Patents by Inventor John M. Kessler
John M. Kessler 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: 11629751Abstract: A connecting rod assembly has a connecting rod with a large end and a small end, a piston wrist pin, and fasteners to connect the connecting rod to the piston wrist pin and optionally one or more shims in between the connecting rod and piston wrist pin. A notch on the wrist pin allows for the seating of a flat surface on the small end of the connecting rod in the connecting rod assembly. Side walls on both the notch and the small end of the connecting rod limit twist. The connecting rod assembly allows for the adjustment of piston location in a cylinder while limiting connecting rod twist.Type: GrantFiled: June 12, 2019Date of Patent: April 18, 2023Assignee: Achates Power, Inc.Inventors: John M. Kessler, Marc-Ellis H. Brandt, Christopher L. Freestone
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Publication number: 20200392982Abstract: A connecting rod assembly has a connecting rod with a large end and a small end, a piston wrist pin, and fasteners to connect the connecting rod to the piston wrist pin and optionally one or more shims in between the connecting rod and piston wrist pin. A notch on the wrist pin allows for the seating of a flat surface on the small end of the connecting rod in the connecting rod assembly. Side walls on both the notch and the small end of the connecting rod limit twist. The connecting rod assembly allows for the adjustment of piston location in a cylinder while limiting connecting rod twist.Type: ApplicationFiled: June 12, 2019Publication date: December 17, 2020Applicant: ACHATES POWER, INC.Inventors: JOHN M. KESSLER, MARC-ELLIS H. BRANDT, CHRISTOPHER L. FREESTONE
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Publication number: 20200158131Abstract: A supercharger assembly includes rotors, a base plate, and a housing with an anti-fouling material on one or more surfaces where accumulation of soot and/or soot-like material may lead to mechanical friction and possibly seizing. The anti-fouling material can have oleophobic and/or hydrophobic properties.Type: ApplicationFiled: January 6, 2020Publication date: May 21, 2020Applicant: ACHATES POWER, INC.Inventors: JOHN M. KESSLER, John Koszewnik, Bryant A. Wagner
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Publication number: 20200080626Abstract: An opposed-piston engine includes at least two of: a gear train with a backlash reducing means; a viscous damper; and a centrifugal pendulum absorber. The opposed-piston engine can include two crankshafts and a gear train to connect the crankshafts. Any viscous dampers and centrifugal pendulum absorbers can be used to mitigate torsional velocity fluctuations in crankshafts in the engine, and multiple viscous dampers and/or centrifugal pendulum absorbers can be used in an engine. The backlash reducing means can include any of a means to adjust the position of gears in a gear train relative to each other and one or more backlash reducing gears.Type: ApplicationFiled: October 30, 2019Publication date: March 12, 2020Applicant: ACHATES POWER, INC.Inventors: SUMANTH KASHYAP, ABHISHEK B. SAHASRABUDHE, JOHN M. KESSLER
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Patent number: 10422272Abstract: A compact construction for an opposed-piston engine includes a cylinder liner with longitudinally-spaced exhaust and intake ports in which the exhaust port has inner and outer edges presenting a port height that causes the exhaust port to be fully open before a piston associated with the exhaust port reaches bottom dead center during an expansion stroke and the end surface of the associated piston to be spaced outwardly of the outer edge when the piston is at bottom dead center.Type: GrantFiled: November 4, 2015Date of Patent: September 24, 2019Assignee: ACHATES POWER, INC.Inventor: John M. Kessler
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Publication number: 20190264608Abstract: A gear train connecting two crankshafts in an opposed-piston engine includes a first crankshaft coupled to first pistons and a second crankshaft coupled to second pistons which are disposed in opposition to the first pistons in cylinders of the engine, a respective crank gear attached to each crankshaft, and an idler gear connecting the crank gears. The gear train comprises a three-gear system that is configured to minimize the side loads on the crankshafts, as well as on an idler gear post.Type: ApplicationFiled: April 11, 2019Publication date: August 29, 2019Applicant: Achates Power, INC.Inventors: SUMANTH KASHYAP, John M. Kessler, Paul Meckl, Fabien G. Redon, Sebastian Strauss
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Patent number: 10215221Abstract: A rocking journal bearing is provided in a piston coupling mechanism. The bearing includes a sleeve and a wristpin constructed with two sets of eccentrically-disposed bearing surfaces which alternate in accepting a compressive load during an operational cycle of the bearing. The sleeve includes a network of grooves to transport oil to the bearing surfaces. Lubricating oil flow through the bearing is minimized by limiting provision of pressurized oil from the wristpin to the network of grooves to portions of the cycle when one or the other of the sets of bearing surfaces receives the compressive load.Type: GrantFiled: March 16, 2018Date of Patent: February 26, 2019Assignee: ACHATES POWER, INC.Inventors: John M. Kessler, Clark A. Klyza
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Publication number: 20180202487Abstract: A rocking journal bearing is provided in a piston coupling mechanism. The bearing includes a sleeve and a wristpin constructed with two sets of eccentrically-disposed bearing surfaces which alternate in accepting a compressive load during an operational cycle of the bearing. The sleeve includes a network of grooves to transport oil to the bearing surfaces. Lubricating oil flow through the bearing is minimized by limiting provision of pressurized oil from the wristpin to the network of grooves to portions of the cycle when one or the other of the sets of bearing surfaces receives the compressive load.Type: ApplicationFiled: March 16, 2018Publication date: July 19, 2018Applicant: ACHATES POWER, INC.Inventors: JOHN M. KESSLER, Clark A. Klyza
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Patent number: 9926969Abstract: A rocking journal bearing is provided in a piston coupling mechanism. The bearing includes a sleeve and a wristpin constructed with two sets of eccentrically-disposed bearing surfaces which alternate in accepting a compressive load during an operational cycle of the bearing. The sleeve includes a network of grooves to transport oil to the bearing surfaces. Lubricating oil flow through the bearing is minimized by limiting provision of pressurized oil from the wristpin to the network of grooves to portions of the cycle when one or the other of the sets of bearing surfaces receives the compressive load.Type: GrantFiled: February 27, 2017Date of Patent: March 27, 2018Assignee: ACHATES POWER, INC.Inventors: John M. Kessler, Clark A. Klyza
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Patent number: 9797436Abstract: A rocking journal bearing is provided in a piston coupling mechanism of a two-stroke cycle engine. The bearing includes a sleeve and a wristpin constructed with two sets of eccentrically-disposed bearing surfaces which alternate in accepting a compressive load during an operational cycle of the bearing. The sleeve includes a network of grooves to transport oil to the bearing surfaces. Lubricating oil flow through the bearing is minimized by limiting provision of pressurized oil from the wristpin to the network of grooves to portions of the cycle when one or the other of the sets of bearing surfaces receives the compressive load.Type: GrantFiled: November 22, 2016Date of Patent: October 24, 2017Assignee: ACHATES POWER, INC.Inventors: John M. Kessler, Clark A. Klyza
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Publication number: 20170167531Abstract: A rocking journal bearing is provided in a piston coupling mechanism. The bearing includes a sleeve and a wristpin constructed with two sets of eccentrically-disposed bearing surfaces which alternate in accepting a compressive load during an operational cycle of the bearing. The sleeve includes a network of grooves to transport oil to the bearing surfaces. Lubricating oil flow through the bearing is minimized by limiting provision of pressurized oil from the wristpin to the network of grooves to portions of the cycle when one or the other of the sets of bearing surfaces receives the compressive load.Type: ApplicationFiled: February 27, 2017Publication date: June 15, 2017Applicant: ACHATES POWER,INC.Inventors: JOHN M. KESSLER, CLARK A. KLYZA
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Publication number: 20170122185Abstract: A compact construction for an opposed-piston engine includes a cylinder liner with longitudinally-spaced exhaust and intake ports in which the exhaust port has inner and outer edges presenting a port height that causes the exhaust port to be fully open before a piston associated with the exhaust port reaches bottom dead center during an expansion stroke and the end surface of the associated piston to be spaced outwardly of the outer edge when the piston is at bottom dead center.Type: ApplicationFiled: November 4, 2015Publication date: May 4, 2017Applicant: ACHATES POWER, INC.Inventor: John M. Kessler
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Publication number: 20170074315Abstract: A rocking journal bearing is provided in a piston coupling mechanism of a two-stroke cycle engine. The bearing includes a sleeve and a wristpin constructed with two sets of eccentrically-disposed bearing surfaces which alternate in accepting a compressive load during an operational cycle of the bearing. The sleeve includes a network of grooves to transport oil to the bearing surfaces. Lubricating oil flow through the bearing is minimized by limiting provision of pressurized oil from the wristpin to the network of grooves to portions of the cycle when one or the other of the sets of bearing surfaces receives the compressive load.Type: ApplicationFiled: November 22, 2016Publication date: March 16, 2017Applicant: ACHATES POWER, INC.Inventors: JOHN M. KESSLER, CLARK A. KLYZA
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Patent number: 9581187Abstract: A rocking journal bearing is provided in a piston coupling mechanism of a two-stroke cycle engine. The bearing includes a sleeve and a wristpin constructed with two sets of eccentrically-disposed bearing surfaces which alternate in accepting a compressive load during an operational cycle of the bearing. The sleeve includes a network of grooves to transport oil to the bearing surfaces. Lubricating oil flow through the bearing is minimized by limiting provision of pressurized oil from the wristpin to the network of grooves to portions of the cycle when one or the other of the sets of bearing surfaces receives the compressive load.Type: GrantFiled: June 5, 2015Date of Patent: February 28, 2017Assignee: ACHATES POWER, INC.Inventors: John M. Kessler, Clark A. Klyza
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Publication number: 20160356308Abstract: A rocking journal bearing is provided in a piston coupling mechanism of a two-stroke cycle engine. The bearing includes a sleeve and a wristpin constructed with two sets of eccentrically-disposed bearing surfaces which alternate in accepting a compressive load during an operational cycle of the bearing. The sleeve includes a network of grooves to transport oil to the bearing surfaces. Lubricating oil flow through the bearing is minimized by limiting provision of pressurized oil from the wristpin to the network of grooves to portions of the cycle when one or the other of the sets of bearing surfaces receives the compressive load.Type: ApplicationFiled: June 5, 2015Publication date: December 8, 2016Applicant: ACHATES POWER, INC.Inventors: John M. Kessler, Clark A. Klyza
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Patent number: 9038593Abstract: A lubricating configuration in a two-stroke cycle, opposed-piston engine for a piston wristpin minimizes losses in oil pressure at the wristpin as the piston approaches bottom center and reduces the required oil supply pressure to the engine. The wristpin is constructed to absorb and store oil pressure energy when oil pressure at the wristpin is high, and to release that stored energy to pressurize the oil at the wristpin when connecting rod oil pressure is low.Type: GrantFiled: November 8, 2013Date of Patent: May 26, 2015Assignee: Achates Power, Inc.Inventors: John M. Kessler, Clark A. Klyza
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Publication number: 20150128920Abstract: A lubricating configuration in a two-stroke cycle, opposed-piston engine for a piston wristpin minimizes losses in oil pressure at the wristpin as the piston approaches bottom center and reduces the required oil supply pressure to the engine. The wristpin is constructed to absorb and store oil pressure energy when oil pressure at the wristpin is high, and to release that stored energy to pressurize the oil at the wristpin when connecting rod oil pressure is low.Type: ApplicationFiled: November 8, 2013Publication date: May 14, 2015Applicant: Achates Power, Inc.Inventors: John M. Kessler, Clark A. Klyza