Patents by Inventor Steven E. Johnson
Steven E. Johnson 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).
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Publication number: 20250376039Abstract: A method and system are provided for deploying a rail connector assembly of a mobile machine onto one or more conductor rails. The rail connector assembly includes a boom assembly connected to a frame of the machine, an arm assembly connected to an end of the boom assembly, and a contactor assembly coupled to an end of the arm assembly. The method includes deploying the boom assembly from a stowed condition to a deployed condition with at least one boom assembly hydraulic actuator, deploying the arm assembly from a stowed condition to a deployed condition with at least one arm assembly hydraulic actuator, and providing hydraulic assist to the at least one arm assembly hydraulic actuator, as a function of a contact relationship of the contactor assembly with one or more conductor rails.Type: ApplicationFiled: May 27, 2025Publication date: December 11, 2025Applicant: Caterpillar Inc.Inventors: Steven E. JOHNSON, Dennis D. RANKIN, Maitreya V. LAGADAPATI, Darshan C. PATEL
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Publication number: 20250376036Abstract: A rail connector assembly for an electrically powered mobile machine includes a boom assembly with a first end and a second end, and an arm assembly movable between a stowed condition and a deployed condition. The arm assembly includes a first end coupled to the boom and a second end. A contactor assembly is coupled to the second end of the arm assembly. The system further includes a hydraulic system controlling movement of the rail connector assembly. The hydraulic system includes a hydraulic power unit, a plurality of hydraulic actuators fluidly driven by the hydraulic power unit, and at least one float valve fluidly connected to at least one of the plurality of hydraulic actuators.Type: ApplicationFiled: May 23, 2025Publication date: December 11, 2025Applicant: Caterpillar Inc.Inventors: Steven E. JOHNSON, Dennis D. RANKIN, Maitreya V. LAGADAPATI, Darshan C. PATEL
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Publication number: 20250376038Abstract: A rail connector assembly for an electrically powered mobile machine includes a boom assembly with a first end and a second end, an arm assembly movable between a stowed condition and a deployed condition, the arm assembly having a first end coupled to the boom, and a second end, and a contactor assembly coupled to the second end of the arm assembly. The assembly also includes a hydraulic system controlling movement of the rail connector assembly. The hydraulic system includes a plurality of hydraulic actuators, wherein a first hydraulic actuators of the plurality of hydraulic actuators includes a mechanical float coupling.Type: ApplicationFiled: May 23, 2025Publication date: December 11, 2025Applicant: Caterpillar Inc.Inventors: Dennis D. RANKIN, Steven E. JOHNSON
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Publication number: 20250108785Abstract: A brake system of a machine may receive stability data associated with multiple wheels of the machine. The brake system may initiate, based on the stability data, an automatic electrohydraulic braking operation associated with a brake that is operatively connected to a wheel, of the multiple wheels. The brake may be movable from a de-applied position to an applied position to apply a brake force to the wheel. The brake system may prevent, based on initiating the automatic electrohydraulic braking operation, an operator input from controlling a brake pressure that is supplied to the brake via a valve configuration of the brake system. The brake system may decrease, based on an electrohydraulic input, the brake pressure that is supplied to the brake, via the valve configuration, to move the brake from the de-applied position to the applied position to apply the brake force to the wheel.Type: ApplicationFiled: September 29, 2023Publication date: April 3, 2025Applicant: Caterpillar Inc.Inventors: Edward W. MATE, Steven E. JOHNSON
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Patent number: 11787255Abstract: A machine includes a first cylinder coupled to a first wheel and a second cylinder coupled to a second wheel. A first proportional dampening valve fluidly connects to the first cylinder and a second proportional dampening valve fluidly connects to the second cylinder. First accumulators are fluidly connected to the first cylinder and the first proportional dampening valve, and second accumulator(s) are fluidly connected to the second cylinder and the second proportional dampening valve. Additionally, a first proportional flow control valve fluidly connects to the first cylinder and a second proportional flow control valve fluidly connected to the second cylinder. An electronic control module (ECM) communicatively couples to the first proportional flow control valve and the second proportional flow control valve to adjust a ride height of the first wheel via the first cylinder and a ride height of the second wheel via the second cylinder.Type: GrantFiled: September 20, 2021Date of Patent: October 17, 2023Assignee: Caterpillar Inc.Inventors: Steven E. Johnson, Edward William Mate, Kalpeshkumar N. Patel
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Publication number: 20230088419Abstract: A machine includes a first cylinder coupled to a first wheel and a second cylinder coupled to a second wheel. A first proportional dampening valve fluidly connects to the first cylinder and a second proportional dampening valve fluidly connects to the second cylinder. First accumulators are fluidly connected to the first cylinder and the first proportional dampening valve, and second accumulator(s) are fluidly connected to the second cylinder and the second proportional dampening valve. Additionally, a first proportional flow control valve fluidly connects to the first cylinder and a second proportional flow control valve fluidly connected to the second cylinder. An electronic control module (ECM) communicatively couples to the first proportional flow control valve and the second proportional flow control valve to adjust a ride height of the first wheel via the first cylinder and a ride height of the second wheel via the second cylinder.Type: ApplicationFiled: September 20, 2021Publication date: March 23, 2023Applicant: Caterpillar Inc.Inventors: Steven E. Johnson, Edward William Mate, Kalpeshkumar N. Patel
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Patent number: 11607462Abstract: Provided herein are compositions, systems, and methods for minimally-invasive assessment of toxicity-induced tissue injury. In particular, external (e.g., whole-body) scanning is employed to detect toxicity-induced injuries, such as those caused by chemotherapeutics.Type: GrantFiled: May 16, 2018Date of Patent: March 21, 2023Assignee: Northwestern UniversityInventors: Ming Zhao, Steven E. Johnson
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Patent number: 11283692Abstract: Service discovery for an application lacking capabilities sufficient to facilitate Universal Plug and Play (UPnP), Zero-configuration networking (Zeroconf), Simple Service Discovery Protocol (SSDP) or other service discovery protocols relying upon multicast User Datagram Protocol (UDP) is contemplated. The service discovery may be facilitated with a discovery proxy configured to identify available services and a discovery service having capabilities sufficient to apprise the application of the services identified with the discovery proxy.Type: GrantFiled: August 31, 2018Date of Patent: March 22, 2022Assignee: Cable Television Laboratories, Inc.Inventors: Robert M. Lund, Steven E. Johnson
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Patent number: 10552518Abstract: Manipulation of a Web page displayed through a first device as a function of user interaction with a second device is contemplated. The manipulation may include operating the second device as a touchscreen or other gesture-based controllable device and automatically providing corresponding navigation within the Web page as a function of interactions registered through the second device.Type: GrantFiled: April 4, 2017Date of Patent: February 4, 2020Assignee: Cable Television Laboratories, Inc.Inventors: Robert M. Lund, Steven E. Johnson
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Publication number: 20180375742Abstract: Service discovery for an application lacking capabilities sufficient to facilitate Universal Plug and Play (UPnP), Zero-configuration networking (Zeroconf), Simple Service Discovery Protocol (SSDP) or other service discovery protocols relying upon multicast User Datagram Protocol (UDP) is contemplated. The service discovery may be facilitated with a discovery proxy configured to identify available services and a discovery service having capabilities sufficient to apprise the application of the services identified with the discovery proxy.Type: ApplicationFiled: August 31, 2018Publication date: December 27, 2018Inventors: Robert M. Lund, Steven E. Johnson
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Publication number: 20180333506Abstract: Provided herein are compositions, systems, and methods for minimally-invasive assessment of toxicity-induced tissue injury. In particular, external (e.g., whole-body) scanning is employed to detect toxicity-induced injuries, such as those caused by chemotherapeutics.Type: ApplicationFiled: May 16, 2018Publication date: November 22, 2018Inventors: Ming Zhao, Steven E. Johnson
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Patent number: 10075348Abstract: Service discovery for an application lacking capabilities sufficient to facilitate Universal Plug and Play (UPnP), Zero-configuration networking (Zeroconf), Simple Service Discovery Protocol (SSDP) or other service discovery protocols relying upon multicast User Datagram Protocol (UDP) is contemplated. The service discovery may be facilitated with a discovery proxy configured to identify available services and a discovery service having capabilities sufficient to apprise the application of the services identified with the discovery proxy.Type: GrantFiled: July 25, 2014Date of Patent: September 11, 2018Assignee: Cable Television Laboratories, Inc.Inventors: Robert M. Lund, Steven E. Johnson
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Patent number: 9998448Abstract: Delegating authorizations sufficient to access services is contemplate. The authorization may be delegated in the form of a token or other transmissible construct relied upon to authenticate access to services, such as but not necessarily limited to conferring a user identity established via authenticated device for the purposes of enabling an unauthenticated or unsecured device to access a service associated with the user identity.Type: GrantFiled: May 9, 2017Date of Patent: June 12, 2018Assignee: Cable Television Laboratories, Inc.Inventors: Robert M. Lund, Steven E. Johnson
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Patent number: 9961072Abstract: Delegating authorizations sufficient to access services is contemplate. The authorization may be delegated in the form of a token or other transmissible construct relied upon to authenticate access to services, such as but not necessarily limited to conferring a user identity established via authenticated device for the purposes of enabling an unauthenticated or unsecured device to access a service associated with the user identity.Type: GrantFiled: May 9, 2017Date of Patent: May 1, 2018Assignee: Cable Television Laboratories, Inc.Inventors: Robert M. Lund, Steven E. Johnson
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Publication number: 20170244695Abstract: Delegating authorizations sufficient to access services is contemplate. The authorization may be delegated in the form of a token or other transmissible construct relied upon to authenticate access to services, such as but not necessarily limited to conferring a user identity established via authenticated device for the purposes of enabling an unauthenticated or unsecured device to access a service associated with the user identity.Type: ApplicationFiled: May 9, 2017Publication date: August 24, 2017Inventors: Robert M. Lund, Steven E. Johnson
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Publication number: 20170244696Abstract: Delegating authorizations sufficient to access services is contemplate. The authorization may be delegated in the form of a token or other transmissible construct relied upon to authenticate access to services, such as but not necessarily limited to conferring a user identity established via authenticated device for the purposes of enabling an unauthenticated or unsecured device to access a service associated with the user identity.Type: ApplicationFiled: May 9, 2017Publication date: August 24, 2017Inventors: Robert M. Lund, Steven E. Johnson
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Publication number: 20170205974Abstract: Manipulation of a Web page displayed through a first device as a function of user interaction with a second device is contemplated. The manipulation may include operating the second device as a touchscreen or other gesture-based controllable device and automatically providing corresponding navigation within the Web page as a function of interactions registered through the second device.Type: ApplicationFiled: April 4, 2017Publication date: July 20, 2017Inventors: Robert M. Lund, Steven E. Johnson
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Patent number: 9648003Abstract: Delegating authorizations sufficient to access services is contemplate. The authorization may be delegated in the form of a token or other transmissible construct relied upon to authenticate access to services, such as but not necessarily limited to conferring a user identity established via authenticated device for the purposes of enabling an unauthenticated or unsecured device to access a service associated with the user identity.Type: GrantFiled: January 23, 2015Date of Patent: May 9, 2017Assignee: Cable Television Laboratories, Inc.Inventors: Robert M. Lund, Steven E. Johnson
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Patent number: 9613011Abstract: Manipulation of a Web page displayed through a first device as a function of user interaction with a second device is contemplated. The manipulation may include operating the second device as a touchscreen or other gesture-based controllable device and automatically providing corresponding navigation within the Web page as a function of interactions registered through the second device.Type: GrantFiled: June 20, 2013Date of Patent: April 4, 2017Assignee: Cable Television Laboratories, Inc.Inventors: Robert M. Lund, Steven E. Johnson
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Patent number: 9605411Abstract: A hydraulic circuit includes: a priority valve including a first position and a second position where: the first position includes a first fluid passage and a fixed bypass orifice connected to the first fluid passage; the second position includes a second fluid passage and a variable bypass orifice connected to the second fluid passage. The hydraulic circuit further includes: a first fluid line fluidly connecting the priority valve and a first machine component; a second fluid line fluidly connecting the priority valve and a second machine component; a check valve placed between the priority valve and the second machine component and fluidly connecting the priority valve and the second machine component; an oil passage on the priority valve fluidly connected to one or more machine components other than the first and second machine components; one or more actuators connected to the priority valve; and a control valve communicatively connected to the one or more actuators connected to the priority valve.Type: GrantFiled: September 26, 2014Date of Patent: March 28, 2017Assignee: Caterpillar Inc.Inventors: Gang Wen, Moses I. Akpan, Steven E. Johnson