Patents by Inventor Bennett Sprague
Bennett Sprague 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: 10964502Abstract: An electromagnetic switch including a first stationary electric contact, a second stationary electric contact, a mechanical contact, and a moveable contact. The electromagnetic switch is configured for reciprocal motion of the moveable contact into and out of contact with the first stationary electric contact and the second stationary electric contact, wherein the moveable contact remains in contact with the mechanical contact (e.g., a non-conducting contact) throughout the reciprocal motion. In various embodiments, the moveable contact is configured so that at the end of the reciprocal motion three contact points occur, and a triangle defined by the three contact points encloses a center of force of the reciprocal motion.Type: GrantFiled: December 7, 2018Date of Patent: March 30, 2021Assignee: Tesla, Inc.Inventors: Bennett Sprague, Ian C. Dimen, Scott I. Kohn, Andrew Titus, Jeffrey G. Reichbach, Gregory Michael Goetchius, Garland Dughi
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Publication number: 20190108958Abstract: An electromagnetic switch including a first stationary electric contact, a second stationary electric contact, a mechanical contact, and a moveable contact. The electromagnetic switch is configured for reciprocal motion of the moveable contact into and out of contact with the first stationary electric contact and the second stationary electric contact, wherein the moveable contact remains in contact with the mechanical contact (e.g., a non-conducting contact) throughout the reciprocal motion. In various embodiments, the moveable contact is configured so that at the end of the reciprocal motion three contact points occur, and a triangle defined by the three contact points encloses a center of force of the reciprocal motion.Type: ApplicationFiled: December 7, 2018Publication date: April 11, 2019Applicant: Tesla, Inc.Inventors: Bennett Sprague, Ian C. Dimen, Scott I. Kohn, Andrew Titus, Jeffrey G. Reichbach, Gregory Michael Goetchius, Garland Dughi
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Patent number: 10153116Abstract: An electromagnetic switch includes: at least two stationary electric contacts; and a moveable contact, wherein the electromagnetic switch is configured for reciprocal motion of the moveable contact into and out of contact with the stationary electric contacts, wherein the moveable contact is configured so that at least three contact points occur in the reciprocal motion, and so that a triangle defined by the at least three contact points encloses a center of force of the movement.Type: GrantFiled: December 2, 2013Date of Patent: December 11, 2018Assignee: TESLA, INC.Inventors: Bennett Sprague, Ian C. Dimen, Scott I. Kohn, Andrew Titus, Jeffrey G. Reichbach, Gregory Michael Goetchius, Garland Dughi
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Patent number: 9373471Abstract: An electromagnetic switch includes: a stationary electrical contact; a moveable electrical contact; an actuated member to which the moveable electrical contact is attached for driving the moveable electrical contact into and out of contact with the stationary electrical contact; and a damping interface between the moveable electrical contact and the actuated member.Type: GrantFiled: December 2, 2013Date of Patent: June 21, 2016Assignee: TESLA MOTORS, INC.Inventors: Mark Goldman, Ian C. Dimen, Bennett Sprague
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Publication number: 20150303016Abstract: An electromagnetic switch includes: at least two stationary electric contacts; and a moveable contact, wherein the electromagnetic switch is configured for reciprocal motion of the moveable contact into and out of contact with the stationary electric contacts, wherein the moveable contact is configured so that at least three contact points occur in the reciprocal motion, and so that a triangle defined by the at least three contact points encloses a center of force of the movement.Type: ApplicationFiled: December 2, 2013Publication date: October 22, 2015Inventors: Bennett Sprague, Ian C. Dimen, Scott L. Kohn, Andrew Titus, Jeffrey G. Reichbach, Gregory Michael Goetchius, Garland Dughi
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Publication number: 20150155112Abstract: An electromagnetic switch includes: a stationary electrical contact; a moveable electrical contact; an actuated member to which the moveable electrical contact is attached for driving the moveable electrical contact into and out of contact with the stationary electrical contact; and a damping interface between the moveable electrical contact and the actuated member.Type: ApplicationFiled: December 2, 2013Publication date: June 4, 2015Applicant: Tesla Motors, Inc.Inventors: Mark Goldman, Ian C. Dimen, Bennett Sprague
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Patent number: 7249596Abstract: A fuel system for use in an internal combustion engine includes a plurality of fuel injectors, each injector including at least one capillary flow passage, the at least one capillary flow passage having an inlet end and an outlet end, a heat source arranged along the at least one capillary flow passage, the heat source operable to heat a liquid fuel in the at least one capillary flow passage to a level sufficient to convert at least a portion thereof from the liquid state to a vapor state, and a valve for metering fuel to the internal combustion engine, a controller to control the power supplied to the heat source of each of the plurality of fuel injectors to achieve a predetermined target temperature, a sensor for use in determining engine air flow and a sensor for measuring a value indicative of degree of engine warm-up of the internal combustion engine.Type: GrantFiled: May 26, 2005Date of Patent: July 31, 2007Assignee: Philip Morris USA Inc.Inventors: Roberto O. Pellizzari, John Baron, Jan-Roger Linna, Peter Loftus, Peter Palmer, John Paul Mello, Stuart Bennett Sprague
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Patent number: 7137383Abstract: A fuel injector for vaporizing a liquid fuel for use in an internal combustion engine. The fuel injector includes at least one capillary flow passage, a heat source arranged along the at least one capillary flow passage, the heat source operable to heat the liquid fuel in the at least one capillary flow passage to a level sufficient to change at least a portion thereof from the liquid state to a vapor state and deliver a stream of substantially vaporized fuel from the outlet end of the at least one capillary flow passage; and a valve for metering fuel to the internal combustion engine, the valve located proximate to the outlet end of the at least one capillary flow passage, the valve including a low mass member for substantially occluding the stream of fuel to the internal combustion engine; wherein the low mass member for substantially occluding the stream of fuel to the internal combustion engine is formed of a material having low mass and or a low coefficient of thermal conductivity.Type: GrantFiled: October 19, 2004Date of Patent: November 21, 2006Assignee: Philip Morris USA Inc.Inventors: Jan-Roger Linna, John Baron, Roberto O. Pellizzari, Peter Loftus, Peter Palmer, John Paul Mello, Stuart Bennett Sprague
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Patent number: 7059307Abstract: A fuel injector for vaporizing a liquid fuel for use in an internal combustion engine. The fuel injector includes at least one capillary flow passage, the at least one capillary flow passage having an inlet end and an outlet end, a fluid control valve for placing the inlet end of the at least one capillary flow passage in fluid communication with the liquid fuel source and introducing the liquid fuel in a substantially liquid state, a heat source arranged along the at least one capillary flow passage, the heat source operable to heat the liquid fuel in the at least one capillary flow passage to a level sufficient to change at least a portion thereof from the liquid state to a vapor state and deliver a stream of substantially vaporized fuel from the outlet end of the at least one capillary flow passage and means for cleaning deposits formed during operation of the apparatus. The fuel injector is effective in reducing cold-start and warm-up emissions of an internal combustion engine.Type: GrantFiled: June 17, 2004Date of Patent: June 13, 2006Assignee: Philip Morris USA Inc.Inventors: Roberto O. Pellizzari, John Baron, Jan-Roger Linna, Peter Loftus, Peter Palmer, John Paul Mello, Stuart Bennett Sprague
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Patent number: 6913004Abstract: A fuel system for use in an internal combustion engine includes a plurality of fuel injectors, each injector including at least one capillary flow passage, the at least one capillary flow passage having an inlet end and an outlet end, a heat source arranged along the at least one capillary flow passage, the heat source operable to heat a liquid fuel in the at least one capillary flow passage to a level sufficient to convert at least a portion thereof from the liquid state to a vapor state, and a valve for metering fuel to the internal combustion engine, a controller to control the power supplied to the heat source of each of the plurality of fuel injectors to achieve a predetermined target temperature, a sensor for use in determining engine air flow and a sensor for measuring a value indicative of degree of engine warm-up of the internal combustion engine.Type: GrantFiled: October 31, 2002Date of Patent: July 5, 2005Assignee: Chrysalis Technologies IncorporatedInventors: Roberto O. Pellizzari, John Baron, Jan Roger Linna, Peter Loftus, Peter Palmer, John Paul Mello, Stuart Bennett Sprague
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Patent number: 6845760Abstract: An apparatus and method for improving the transient response of a spark-ignited fuel-injected internal combustion engine is disclosed. This is accomplished by employing one or more novel capillary fuel injectors. These devices are port fuel injectors modified by inserting one or more relatively small diameter heated tubular capillaries between the fuel line and a conventional injector. Sufficient heating can be produced so that flash vaporization occurs as the fuel exits the injector. The heaters are turned on using control algorithms that can be based on exhaust gas oxygen concentration, load on the engine, and accelerator pedal position.Type: GrantFiled: January 15, 2004Date of Patent: January 25, 2005Assignee: Chrysalis Technologies IncorporatedInventors: Jan-Roger Linna, Peter Palmer, John Paul Mello, Stuart Bennett Sprague
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Publication number: 20040265519Abstract: Method for forming a fluid conduit comprising (a) molding a template having at least a part thereof corresponding to an internal geometry of the conduit; (b) coating a layer on an exposed surface of the template; and (c) removing the template. A wide variety of conduit shapes can be economically manufactured, including those having small dimensions and high design tolerances. Fluid vaporizing devices, which can be used to deliver fluids and/or generate aerosols including capillary tubes with finished or activated inner surfaces, can be manufactured.Type: ApplicationFiled: June 27, 2003Publication date: December 30, 2004Inventors: Roberto O. Pellizzari, Bennett Sprague, Eric J. Carlson
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Patent number: 6820598Abstract: A fuel injector for vaporizing a liquid fuel for use in an internal combustion engine. The fuel injector includes at least one capillary flow passage, a heat source arranged along the at least one capillary flow passage, the heat source operable to heat the liquid fuel in the at least one capillary flow passage to a level sufficient to change at least a portion thereof from the liquid state to a vapor state and deliver a stream of substantially vaporized fuel from the outlet end of the at least one capillary flow passage; and a valve for metering fuel to the internal combustion engine, the valve located proximate to the outlet end of the at least one capillary flow passage, the valve including a low mass member for substantially occluding the stream of fuel to the internal combustion engine; wherein the low mass member for substantially occluding the stream of fuel to the internal combustion engine is formed of a material having low mass and or a low coefficient of thermal conductivity.Type: GrantFiled: January 15, 2003Date of Patent: November 23, 2004Assignee: Chrysalis Technologies IncorporatedInventors: Roberto O. Pellizzari, John Baron, Jan Roger Linna, Peter Loftus, Peter Palmer, John Paul Mello, Stuart Bennett Sprague
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Publication number: 20040226546Abstract: A fuel injector for vaporizing a liquid fuel for use in an internal combustion engine. The fuel injector includes at least one capillary flow passage, the at least one capillary flow passage having an inlet end and an outlet end, a fluid control valve for placing the inlet end of the at least one capillary flow passage in fluid communication with the liquid fuel source and introducing the liquid fuel in a substantially liquid state, a heat source arranged along the at least one capillary flow passage, the heat source operable to heat the liquid fuel in the at least one capillary flow passage to a level sufficient to change at least a portion thereof from the liquid state to a vapor state and deliver a stream of substantially vaporized fuel from the outlet end of the at least one capillary flow passage and means for cleaning deposits formed during operation of the apparatus. The fuel injector is effective in reducing cold-start and warm-up emissions of an internal combustion engine.Type: ApplicationFiled: June 17, 2004Publication date: November 18, 2004Inventors: Roberto O. Pellizzari, John Baron, Jan Roger Linna, Peter Loftus, Peter Palmer, John Paul Mello, Stuart Bennett Sprague
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Publication number: 20040182375Abstract: An apparatus and method for improving the transient response of a spark-ignited fuel-injected internal combustion engine is disclosed. This is accomplished by employing one or more novel capillary fuel injectors. These devices are port fuel injectors modified by inserting one or more relatively small diameter heated tubular capillaries between the fuel line and a conventional injector. Sufficient heating can be produced so that flash vaporization occurs as the fuel exits the injector. The heaters are turned on using control algorithms that can be based on exhaust gas oxygen concentration, load on the engine, and accelerator pedal position.Type: ApplicationFiled: January 15, 2004Publication date: September 23, 2004Inventors: Jan-Roger Linna, Peter Palmer, John Paul Mello, Stuart Bennett Sprague
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Patent number: 6779513Abstract: A fuel injector for vaporizing a liquid fuel for use in an internal combustion engine. The fuel injector includes at least one capillary flow passage, the at least one capillary flow passage having an inlet end and an outlet end, a fluid control valve for placing the inlet end of the at least one capillary flow passage in fluid communication with the liquid fuel source and introducing the liquid fuel in a substantially liquid state, a heat source arranged along the at least one capillary flow passage, the heat source operable to heat the liquid fuel in the at least one capillary flow passage to a level sufficient to change at least a portion thereof from the liquid state to a vapor state and deliver a stream of substantially vaporized fuel from the outlet end of the at least one capillary flow passage and means for cleaning deposits formed during operation of the apparatus. The fuel injector is effective in reducing cold-start and warm-up emissions of an internal combustion engine.Type: GrantFiled: May 10, 2002Date of Patent: August 24, 2004Assignee: Chrysalis Technologies IncorporatedInventors: Roberto O. Pellizzari, John Baron, Jan Roger Linna, Peter Loftus, Peter Palmer, John Paul Mello, Stuart Bennett Sprague
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Publication number: 20030178010Abstract: A fuel system for use in an internal combustion engine includes a plurality of fuel injectors, each injector including at least one capillary flow passage, the at least one capillary flow passage having an inlet end and an outlet end, a heat source arranged along the at least one capillary flow passage, the heat source operable to heat a liquid fuel in the at least one capillary flow passage to a level sufficient to convert at least a portion thereof from the liquid state to a vapor state, and a valve for metering fuel to the internal combustion engine, a controller to control the power supplied to the heat source of each of the plurality of fuel injectors to achieve a predetermined target temperature, a sensor for use in determining engine air flow and a sensor for measuring a value indicative of degree of engine warm-up of the internal combustion engine.Type: ApplicationFiled: October 31, 2002Publication date: September 25, 2003Inventors: Roberto O. Pellizzari, John Baron, Jan Roger Linna, Peter Loftus, Peter Palmer, John Paul Mello, Stuart Bennett Sprague
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Publication number: 20030178009Abstract: A fuel injector for vaporizing a liquid fuel for use in an internal combustion engine. The fuel injector includes at least one capillary flow passage, the at least one capillary flow passage having an inlet end and an outlet end, a fluid control valve for placing the inlet end of the at least one capillary flow passage in fluid communication with the liquid fuel source and introducing the liquid fuel in a substantially liquid state, a heat source arranged along the at least one capillary flow passage, the heat source operable to heat the liquid fuel in the at least one capillary flow passage to a level sufficient to change at least a portion thereof from the liquid state to a vapor state and deliver a stream of substantially vaporized fuel from the outlet end of the at least one capillary flow passage and means for cleaning deposits formed during operation of the apparatus. The fuel injector is effective in reducing cold-start and warm-up emissions of an internal combustion engine.Type: ApplicationFiled: May 10, 2002Publication date: September 25, 2003Inventors: Roberto O. Pellizzari, John Baron, Jan Roger Linna, Peter Loftus, Peter Palmer, John Paul Mello, Stuart Bennett Sprague
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Publication number: 20030178011Abstract: A fuel injector for vaporizing a liquid fuel for use in an internal combustion engine. The fuel injector includes at least one capillary flow passage, a heat source arranged along the at least one capillary flow passage, the heat source operable to heat the liquid fuel in the at least one capillary flow passage to a level sufficient to change at least a portion thereof from the liquid state to a vapor state and deliver a stream of substantially vaporized fuel from the outlet end of the at least one capillary flow passage; and a valve for metering fuel to the internal combustion engine, the valve located proximate to the outlet end of the at least one capillary flow passage, the valve including a low mass member for substantially occluding the stream of fuel to the internal combustion engine; wherein the low mass member for substantially occluding the stream of fuel to the internal combustion engine is formed of a material having low mass and or a low coefficient of thermal conductivity.Type: ApplicationFiled: January 15, 2003Publication date: September 25, 2003Inventors: Roberto O. Pellizzari, John Baron, Jan Roger Linna, Peter Loftus, Peter Palmer, John Paul Mello, Stuart Bennett Sprague