Patents by Inventor David W. Procknow
David W. Procknow 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: 11913417Abstract: An internal combustion engine includes an engine block, a crankshaft configured to rotate about a crankshaft axis, a flywheel coupled to the crankshaft and positioned above the engine block, an outer housing positioned above the engine block and the flywheel, and an electric starting system. The electric starting system includes an electric motor and an energy storage device positioned above the flywheel and below the outer housing. The energy storage device is electrically coupled to the electric motor to power the electric motor. When the electric starting system is configured to rotate the crankshaft to start the engine when the electric starting system is activated.Type: GrantFiled: February 13, 2023Date of Patent: February 27, 2024Assignee: Briggs & Stratton, LLCInventors: David W. Procknow, Mark Meyer
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Publication number: 20230184203Abstract: An internal combustion engine includes an engine block, a crankshaft configured to rotate about a crankshaft axis, a flywheel coupled to the crankshaft and positioned above the engine block, an outer housing positioned above the engine block and the flywheel, and an electric starting system. The electric starting system includes an electric motor and an energy storage device positioned above the flywheel and below the outer housing. The energy storage device is electrically coupled to the electric motor to power the electric motor. When the electric starting system is configured to rotate the crankshaft to start the engine when the electric starting system is activated.Type: ApplicationFiled: February 13, 2023Publication date: June 15, 2023Applicant: BRIGGS & STRATTON, LLCInventors: David W. Procknow, Mark Meyer
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Patent number: 11639681Abstract: An engine including an engine block having a cylinder defining a front of the engine, a blower housing coupled to the engine block and defining a hot half positioned adjacent the front of the engine and a cool half opposite the hot half, and an electric starter system positioned within the blower housing. The electric starting system includes a starter mount assembly coupled to the blower housing, an electric starter motor retained by the starter mount assembly and positioned in the cool half, and a battery mounted to the blower housing and positioned in the cool half. The battery is electrically coupled to the electric starter motor.Type: GrantFiled: August 8, 2022Date of Patent: May 2, 2023Assignee: Briggs & Stratton, LLCInventors: Mark Meyer, David W. Procknow, James Michael Busse
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Patent number: 11610464Abstract: An internal combustion engine-based system including an engine, a shutdown circuit coupled to the engine to shut down the engine, a controller in communication with the shutdown circuit, and a carbon monoxide (CO) sensor in communication with the controller. The controller communicates with the shutdown circuit to shut down the engine at a predetermined CO threshold concentration when the CO sensor provides the controller with signals that are representative of a CO level proximate the engine that indicate a trend of building CO levels over a set time interval.Type: GrantFiled: September 12, 2019Date of Patent: March 21, 2023Assignee: Briggs & Stratton, LLCInventors: Ryan D. Janscha, David W. Procknow, Brandon Nigh, Mark David Willer
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Patent number: 11578689Abstract: An internal combustion engine includes an engine block, a blower housing configured to direct cooling air to the engine block, an electric starting system, and a crankshaft configured to rotate about a crankshaft axis. The electric starting system includes an electric motor and an energy storage device located within the blower housing. The energy storage device is electrically coupled to the electric motor to power the electric motor, and is positioned above the crankshaft. When the starter motor is activated, the electric starting system rotates the crankshaft to rotate the engine for starting.Type: GrantFiled: August 5, 2021Date of Patent: February 14, 2023Assignee: Briggs & Stratton, LLCInventors: David W. Procknow, Mark Meyer
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Publication number: 20220381176Abstract: An engine including an engine block having a cylinder defining a front of the engine, a blower housing coupled to the engine block and defining a hot half positioned adjacent the front of the engine and a cool half opposite the hot half, and an electric starter system positioned within the blower housing. The electric starting system includes a starter mount assembly coupled to the blower housing, an electric starter motor retained by the starter mount assembly and positioned in the cool half, and a battery mounted to the blower housing and positioned in the cool half. The battery is electrically coupled to the electric starter motor.Type: ApplicationFiled: August 8, 2022Publication date: December 1, 2022Applicant: Briggs & Stratton, LLCInventors: Mark Meyer, David W. Procknow, James Michael Busse
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Patent number: 11477939Abstract: A mower deck insert includes a first cutting chamber, a second cutting chamber, and a discharge passage extending adjacent to the first cutting chamber and the second cutting chamber. The first cutting chamber includes a first axial scroll extending about a first vertical axis. The first axial scroll includes a first upper surface having a first start region and a first end region. The second cutting chamber includes a second axial scroll extending about a second vertical axis. The second axial scroll includes a second upper surface having a second start region and a second end region. The first start region is vertically lower than the first end region, and the second start region is vertically lower than the second end region.Type: GrantFiled: February 21, 2020Date of Patent: October 25, 2022Assignee: Briggs & Stratton, LLCInventors: Jeffrey M. Zeiler, Kenneth W. Derra, Scott A. Funke, David W. Procknow, Rodney J. Balzar
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Patent number: 11408326Abstract: An engine including an engine block having a cylinder defining a front of the engine, a blower housing coupled to the engine block and defining a hot half and a cool half opposite the front half, a starter mount assembly coupled to the blower housing and positioned within the cool half, an electric starter motor retained by the starter mount assembly, and a battery mounted to the blower housing and positioned in the cool half. The battery is electrically coupled to the electric starter motor.Type: GrantFiled: July 12, 2018Date of Patent: August 9, 2022Assignee: Briggs & Stratton, LLCInventors: Mark Meyer, David W. Procknow, James Michael Busse
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Publication number: 20210363955Abstract: An internal combustion engine includes an engine block, a blower housing configured to direct cooling air to the engine block, an electric starting system, and a crankshaft configured to rotate about a crankshaft axis. The electric starting system includes an electric motor and an energy storage device located within the blower housing. The energy storage device is electrically coupled to the electric motor to power the electric motor, and is positioned above the crankshaft. When the starter motor is activated, the electric starting system rotates the crankshaft to rotate the engine for starting.Type: ApplicationFiled: August 5, 2021Publication date: November 25, 2021Applicant: BRIGGS & STRATTON, LLCInventors: David W. Procknow, Mark Meyer
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Publication number: 20210270225Abstract: An engine including an engine block having a cylinder defining a front of the engine, a blower housing coupled to the engine block and defining a hot half and a cool half opposite the front half, a starter mount assembly coupled to the blower housing and positioned within the cool half, an electric starter motor retained by the starter mount assembly, and a battery mounted to the blower housing and positioned in the cool half. The battery is electrically coupled to the electric starter motor.Type: ApplicationFiled: July 12, 2018Publication date: September 2, 2021Applicant: Briggs & Stratton, LLCInventors: Mark Meyer, David W. Procknow, James Michael Busse
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Patent number: 11085412Abstract: An internal combustion engine includes an engine block, a blower housing configured to direct cooling air to the engine block, an electric starting system, and a crankshaft configured to rotate about a crankshaft axis. The electric starting system includes an electric motor and an energy storage device located within the blower housing. The energy storage device is electrically coupled to the electric motor to power the electric motor. When the starter motor is activated, the electric starting system rotates the crankshaft to rotate the engine for starting.Type: GrantFiled: December 6, 2019Date of Patent: August 10, 2021Assignee: Briggs & Stratton, LLCInventors: David W. Procknow, Mark Meyer
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Patent number: 11002234Abstract: A fuel delivery injector includes a housing, an inlet port fluidly coupled to a cavity to direct fuel vapor and liquid fuel into the cavity, and an outlet port fluidly coupled to the cavity to direct fuel vapor and liquid fuel out of the cavity. A magnetic assembly is fixedly positioned within the cavity, and a pumping assembly includes a bobbin and a piston. A return spring is coupled to the pumping assembly to bias the pumping assembly to a home position. A valve is positioned within the piston and is movable between an open position and a closed position. The liquid fuel entering the housing through the inlet port flows from the inlet port to the cavity and fuel vapor entering the housing through the inlet port is directed through a conduit to the outlet port.Type: GrantFiled: April 30, 2020Date of Patent: May 11, 2021Assignee: Briggs & Stratton, LLCInventors: Michael D. Pitcel, David W. Procknow, Jacob Zuehl, David A. Kratz
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Publication number: 20200256295Abstract: A fuel delivery injector includes a housing, an inlet port fluidly coupled to a cavity to direct fuel vapor and liquid fuel into the cavity, and an outlet port fluidly coupled to the cavity to direct fuel vapor and liquid fuel out of the cavity. A magnetic assembly is fixedly positioned within the cavity, and a pumping assembly includes a bobbin and a piston. A return spring is coupled to the pumping assembly to bias the pumping assembly to a home position. A valve is positioned within the piston and is movable between an open position and a closed position. The liquid fuel entering the housing through the inlet port flows from the inlet port to the cavity and fuel vapor entering the housing through the inlet port is directed through a conduit to the outlet port.Type: ApplicationFiled: April 30, 2020Publication date: August 13, 2020Applicant: Briggs & Stratton CorporationInventors: Michael D. Pitcel, David W. Procknow, Jacob Zuehl, David A. Kratz
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Publication number: 20200205339Abstract: A mower deck insert includes a first cutting chamber, a second cutting chamber, and a discharge passage extending adjacent to the first cutting chamber and the second cutting chamber. The first cutting chamber includes a first axial scroll extending about a first vertical axis. The first axial scroll includes a first upper surface having a first start region and a first end region. The second cutting chamber includes a second axial scroll extending about a second vertical axis. The second axial scroll includes a second upper surface having a second start region and a second end region. The first start region is vertically lower than the first end region, and the second start region is vertically lower than the second end region.Type: ApplicationFiled: February 21, 2020Publication date: July 2, 2020Applicant: BRIGGS & STRATTON CORPORATIONInventors: Jeffrey M. Zeiler, Kenneth W. Derra, Scott A. Funke, David W. Procknow, Rodney J. Balzar
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Patent number: 10677205Abstract: A fuel delivery injector includes a housing, an end cap including an inlet port fluidly coupled to a cavity to direct fuel vapor and liquid fuel into the cavity and an outlet port fluidly coupled to the cavity to direct fuel vapor and liquid fuel out of the cavity, a magnetic assembly fixedly positioned within the cavity, and a pumping assembly including a bobbin and a piston. A return spring is coupled to the pumping assembly to bias the pumping assembly to a home position and a valve assembly including a biasing spring is positioned between an inlet chamber and an outlet chamber. The liquid fuel entering the housing through the inlet port flows from the inlet port to the cavity and fuel vapor entering the housing through the inlet port is directed through a conduit to the outlet port.Type: GrantFiled: December 21, 2018Date of Patent: June 9, 2020Assignee: Briggs & Stratton CorporationInventors: Michael D. Pitcel, David W. Procknow, Jacob Zuehl, David A. Kratz
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Publication number: 20200116117Abstract: An internal combustion engine includes an engine block, a blower housing configured to direct cooling air to the engine block, an electric starting system, and a crankshaft configured to rotate about a crankshaft axis. The electric starting system includes an electric motor and an energy storage device located within the blower housing. The energy storage device is electrically coupled to the electric motor to power the electric motor. When the starter motor is activated, the electric starting system rotates the crankshaft to rotate the engine for starting.Type: ApplicationFiled: December 6, 2019Publication date: April 16, 2020Applicant: BRIGGS & STRATTON CORPORATIONInventors: David W. PROCKNOW, Mark MEYER
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Patent number: 10539112Abstract: An internal combustion engine includes an engine block, an electric motor, a worm coupled to and rotated by the electric motor, a worm gear coupled to and configured to be rotated by the worm, a crankshaft configured to rotate about a crankshaft axis, a flywheel including a flywheel cup having flywheel protrusions, a clutch driven by the worm gear and configured to engage the one or more flywheel protrusions such that the crankshaft is rotated, and an energy storage device electrically coupled to the electric motor. The clutch is configured to disengage from the flywheel protrusions when the rotational speed of the crankshaft exceeds the rotational speed of the worm gear. When the electric motor is activated, the electric motor rotates the worm rotating the worm gear, which causes the clutch to engage the flywheel protrusions, transferring worm gear rotation to the flywheel and the crankshaft to rotate the engine for starting.Type: GrantFiled: April 27, 2017Date of Patent: January 21, 2020Assignee: Briggs & Stratton CorporationInventors: Mark Meyer, David W. Procknow
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Publication number: 20200005617Abstract: An internal combustion engine-based system including an engine, a shutdown circuit coupled to the engine to shut down the engine, a controller in communication with the shutdown circuit, and a carbon monoxide (CO) sensor in communication with the controller. The controller communicates with the shutdown circuit to shut down the engine at a predetermined CO threshold concentration when the CO sensor provides the controller with signals that are representative of a CO level proximate the engine that indicate a trend of building CO levels over a set time interval.Type: ApplicationFiled: September 12, 2019Publication date: January 2, 2020Applicant: Briggs & Stratton CorporationInventors: Ryan D. Janscha, David W. Procknow, Brandon Nigh, Mark David Willer
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Patent number: 10475319Abstract: A generator includes an engine, an air-fuel mixing device coupled to the engine, where the air-fuel mixing device is structured to receive air from an air intake and combine the air with fuel to create an air/fuel mixture, an exhaust outlet positioned on a first side of the generator and coupled to the engine, wherein the exhaust outlet is structured to emit exhaust gases from the engine, and a carbon monoxide (CO) sensor positioned on a second side of the generator opposite the exhaust outlet, where the CO sensor is structured to detect CO concentration near the generator.Type: GrantFiled: April 25, 2019Date of Patent: November 12, 2019Assignee: Briggs & Stratton CorporationInventors: Ryan D. Janscha, David W. Procknow, Brandon Nigh, Mark David Willer
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Publication number: 20190251817Abstract: A generator includes an engine, an air-fuel mixing device coupled to the engine, where the air-fuel mixing device is structured to receive air from an air intake and combine the air with fuel to create an air/fuel mixture, an exhaust outlet positioned on a first side of the generator and coupled to the engine, wherein the exhaust outlet is structured to emit exhaust gases from the engine, and a carbon monoxide (CO) sensor positioned on a second side of the generator opposite the exhaust outlet, where the CO sensor is structured to detect CO concentration near the generator.Type: ApplicationFiled: April 25, 2019Publication date: August 15, 2019Applicant: Briggs & Stratton CorporationInventors: Ryan D. Janscha, David W. Procknow, Brandon Nigh, Mark David Willer