Patents by Inventor Oliver A. Bell
Oliver A. Bell 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: 20200095575Abstract: A method of detecting Polycomb Repressive Complex (PRC) activity in a cell providing a cell with a DNA having a protein binding site and at least one reporter gene expression site is operatively connected to the protein binding site, and with a DNA containing a recombinant gene of a binding protein, the binding protein being capable of binding to the protein binding site, wherein the binding protein is fused to a member of the PRC, the method including the step of expressing the recombinant gene, letting the fused binding protein bind to the protein binding site and detecting at least one reporter gene expression.Type: ApplicationFiled: March 23, 2018Publication date: March 26, 2020Inventors: Oliver BELL, Hagar MOUSSA, Ramesh YELAGANDULA
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Patent number: 8201897Abstract: A method for braking an electric utility vehicle including a motor and an electromechanical brake. The method includes storing a value indicative of at least one of an amount of current, voltage, and power that is commanded to a motor of the electric utility vehicle to maintain the electric utility vehicle in a stopped state; engaging a parking brake function of an electromechanical brake after the storing; disabling the motor after the engaging; commanding the at least one of the current, voltage, and power to the motor at the stored value when an accelerator pedal is depressed; and disengaging the parking brake function after the commanding.Type: GrantFiled: March 25, 2011Date of Patent: June 19, 2012Assignee: Textron Inc.Inventors: Oliver A. Bell, Jr., Warren W. Clark
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Publication number: 20120116628Abstract: A drive system is provided for a utility vehicle and includes an alternating-current (AC) motor for providing a drive torque. An AC motor controller receives a battery voltage signal, throttle pedal position signal, brake pedal position signal, key switch signal, forward/neutral/reverse (FNR) signal, and run/tow signal indicative of the utility vehicle being configured to be driven and being configured to be towed. The AC motor controller generates an AC drive signal for the AC motor, wherein the AC drive signal is based on the battery voltage signal, throttle pedal position signal, brake pedal position signal, key switch signal, FNR signal, and run/tow signal.Type: ApplicationFiled: January 12, 2012Publication date: May 10, 2012Applicant: Textron Inc.Inventors: Warren Clark, Oliver A. Bell
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Patent number: 8120291Abstract: A drive system is provided for a utility vehicle and includes an alternating-current (AC) motor for providing a drive torque. An AC motor controller receives a battery voltage signal, throttle pedal position signal, brake pedal position signal, key switch signal, forward/neutral/reverse (FNR) signal, and run/tow signal indicative of the utility vehicle being configured to be driven and being configured to be towed. The AC motor controller generates an AC drive signal for the AC motor, wherein the AC drive signal is based on the battery voltage signal, throttle pedal position signal, brake pedal position signal, key switch signal, FNR signal, and run/tow signal.Type: GrantFiled: October 4, 2010Date of Patent: February 21, 2012Assignee: Textron Innovations Inc.Inventors: Warren W. Clark, Oliver A. Bell
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Publication number: 20110172869Abstract: A method for braking an electric utility vehicle including a motor and an electromechanical brake. The method includes storing a value indicative of at least one of an amount of current, voltage, and power that is commanded to a motor of the electric utility vehicle to maintain the electric utility vehicle in a stopped state; engaging a parking brake function of an electromechanical brake after the storing; disabling the motor after the engaging; commanding the at least one of the current, voltage, and power to the motor at the stored value when an accelerator pedal is depressed; and disengaging the parking brake function after the commanding.Type: ApplicationFiled: March 25, 2011Publication date: July 14, 2011Applicant: TEXTRON INC.Inventors: Oliver A. Bell, JR., Warren W. Clark
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Publication number: 20110106357Abstract: A drive system is provided for a utility vehicle and includes an alternating-current (AC) motor for providing a drive torque. An AC motor controller receives a battery voltage signal, throttle pedal position signal, brake pedal position signal, key switch signal, forward/neutral/reverse (FNR) signal, and run/tow signal indicative of the utility vehicle being configured to be driven and being configured to be towed. The AC motor controller generates an AC drive signal for the AC motor, wherein the AC drive signal is based on the battery voltage signal, throttle pedal position signal, brake pedal position signal, key switch signal, FNR signal, and run/tow signal.Type: ApplicationFiled: October 4, 2010Publication date: May 5, 2011Applicant: TEXTRON INC.Inventors: Warren Clark, Oliver A. Bell
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Patent number: 7926889Abstract: A method for braking an electric utility vehicle including a motor and an electromechanical brake. The method includes storing a value indicative of at least one of an amount of current, voltage, and power that is commanded to a motor of the electric utility vehicle to maintain the electric utility vehicle in a stopped state; engaging a parking brake function of an electromechanical brake after the storing; disabling the motor after the engaging; commanding the at least one of the current, voltage, and power to the motor at the stored value when an accelerator pedal is depressed; and disengaging the parking brake function after the commanding.Type: GrantFiled: October 29, 2007Date of Patent: April 19, 2011Assignee: Textron Innovations Inc.Inventors: Oliver A. Bell, Jr., Warren Clark
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Patent number: 7825616Abstract: A drive system is provided for a utility vehicle and includes an alternating-current (AC) motor for providing a drive torque. An AC motor controller receives a battery voltage signal, throttle pedal position signal, brake pedal position signal, key switch signal, forward/neutral/reverse (FNR) signal, and run/tow signal indicative of the utility vehicle being configured to be driven and being configured to be towed. The AC motor controller generates an AC drive signal for the AC motor, wherein the AC drive signal is based on the battery voltage signal, throttle pedal position signal, brake pedal position signal, key switch signal, FNR signal, and run/tow signal.Type: GrantFiled: June 19, 2009Date of Patent: November 2, 2010Assignee: Textron Innovations Inc.Inventors: Warren Clark, Oliver A. Bell, Jr.
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Publication number: 20090259356Abstract: A drive system is provided for a utility vehicle and includes an alternating-current (AC) motor for providing a drive torque. An AC motor controller receives a battery voltage signal, throttle pedal position signal, brake pedal position signal, key switch signal, forward/neutral/reverse (FNR) signal, and run/tow signal indicative of the utility vehicle being configured to be driven and being configured to be towed. The AC motor controller generates an AC drive signal for the AC motor, wherein the AC drive signal is based on the battery voltage signal, throttle pedal position signal, brake pedal position signal, key switch signal, FNR signal, and run/tow signal.Type: ApplicationFiled: June 19, 2009Publication date: October 15, 2009Applicant: Textron Inc.Inventors: Warren Clark, Oliver A. Bell, JR.
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Patent number: 7560882Abstract: A drive system is provided for a utility vehicle and includes an alternating-current (AC) motor for providing a drive torque. An AC motor controller receives a battery voltage signal, throttle pedal position signal, brake pedal position signal, key switch signal, forward/neutral/reverse (FNR) signal, and run/tow signal indicative of the utility vehicle being configured to be driven and being configured to be towed. The AC motor controller generates an AC drive signal for the AC motor, wherein the AC drive signal is based on the battery voltage signal, throttle pedal position signal, brake pedal position signal, key switch signal, FNR signal, and run/tow signal.Type: GrantFiled: December 28, 2007Date of Patent: July 14, 2009Assignee: Textron Inc.Inventors: Warren Clark, Oliver A. Bell
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Publication number: 20090171599Abstract: A system is disclosed for determining battery state-of-charge (SoC) in an electric vehicle. The system includes an inverter that converts battery power to an alternating current, a current sensor that generates a signal indicative of a magnitude and direction of the alternating current, a first analog-to-digital converter (A2D) that converts the signal to current data, and a central processing unit (CPU) that periodically stores a present value of the current data to an associated memory and determines the SoC based on the stored current data.Type: ApplicationFiled: December 28, 2007Publication date: July 2, 2009Applicant: TEXTRON INC.Inventors: Oliver A. Bell, Warren Clark
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Publication number: 20090167096Abstract: Accordingly, an energy dumping system for an electric component system is provided. The energy dumping system includes a power consuming element that consumes excess energy of the electric component system and dissipates the excess energy as heat. A solid state switch selectively permits energy of the electric component system to flow across the power consuming element. A control module is operable to monitor a voltage of the electric component system and apply a pulse width modulated (PWM) signal to the solid state switch to selectively control energy of the electric component system to flow across the power consuming element.Type: ApplicationFiled: December 28, 2007Publication date: July 2, 2009Applicant: TEXTRON INC.Inventors: Witold Sosnowski, Joseph Gill, Patrick Warden, Oliver A. Bell
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Publication number: 20090160633Abstract: A brake lighting system for a lightweight utility vehicle is provided. The brake lighting system can comprise a pressure sensitive brake light switch (PSBLS) operably connected to a brake pedal subassembly of the vehicle. The PSBLS is configured such that depression of a brake pedal included in the brake pedal subassembly compresses the pressure sensitive brake light switch. The brake lighting system additionally can comprise a brake light circuit that can comprise at least one brake light and an electronic switching device communicatively connected to the PSBLS. The electronic switching device is responsive to a brake light signal transmitted by the PSBLS when the PSBLS is compressed. Upon receipt of the brake light signal, the electronic switching device enables a current flow through the brake light to illuminate the brake light.Type: ApplicationFiled: December 21, 2007Publication date: June 25, 2009Applicant: TEXTRON INC.Inventors: Warren Clark, Aric Singletary, Oliver A. Bell, JR.
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Publication number: 20090119038Abstract: A battery data-logging arrangement for use with an electric vehicle is disclosed. The arrangement includes a first analog-to-digital converter (A2D) that converts a battery voltage signal to battery voltage data. A second A2D converts a battery current signal to battery current data. A clock generates time data. A computer memory is associated with a central processing unit (CPU) that correlates and stores the battery voltage data, the battery current data, and the time data in the memory.Type: ApplicationFiled: November 1, 2007Publication date: May 7, 2009Applicant: TEXTRON INC.Inventor: Oliver A. Bell, Jr.
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Publication number: 20090107264Abstract: A quality inspection system and method for identifying faulty battery plates is provided, wherein the plates comprise lead grids that have undergone a pasting process. In various embodiments, the quality inspection system includes a first scanner positioned to sequentially scan a first surface of each of a plurality of the battery plates, after the lead grids have undergone the pasting process. The first scanner scans the first surface of each plate for anomalies and communicates scanned first surface data to a processing center. The processing center analyzes the first surface data and determines an integrity status of the first surface, i.e., whether anomalies exist in the first surface. If anomalies exist in the first surface of any plate the respective plate can be discarded.Type: ApplicationFiled: October 29, 2007Publication date: April 30, 2009Applicant: TEXTRON INC.Inventor: Oliver A. Bell
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Publication number: 20090107391Abstract: A vehicle meter can include first and second inputs and a gauge. The first input can be configured to receive a fuel level value from a fuel system. The second input can be configured to receive a power level value from a battery system. The gauge can be configured to display one of the fuel level or the power level. The gauge can display the fuel level when the first input is in communication with the fuel system and the power level value when the second input is in communication with the battery system.Type: ApplicationFiled: December 20, 2007Publication date: April 30, 2009Applicant: TEXTRON INC.Inventors: Joseph Brady, Kent H. Bruntz, Oliver A. Bell
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Publication number: 20090107740Abstract: A method for braking an electric utility vehicle including a motor and an electromechanical brake. The method includes storing a value indicative of at least one of an amount of current, voltage, and power that is commanded to a motor of the electric utility vehicle to maintain the electric utility vehicle in a stopped state; engaging a parking brake function of an electromechanical brake after the storing; disabling the motor after the engaging; commanding the at least one of the current, voltage, and power to the motor at the stored value when an accelerator pedal is depressed; and disengaging the parking brake function after the commanding.Type: ApplicationFiled: October 29, 2007Publication date: April 30, 2009Applicant: TEXTRON INC.Inventors: Oliver A. Bell, Warren Clark
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Publication number: 20090107741Abstract: An electric vehicle, such as a golf car or utility vehicle, is provided with an electric motor that provides dynamic braking for the vehicle. The vehicle drivetrain is provided with a limited slip differential in order to prevent the wheels from turning freely when traction is lost.Type: ApplicationFiled: October 25, 2007Publication date: April 30, 2009Applicant: TEXTRON INC.Inventors: Oliver A. Bell, Warren Clark
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Publication number: 20090107749Abstract: A traction control system for a light-weight utility vehicle is provided. The system includes a wheel speed sensor that generates a wheel speed signal in accordance with a rotational speed of a non-driven wheel of the utility vehicle. An accelerator position sensor generates an accelerator signal in accordance with a position of an accelerator pedal of the utility vehicle. A controller receives the wheel speed signal and the accelerator signal, determines an intended speed based on the accelerator signal, and determines a substantially actual wheel speed based on the wheel speed signal. Based on a comparison of the substantially actual wheel speed and the intended speed, the controller controls rotation of at least one driven wheel by adjusting at least one of a commanded speed and a commanded torque when the substantially actual wheel speed is outside of a desired range of the intended speed.Type: ApplicationFiled: October 30, 2007Publication date: April 30, 2009Applicant: TEXTRON INC.Inventors: Warren Clark, Aric Singletary, Oliver A. Bell
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Publication number: 20080251307Abstract: A method of limiting speed of a light-weight utility vehicle is provided. The method includes receiving a terrain roughness signal generated from a motion sensor. The signal indicates a roughness of a terrain over which the utility vehicle is traversing. The method additionally includes determining a peak-to-peak amplitude of the terrain roughness signal and limiting the speed of the utility vehicle if the peak-to-peak amplitude is greater than a maximum threshold.Type: ApplicationFiled: April 13, 2007Publication date: October 16, 2008Applicant: TEXTRON INC.Inventor: Oliver A. Bell