Patents by Inventor John Schafer
John Schafer 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: 20230237926Abstract: Systems and methods for cognitive training using voice command are described. One aspect includes a device to repeatedly present visual stimuli to a user that require performance of a task. A microphone may be positioned to provide audio input from the user to the device, with the audio input from the user providing input required to measure task performance. A processing system may perform real-time analysis of measured task performance.Type: ApplicationFiled: January 24, 2023Publication date: July 27, 2023Inventors: Aaron Kaluszka, Robert John Schafer
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Patent number: 11000926Abstract: A fastener feed head includes a chute having a feed passage along a feed axis to support and guide fasteners from a chute inlet to a chute outlet connected to a fastener installation head. A carriage is movably attached to the chute along a feed axis. Opposed pawls are pivotably attached to the carriage. The carriage reciprocates along the feed axis between a retracted position and a feed position. The carriage cyclically advances a predetermined number of fasteners from a queue of fasteners in an upstream zone into a queue of fasteners in a downstream zone by: retracting to the retracted position from the feed position; abutting the lead fastener in the upstream queue with the pawls; and, driving the lead fastener with the pawls until the carriage reaches the feed position.Type: GrantFiled: December 20, 2017Date of Patent: May 11, 2021Assignee: Penn Automotive, Inc.Inventors: Brian Wilkins, John Ryan Taylor, Robert John Schafer
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Patent number: 10811988Abstract: Power management apparatuses and systems utilizing synchronous common coupling. A power management apparatus may include a plurality of ports and a plurality of electrically isolated stacks connected through a synchronous common coupling. Each electrically isolated stack may include a plurality of cascaded stages and may be connected to a source or load through one of the plurality of ports. The synchronous common coupling connects only power between each of the plurality of electrically isolated stacks and is configured to maintain electrical isolation for each of the plurality of stages in the plurality of electrically isolated stacks.Type: GrantFiled: September 15, 2017Date of Patent: October 20, 2020Assignee: Resilient Power Systems, LLCInventors: Lyle Thomas Keister, Joshua David Keister, Bradley John Schafer, Albert Andreas Maria Esser
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Patent number: 10608545Abstract: Apparatuses, systems, and methods for managing power utilizing synchronous common coupling. An apparatus comprises a synchronous common coupling, a plurality of ports, and a plurality of stacks connected through the synchronous common coupling. Each stack comprises at least one stage, with each stage comprising at least one source/load bridge, at least one flux bridge, and a DC bus. The at least one source/load bridge of one stage of each stack is connected to a source or load through one of the plurality of ports, the at least one flux bridge of each stage is connected to an electrically isolated winding in the synchronous common coupling, and the at least one flux bridge of each stage is connected to the at least one source/load bridge of the stage through the DC bus. The synchronous common coupling is configured to exchange power between each of the plurality of stacks.Type: GrantFiled: March 8, 2018Date of Patent: March 31, 2020Assignee: Resilient Power Systems, LLCInventors: Lyle Thomas Keister, Joshua David Keister, Bradley John Schafer, Albert Andreas Maria Esser
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Publication number: 20190184504Abstract: A fastener feed head includes a chute having a feed passage along a feed axis to support and guide fasteners from a chute inlet to a chute outlet connected to a fastener installation head. A carriage is movably attached to the chute along a feed axis. Opposed pawls are pivotably attached to the carriage. The carriage reciprocates along the feed axis between a retracted position and a feed position. The carriage cyclically advances a predetermined number of fasteners from a queue of fasteners in an upstream zone into a queue of fasteners in a downstream zone by: retracting to the retracted position from the feed position; abutting the lead fastener in the upstream queue with the pawls; and, driving the lead fastener with the pawls until the carriage reaches the feed position.Type: ApplicationFiled: December 20, 2017Publication date: June 20, 2019Inventors: Brian Wilkins, John Ryan Taylor, Robert John Schafer
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Publication number: 20180301980Abstract: The present disclosure relates to power management apparatuses, systems, and methods utilizing a blocker stage. A power management apparatus may include a blocking string including a plurality of blocker stages connected in series, and each blocker stage may include at least one switch and at least one energy absorbing component. The apparatus may include a voltage/current monitor configured to monitor a power flow and generate current feedback and voltage feedback. The apparatus may further include a central controller coupled to the voltage/current monitor and configured to switch the energy absorbing components into or out of the power flow by synchronously turning the at least one switch of each of the plurality of blocker stages on or off based on the current feedback and the voltage feedback, where the plurality of blocker stages effectively act as a single blocking component.Type: ApplicationFiled: April 13, 2017Publication date: October 18, 2018Inventors: Lyle Thomas Keister, Joshua David Keister, Bradley John Schafer
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Publication number: 20180198377Abstract: Apparatuses, systems, and methods for managing power utilizing synchronous common coupling. An apparatus comprises a synchronous common coupling, a plurality of ports, and a plurality of stacks connected through the synchronous common coupling. Each stack comprises at least one stage, with each stage comprising at least one source/load bridge, at least one flux bridge, and a DC bus. The at least one source/load bridge of one stage of each stack is connected to a source or load through one of the plurality of ports, the at least one flux bridge of each stage is connected to an electrically isolated winding in the synchronous common coupling, and the at least one flux bridge of each stage is connected to the at least one source/load bridge of the stage through the DC bus. The synchronous common coupling is configured to exchange power between each of the plurality of stacks.Type: ApplicationFiled: March 8, 2018Publication date: July 12, 2018Inventors: Lyle Thomas Keister, Joshua David Keister, Bradley John Schafer, Albert Andreas Maria Esser
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Patent number: 9906155Abstract: The present disclosure relates to power management systems utilizing a high-frequency low voltage pre-charge. A power management system may comprise a low voltage power source, a power supply assembly connected to the low voltage power source, and a power module comprising a plurality of arrays. Each array may comprise a plurality of electrically isolated stacks connected through a synchronous common coupling. Each electrically isolated stack may comprise a plurality of stages, a multi-winding secondary, a pre-charge circuit connected to at least one of the plurality of stages, and a plurality of multi-winding isolated power supplies. Each multi-winding isolated power supply may be connected to one of the plurality of stages. The power supply assembly may be configured to supply charging current from the low voltage power source to at least one of the plurality of electrically isolated stacks.Type: GrantFiled: January 30, 2017Date of Patent: February 27, 2018Assignee: Resilient Power Systems, LLCInventors: Lyle Thomas Keister, Joshua David Keister, Bradley John Schafer, Albert Andreas Maria Esser
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Publication number: 20180006570Abstract: The present disclosure relates to power management apparatuses and systems utilizing synchronous common coupling. A power management apparatus may comprise a plurality of ports, and a plurality of electrically isolated stacks connected through a synchronous common coupling. Each electrically isolated stack may include a plurality of cascaded stages and connected to a source or load through one of the plurality of ports. The synchronous common coupling connects may only power between each of the plurality of electrically isolated stacks and is configured to maintain electrical isolation for each of the plurality of stages in the plurality of electrically isolated stacks.Type: ApplicationFiled: September 15, 2017Publication date: January 4, 2018Inventors: Lyle Thomas Keister, Joshua David Keister, Bradley John Schafer, Albert Andreas Maria Esser
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Patent number: 9803943Abstract: A firearm magazine guard unit including an attachment unit affixed to the firearm magazine guard unit, a magazine ejection unit rotatively affixed to the firearm magazine guard unit, where a portion of the magazine ejection unit is in contact with the magazine when the magazine is inserted into the firearm magazine guard unit.Type: GrantFiled: March 4, 2016Date of Patent: October 31, 2017Assignee: Iron Claw Tactical LLCInventors: John Schafer, Maura Schafer, Louis Papamihail
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Patent number: 9780682Abstract: The present disclosure relates to power management apparatuses and systems utilizing synchronous common coupling. A power management apparatus may include a synchronous common coupling, a plurality of ports, and a plurality of electrically isolated stacks connected through the synchronous common coupling. Each electrically isolated stack may include at least one stage, each stage including a source/load bridge, a flux bridge, and a direct current (DC) bus. The source/load bridge may be connected to a source or load through one of the plurality of ports, the flux bridge may be connected to an electrically isolated winding in the synchronous common coupling, and the flux bridge may be connected to the source/load bridge through the DC bus.Type: GrantFiled: October 4, 2016Date of Patent: October 3, 2017Assignee: Resilient Power Systems, LLCInventors: Lyle Thomas Keister, Joshua David Keister, Bradley John Schafer, Albert Andreas Maria Esser
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Publication number: 20170141694Abstract: The present disclosure relates to power management systems utilizing a high-frequency low voltage pre-charge. A power management system may comprise a low voltage power source, a power supply assembly connected to the low voltage power source, and a power module comprising a plurality of arrays. Each array may comprise a plurality of electrically isolated stacks connected through a synchronous common coupling. Each electrically isolated stack may comprise a plurality of stages, a multi-winding secondary, a pre-charge circuit connected to at least one of the plurality of stages, and a plurality of multi-winding isolated power supplies. Each multi-winding isolated power supply may be connected to one of the plurality of stages. The power supply assembly may be configured to supply charging current from the low voltage power source to at least one of the plurality of electrically isolated stacks.Type: ApplicationFiled: January 30, 2017Publication date: May 18, 2017Inventors: Lyle Thomas Keister, Joshua David Keister, Bradley John Schafer, Albert Andreas Maria Esser
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Publication number: 20170099008Abstract: The present disclosure relates to power management apparatuses and systems utilizing synchronous common coupling. A power management apparatus may comprise a synchronous common coupling, a plurality of ports, and a plurality of electrically isolated stacks connected through the synchronous common coupling. Each electrically isolated stack may comprise at least one stage, each stage comprising a source/load bridge, a flux bridge, and a direct current (DC) bus. The source/load bridge may be connected to a source or load through one of the plurality of ports, the flux bridge may be connected to an electrically isolated winding in the synchronous common coupling, and the flux bridge may be connected to the source/load bridge through the DC bus.Type: ApplicationFiled: October 4, 2016Publication date: April 6, 2017Inventors: Lyle Thomas Keister, Joshua David Keister, Bradley John Schafer, Albert Andreas Maria Esser
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Publication number: 20160258700Abstract: A firearm magazine guard unit including an attachment unit affixed to the firearm magazine guard unit, a magazine ejection unit rotatively affixed to the firearm magazine guard unit, where a portion of the magazine ejection unit is in contact with the magazine when the magazine is inserted into the firearm magazine guard unit.Type: ApplicationFiled: March 4, 2016Publication date: September 8, 2016Inventors: John SCHAFER, Maura Schafer, Louis Papamihail
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Patent number: 8866487Abstract: A directional fault sectionalizing system that utilizes one phase voltage measurement and three phase current measurements to determine the directionality of high impedance faults on a three phase electric power circuit. This eliminates the need for two of the three voltage measuring devices at each monitoring station conventionally required to determine fault directionality, which makes it economical to install at a greater number of distribution tap points. The system is particularly useful for commonly used three-way tap points along distribution lines where three phase voltage measurement is not readily available. The system is capable of identifying faults under challenging circumstances, such faults occurring on unbalanced three phase power lines and faults occurring on tapped line segments where the currents are relatively small compared to the currents flowing in the main line segments.Type: GrantFiled: September 12, 2011Date of Patent: October 21, 2014Assignee: Southern States, LLCInventors: Joseph R. Rostron, John H. Brunke, Bradley John Schafer, Richard Charles Leonhardt, David Lester Moore
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Patent number: 8392130Abstract: A communication and control system for a high voltage power line using an energy harvesting power supply to avoid batteries in the communication components maintained at line voltage. The energy harvesting power supply utilizes scavenged backscatter power received from a transceiver maintained at ground potential or a power supply with a super-saturating magnetic flux core, such as a mu-metal core, to harvest electromagnetic field energy from the power line. The communication equipment maintained at line voltage communicates information to the transceiver maintained at ground potential by modulating backscatter energy reflected from the beam transmitted by the ground level transceiver to minimize the power requirement of the communication equipment maintained at line voltage. Response equipment includes capacitors, voltage regulator, voltage sag supporter, circuit interrupter, remote communication equipment, reporting and analysis system.Type: GrantFiled: April 8, 2010Date of Patent: March 5, 2013Assignee: SSI Power, LLCInventors: Bradley John Schafer, Joseph Richard Rostron, Russell Keith Ortkiese, Raj Anand
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Publication number: 20120062239Abstract: A directional fault sectionalizing system that utilizes one phase voltage measurement and three phase current measurements to determine the directionality of high impedance faults on a three phase electric power circuit. This eliminates the need for two of the three voltage measuring devices at each monitoring station conventionally required to determine fault directionality, which makes it economical to install at a greater number of distribution tap points. The system is particularly useful for commonly used three-way tap points along distribution lines where three phase voltage measurement is not readily available. The system is capable of identifying faults under challenging circumstances, such faults occurring on unbalanced three phase power lines and faults occurring on tapped line segments where the currents are relatively small compared to the currents flowing in the main line segments.Type: ApplicationFiled: September 12, 2011Publication date: March 15, 2012Inventors: Joseph R. Rostron, John H. Brunke, Bradley John Schafer, Richard Charles Leonhardt, David Lester Moore
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Publication number: 20100280775Abstract: A communication and control system for a high voltage power line using an energy harvesting power supply to avoid batteries in the communication components maintained at line voltage. The energy harvesting power supply utilizes scavenged backscatter power received from a transceiver maintained at ground potential or a power supply with a super-saturating magnetic flux core, such as a mu-metal core, to harvest electromagnetic field energy from the power line. The communication equipment maintained at line voltage communicates information to the transceiver maintained at ground potential by modulating backscatter energy reflected from the beam transmitted by the ground level transceiver to minimize the power requirement of the communication equipment maintained at line voltage. Response equipment includes capacitors, voltage regulator, voltage sag supporter, circuit interrupter, remote communication equipment, reporting and analysis system.Type: ApplicationFiled: April 8, 2010Publication date: November 4, 2010Inventors: Bradley John Schafer, Joseph Richard Rostron, Russell Keith Ortkiese, Raj Anand
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Publication number: 20040106875Abstract: A medical testing system includes telemetry features whereby physiological data collected by a collection device at a medical facility is transmitted to a remote processing center for analysis by a trained analyst to provide a test result. In one embodiment, the collection device is a heart rate monitor capable of collecting data with which heart rate variability can be assessed. The heart rate monitor includes a display on which is displayed a waveform showing the breathing performance of the patient during data collection along with standards against which to compare the waveform in order to determine the extent to which the patient followed a predetermined breathing regimen during data collection. The operator of the monitor can use the performance waveform to assess how well the test was taken (i.e., how well the patient complied with the prescribed breathing regimen) and can accept or reject the physiological data accordingly.Type: ApplicationFiled: June 30, 2003Publication date: June 3, 2004Inventors: Wayne Y. Menzie, John Schafer, Keith N. Knapp, Alan M. Cohen
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Patent number: 6650932Abstract: A medical testing system includes telemetry features whereby physiological data collected by a collection device at a medical facility is transmitted to a remote processing center for analysis by a trained analyst to provide a test result. In one embodiment, the collection device is a heart rate monitor capable of collecting data with which heart rate variability can be assessed. The heart rate monitor includes a display on which is displayed a waveform showing the breathing performance of the patient during data collection along with standards against which to compare the waveform in order to determine the extent to which the patient followed a predetermined breathing regimen during data collection. The operator of the monitor can use the performance waveform to assess how well the test was taken (i.e., how well the patient complied with the prescribed breathing regimen) and can accept or reject the physiological data accordingly.Type: GrantFiled: May 15, 2000Date of Patent: November 18, 2003Assignee: Boston Medical Technologies, Inc.Inventors: Wayne Y. Menzie, John Schafer, Keith N. Knapp, II, Alan M. Cohen