Patents by Inventor Markus Heidt

Markus Heidt 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: 11950743
    Abstract: A dishwasher (1), in particular a commercial dishwasher (1), which is in the form of a box-type dishwasher and has a treatment chamber (2) which can be closed and in which washware can be treated in accordance with a predefined or predefinable treatment program, wherein a washware detector apparatus (51) is designed to detect the type of washware to be, wherein the washware detector apparatus (51) has an optical identification system, which is oriented toward the washware to be treated, and an evaluation device, wherein the optical identification system is designed to record at least a portion of the light reflected by the washware to be treated as a reflection image, and wherein the evaluation device is designed to automatically distinguish between different types of washware on the basis of the recorded reflection image, wherein the extent of the reflection provides information about the type of washware.
    Type: Grant
    Filed: November 5, 2018
    Date of Patent: April 9, 2024
    Assignee: ILLINOIS TOOL WORKS INC.
    Inventors: Harald Disch, Björn S. Himmelsbach, Markus Heidt, Verena Wiedenhöfer
  • Patent number: 10835098
    Abstract: A flight-type dishwasher or rack conveyor dishwasher has a conveyor apparatus (20) for conveying washware through individual treatment zones (11, 12, 13, 14, 15) of the conveyor dishwasher (1). The conveyor dishwasher (1) has a detection system (30) designed to detect the presence of washware or a washware carrier (7) in a predefined region (A) at an inlet (10) or at a feed (16) of the conveyor dishwasher (1). A control device (50) is designed to actuate the conveyor apparatus (20) such that the conveyor apparatus (20) is activated when washware or a washware carrier (7) is detected in the region (A) at the inlet (10) or feed (16) of the conveyor dishwasher (1), and that the conveyor apparatus (20) is deactivated when no washware or no washware carrier (7) is detected in the region (A) at the inlet (10) or feed (16) of the conveyor dishwasher (1).
    Type: Grant
    Filed: July 22, 2016
    Date of Patent: November 17, 2020
    Assignee: ILLINOIS TOOL WORKS INC.
    Inventors: Harald Disch, Philipp Klumpp, Markus Heidt
  • Publication number: 20200281440
    Abstract: A dishwasher (1), in particular a commercial dishwasher (1), which is in the form of a box-type dishwasher and has a treatment chamber (2) which can be closed and in which washware can be treated in accordance with a predefined or predefinable treatment program, wherein a washware detector apparatus (51) is designed to detect the type of washware to be, wherein the washware detector apparatus (51) has an optical identification system, which is oriented toward the washware to be treated, and an evaluation device, wherein the optical identification system is designed to record at least a portion of the light reflected by the washware to be treated as a reflection image, and wherein the evaluation device is designed to automatically distinguish between different types of washware on the basis of the recorded reflection image, wherein the extent of the reflection provides information about the type of washware.
    Type: Application
    Filed: November 5, 2018
    Publication date: September 10, 2020
    Inventors: Harald DISCH, Björn S. HIMMELSBACH, Markus HEIDT, Verena WIEDENHÖFER
  • Patent number: 10610081
    Abstract: A dishwasher, in particular a commercial single-tank dishwasher or commercial multi-tank dishwasher, for washing washware includes a liquid transportation line (100) with at least one supply line for supplying liquid at a first temperature and comprising at least one discharge line for discharging liquid at a second temperature. The supply line and the discharge line run coaxially in relation to one another, so that either the supply line or the discharge line forms an internal line (10) which runs in the direction of extent of the liquid transportation line (100) within the respectively other supply line or discharge line which for its part forms an external line (20), and thereby form a countercurrent heat exchanger.
    Type: Grant
    Filed: August 27, 2015
    Date of Patent: April 7, 2020
    Assignee: ILLINOIS TOOL WORKS INC.
    Inventors: Harald Disch, Philipp Klumpp, Markus Heidt, Norbert Litterst
  • Publication number: 20180213999
    Abstract: A flight-type dishwasher or rack conveyor dishwasher has a conveyor apparatus (20) for conveying washware through individual treatment zones (11, 12, 13, 14, 15) of the conveyor dishwasher (1). The conveyor dishwasher (1) has a detection system (30) designed to detect the presence of washware or a washware carrier (7) in a predefined region (A) at an inlet (10) or at a feed (16) of the conveyor dishwasher (1). A control device (50) is designed to actuate the conveyor apparatus (20) such that the conveyor apparatus (20) is activated when washware or a washware carrier (7) is detected in the region (A) at the inlet (10) or feed (16) of the conveyor dishwasher (1), and that the conveyor apparatus (20) is deactivated when no washware or no washware carrier (7) is detected in the region (A) at the inlet (10) or feed (16) of the conveyor dishwasher (1).
    Type: Application
    Filed: July 22, 2016
    Publication date: August 2, 2018
    Inventors: Harald Disch, Philipp Klumpp, Markus Heidt
  • Publication number: 20180140163
    Abstract: A box-type dishwasher (1) has a treatment chamber (2), a wash system and a drying device (50). The drying device (50) has a sorption unit (51), having a reversibly dehydratable drying material (52), and at least one fan (53) for forming an air circuit, such that an air stream is directed through the sorption unit (51) and then supplied to the treatment chamber (2) again. The sorption unit (51) has a housing (54), which encloses at least some of the drying material (52) and has at least one outer wall (55). A device (56) is designed so that the air stream is divided up into a first air sub-stream (57a), at least some of which is directed through the drying material (52), and a second air sub-stream (57b), which is not directed through the drying material (52) and is used for thermally insulating or cooling the sorption unit (51).
    Type: Application
    Filed: April 7, 2016
    Publication date: May 24, 2018
    Inventors: Markus Heidt, Jurgen Schemel
  • Publication number: 20170209020
    Abstract: A dishwasher, in particular a commercial single-tank dishwasher or commercial multi-tank dishwasher, for washing washware includes a liquid transportation line (100) with at least one supply line for supplying liquid at a first temperature and comprising at least one discharge line for discharging liquid at a second temperature, wherein the supply line and the discharge line run coaxially in relation to one another, so that either the supply line or the discharge line forms an internal line (10) which runs in the direction of extent of the liquid transportation line (100) within the respectively other supply line or discharge line which for its part forms an external line (20), and thereby form a countercurrent heat exchanger.
    Type: Application
    Filed: August 27, 2015
    Publication date: July 27, 2017
    Inventors: Harald Disch, Philipp Klumpp, Markus Heidt, Norbert Litterst
  • Patent number: 8881750
    Abstract: A dishwasher has a wash system with a nozzle system with at least one wash nozzle for spraying wash liquid, a wash tank, and a wash pump by means of which wash liquid collected in the wash tank is fed to the at least one wash nozzle. A dirt-collecting system has at least one tank-covering screen to separate off particles of dirt from the wash liquid. The dirt-collecting system also has a dirt-collecting region arranged in the wash system and is intended for collecting the particles of dirt which have been separated off from the wash liquid with the aid of the tank-covering screen, wherein the dirt-collecting region is open at the top, but closed all the way around the sides, and wherein there is also a dirt-discharging pipe system by means of which the particles of dirt collected in the dirt-collecting region are discharged from the wash system.
    Type: Grant
    Filed: August 17, 2010
    Date of Patent: November 11, 2014
    Assignee: PREMARK FEG L.L.C.
    Inventors: Harry Braun, Harald Disch, Markus Heidt
  • Publication number: 20120199166
    Abstract: A dishwasher has a wash system with a nozzle system with at least one wash nozzle for spraying wash liquid, a wash tank for collecting at least some of the sprayed wash liquid, and a wash pump by means of which wash liquid collected in the wash tank is fed to the at least one wash nozzle. A dirt-collecting system has at least one tank-covering screen, in order to separate off particles of dirt from the wash liquid which has been sprayed and flowed back into the wash tank under gravitational force.
    Type: Application
    Filed: August 17, 2010
    Publication date: August 9, 2012
    Applicant: PREMARK FEG L.L.C.
    Inventors: Harry Braun, Harald Disch, Markus Heidt
  • Patent number: 7892359
    Abstract: A dishwasher in the form of a programmable machine, in particular a commercial dishwasher, having a pre-cleaning station, which is disposed outside a treatment chamber of the dishwasher, and having a waste water transfer system, by which washing liquid can be fed from a wash tank of the dishwasher as pre-cleaning liquid to the pre-cleaning station.
    Type: Grant
    Filed: December 15, 2008
    Date of Patent: February 22, 2011
    Assignee: Premark FEG L.L.C.
    Inventors: Dietrich Berner, Harald Disch, Markus Heidt
  • Publication number: 20110005557
    Abstract: A method, and related dishwasher, for cleaning wash ware that provides a wash phase followed by a rinse phase, in which rinse fluid is conducted into a treatment chamber (2) of the dishwasher (1). The rinse phase is composed of a fresh-water rinse phase and a steam rinse phase. During the fresh-water rinse phase, a rinse liquid is sprayed into the treatment chamber (2). During the steam rinse phase, steam is generated and conducted into the treatment chamber (2). A total of 0.5 to 2.0 litres of rinse fluid per unit area of 500 mm×500 mm, which is enclosed by the wall of the treatment chamber (2) in a top view of the treatment chamber, and preferably 1.0 to 1.7 litres of rinse liquid per unit area of 500 mm×500 mm, which is enclosed by the wall of the treatment chamber (2) in a top view of the treatment chamber, is sprayed into the treatment chamber (2) during the fresh-water rinse phase.
    Type: Application
    Filed: March 3, 2009
    Publication date: January 13, 2011
    Applicant: PREMARK FEG L.L.C.
    Inventors: Harry Braun, Harald Disch, Markus Heidt, Klaus Padtberg
  • Publication number: 20090159097
    Abstract: A dishwasher in the form of a programmable machine, in particular a commercial dishwasher, having a pre-cleaning station, which is disposed outside a treatment chamber of the dishwasher, and having a waste water transfer system, by which washing liquid can be fed from a wash tank of the dishwasher as pre-cleaning liquid to the pre-cleaning station.
    Type: Application
    Filed: December 15, 2008
    Publication date: June 25, 2009
    Inventors: Dietrich Berner, Harald Disch, Markus Heidt