Patents by Inventor Li-Yu Chen

Li-Yu Chen 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).

  • Publication number: 20170029055
    Abstract: A locking structure for a bicycle contains: a fixing mount, a locking member, and a flexible strap. The fixing mount includes at least one orifice, a recessed portion, and a first connecting portion. The locking member includes a housing in which a lock block and a retaining unit are accommodated, the housing has a second connecting portion for mating with the first connecting portion, and the lock block has a cylinder core and an aperture. The flexible strap includes a coupling bolt arranged on a first end thereof and a loop disposed on a second end thereof. When the coupling bolt inserts into and locks in the aperture, it pushes the retaining unit into the recessed portion to fix the locking member and the fixing mount together, and the coupling bolt inserts through the loop so that the flexible strip forms a positioning ring.
    Type: Application
    Filed: February 22, 2016
    Publication date: February 2, 2017
    Inventor: Li-Yu Chen
  • Publication number: 20150102976
    Abstract: A communication device includes a ground element and an antenna element. The antenna element is adjacent to an edge of the ground element, and includes a first metal element and a second metal element. A first end of the first metal element is coupled through a first shorting element to the ground element. A second end of the first metal element is open and adjacent to the first end. The second metal element is between the first metal element and the edge of the ground element. A shorting point on the second metal element is coupled through a second shorting element to the ground element. A feeding point on the second metal element is coupled through a capacitive element to a signal source. A third end of the second metal element is adjacent to the first shorting element. A fourth end of the second metal element is open.
    Type: Application
    Filed: December 9, 2013
    Publication date: April 16, 2015
    Applicant: Acer Incorporated
    Inventors: Kin-Lu Wong, Li-Yu Chen
  • Publication number: 20130257660
    Abstract: A communication device with an upper cover and a lower cover including a conductive housing and an antenna element is provided. The conductive housing includes a first conductive surface and a second conductive surface. The first conductive surface is disposed on a surface of the upper cover. The second conductive surface is disposed on a surface of the lower cover. The first conductive surface and the second conductive surface are electrically coupled to each other, and a first edge of the first conductive surface is adjacent to a second edge of the second conductive surface. The antenna element is substantially disposed between the first edge and the second edge, and is excited to form a first band and a second band. The antenna element includes a ground element, a first radiating element, and a second radiating element.
    Type: Application
    Filed: June 27, 2012
    Publication date: October 3, 2013
    Applicant: ACER INCORPORATED
    Inventors: Kin-Lu WONG, Li-Yu CHEN
  • Publication number: 20110143872
    Abstract: An electronic control V-belt continuously variable transmission mechanism is applied in a power transmission system having an engine and support shafts for a driving pulley and a driven pulley, characterized by driving the driving pulley with power supplied by a pulley driving system such that a movable portion of the driving pulley moves axially to the driving-pulley support shaft, thereby enabling a movable portion of a driven pulley connected to the driving pulley to move in response to the axial distance variation, thus changing the rotational speed of the driven pulley. The contact between a cam guide groove of a bearing base of the pulley driving system and a cam guide device is transmitted through rolling friction, and the transmission efficiency is increased by a complex lead angle effect formed between a lead angle of the cam guide groove and a lead screw.
    Type: Application
    Filed: February 12, 2010
    Publication date: June 16, 2011
    Applicants: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE, Kwang Yang Motor Co., Ltd.
    Inventors: Li-Yu CHEN, Yeu-Jou Lin
  • Patent number: 7779977
    Abstract: A vehicle shifting mechanism configured for actuation of a clutch and gear-shifting of a shift drum in a transmission is disclosed, which includes a camshaft linked to the shift drum; an actuating motor for driving the camshaft to allow the camshaft to make one revolution to shift the shift drum with one gear; and a cam connected to the camshaft to coaxially rotate with the camshaft and abutting against a release bearing actuating element to actuate engagement and disengagement of the clutch. The cam has a symmetrical contour such that the camshaft driven by the actuating motor is capable of making one unidirectional revolution to enable actuation of the clutch and the gear-shifting of the shift drum to occur concurrently.
    Type: Grant
    Filed: July 26, 2007
    Date of Patent: August 24, 2010
    Assignees: Industrial Technology Research Institute, Kwang Yang Motor Co., Ltd.
    Inventors: Li-Yu Chen, Yeu-Jou Lin, Tien-Ho Gau
  • Patent number: 7621387
    Abstract: A parking brake and shift mechanism for vehicles comprises a transmission shaft, a parking shift gear wheel, a stopper, and a dog clutch. The parking shift gear wheel is provided with at least one tooth to move in conjunction with the axis of the transmission shaft. The stopper is provided with at least one groove which contains the tooth. The dog clutch is fixed on the transmission shaft and provided with at least one concavity for accommodating the tooth.
    Type: Grant
    Filed: December 4, 2006
    Date of Patent: November 24, 2009
    Assignee: Industrial Technology Research Institute
    Inventors: Yeu-Jou Lin, Li-Yu Chen
  • Publication number: 20080156133
    Abstract: A vehicle shifting mechanism configured for actuation of a clutch and gear-shifting of a shift drum in a transmission is disclosed, which includes a camshaft linked to the shift drum; an actuating motor for driving the camshaft to allow the camshaft to make one revolution to shift the shift drum with one gear; and a cam connected to the camshaft to coaxially rotate with the camshaft and abutting against a release bearing actuating element to actuate engagement and disengagement of the clutch. The cam has a symmetrical contour such that the camshaft driven by the actuating motor is capable of making one unidirectional revolution to enable actuation of the clutch and the gear-shifting of the shift drum to occur concurrently.
    Type: Application
    Filed: July 26, 2007
    Publication date: July 3, 2008
    Inventors: Li-Yu Chen, Yeu-Jou Lin, Tien-Ho Gau
  • Publication number: 20080011576
    Abstract: A parking brake and shift mechanism for vehicles comprises a transmission shaft, a parking shift gear wheel, a stopper, and a dog clutch. The parking shift gear wheel is provided with at least one tooth to move in conjunction with the axis of the transmission shaft. The stopper is provided with at least one groove which contains the tooth. The dog clutch is fixed on the transmission shaft and provided with at least one concavity for accommodating the tooth.
    Type: Application
    Filed: December 4, 2006
    Publication date: January 17, 2008
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Yeu-Jou Lin, Li-Yu Chen
  • Patent number: 6990872
    Abstract: An automatic gear transmission apparatus, capable of cooperating with a conventional manual transmission gearbox to provide an automatic gear transmission function. The automatic gear transmission apparatus comprises: a motor, a clutch mechanism, a gear selection mechanism, a gear transmission mechanism, and a sleeve rod. By operation of the clutch mechanism, output power from a single motor can be optionally transmitted out through the gear selection mechanism or the gear transmission mechanism. The power output by the gear selection mechanism can linearly activate the sleeve rod to proceed a gear selection action, while the power output by the gear transmission mechanism can rotationally activate the sleeve rod to proceed a gear transmission action. Therefore, using only a single motor can drive the sleeve rod linearly or rotationally to proceed two actions of gear selection and gear transmission, respectively.
    Type: Grant
    Filed: March 22, 2004
    Date of Patent: January 31, 2006
    Assignee: Industrial Technology Research Institute
    Inventor: Li-Yu Chen
  • Publication number: 20050139024
    Abstract: An automatic gear transmission apparatus, capable of cooperating with a conventional manual transmission gearbox to provide an automatic gear transmission function. The automatic gear transmission apparatus comprises: a motor, a clutch mechanism, a gear selection mechanism, a gear transmission mechanism, and a sleeve rod. By means of the clutch mechanism, output power from a single motor can be optionally transmitted out through the gear selection mechanism or the gear transmission mechanism. The power output by the gear selection mechanism can linearly activate the sleeve rod to proceed a gear selection action, while the power output by the gear transmission mechanism can rotationally activate the sleeve rod to proceed a gear transmission action. Therefore, using only a single motor can drive the sleeve rod linearly or rotationally to proceed two actions of gear selection and gear transmission, respectively.
    Type: Application
    Filed: March 22, 2004
    Publication date: June 30, 2005
    Inventor: Li-Yu Chen
  • Patent number: 6170456
    Abstract: A lubricating device for four-stroke engine consists of a cylinder block, a crankcase, an oil sump, a piston, a crankshaft, a connecting rod and an oil dipper, the crankcase contains an upper crankcase body and a lower crankcase body, the bottom of the crankcase extends downward to form an oil trough with a hole in it, an oil dipper is able to operate in the oil trough, an oil box is formed for oil containing by the lover crankcase body and the oil sup, when an engine is running on a normal inclination, a shall amount of oil can only get into the oil trough through three hole in it, movement of the oil dipper atomizes the oil to provide lubrication, if the engine is running on an abnormal inclination or bumping condition, oil will not flow into the crankcase, and this design is able to ensure nor-al operation of an engine on any inclinations.
    Type: Grant
    Filed: March 2, 1999
    Date of Patent: January 9, 2001
    Assignee: Industrial Technology Research Institute
    Inventors: Huan-Lung Gu, Shao-Yu Li, Li-Yu Chen, Chih-Chung Lo, Wen-Che Liu
  • Patent number: 5588930
    Abstract: A two-speed gearbox, having an input shaft which is connected to a spline shaft, when the gearbox is in direct drive, a front part of the spline shaft is in engagement with a shaft coupler which drives an output shaft to transmit a 1:1 ratio; when the gearbox is geared down, the spline shaft is moved such that its front part is separated from the shaft coupler and engaged with a sun gear of the planetary gear train within a housing which makes the internal splines of a frame of the planetary gear engage with external splines of the shaft coupler. Power is transmitted from the spline shaft, through the speed reduction of the sun and planetary gear train and to the planetary gear frame, and then is transmitted to the shaft coupler and sent out through the output shaft.
    Type: Grant
    Filed: March 21, 1995
    Date of Patent: December 31, 1996
    Assignee: Industrial Technology Research Institute
    Inventor: Li-Yu Chen