Patents by Inventor David M. Ferreira
David M. Ferreira 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: 11941665Abstract: Systems and methods for providing an advertisement marketplace where buyers and sellers can trade linear mediacast advertisement inventory programmatically at local, national, and/or worldwide levels. The marketplace system may include a seller-controlled marketplace system which connects sellers with buyers and offers revenue management tools for optimizing yields across direct and programmatic channels. The advertisement inventory is bought and sold as canonical inventory units which group similar but discrete advertisement slots together. The marketplace system may include a real-time bidding (RTB) adapter through which digital advertising buyers may place bids for such inventory units using standard protocols utilized in digital RTB systems.Type: GrantFiled: September 28, 2016Date of Patent: March 26, 2024Assignee: WideOrbit LLCInventors: Tyler Wallace Box, David Bridges, Brian M. Burdick, Geoffrey P. Coco, Ian P. Ferreira, Paul Jaffe, Alfred Lawrence Shiels, Brian Thoman, Sean Trigony
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Patent number: 11156135Abstract: A combined dedicated braking and EEVO lost motion valve actuation systems for internal combustion engines provide subsystems for braking events and EEVO events on one or more cylinders. Various control strategies may utilize braking and EEVO capabilities to module one or more engine parameters, including aftertreatment temperature and engine load.Type: GrantFiled: July 16, 2019Date of Patent: October 26, 2021Assignee: JACOBS VEHICLE SYSTEMS, INC.Inventors: Justin D. Baltrucki, David M. Ferreira
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Patent number: 11060426Abstract: A switching finger follower for an engine valve train utilizes an adjustable support assembly that eliminates potential for partial engagement during operation. A lever engagement member or latch is disposed for movement on the follower body and interacts with a lever to provide a constant contact geometry. The finger follower may be configured as a lost motion device and may include a biasing assembly and a travel limiter. The latch may support the lever in at least one precise position and may support the lever in a second position for partial lost motion, or permit the lever to pivot free of the latch for complete lost motion, as in cylinder deactivation applications.Type: GrantFiled: December 6, 2019Date of Patent: July 13, 2021Assignee: JACOBS VEHICLE SYSTEMS, INC.Inventors: John Mandell, Justin D. Baltrucki, David M. Ferreira
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Patent number: 10774693Abstract: Variable-length assemblies, including lost motion assemblies eliminate hydraulic or pneumatic working fluids for operation in internal combustion engine valve trains and may be integrated into valve rocker arm pivots. An example piston and actuating plate are provided with working surfaces that interact when the actuating plate is rotated relative to the piston. The working surfaces include ramped transition portions and may include upper and lower flat portions. A shallow ramp angle prevents counter-rotation of the actuating plate under load. Actuating assemblies include an actuating solenoid includes a plunger that engages and pivots the actuating arm to cause rotation of the actuating plate relative to the piston and changes the state of the lost motion assembly from an “off” state, where motion may be absorbed, to an “on” state where the lost motion assembly is rigid and does not absorb motion.Type: GrantFiled: October 4, 2018Date of Patent: September 15, 2020Assignee: JACOBS VEHICLE SYSTEMS, INC.Inventors: Justin D. Baltrucki, David M. Ferreira
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Publication number: 20200182107Abstract: A switching finger follower for an engine valve train utilizes an adjustable support assembly that eliminates potential for partial engagement during operation. A lever engagement member or latch is disposed for movement on the follower body and interacts with a lever to provide a constant contact geometry. The finger follower may be configured as a lost motion device and may include a biasing assembly and a travel limiter. The latch may support the lever in at least one precise position and may support the lever in a second position for partial lost motion, or permit the lever to pivot free of the latch for complete lost motion, as in cylinder deactivation applications.Type: ApplicationFiled: December 6, 2019Publication date: June 11, 2020Inventors: John MANDELL, Justin D. BALTRUCKI, David M. FERREIRA
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Patent number: 10634019Abstract: Systems for valve actuation in internal combustion engines with a dedicated rocker for actuating the at least one of two or more engine valves in a braking operation may include a biasing component, such as a compression spring, tension spring, spring catch, hydraulic actuator, pneumatic actuator for biasing the dedicated rocker in a biased direction away from the motion source, and a limiting component, such as a physical stop including a set screw or a stop integrated in the biasing component, for limiting the motion of the dedicated rocker in the biased direction. The biasing component and limiting component maintain the dedicated rocker in a controlled state and a positive, neutral position during operation.Type: GrantFiled: March 7, 2019Date of Patent: April 28, 2020Assignee: Jacobs Vehicle Systems, Inc.Inventors: John Mandell, David M. Ferreira, Gabriel S. Roberts
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Publication number: 20200109648Abstract: Variable-length assemblies, including lost motion assemblies eliminate hydraulic or pneumatic working fluids for operation in internal combustion engine valve trains and may be integrated into valve rocker arm pivots. An example piston and actuating plate are provided with working surfaces that interact when the actuating plate is rotated relative to the piston. The working surfaces include ramped transition portions and may include upper and lower flat portions. A shallow ramp angle prevents counter-rotation of the actuating plate under load. Actuating assemblies include an actuating solenoid includes a plunger that engages and pivots the actuating arm to cause rotation of the actuating plate relative to the piston and changes the state of the lost motion assembly from an “off” state, where motion may be absorbed, to an “on” state where the lost motion assembly is rigid and does not absorb motion.Type: ApplicationFiled: October 4, 2018Publication date: April 9, 2020Inventors: Justin D. BALTRUCKI, David M. FERREIRA
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Patent number: 10590810Abstract: Systems for valve actuation in internal combustion engines provide configurations for hydraulic lash adjusters and valve actuation valvetrain components that are particularly suitable for prevention of HLA jacking in lost motion cam environments and in valve bridge environments. In one implementation, a rocker arm may transmit motion from a lost motion cam having main event and auxiliary event lobes. Main event motion is transmitted to two engine valves through the rocker arm, a lash adjuster, lash adjuster loading component and valve bridge, which define part of a first load path. Braking motion is transmitted to one of the engine valves through an inboard valve actuator and bridge pin, which define part of a second load path. The HLA is thus disposed in a separate load path from the braking valve load and the lash adjuster loading component keeps the lash adjuster under a constant compressive force to prevent jacking.Type: GrantFiled: November 10, 2018Date of Patent: March 17, 2020Assignee: Jacobs Vehicle Systems, Inc.Inventors: David M. Ferreira, Gabriel S. Roberts, Justin D. Baltrucki
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Publication number: 20200018243Abstract: A combined dedicated braking and EEVO lost motion valve actuation systems for internal combustion engines provide subsystems for braking events and EEVO events on one or more cylinders. Various control strategies may utilize braking and EEVO capabilities to module one or more engine parameters, including aftertreatment temperature and engine load.Type: ApplicationFiled: July 16, 2019Publication date: January 16, 2020Inventors: Justin D. BALTRUCKI, David M. FERREIRA
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Publication number: 20190277170Abstract: Systems for valve actuation in internal combustion engines with a dedicated rocker for actuating the at least one of two or more engine valves in a braking operation may include a biasing component, such as a compression spring, tension spring, spring catch, hydraulic actuator, pneumatic actuator for biasing the dedicated rocker in a biased direction away from the motion source, and a limiting component, such as a physical stop including a set screw or a stop integrated in the biasing component, for limiting the motion of the dedicated rocker in the biased direction. The biasing component and limiting component maintain the dedicated rocker in a controlled state and a positive, neutral position during operation.Type: ApplicationFiled: March 7, 2019Publication date: September 12, 2019Inventors: John MANDELL, David M. FERREIRA, Gabriel S. ROBERTS
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Publication number: 20190145289Abstract: Systems for valve actuation in internal combustion engines provide configurations for hydraulic lash adjusters and valve actuation valvetrain components that are particularly suitable for prevention of HLA jacking in lost motion cam environments and in valve bridge environments. In one implementation, a rocker arm may transmit motion from a lost motion cam having main event and auxiliary event lobes. Main event motion is transmitted to two engine valves through the rocker arm, a lash adjuster, lash adjuster loading component and valve bridge, which define part of a first load path. Braking motion is transmitted to one of the engine valves through an inboard valve actuator and bridge pin, which define part of a second load path. The HLA is thus disposed in a separate load path from the braking valve load and the lash adjuster loading component keeps the lash adjuster under a constant compressive force to prevent jacking.Type: ApplicationFiled: November 10, 2018Publication date: May 16, 2019Inventors: David M. FERREIRA, Gabriel S. ROBERTS, Justin D. BALTRUCKI
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Patent number: 7409860Abstract: A fuel level measurement device has a fuel level sensor carried by a fuel level float at the distal end of a pivoting float arm of the device which is preferably part of a fuel pump module located inside of a fuel tank preferably for automotive applications. Preferably a sealed arcuate chamber of the float is defined between an electrically conductive cover and a variable electric resistor which preferably is a generally non-conductive ceramic substrate that carries an electrically resistive ink strip. A track exposed in the arcuate chamber has a concave shape that generally faces upward so that a rolling member changes position due to the forces of gravity within the chamber as the float arm pivots generally up and down with changing fuel levels in the tank. The rolling member is electrically conductive and completes the circuit between the electrically conductive cover and the variable resistive ink strip.Type: GrantFiled: February 14, 2006Date of Patent: August 12, 2008Assignee: TI Group Automotive Systems, L.L.C.Inventors: David M. Ferreira, Mark R. Johansen