Patents by Inventor Brent J. Grothaus
Brent J. Grothaus 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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Patent number: 9699818Abstract: A monitoring system comprises a storage device monitor and a communication device. The storage device monitor is powered by an energy storage device (e.g., battery or fuel cell) to which the storage device monitor is attached. The communication device is mounted on an industrial vehicle or battery charger. A load is electrically connected to the communication device that is external to and independent from the storage device monitor. In operation, the communication device transmits an encoded message to the load. A controller of the storage device monitor detects the encoded message by sensing changes in a characteristic of the energy storage device that occur responsive to the communication device transmitting the encoded message to the load. The controller of the storage device monitor converts the encoded message into a discovery parameter, and pairs with the communication device across a wireless network based upon the discovery parameter.Type: GrantFiled: March 24, 2015Date of Patent: July 4, 2017Assignee: Crown Equipment CorporationInventors: Brent J. Grothaus, Dean Winner
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Patent number: 9638566Abstract: The present application discloses a method for measuring pressurized liquid fuel level in a fuel tank used on a vehicle comprising measuring the pressure of the fuel to generate a pressure signal and measuring the temperature of the fuel to generate a temperature signal. A fuel level signal is determined from the pressure signal and the temperature signal and changes in the fuel level signal are determined over time. A first point of the fuel level signal indicating approaching emptying of the tank is identified when changes in the fuel level signal exceed a given value and the approaching emptying of the tank is signaled to an operator of the vehicle in response to identifying the first point.Type: GrantFiled: June 30, 2016Date of Patent: May 2, 2017Assignee: Crown Equipment CorporationInventors: Brent J. Grothaus, Nicholas J. Stein
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Publication number: 20160305811Abstract: The present application discloses a method for measuring pressurized liquid fuel level in a fuel tank used on a vehicle comprising measuring the pressure of the fuel to generate a pressure signal and measuring the temperature of the fuel to generate a temperature signal. A fuel level signal is determined from the pressure signal and the temperature signal and changes in the fuel level signal are determined over time. A first point of the fuel level signal indicating approaching emptying of the tank is identified when changes in the fuel level signal exceed a given value and the approaching emptying of the tank is signaled to an operator of the vehicle in response to identifying the first point.Type: ApplicationFiled: June 30, 2016Publication date: October 20, 2016Inventors: Brent J. Grothaus, Nicholas J. Stein
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Patent number: 9453753Abstract: The present application discloses a method for measuring pressurized liquid fuel level in a fuel tank used on a vehicle comprising measuring the pressure of the fuel to generate a pressure signal and measuring the temperature of the fuel to generate a temperature signal. A fuel level signal is determined from the pressure signal and the temperature signal and changes in the fuel level signal are determined over time. A first point of the fuel level signal indicating approaching emptying of the tank is identified when changes in the fuel level signal exceed a given value and the approaching emptying of the tank is signaled to an operator of the vehicle in response to identifying the first point.Type: GrantFiled: March 17, 2010Date of Patent: September 27, 2016Assignee: Crown Equipment CorporationInventors: Brent J. Grothaus, Nicholas J. Stein
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Publication number: 20150195861Abstract: A monitoring system comprises a storage device monitor and a communication device. The storage device monitor is powered by an energy storage device (e.g., battery or fuel cell) to which the storage device monitor is attached. The communication device is mounted on an industrial vehicle or battery charger. A load is electrically connected to the communication device that is external to and independent from the storage device monitor. In operation, the communication device transmits an encoded message to the load. A controller of the storage device monitor detects the encoded message by sensing changes in a characteristic of the energy storage device that occur responsive to the communication device transmitting the encoded message to the load. The controller of the storage device monitor converts the encoded message into a discovery parameter, and pairs with the communication device across a wireless network based upon the discovery parameter.Type: ApplicationFiled: March 24, 2015Publication date: July 9, 2015Inventors: Brent J. Grothaus, Dean Winner
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Patent number: 9013323Abstract: A battery monitor is paired to a communication device, e.g., as provided on an industrial vehicle, battery charger, etc., for wireless communication. Pairing is implemented by transmitting an encoded message from the communication device to a load. The encoded message is detected by the battery monitor, by sensing changes in a characteristic of the battery that occur responsive to the communication device transmitting the encoded message to the load. The battery monitor then converts the encoded message into a discovery parameter. A paired wireless connection is set up between the communication device and the battery monitor using the discovery parameter such that the battery monitor and communication device wirelessly communicate thereafter.Type: GrantFiled: March 15, 2013Date of Patent: April 21, 2015Assignee: Crown Equipment CorporationInventors: Brent J. Grothaus, Dean Winner
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Publication number: 20140266779Abstract: A battery monitor is paired to a communication device, e.g., as provided on an industrial vehicle, battery charger, etc., for wireless communication. Pairing is implemented by transmitting an encoded message from the communication device to a load. The encoded message is detected by the battery monitor, by sensing changes in a characteristic of the battery that occur responsive to the communication device transmitting the encoded message to the load. The battery monitor then converts the encoded message into a discovery parameter. A paired wireless connection is set up between the communication device and the battery monitor using the discovery parameter such that the battery monitor and communication device wirelessly communicate thereafter.Type: ApplicationFiled: March 15, 2013Publication date: September 18, 2014Applicant: CROWN EQUIPMENT CORPORATIONInventors: Brent J. Grothaus, Dean Winner
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Publication number: 20100238013Abstract: The present application discloses a method for measuring pressurized liquid fuel level in a fuel tank used on a vehicle comprising measuring the pressure of the fuel to generate a pressure signal and measuring the temperature of the fuel to generate a temperature signal. A fuel level signal is determined from the pressure signal and the temperature signal and changes in the fuel level signal are determined over time. A first point of the fuel level signal indicating approaching emptying of the tank is identified when changes in the fuel level signal exceed a given value and the approaching emptying of the tank is signaled to an operator of the vehicle in response to identifying the first point.Type: ApplicationFiled: March 17, 2010Publication date: September 23, 2010Applicant: CROWN EQUIPMENT CORPORATIONInventors: Brent J. Grothaus, Nicholas J. Stein