Patents Assigned to National Formosa University
  • Patent number: 10953506
    Abstract: A self-balancing line shaft of a machine tool includes a spindle device, a cutter tool holder and at least one balancing assembly. The spindle device includes a spindle extending along and rotatable about an axis, and at least one precision lock nut threadedly engaged with and rotated with the spindle. The cutter tool holder is coaxially connected and rotated with the spindle. The balancing assembly includes an annular groove formed in one of the precision lock nut and the cutter tool holder and extending along a circle path surrounding the axis, and a plurality of weight members disposed in the annular groove to be moved in a direction opposite to a rotation unbalance during rotation of the spindle such that the center of mass of the whole rotating system is close to the axis.
    Type: Grant
    Filed: May 24, 2019
    Date of Patent: March 23, 2021
    Assignee: NATIONAL FORMOSA UNIVERSITY
    Inventors: Tzu-Chi Chan, Shang-Hong Wu
  • Patent number: 10920168
    Abstract: A coffee lubricant having nanoparticles is provided. It consists of 36 to 40 wt % of glycerin, 1 to 7 wt % of gum arabic, 0.3 to 1.3 wt % of nanoparticles, and remaining part of coffee biofuel. In which, the nanoparticles are CuO. The coffee biofuel is extracted from coffee dregs and has a viscosity of 60 to 70 cSt at a temperature of 40 degrees Celsius. It can reduce the friction coefficient and operating temperature. In addition, it can replace the mineral oil.
    Type: Grant
    Filed: May 29, 2019
    Date of Patent: February 16, 2021
    Assignee: NATIONAL FORMOSA UNIVERSITY
    Inventors: Jeng-Haur Horng, Chin-Chung Wei, Shin-Yuh Chern, Kuang-Hsuan Peng, Yang-Yuan Chen, Chia-Chun Yu
  • Patent number: 10912936
    Abstract: A tube-docking holding device includes a first connector bracket and a second connector bracket. The first connector bracket includes two shells. When the two shells are closed, a first accommodation space is surrounded for fixing a portion of a first connector assembly of a catheter. The second connector bracket includes a base body and a cover body. The base body includes a first inner shell and a first outer shell. The cover body includes a second inner shell and a second outer shell. When the cover body and the base body are closed, the first inner shell and the second inner shell surround and define a second accommodation space for fixing a portion of a second connector assembly of a dialysate tube. An interconnected guiding space is formed between the first inner shell and the first outer shell and between the second inner shell and the second outer shell.
    Type: Grant
    Filed: October 1, 2018
    Date of Patent: February 9, 2021
    Assignees: National Formosa University, National Taiwan University Hospital Yun-Lin Branch
    Inventors: Sung-An Lin, I-En Lin, Feng-Jung Yang, Hao-Ting Chiang
  • Patent number: 10837882
    Abstract: A binary cleanup device for sample pretreatment of compound analysis and a simplified sample pretreatment method using the binary cleanup device are disclosed. The simplified sample pretreatment method includes a homogenization step to crush the sample, an extraction/partition step to mix the crushed sample with a solvent and a salt reagent into a sample liquid, a filtration step to remove solid matters from the sample liquid, and a cleanup step to clean up the filtered sample liquid using a binary cleanup device, which is consisting of a liquid transfer device and a filter tube filled up with a cleanup agent. Draw a defined portion of the filtered sample extracts via the liquid transfer device, and then let the aspirated sample liquid pass through the cleanup agent of the filter tube. Thus, a single liquid transfer step that achieving accurate sampling and rapid cleanup, simultaneously.
    Type: Grant
    Filed: November 15, 2018
    Date of Patent: November 17, 2020
    Assignee: NATIONAL FORMOSA UNIVERSITY
    Inventors: Jenn-Feng Sheen, Shuen-Rung Hsiao, Jhong-Yun Sie
  • Publication number: 20200227720
    Abstract: The present disclosure discloses a method for forming a lead-carbon compound interface layer on a lead-based substrate, wherein the lead-based substrate has a surface, and the method includes steps of: causing an acidic solution to contact with a carbon material and a lead-containing material to form a carbon-containing plumbate precursor having an ionic lead; and reducing the ionic lead in the carbon-containing plumbate precursor to form the lead-carbon compound interface layer on the surface.
    Type: Application
    Filed: January 13, 2020
    Publication date: July 16, 2020
    Applicant: National Formosa University
    Inventors: Shu-Huei Hsieh, Kai-Yi Song, Yi-Ren Tzeng, Ya-Wun Jan, Jing-Xiu Lin, Bo-Shun Wang, Jyun-Neng Chen
  • Patent number: 10625446
    Abstract: A high-temperature hot-pressing molding machine includes a mold unit, a heating, unit disposed to heat the mold unit, a heat insulating unit including a surrounding insulating member to enclose the mold unit and two insulating layers disposed on two opposite sides of the mold unit to obstruct heat radiation and conduction from the mold unit, a heat dissipating unit disposed on the insulating layers, a cooling unit disposed on the heat dissipating unit, and a vacuum unit disposed to form a vacuum space. Under a vacuum environment, with the heat insulating unit defining a heat zone containing the mold unit, other component parts adjacent to the heat zone can be prevented from damage in a high temperature operation.
    Type: Grant
    Filed: February 6, 2017
    Date of Patent: April 21, 2020
    Assignee: National Formosa University
    Inventors: Shu-Huei Hsieh, Yi-Ren Tzeng, Sheng-Hsiang Chiang, Wen-Chen Liao
  • Patent number: 10571259
    Abstract: An optical detecting apparatus for detecting a degree of freedom error of a spindle and has a standard bar and a sensor module, and is assembled between a spindle and a rotating platform of a powered machinery. The standard bar has a rod lens and a reflection face. The sensor module has two detecting groups, an oblique laser head, and a reflected spot displacement sensor. Each detecting group emits a laser light through the rod lens along the X-axis and the Y-axis of the powered machinery. The oblique laser head emits an oblique laser light to the reflected spot displacement sensor. When the spindle of the powered machinery generates errors after rotating, the sensor module receives the changes of the laser lights to obtain the displacement change signals of the standard bar for a calculation unit to detect the errors between the spindle and the rotating platform.
    Type: Grant
    Filed: June 19, 2017
    Date of Patent: February 25, 2020
    Assignee: National Formosa University
    Inventors: Wen-Yuh Jywe, Tung-Hsien Hsieh, Zhong-Liang Hsu, Chia-Ming Hsu, Yu-Wei Chang, Sen-Yi Huang, Tung-Hsing Hsieh
  • Patent number: 10314250
    Abstract: The present invention discloses a bag packing mechanism for mushroom cultivation, which comprises two clamping seats, transport means, air duct, pumping means and push rod. Transport means supply collar. Air duct descends through the collar and extends into a bag from the opening of the bag, the two clamping seats clamp the top portion of the bag to close to the outer periphery of the air duct, the pumping means sucks the top portion, the two clamping seats open, the push rod is lowered to push down the collar to put on the top portion, the pumping means blow to open the top portion, the push rod is further lowered to fold the top portion down, the air duct and putter rise, and then complete the automation of packaging job.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: June 11, 2019
    Assignee: National Formosa University
    Inventors: Rong-Yuan Jou, Chih-Jen Lee
  • Publication number: 20180126608
    Abstract: A high-temperature hot-pressing molding machine includes a mold unit, a heating, unit disposed to heat the mold unit, a heat insulating unit including a surrounding insulating member to enclose the mold unit and two insulating layers disposed on two opposite sides of the mold unit to obstruct heat radiation and conduction from the mold unit, a heat dissipating unit disposed on the insulating layers, a cooling unit disposed on the heat dissipating unit, and a vacuum unit disposed to form a vacuum space. Under a vacuum environment, with the heat insulating unit defining a heat zone containing the mold unit, other component parts adjacent to the heat zone can be prevented from damage in a high temperature operation.
    Type: Application
    Filed: February 6, 2017
    Publication date: May 10, 2018
    Applicant: National Formosa University
    Inventors: Shu-Huei HSIEH, Yi-Ren Tzeng, Sheng-Hsiang Chiang, Wen-Chen Liao
  • Patent number: 9414469
    Abstract: An integrated lamp with automatic emergency light and regular light is provided in the present invention. The integrated lamp with automatic emergency light and regular light is coupled to an AC power source, wherein the AC power source includes a first AC terminal and a second AC terminal. The integrated lamp is controlled by a lamp switch, where the lamp switch includes a first terminal and a second terminal, where an indication light circuit is coupled between the first terminal and the second terminal of the lamp switch. The integrated lamp includes an AC detector. The AC detector is coupled between the second terminal of the lamp switch and the second AC terminal. When the lamp switch is turned off, the AC detector determines whether the current state is a power failure state or a normal state according to the electrical current and/or voltage from the indication light circuit to the second AC terminal.
    Type: Grant
    Filed: December 16, 2013
    Date of Patent: August 9, 2016
    Assignee: NATIONAL FORMOSA UNIVERSITY
    Inventors: Yu-Kai Chen, Chin-Hsiung Chang
  • Patent number: 9276633
    Abstract: A power line communication control system adapted for single-wire and method thereof are provided in the present invention. The power line communication control method adapted for single-wire includes: receiving a AC voltage from a AC power wire, wherein each period of the AC voltage includes a positive half cycle and a negative half cycle to form a sinusoidal AC signal; and adjusting the positive half cycle and the negative half cycle of the sinusoidal AC signal according to a digital data to be transmit to a load circuit. The step of adjusting the positive half cycle and the negative half cycle of the sinusoidal AC signal includes removing a first component of the positive half cycle of the sinusoidal AC signal and a second component of the negative half cycle of the sinusoidal AC signal to obtain a phase cutting signal. When the digital data is a first logic, the positive half cycle of the phase cutting signal is equal to the negative half cycle of the phase cutting signal.
    Type: Grant
    Filed: November 7, 2014
    Date of Patent: March 1, 2016
    Assignee: NATIONAL FORMOSA UNIVERSITY
    Inventors: Yu-Kai Chen, Chin-Hsiung Chang
  • Patent number: 9244458
    Abstract: A method of numerical-control scraping of a work piece has a preparing step, a scanning step, a flatness-parameter inputting step, a surface-finishing step, a related-parameter inputting step, an auto-scraping step and an analyzing step. The preparing step comprises preparing a multi-axis machine tool, a laser displacement meter, an auto scraping apparatus and a computer. The scanning step comprises scanning the work piece. The flatness-parameter inputting step comprises inputting a flatness-parameter. The surface-finishing step comprises calculating out the to-be-scraped ranges of the work piece and scraping the work piece. The related-parameter inputting step comprises inputting desired PPI and POP in the computer, calculating out the HOP, the DOS and the oil content to obtain the length, the width and the depth of a single scraping process. The auto-scraping step comprises scraping the work piece to meet the requirement. The analyzing step comprises detecting the 3D-appearance drawing of the work piece.
    Type: Grant
    Filed: January 20, 2012
    Date of Patent: January 26, 2016
    Assignee: NATIONAL FORMOSA UNIVERSITY
    Inventors: Wen-Yuh Jywe, Tung-Hsien Hsieh, Chia-Hung Chen, Chin-Hui Huang, Ying-Chien Tsai, Yen-Chieh Wang
  • Patent number: 8997593
    Abstract: A nut for a ball screw mainly includes a nut, multiple dual-narrowed paths, multiple micro fans, a control portion, and multiple temperature sensing portions. The nut has a threaded path and the dual-narrowed paths are defined through the central axis of the nut and substantially parallel to the threaded path. Each of the dual-narrowed paths has a high-speed area and the diameter of each of the dual-narrowed paths is gradually reduced from two ends toward the high-speed area. The nut has micro fans which drive the air flows and reduce the temperature to increase the life of use and the precision of positioning.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: April 7, 2015
    Assignee: National Formosa University
    Inventors: Jeng-Haur Horng, Shin-Yuh Chen, Jen-Fin Lin, Chin-Chung Wei, Hsiao-Yeh Chu, Yuh-Ping Chang, Wang-Long Li
  • Patent number: 8956424
    Abstract: Provided is a method and an apparatus for purifying potassium nitrate from the solid waste produced by a chemical glass-strengthening process. In the method, the solid waste is melted into a liquid waste at first. Potassium nitrate of various purity grades can be obtained by batch processing the liquid waste through stepwise cooling processes of cooling the liquid waste to a first temperature facilitating the potassium nitrate contained in the liquid waste to be crystallized at a first rate and then cooling the liquid waste to a second temperature close to the freezing point of the potassium nitrate at a second rate that is slower than the first rate. The recovered potassium nitrate from the solid waste can be recycled and reused.
    Type: Grant
    Filed: January 17, 2013
    Date of Patent: February 17, 2015
    Assignee: National Formosa University
    Inventor: Min-Hui Yang
  • Publication number: 20140354048
    Abstract: An integrated lamp with automatic emergency light and regular light is provided in the present invention. The integrated lamp with automatic emergency light and regular light is coupled to an AC power source, wherein the AC power source includes a first AC terminal and a second AC terminal. The integrated lamp is controlled by a lamp switch, where the lamp switch includes a first terminal and a second terminal, where an indication light circuit is coupled between the first terminal and the second terminal of the lamp switch. The integrated lamp includes an AC detector. The AC detector is coupled between the second terminal of the lamp switch and the second AC terminal. When the lamp switch is turned off, the AC detector determines whether the current state is a power failure state or a normal state according to the electrical current and/or voltage from the indication light circuit to the second AC terminal.
    Type: Application
    Filed: December 16, 2013
    Publication date: December 4, 2014
    Applicant: National Formosa University
    Inventors: Yu-Kai CHEN, Chin-Hsiung CHANG
  • Patent number: 8889605
    Abstract: A straw biolubricant includes 70-80% mineral oil, 6-11% straw biomass oil, and 15-20% active agent. The active agent is sorbitol oleate. The straw biolubricant includes a higher contact resistance and lower coefficient of friction in comparison with a conventional lubricant, therefore to reduce the temperature of operating machine parts.
    Type: Grant
    Filed: May 4, 2012
    Date of Patent: November 18, 2014
    Assignee: National Formosa University
    Inventors: Jeng-Haur Horng, Shou-Yin Yang, Chun-Chia Tien, Wei-Jhuh Wu, Hsiang-Jung Cheng
  • Patent number: 8676023
    Abstract: The present invention discloses a method for fabricating polymeric wavelength filter based on an asymmetric Bragg coupler with single-grating waveguide. The asymmetric waveguide coupler is formed firstly on a negative photo-resist mold. PDMS film is injected into the narrow waveguide of the coupler to act as a protection layer. The gratings pattern is exposed on the alternative waveguide and subsequently transferred to PDMS stamp mold. The PDMS stamp mold is used as a stamp to transfer the gratings pattern of the ABC wavelength filter onto UV cured polymer to form the final ABC filter. Whereby, the fabrication process is reliable and accurate, and can offer great potential for mass production of the ABC filter with single-grating waveguide.
    Type: Grant
    Filed: November 18, 2011
    Date of Patent: March 18, 2014
    Assignee: National Formosa University
    Inventor: Wei-Ching Chuang
  • Publication number: 20130323156
    Abstract: Provided is a method and an apparatus for purifying potassium nitrate from the solid waste produced by a chemical glass-strengthening process. In the method, the solid waste is melted into a liquid waste at first. Potassium nitrate of various purity grades can be obtained by batch processing the liquid waste through stepwise cooling processes of cooling the liquid waste to a first temperature facilitating the potassium nitrate contained in the liquid waste to be crystallized at a first rate and then cooling the liquid waste to a second temperature close to the freezing point of the potassium nitrate at a second rate that is slower than the first rate. The recovered potassium nitrate from the solid waste can be recycled and reused.
    Type: Application
    Filed: January 17, 2013
    Publication date: December 5, 2013
    Applicant: NATIONAL FORMOSA UNIVERSITY
    Inventor: Min-Hui YANG
  • Patent number: 8598994
    Abstract: A method for controlling appliances includes a wearing step, a swinging step and a controlling step. The control device is attached to a movable part of a user's body and the user swings the movable part to generate and send a control signal to the appliance so as to activate and control the appliance. The method is also helpful for rehabilitation to disable people.
    Type: Grant
    Filed: December 16, 2010
    Date of Patent: December 3, 2013
    Assignee: National Formosa University
    Inventors: Hwa-Chuan Lin, Jeng-Haur Horng, Chia-Kai Chang, Yu-Heng Hsieh, Ya-Hsin Hong
  • Patent number: 8581461
    Abstract: An energy transforming apparatus has a controllable magnetic power gathering device and a transforming device to transform the non-continuous kinetic energy into electrical power to store in the power storage assembly. The controllable magnetic power gathering device has a non-continuous moved or linear reciprocating moved input end, a continuous rotating output end and a controllable energy-adjusting end, etc, to transform the impulse momentum into the continuous kinetic energy with the differential motion and using the non-contacting magnetic wheel transmission assembly to protect the overload effect. The transforming device has an energy transforming assembly, a circuit adjustment assembly and a power storage assembly. The circuit adjustment assembly is electrically connected with the energy transforming assembly to control the energy transforming assembly to transform the kinetic energy into electrical power.
    Type: Grant
    Filed: March 23, 2011
    Date of Patent: November 12, 2013
    Assignee: National Formosa University
    Inventors: Bor-Jeng Lin, Mi-Ching Tsai, Cheng-Chi Huang