Patents by Inventor Mark MULDERS

Mark MULDERS 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: 11912212
    Abstract: An additive sub-system for a wastewater management system of a vehicle including at least one holding tank and a toilet has a controller, at least one additive dispenser and a pump. The at least one additive dispenser is in fluid communication with the at least one holding tank or the toilet. The pump is associated with each additive dispenser of the at least one additive dispensers. Each pump is controlled by the controller to dispense an additive from the at least one additive dispenser to the at least one holding tank or the toilet.
    Type: Grant
    Filed: November 24, 2020
    Date of Patent: February 27, 2024
    Assignee: Thetford BV
    Inventors: Jacco Van Beek, Joop Van Leeuwen, Tijs Slezak, Wilco Wessels, Ruud Van Den Heijkant, Ronald Van Der Hoeven, Mark Mulders, Tom Kieboom, Didier Van Riel, Mitchell Van De Sande, Dineke Van Duijn
  • Patent number: 11912213
    Abstract: An apparatus for delivering wastewater from a recreational vehicle to a drain includes a housing having an outer wall and an inner wall generally perpendicular or slightly angled to the outer wall. The housing and the inner wall define an inlet chamber above the inner wall and a further chamber below the inner wall. The housing further includes an outlet downwardly extending from the inlet chamber.
    Type: Grant
    Filed: November 24, 2020
    Date of Patent: February 27, 2024
    Assignee: Thetford BV
    Inventors: Jacco Van Beek, Joop Van Leeuwen, Tijs Slezak, Wilco Wessels, Ruud Van Den Heijkant, Ronald Van Der Hoeven, Mark Mulders, Tom Kieboom, Didier Van Riel, Mitchell Van De Sande, Dineke Van Duijn
  • Patent number: 11351935
    Abstract: A wastewater management system 10 includes a black water tank 12 for holding black wastewater and a grey water tank 14 for holding grey wastewater. The system 10 may additionally include a filter 62 for filtering suspended solids from the grey water; a first conduit 64 between the grey water tank 14 and the filter 62; a second conduit 66 between the filter 62 and a toilet 22, and a third conduit 68 between the filter 68 and the black water tank 12, the third conduit 68 associated with a valve 26; and a fourth conduit 69 between the filter 62 and the grey water tank 14, the fourth conduit 69 associated with the valve 26. The system 10 further includes a control sub-system 38 in communication with the valves 26 for controlling valves 26 to deliver filtered grey water to the toilet 22 for flush and to periodically clean the filter 62 of captured solids and deliver the captured solids to the black water tank 12.
    Type: Grant
    Filed: May 1, 2018
    Date of Patent: June 7, 2022
    Assignee: Thetford BV
    Inventors: Jacco Van Beek, Joop Van Leeuwen, Tijs Slezak, Wilco Wessels, Ruud Van Den Heijkant, Ronald Van Der Hoeven, Mark Mulders
  • Publication number: 20210078509
    Abstract: An apparatus for delivering wastewater from a recreational vehicle to a drain includes a housing having an outer wall and an inner wall generally perpendicular or slightly angled to the outer wall. The housing and the inner wall define an inlet chamber above the inner wall and a further chamber below the inner wall. The housing further includes an outlet downwardly extending from the inlet chamber.
    Type: Application
    Filed: November 24, 2020
    Publication date: March 18, 2021
    Applicant: THETFORD BV
    Inventors: Jacco VAN BEEK, Joop VAN LEEUWEN, Tijs SLEZAK, Wilco WESSELS, Ruud VAN DEN HEIJKANT, Ronald VAN DER HOEVEN, Mark MULDERS, Tom KIEBOOM, Didier VAN RIEL, Mitchell VAN DE SANDE, Dineke VAN DUIJN
  • Publication number: 20210078507
    Abstract: A toilet sub-system of a wastewater management vehicle includes a toilet and a housing. The housing is associated with the toilet and includes a macerator pumping arrangement having a macerator and a pump. The macerator includes a plurality of macerating knives. The pump is an air pump providing positive pressure in a macerator chamber to pump waste from the macerator chamber. The sub-system further includes at least one motor for driving the pumps and the macerator. The macerator pumping arrangement is operative in a macerating mode and a pumping mode, such that in the macerating mode the first motor first drives the macerating knives to macerate the waste and subsequently in the pumping mode the waste is pumped out of the macerating chamber by positive pressure.
    Type: Application
    Filed: November 24, 2020
    Publication date: March 18, 2021
    Applicant: THETFORD BV
    Inventors: Jacco VAN BEEK, Joop VAN LEEUWEN, Tijs SLEZAK, Wilco WESSELS, Ruud VAN DEN HEIJKANT, Ronald VAN DER HOEVEN, Mark MULDERS, Tom KIEBOOM, Didier VAN RIEL, Mitchell VAN DE SANDE, Dineke VAN DUIJN
  • Publication number: 20210078508
    Abstract: An additive sub-system for a wastewater management system of a vehicle including at least one holding tank and a toilet has a controller, at least one additive dispenser and a pump. The at least one additive dispenser is in fluid communication with the at least one holding tank or the toilet. The pump is associated with each additive dispenser of the at least one additive dispensers. Each pump is controlled by the controller to dispense an additive from the at least one additive dispenser to the at least one holding tank or the toilet.
    Type: Application
    Filed: November 24, 2020
    Publication date: March 18, 2021
    Applicant: THETFORD BV
    Inventors: Jacco VAN BEEK, Joop VAN LEEUWEN, Tijs SLEZAK, Wilco WESSELS, Ruud VAN DEN HEIJKANT, Ronald VAN DER HOEVEN, Mark MULDERS, Tom KIEBOOM, Didier VAN RIEL, Mitchell VAN DE SANDE, Dineke VAN DUIJN
  • Publication number: 20180354432
    Abstract: A wastewater management system 10 includes a black water tank 12 for holding black wastewater and a grey water tank 14 for holding grey wastewater. The system 10 may additionally include a filter 62 for filtering suspended solids from the grey water; a first conduit 64 between the grey water tank 14 and the filter 62; a second conduit 66 between the filter 62 and a toilet 22, and a third conduit 68 between the filter 68 and the black water tank 12, the third conduit 68 associated with a valve 26; and a fourth conduit 69 between the filter 62 and the grey water tank 14, the fourth conduit 69 associated with the valve 26. The system 10 further includes a control sub-system 38 in communication with the valves 26 for controlling valves 26 to deliver filtered grey water to the toilet 22 for flush and to periodically clean the filter 62 of captured solids and deliver the captured solids to the black water tank 12.
    Type: Application
    Filed: May 1, 2018
    Publication date: December 13, 2018
    Inventors: Jacco VAN BEEK, Joop VAN LEEUWEN, Tijs SLEZAK, Wilco WESSELS, Ruud VAN DEN HEIJKANT, Ronald VAN DER HOEVEN, Mark MULDERS
  • Patent number: 9387878
    Abstract: A target-travel-path generating circuit calculates a target travel path along which a controlled object can travel in the future from a current controlled object position. An ideal-control-signal calculating circuit calculates a control profile to travel along the target travel path, and a difference calculating circuit calculates a difference between an ideal control magnitude and a current control magnitude. A controller controls an operation system based on a magnitude of the difference to assist a control operation and a control-operation-state of an operator, an environment-state, and a required operation-precision. The operator receives assistance corresponding to the magnitude of the difference from an ideal control state, the control-operation-state, the environment-state, and the required operation-precision. An outputted control-operation assistance control is suitable for conditions that characterize the operator state, the environment, and the controlled object.
    Type: Grant
    Filed: August 13, 2013
    Date of Patent: July 12, 2016
    Assignees: NISSAN MOTOR CO., LTD., DELFT UNIVERSITY OF TECHNOLOTY, ENTROPY CONTROL, INC.
    Inventors: Mark Mulder, David Abbink, Rene Van Paassen, Max Mulder, Frans Van Der Helm, Erwin R. Boer, Yuji Takada
  • Publication number: 20140046503
    Abstract: A target-travel-path generating circuit calculates a target travel path along which a controlled object can travel in the future from a current controlled object position. An ideal-control-signal calculating circuit calculates a control profile to travel along the target travel path, and a difference calculating circuit calculates a difference between an ideal control magnitude and a current control magnitude. A controller controls an operation system based on a magnitude of the difference to assist a control operation and a control-operation-state of an operator, an environment-state, and a required operation-precision. The operator receives assistance corresponding to the magnitude of the difference from an ideal control state, the control-operation-state, the environment-state, and the required operation-precision. An outputted control-operation assistance control is suitable for conditions that characterize the operator state, the environment, and the controlled object.
    Type: Application
    Filed: August 13, 2013
    Publication date: February 13, 2014
    Applicants: Nissan Motor Co., Ltd., Entropy Control, Inc., Delft University of Technology
    Inventors: Mark MULDER, David Abbink, Rene Van Paassen, Max Mulder, Frans Van Der Helm, Erwin R. Boer, Yuji Takada
  • Patent number: 8521367
    Abstract: A target-travel-path generating circuit calculates a target travel path along which the controlled object can travel in the future from the current controlled object position, an ideal-control-signal calculating circuit calculates a control profile ? to travel along the target travel path P, and a difference calculating circuit calculates a difference ? between the ideal control magnitude ? and a current control magnitude ?. An operation system assistance controller controls the operation system based on the magnitude of the calculated difference ? to assist the control operation of the operator, the control-operation-state of the operator, the environment-state, and the required operation-precision.
    Type: Grant
    Filed: September 30, 2008
    Date of Patent: August 27, 2013
    Assignees: Nissan Motor Co., Ltd., Delft University of Technology, Entropy Control, Inc.
    Inventors: Mark Mulder, David Abbink, Rene Van Paassen, Max Mulder, Frans Van Der Helm, Erwin R. Boer, Yuji Takada
  • Publication number: 20110238254
    Abstract: A target-travel-path generating circuit calculates a target travel path along which the controlled object can travel in the future from the current controlled object position, an ideal-control-signal calculating circuit calculates a control profile ? to travel along the target travel path P, and a difference calculating circuit calculates a difference ? between the ideal control magnitude ? and a current control magnitude ?. An operation system assistance controller controls the operation system based on the magnitude of the calculated difference ? to assist the control operation of the operator, the control-operation-state of the operator, the environment-state, and the required operation-precision.
    Type: Application
    Filed: September 30, 2008
    Publication date: September 29, 2011
    Inventors: Mark Mulder, David Abbink, Rene Van Paassen, Max Mulder, Frans Van Der Helm, Erwin R. Boer, Yuji Takada