Patents by Inventor Ohlan Silpachai
Ohlan Silpachai 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: 20220349232Abstract: An anti-pinch system, apparatus and/or method. The system includes an elastomeric tubing with an internal cavity that is connected to a pressure sensor to measure pressure increases within the cavity in the event of a pressure rise.Type: ApplicationFiled: April 30, 2021Publication date: November 3, 2022Inventors: Ohlan Silpachai, Christian Walter Voegerl
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Patent number: 10634534Abstract: A flow sensing module with a bypass channel is provided. The flow sensing module may include a body portion and a flow sensor. The body portion may include a main fluid inlet, a main fluid outlet, a main fluid channel extending between the main fluid inlet and the main fluid outlet, a bypass fluid inlet and a bypass fluid outlet each configured to be in communication with the main fluid channel, and a bypass fluid channel extending between the bypass fluid inlet and the bypass fluid outlet. The flow sensor may be disposed in the bypass fluid channel to sense a flow rate of a fluid in the bypass channel. No pressure drop element is disposed in the main fluid channel, so the main fluid channel may have a pressure loss of a very small value. Moreover, linearity and sensitivity of the flow sensing module may also be improved.Type: GrantFiled: August 25, 2017Date of Patent: April 28, 2020Assignee: MEMSIC TRANSDUCER SYSTEMS CO., LTD.Inventors: Nan Jou Pern, Ohlan Silpachai
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Patent number: 10139256Abstract: A MEMS flow sensor is provided having a micro flow channel etched in a silicon structure composed of two silicon substrates bonded or fused together. A heater and one or more temperature sensors are, in one embodiment, disposed around the perimeter of the flow channel and outside of the channel. In another embodiment, a heater and one or more temperature sensors are respectively disposed outside the flow channel at the top and bottom of the channel. In further embodiments, a heater and one or more temperature sensors are located inside the flow channel on one or more surfaces thereof or around the inside perimeter of the channel. The flow sensors in accordance with the invention are preferably fabricated using wafer scale fabrication techniques.Type: GrantFiled: August 3, 2015Date of Patent: November 27, 2018Assignee: ACEINNA, INC.Inventors: Yang Zhao, Ohlan Silpachai, Francis Man, Zhengxin Zhao
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Publication number: 20180066970Abstract: A flow sensing module with a bypass channel is provided. The flow sensing module may include a body portion and a flow sensor. The body portion may include a main fluid inlet, a main fluid outlet, a main fluid channel extending between the main fluid inlet and the main fluid outlet, a bypass fluid inlet and a bypass fluid outlet each configured to be in communication with the main fluid channel, and a bypass fluid channel extending between the bypass fluid inlet and the bypass fluid outlet. The flow sensor may be disposed in the bypass fluid channel to sense a flow rate of a fluid in the bypass channel. No pressure drop element is disposed in the main fluid channel, so the main fluid channel may have a pressure loss of a very small value. Moreover, linearity and sensitivity of the flow sensing module may also be improved.Type: ApplicationFiled: August 25, 2017Publication date: March 8, 2018Inventors: Nan Jou Pern, Ohlan Silpachai
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Publication number: 20170115149Abstract: A flow element for detecting flow is described. The flow element includes a flow body defining a main flow path having a main flow resistance and a removable flow module defining at least a part of a bypass flow path having a bypass flow resistance. The bypass flow resistance being much greater than the main flow resistance, such as being a thousand times greater than the main flow resistance. The flow body further defines a bypass flow inlet and a bypass flow outlet. The bypass flow inlet and the bypass flow outlet fluidly connect the bypass flow path to the main flow path.Type: ApplicationFiled: October 26, 2016Publication date: April 27, 2017Inventors: Ohlan Silpachai, Nan Jou Pern
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Publication number: 20170038235Abstract: A MEMS flow sensor is provided having a micro flow channel etched in a silicon structure composed of two silicon substrates bonded or fused together. A heater and one or more temperature sensors are, in one embodiment, disposed around the perimeter of the flow channel and outside of the channel. In another embodiment, a heater and one or more temperature sensors are respectively disposed outside the flow channel at the top and bottom of the channel. In further embodiments, a heater and one or more temperature sensors are located inside the flow channel on one or more surfaces thereof or around the inside perimeter of the channel. The flow sensors in accordance with the invention are preferably fabricated using wafer scale fabrication techniques.Type: ApplicationFiled: August 3, 2015Publication date: February 9, 2017Inventors: Yang Zhao, Ohlan Silpachai, Francis Man, Zhengxin Zhao
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Publication number: 20080163697Abstract: In sports such as tennis, golf, and baseball, generating high racquet, club, or bat speed when striking the ball is important in the game. For a tennis player, a higher racquet speed can result in a bigger serve or a bigger ground stroke. For a golfer, a higher club swing speed can result in longer range drive. And for a batter, a faster swing speed can mean a homerun. Proper swing techniques are crucial in generating high ball speed, but lack of speed feedback for a recreational player makes improvement difficult. Without feedback of the ball speed, it is difficult for a player to know if recent improvements in techniques have resulted in faster ball speed. The present invention provides swing speed feedback for players to help them generating higher ball speeds.Type: ApplicationFiled: January 4, 2007Publication date: July 10, 2008Inventors: Ohlan Silpachai, Michael Karst
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Patent number: 7037272Abstract: The present invention provides a method and apparatus for monitoring infant respiration during sleep. More specifically, the present invention alerts the caregiver when an infant has ceased to breathe during sleep. The usefulness of such device applies to Sudden Infant Death Syndrome (SIDS) and prolonged apnea leading to a life threatening event. One embodiment of a method according to the present invention comprises monitoring the relative level of humidity from an infant respiration and comparing it to the room ambient relative humidity. A determination is made when an infant has stopped breathing once the level of the humidity from the infant breaths approaches the room humidity level. At such time, the present invention provides an alert to the caregiver to allow appropriate actions to be taken in reviving or waking the infant as applicable.Type: GrantFiled: July 26, 2004Date of Patent: May 2, 2006Inventors: Ohlan Silpachai, Michael Karst
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Publication number: 20060020221Abstract: The present invention provides a method and apparatus for monitoring infant respiration during sleep. More specifically, the present invention alerts the caregiver when an infant has ceased to breathe during sleep. The usefulness of such device applies to Sudden Infant Death Syndrome (SIDS) and prolonged apnea leading to a life threatening event. One embodiment of a method according to the present invention comprises monitoring the relative level of humidity from an infant respiration and comparing it to the room ambient relative humidity. A determination is made when an infant has stopped breathing once the level of the humidity from the infant breaths approaches the room humidity level. At such time, the present invention provides an alert to the caregiver to allow appropriate actions to be taken in reviving or waking the infant as applicable.Type: ApplicationFiled: July 26, 2004Publication date: January 26, 2006Inventors: Ohlan Silpachai, Michael Karst
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Patent number: 6840105Abstract: The present invention provides a method and apparatus for balancing vehicle driveshafts. One embodiment of a method according to the present invention comprises analyzing a driveshaft and determining a balancing vector to counter any imbalance in the driveshaft. A determination is then made of the appropriate location on the driveshaft for mounting a weight to counter said imbalance and the weight is mounted to the driveshaft. An apparatus for balancing a driveshaft according to the present invention comprises one or more primary balancing weights capable of being mounted to pinion flange holes in a vehicle driveshaft. One or more secondary balancing weights are also included, each of which is capable of being mounted to, or held by, one of the primary weights. The primary weights and secondary weights are mounted to the pinion flange to provide a weight to counter any imbalance in the driveshaft.Type: GrantFiled: January 14, 2003Date of Patent: January 11, 2005Assignee: Vetronix CorporationInventors: Thomas Ray Calkins, Ohlan Silpachai, Robert J. Dial, Kevin Gehris, Michael G. Shinn
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Publication number: 20030154785Abstract: The present invention provides a method and apparatus for balancing vehicle driveshafts. One embodiment of a method according to the present invention comprises analyzing a driveshaft and determining a balancing vector to counter any imbalance in the driveshaft. A determination is then made of the appropriate location on the driveshaft for mounting a weight to counter said imbalance and the weight is mounted to the driveshaft. An apparatus for balancing a driveshaft according to the present invention comprises one or more primary balancing weights capable of being mounted to pinion flange holes in a vehicle driveshaft. One or more secondary balancing weights are also included, each of which is capable of being mounted to, or held by, one of the primary weights. The primary weights and secondary weights are mounted to the pinion flange to provide a weight to counter any imbalance in the driveshaft.Type: ApplicationFiled: January 14, 2003Publication date: August 21, 2003Applicant: VETRONIX CORPORATION, INC.Inventors: Thomas Ray Calkins, Ohlan Silpachai, Robert J. Dial, Kevin Gehris, Michael G. Shinn