered by selecting the desired personalized recipe in response to which a personalized beverage is dispensed by the beverage dispenser.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: June 23, 2020
    Assignee: MELITTA PROFESSIONAL COFFEE SOLUTIONS GMBH & CO. KG
    Inventors: Bernd Buchholz, Jürgen Nagel
  • Patent number: 10568455
    Abstract: A method for producing different types of milk-air emulsions with a milk-air emulsion generating device, comprising: producing the milk-air emulsions in dependence on at least one determined physical material characteristic of the milk-air emulsion.
    Type: Grant
    Filed: June 13, 2017
    Date of Patent: February 25, 2020
    Assignee: MELITTA PROFESSIONAL COFFEE SOLUTIONS GMBH & CO. KG
    Inventors: Bernd Buchholz, Thomas Diester
  • Publication number: 20180035839
    Abstract: A method for operating an automatic beverage dispenser, such as a coffee machine provided with a control panel by using a mobile device with a communication unit. A communication link is automatically established between the beverage dispenser and the mobile device. A data set representing a user personalized recipe is transmitted from the mobile device to the coffee machine which temporarily stores the dataset. The personalized recipe is displayed as a selection option on the control panel of the beverage dispenser. Preparation of the beverage is triggered by selecting the desired personalized recipe in response to which a personalized beverage is dispensed by the beverage dispenser.
    Type: Application
    Filed: July 31, 2017
    Publication date: February 8, 2018
    Applicant: MELITTA PROFESSIONAL COFFEE SOLUTIONS GMBH & CO. KG
    Inventors: Bernd BUCHHOLZ, Jürgen NAGEL
  • Publication number: 20170367525
    Abstract: A method for producing different types of milk-air emulsions with a milk-air emulsion generating device, comprising: producing the milk-air emulsions in dependence on at least one determined physical material characteristic of the milk-air emulsion.
    Type: Application
    Filed: June 13, 2017
    Publication date: December 28, 2017
    Applicant: MELITTA PROFESSIONAL COFFEE SOLUTIONS GMBH & CO. KG
    Inventors: Bernd BUCHHOLZ, Thomas DIESTER
  • Patent number: 9807975
    Abstract: A device for processing milk foam for use in an automatic hot and/or cold beverage machine includes a milk pump to pump the milk foam, and a secondary processing device coupled to the milk foam pump to change the consistency of the milk foam. The secondary processing device includes a homogenizer to break up and distribute air bubbles in the milk foam. The homogenizer has a reducing region including a plurality of impact bodies arranged to define a channel labyrinth through which the milk foam is flowable. Additionally, there is provided a process for homogenizing milk foam utilizing the above device, includes steps of a) impacting divided partial flows of the milk foam with the impact surfaces to divide the air bubbles of the milk foam; and b) mixing the divided partial flows with the divided air bubbles together to form new partial flows.
    Type: Grant
    Filed: April 29, 2014
    Date of Patent: November 7, 2017
    Assignee: MELITTA PROFESSIONAL COFFEE SOLUTIONS GMBH & CO. KG
    Inventors: Bernd Buchholz, Thomas Diester
  • Patent number: 9668452
    Abstract: A process for producing milk foam includes pumping milk through a milk line with a milk pump having an adjustable speed for adjusting the capacity of the milk pump. Milk from the milk line and air are mixed inside a first mixing chamber to produce a milk foam. Properties of the milk foam, including a consistency of the milk foam, are a function of the speed of the milk pump. A device for producing the milk foam includes a milk container; an outlet; a milk line connected between the milk container and the outlet; a first mixing chamber installed in the milk line to mix milk and air to produce milk foam; and a milk pump having an adjustable speed coupled into the milk line.
    Type: Grant
    Filed: April 29, 2014
    Date of Patent: June 6, 2017
    Assignee: MELITTA PROFESSIONAL COFFEE SOLUTIONS GMBH & CO. KG
    Inventors: Bernd Buchholz, Thomas Diester