Patents by Inventor Eric Sharkness
Eric Sharkness 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: 20240019020Abstract: Systems and methods are presented herein for an interface that reduces loads transferred across the interface, wherein the interface couples a pair of independently actuated rotating shafts. A first tapered bearing is coupled to a first rotating shaft. A second tapered bearing is coupled to a second rotating shaft. A central bearing is arranged between the first rotating shaft and the second rotating shaft. The first rotating shaft and the second rotating shaft are preloaded against each other through the central bearing. The central bearing enables the forces generated by one rotating shaft to oppose and cancel out the forces generated by the second rotating shaft.Type: ApplicationFiled: July 15, 2022Publication date: January 18, 2024Inventors: Jefferey Ziemba, Eric Sharkness
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Patent number: 9878768Abstract: A marine transmission includes a synchronizer on a counter rotating shaft to shift into a high speed gear. The synchronizer includes friction surfaces on both sides of the gear body for the high speed gear. The high speed gear mesh is helical and generates axial force that enhances the torque carrying capacity of synchronizing friction surfaces, thereby enabling the shifting into the high speed gear without torque interrupt.Type: GrantFiled: August 5, 2015Date of Patent: January 30, 2018Assignee: Brunswick CorporationInventors: Joseph S. VanSelous, Eric Sharkness, Jiri Jager
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Patent number: 9133910Abstract: A marine transmission includes a synchronizer on a counter rotating shaft to shift into a high speed gear. The synchronizer includes friction surfaces on both sides of the gear body for the high speed gear. The high speed gear mesh is helical and generates axial force that enhances the torque carrying capacity of synchronizing friction surfaces, thereby enabling the shifting into the high speed gear without torque interrupt.Type: GrantFiled: March 15, 2013Date of Patent: September 15, 2015Assignee: Brunswick CorporationInventors: Joseph S. VanSelous, Eric Sharkness, Jiri Jager
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Patent number: 8523734Abstract: A multi-mode hybrid transmission for transmitting power from a prime mover and a stored source of energy to a final drive shaft. The transmission may include an input shaft to receive torque from the prime mover, a countershaft operatively coupled to the final drive shaft, a plurality of gear pairs each defining a torque path from the input shaft to the countershaft, a synchromesh clutch assembly to selectively couple the input shaft with a desired gear pair, and first and second electric machines rotatably carried by the input shaft. The first electric machine can provide a motive force to the final drive shaft and the second electric machine can covert rotary speed of the input shaft into electrical energy. Additionally, the first and second electric machines can provide supplemental torque to the output shaft during periods of reduced torque from the prime mover associated with a change in torque path.Type: GrantFiled: November 6, 2009Date of Patent: September 3, 2013Assignee: Ricardo, Inc.Inventors: Shaun E. Mepham, Jonathan P. Brentnall, Cameron P. Williams, Eric Sharkness, Felipe V. Brandao
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Publication number: 20130206533Abstract: Control systems and methods for a dual clutch transmission are provided. The control system includes a first pump for providing a first fluid to actuate the dual clutch assembly, a second pump for providing a second fluid to cool the dual clutch assembly, and a motor operatively coupled to the first and second pumps. The motor is operable in first and second directions, wherein the first pump is responsive to operation of the motor in the first direction and the second pump is responsive to operation of the motor in the second direction. The first and second pumps can be coupled to the motor about a common transfer shaft. By selectively reversing motor rotation, the motor drives the first and second pumps to provide a flow rate of hydraulic fluid and to provide a flow rate of lubricating fluid, respectively.Type: ApplicationFiled: February 4, 2011Publication date: August 15, 2013Applicant: RICARDO, INC.Inventors: Shaun E. Mepham, Eric Sharkness
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Publication number: 20100120580Abstract: A multi-mode hybrid transmission for transmitting power from a prime mover and a stored source of energy to a final drive shaft. The transmission may include an input shaft to receive torque from the prime mover, a countershaft operatively coupled to the final drive shaft, a plurality of gear pairs each defining a torque path from the input shaft to the countershaft, a synchromesh clutch assembly to selectively couple the input shaft with a desired gear pair, and first and second electric machines rotatably carried by the input shaft. The first electric machine can provide a motive force to the final drive shaft and the second electric machine can covert rotary speed of the input shaft into electrical energy. Additionally, the first and second electric machines can provide supplemental torque to the output shaft during periods of reduced torque from the prime mover associated with a change in torque path.Type: ApplicationFiled: November 6, 2009Publication date: May 13, 2010Applicant: RICARDO, INC.Inventors: Shaun E. Mepham, Jonathan P. Brentnall, Cameron P. Williams, Eric Sharkness, Felipe V. Brandao
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Patent number: 7032332Abstract: An electronic control for damping oscillation of a swinging backhoe assembly includes a crossover valve that connects the hydraulic lines that supply hydraulic fluid to the boom swing cylinders to each other whenever an electronic controller senses incipient oscillation or swinging of the backhoe assembly. The electronic controller senses such parameters as pressure in the conduits and the position of the operator controls or the position of the boom swing control valve that the operator controls to determine incipient oscillation when the backhoe assembly is stopped. The crossover valve may remain open for a predetermined period of time.Type: GrantFiled: May 22, 2003Date of Patent: April 25, 2006Assignee: CNH America LLCInventors: Eric Sharkness, Dennis Heyne, Richard J. Lech
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Patent number: 6941687Abstract: An electronic control for damping oscillation of a swinging backhoe assembly includes a crossover valve that connects the hydraulic lines that supply hydraulic fluid to the boom swing cylinders to each other whenever an electronic controller senses incipient oscillation or swinging of the backhoe assembly. The electronic controller senses such parameters as pressure in the conduits and the position of the operator controls or the position of the boom swing control valve that the operator controls to determine incipient oscillation when the backhoe assembly is stopped. The crossover valve may remain open for a predetermined period of time.Type: GrantFiled: September 25, 2001Date of Patent: September 13, 2005Assignee: CNH America LLCInventors: Eric Sharkness, Dennis Heyne, Richard J. Lech
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Patent number: 6886278Abstract: An electronic control for damping oscillation of a swinging backhoe assembly includes a crossover valve that connects the hydraulic lines that supply hydraulic fluid to the boom swing cylinders to each other whenever an electronic controller senses incipient oscillation or swinging of the backhoe assembly. The electronic controller senses such parameters as pressure in the conduits and the position of the operator controls or the position of the boom swing control valve that the operator controls to determine incipient oscillation when the backhoe assembly is stopped. The crossover valve may remain open for a predetermined period of time.Type: GrantFiled: May 22, 2003Date of Patent: May 3, 2005Assignee: CNH America LLCInventors: Eric Sharkness, Dennis Heyne, Richard J. Lech
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Publication number: 20030230010Abstract: An electronic control for damping oscillation of a swinging backhoe assembly includes a crossover valve that connects the hydraulic lines that supply hydraulic fluid to the boom swing cylinders to each other whenever an electronic controller senses incipient oscillation or swinging of the backhoe assembly. The electronic controller senses such parameters as pressure in the conduits and the position of the operator controls or the position of the boom swing control valve that the operator controls to determine incipient oscillation when the backhoe assembly is stopped. The crossover valve may remain open for a predetermined period of time.Type: ApplicationFiled: May 22, 2003Publication date: December 18, 2003Inventors: Eric Sharkness, Dennis Heyne, Richard J. Lech
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Publication number: 20030226292Abstract: An electronic control for damping oscillation of a swinging backhoe assembly includes a crossover valve that connects the hydraulic lines that supply hydraulic fluid to the boom swing cylinders to each other whenever an electronic controller senses incipient oscillation or swinging of the backhoe assembly. The electronic controller senses such parameters as pressure in the conduits and the position of the operator controls or the position of the boom swing control valve that the operator controls to determine incipient oscillation when the backhoe assembly is stopped. The crossover valve may remain open for a predetermined period of time.Type: ApplicationFiled: May 22, 2003Publication date: December 11, 2003Inventors: Eric Sharkness, Dennis Heyne, Richard J. Lech
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Patent number: 6647721Abstract: The invention provides a system for regulating pressure equalization in hydraulic mechanisms to suppress oscillation in heavy equipment. The system includes a first and second hydraulic lines, a crossover valve in communication with each of the first and second hydraulic lines, a timing system in communication with the crossover valve, and a motion detector in communication with a heavy equipment component. The motion detector senses a linkage motion and operatively opens the crossover valve, which remains open as directed by the timing system.Type: GrantFiled: November 7, 2001Date of Patent: November 18, 2003Assignee: Case, LLCInventors: Dennis Heyne, Richard J. Lech, Eric Sharkness, David W. Swaim, Guy T. Stoever, Ian MacLeod
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Patent number: 6640409Abstract: A method for retrofitting a swing damping circuit to a work vehicle such as a backhoe includes disconnecting a boom swing valve from a boom swing cylinder, and coupling the swing damping circuit to the boom swing valve. Alternatively, it may include replacing a boom swing valve with a combined boom swing valve and swing damping circuit that form a unitary valve body.Type: GrantFiled: September 25, 2001Date of Patent: November 4, 2003Assignee: Case CorporationInventors: Eric Sharkness, Dennis Heyne, Richard J. Lech
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Publication number: 20030084663Abstract: The invention provides a system for regulating pressure equalization in hydraulic mechanisms to suppress oscillation in heavy equipment. The system includes a first and second hydraulic lines, a crossover valve in communication with each of the first and second hydraulic lines, a timing system in communication with the crossover valve, and a motion detector in communication with a heavy equipment component. The motion detector senses a linkage motion and operatively opens the crossover valve, which remains open as directed by the timing system.Type: ApplicationFiled: November 7, 2001Publication date: May 8, 2003Inventors: Dennis Heyne, Richard J. Lech, Eric Sharkness, David W. Swaim, Guy T. Stoever, Ian MacLeod
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Publication number: 20030056353Abstract: A method for retrofitting a swing damping circuit to a work vehicle such as a backhoe includes disconnecting a boom swing valve from a boom swing cylinder, and coupling the swing damping circuit to the boom swing valve. Alternatively, it may include replacing a boom swing valve with a combined boom swing valve and swing damping circuit that form a unitary valve body.Type: ApplicationFiled: September 25, 2001Publication date: March 27, 2003Applicant: CASE CORPORATIONInventors: Eric Sharkness, Dennis Heyne, Richard J. Lech
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Publication number: 20030056405Abstract: An electronic control for damping oscillation of a swinging backhoe assembly includes a crossover valve that connects the hydraulic lines that supply hydraulic fluid to the boom swing cylinders to each other whenever an electronic controller senses incipient oscillation or swinging of the backhoe assembly. The electronic controller senses such parameters as pressure in the conduits and the position of the operator controls or the position of the boom swing control valve that the operator controls to determine incipient oscillation when the backhoe assembly is stopped. The crossover valve may remain open for a predetermined period of time.Type: ApplicationFiled: September 25, 2001Publication date: March 27, 2003Applicant: CASE CORPORATIONInventors: Eric Sharkness, Dennis Heyne, Richard J. Lech
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Patent number: 6532738Abstract: A system for damping incipient oscillation in a linkage such as a backhoe assembly includes a crossover valve that connects the two supply lines that provide hydraulic fluid to a linkage actuator such as a boom swing hydraulic cylinder. The crossover valve is configured to open in response to the deceleration of the backhoe assembly.Type: GrantFiled: September 25, 2001Date of Patent: March 18, 2003Assignee: Case CorporationInventors: Eric Sharkness, Dennis Heyne, Richard J. Lech
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Patent number: 6474064Abstract: The invention provides a system for regulating pressure equalization in hydraulic mechanisms to suppress oscillation in heavy equipment. The system includes a first and second hydraulic lines, a crossover valve in communication with each of the first and second hydraulic lines, a timing system in communication with the crossover valve, and a motion detector in communication with a heavy equipment component. The motion detector senses a linkage motion and operatively opens the crossover valve, which remains open as directed by the timing system.Type: GrantFiled: September 14, 2000Date of Patent: November 5, 2002Assignee: Case CorporationInventors: Dennis J. Heyne, Richard J. Lech, Eric Sharkness
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Publication number: 20020038548Abstract: A system for damping incipient oscillation in a linkage such as a backhoe assembly includes a crossover valve that connects the two supply lines that provide hydraulic fluid to a linkage actuator such as a boom swing hydraulic cylinder. The crossover valve is configured to open in response to the deceleration of the backhoe assembly.Type: ApplicationFiled: September 25, 2001Publication date: April 4, 2002Applicant: CASE CORPORATIONInventors: Eric Sharkness, Dennis Heyne, Richard J. Lech