Patents by Inventor Huan-Jan Chien

Huan-Jan Chien 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).

  • Patent number: 11067192
    Abstract: A diaphragm valve structure having application in diaphragm valves made completely from fluororesin at an operating temperature of 200° C. The diaphragm valve uses a thermal isolation method that consists of a heat transfer limiting structure and a heat dissipating structure, ensuring rigidity of the gas cylinder structure. The heat transfer limiting structure uses lattice-shaped ribbed plates with horizontal openings, wherein the lattice-shaped ribbed plates and a minimum diameter area of an annular portion are all provided with heat transfer section thickness. The heat dissipating structure consists of a multilayered structure for a preferred external natural cooling, and further using a coolant gas ensuring that the peripheral portion of the diaphragm and gas-tight sealing components on the valve shaft are sufficiently cooled.
    Type: Grant
    Filed: September 5, 2019
    Date of Patent: July 20, 2021
    Assignee: BUENO TECHNOLOGY Co., Ltd
    Inventors: Huan-Jan Chien, Po-Wen Chen, Huan-Ciao Hong
  • Patent number: 11035474
    Abstract: A fluoroplastic butterfly valve structure is disclosed that includes an inner metallic butterfly disc and an outer fluoroplastic material enclosing the metallic butterfly disc within a valve body. The butterfly disc has a board-like or cone-like cross section. A fluoroplastic lining has an interference fit with the butterfly disc. A back-up ring is provided between an inner surface of the valve body made of high temperature resistant rubber. The butterfly disc has a complex sealing structure, which includes an unequal-width conical surface and an unequal-width curved surface. The unequal-width curved surface is disposed in a closing direction of the butterfly disc for preventing interference sliding thereof.
    Type: Grant
    Filed: June 5, 2019
    Date of Patent: June 15, 2021
    Assignee: Bueno Technology Co., Ltd.
    Inventors: Huan-Jan Chien, Po-Wen Chen
  • Publication number: 20200072384
    Abstract: A diaphragm valve structure having application in diaphragm valves made completely from fluororesin at an operating temperature of 200° C. The diaphragm valve uses a heat separation method that consists of a heat transfer limiting structure and a heat dissipating structure, ensuring rigidity of the gas cylinder structure. The heat transfer limiting structure uses lattice-shaped ribbed plates with horizontal openings, wherein the lattice-shaped ribbed plates and a minimum diameter area of an annular portion are all provided with heat transfer section thickness. The heat dissipating structure consists of a multilayered structure for a preferred external natural cooling, and further using a coolant gas ensuring that the peripheral portion of the diaphragm and gas-tight sealing components on the valve shaft are sufficiently cooled.
    Type: Application
    Filed: September 5, 2019
    Publication date: March 5, 2020
    Applicant: BUENO TECHNOLOGY Co., Ltd.
    Inventors: Huan-Jan Chien, Po-Wen Chen, Huan-Ciao Hong
  • Publication number: 20200072359
    Abstract: The present invention relates to a fluoroplastic butterfly valve structure, including a valve body, a butterfly disc, a lining, and a back-up ring. The butterfly disc has a disc-like structure and includes an inner metallic butterfly disc and an outer fluoroplastic material enclosing the metallic butterfly disc. The butterfly disc is provided with a valve shaft and includes two bulging portions for connecting with the valve shaft. The butterfly disc has a board-like or cone-like cross section. The valve shaft is mounted in a shaft hole portion of the valve body, enabling rotation of the butterfly disc for adjusting flow amount or opening/closing the valve. The back-up ring and the fluoroplastic lining are mounted on an inner peripheral surface of the valve body. An outer rim of the butterfly disc and an inner surface of the lining are tightly pressed against each other by interference fit.
    Type: Application
    Filed: June 5, 2019
    Publication date: March 5, 2020
    Inventors: HUAN-JAN CHIEN, PO-WEN CHEN
  • Patent number: 10267327
    Abstract: A sealless magnetic drive pump features in improving the stiffness of a stationary shaft. More particularly, the metal magnetic drive pump has an anti-corrosion casing liner. The magnetic drive pump is used in manufacture processes related to corrosive fluid. The pump is especially used in a highly corrosive and high-temperature (up to 200° C.) condition to improve the stiffness of a front support. The stationary shaft includes a metal front support integrated with the pump casing at a pump inlet and encapsulated with a resin enclosure made of a fluoropolymer; a rear shaft seat positioned on a sealed bottom side of a containment shell for offering auxiliary support for the stationary shaft; an impeller including a channel for reducing an inlet flow velocity to offer a low NPSHr.
    Type: Grant
    Filed: April 30, 2017
    Date of Patent: April 23, 2019
    Assignee: ASSOMA INC.
    Inventors: Huan-Jan Chien, Chin-Cheng Wang, Chih-Hsien Shih, Chih-Kuan Shih
  • Patent number: 10190593
    Abstract: A sealless magnetic drive pump features in improving the stiffness of a stationary shaft. More particularly, the metal magnetic drive pump has an anti-corrosion casing liner. The magnetic drive pump is used in manufacture processes related to corrosive fluid. The pump is especially used in a highly corrosive and high-temperature (up to 200° C.) condition to improve the stiffness of a front support. The stationary shaft includes a metal front support integrated with the pump casing at a pump inlet and encapsulated with a resin enclosure made of a fluoropolymer; a rear shaft seat positioned on a sealed bottom side of a containment shell for offering auxiliary support for the stationary shaft; an impeller including a channel for reducing an inlet flow velocity to offer a low NPSHr.
    Type: Grant
    Filed: April 30, 2017
    Date of Patent: January 29, 2019
    Assignee: ASSOMA INC.
    Inventors: Huan-Jan Chien, Chin-Cheng Wang, Chih-Hsien Shih, Chih-Kuan Shih
  • Patent number: 9951778
    Abstract: A structural improvement of the canned pump is to improve the stiffness of a stationary shaft and, according to requirement, to dispose a monitor device. The method for improving the stiffness of the stationary shaft includes axially inserting a shaft metal rear support of the metal structural of a motor rear casing of a canned motor into the inner side of a rotor yoke of an inner rotor of the canned motor, tightly attaching the shaft metal rear support to a rear shaft seat for improving the stiffness of the stationary shaft by longer hold length, and for shortening an arm length of the composite force. The monitor device, used for detecting the wear of a bearing for enhancing the reliability and satisfying the driving requirement, is installed in the ring slot to be protected by the rear shaft seat.
    Type: Grant
    Filed: August 12, 2016
    Date of Patent: April 24, 2018
    Assignee: ASSOMA INC.
    Inventors: Huan-Jan Chien, Chin-Cheng Wang, Chih-Hsien Shih
  • Patent number: 9897102
    Abstract: A structure improvement of a pump casing with a Polyfluoroalkoxy (PFA) liner which improves manufacturing efficiency, reduces manufacturing cost and improves yield strength, more particular to keep the stiffness of the shaft support and improve yield of the pump casing. The metal pump casing with the PFA liner used for handling corrosive liquids includes a suction casing with PFA liner, and a volute casing with PFA liner for accommodating an impeller. The volute casing also collects and then ejects the liquid through a discharge. The suction casing with the PFA liner and the volute casing with the PFA liner are separately formed as two workpieces by injection molding process and then assembled to form the pump casing so as to reduce the residual stress applied in the PFA liner.
    Type: Grant
    Filed: November 23, 2015
    Date of Patent: February 20, 2018
    Assignee: ASSOMA INC.
    Inventors: Chin-Cheng Wang, Chih-Hsien Shih, Chih-Kuan Shih, Yu-Lun Jhang, Huan-Jan Chien, Shu-Yen Chien
  • Patent number: 9746118
    Abstract: A pipe joint structure has a joint body, a fixed ring and a union nut. A flared end of a tube has a conical surface and a tubular surface. The conical surface and tubular surface are connected to a tube connecting portion of the joint body. The union nut is fastened to a locking thread of the tube connecting portion. An interior recess portion of the union nut is coupled with a bulging surface of the fixed ring. The tube is compressed evenly and secured firmly on the joint body.
    Type: Grant
    Filed: April 25, 2014
    Date of Patent: August 29, 2017
    Assignee: BUENO TECHNOLOGY CO., LTD.
    Inventors: Huan-Jan Chien, Po-Wen Chen
  • Publication number: 20170234326
    Abstract: A sealless magnetic drive pump features in improving the stiffness of a stationary shaft. More particularly, the metal magnetic drive pump has an anti-corrosion casing liner. The magnetic drive pump is used in manufacture processes related to corrosive fluid. The pump is especially used in a highly corrosive and high-temperature (up to 200° C.) condition to improve the stiffness of a front support. The stationary shaft includes a metal front support integrated with the pump casing at a pump inlet and encapsulated with a resin enclosure made of a fluoropolymer; a rear shaft seat positioned on a sealed bottom side of a containment shell for offering auxiliary support for the stationary shaft; an impeller including a channel for reducing an inlet flow velocity to offer a low NPSHr.
    Type: Application
    Filed: April 30, 2017
    Publication date: August 17, 2017
    Applicant: ASSOMA INC.
    Inventors: Huan-Jan CHIEN, Chin-Cheng WANG, Chih-Hsien SHIH, Chih-Kuan SHIH
  • Publication number: 20170234327
    Abstract: A sealless magnetic drive pump features in improving the stiffness of a stationary shaft. More particularly, the metal magnetic drive pump has an anti-corrosion casing liner. The magnetic drive pump is used in manufacture processes related to corrosive fluid. The pump is especially used in a highly corrosive and high-temperature (up to 200° C.) condition to improve the stiffness of a front support. The stationary shaft includes a metal front support integrated with the pump casing at a pump inlet and encapsulated with a resin enclosure made of a fluoropolymer; a rear shaft seat positioned on a sealed bottom side of a containment shell for offering auxiliary support for the stationary shaft; an impeller including a channel for reducing an inlet flow velocity to offer a low NPSHr.
    Type: Application
    Filed: April 30, 2017
    Publication date: August 17, 2017
    Applicant: ASSOMA INC.
    Inventors: Huan-Jan CHIEN, Chin-Cheng WANG, Chih-Hsien SHIH, Chih-Kuan SHIH
  • Patent number: 9702364
    Abstract: A structural improvement of the canned pump is to improve the stiffness of a stationary shaft and, according to requirement, to dispose a monitor device. The method for improving the stiffness of the stationary shaft includes axially inserting a shaft metal rear support of the metal structural of a motor rear casing of a canned motor into the inner side of a rotor yoke of an inner rotor of the canned motor, tightly attaching the shaft metal rear support to a rear shaft seat for improving the stiffness of the stationary shaft by longer hold length, and for shortening an arm length of the composite force. The monitor device, used for detecting the wear of a bearing for enhancing the reliability and satisfying the driving requirement, is installed in the ring slot to be protected by the rear shaft seat.
    Type: Grant
    Filed: August 12, 2016
    Date of Patent: July 11, 2017
    Assignee: ASSOMA INC.
    Inventors: Huan-Jan Chien, Chin-Cheng Wang, Chih-Hsien Shih
  • Publication number: 20170184282
    Abstract: Disclosed are an LED illumination apparatus and its manufacturing method. A metal sheet is stamped to form a conductive plate with 3D space, and the conductive plate includes an illumination circuit, and a support frame for supporting the conductive plate to form different types of illumination apparatuses. The support frame is provided for supporting and fixing the conductive plate to facilitate the conductive plate to form a 3D curved surface, and an LED chip soldering point protection mechanism is provided for protecting each LED chip soldering point, so that the illumination apparatus is applicable for mass production to improve the yield rate and meet the high heat dissipation efficiency, large-range illumination, material saving, lightweight and/or environmental protection requirements.
    Type: Application
    Filed: July 25, 2016
    Publication date: June 29, 2017
    Inventors: HUAN JAN CHIEN, MING YANG TSAI
  • Patent number: 9670934
    Abstract: A sealless magnetic drive pump features in improving the stiffness of a stationary shaft. More particularly, the metal magnetic drive pump has an anti-corrosion casing liner. The magnetic drive pump is used in manufacture processes related to corrosive fluid. The pump is especially used in a highly corrosive and high-temperature (up to 200° C.) condition to improve the stiffness of a front support. The stationary shaft includes a metal front support integrated with the pump casing at a pump inlet and encapsulated with a resin enclosure made of a fluoropolymer; a rear shaft seat positioned on a sealed bottom side of a containment shell for offering auxiliary support for the stationary shaft; an impeller including a channel for reducing an inlet flow velocity to offer a low NPSHr.
    Type: Grant
    Filed: October 22, 2012
    Date of Patent: June 6, 2017
    Assignee: ASSOMA INC.
    Inventors: Huan-Jan Chien, Chin-Cheng Wang, Chih-Hsien Shih, Chih-Kuan Shih
  • Patent number: 9657924
    Abstract: A 3D curved structure and LED 3D curved lead frame for a curved surface illumination of an illumination device. First of all, draw illumination circuit with banded structure of multilayer lead frame on 3D illumination curved surface, then spread these curved circuit into plane circuit, dismantle the banded structure of multilayer lead frame of circuit into circuit pattern of single layers, use process the prototype of circuit patterns of each layer with conductive metal charge tape, and produce the prototype of banded structure of multilayer conductive frame through repeated accumulation of multi-disc charge tapes, and install the LED chip on the installation seat to get LED flat lead frame, then flex the conductive metal into LED 3D curved lead frame with jig and paste on the luminous curved surface, and package them with transparent material.
    Type: Grant
    Filed: November 17, 2015
    Date of Patent: May 23, 2017
    Assignee: LONGWIDE TECHNOLOGY INC.
    Inventors: Huan-Jan Chien, Tsung-Hong Tsai
  • Patent number: 9631799
    Abstract: A 3D curved structure and LED 3D curved lead frame for a curved surface illumination of an illumination device. First of all, draw illumination circuit with banded structure of multilayer lead frame on 3D illumination curved surface, then spread these curved circuit into plane circuit, dismantle the banded structure of multilayer lead frame of circuit into circuit pattern of single layers, use process the prototype of circuit patterns of each layer with conductive metal charge tape, and produce the prototype of banded structure of multilayer conductive frame through repeated accumulation of multi-disc charge tapes, and install the LED chip on the installation seat to get LED flat lead frame, then flex the conductive metal into LED 3D curved lead frame with jig and paste on the luminous curved surface, and package them with transparent material.
    Type: Grant
    Filed: November 17, 2015
    Date of Patent: April 25, 2017
    Assignee: LONGWIDE TECHNOLOGY INC.
    Inventors: Huan-Jan Chien, Tsung-Hong Tsai
  • Patent number: 9599113
    Abstract: A structural improvement of the canned pump is to improve the stiffness of a stationary shaft and, according to requirement, to dispose a monitor device. The method for improving the stiffness of the stationary shaft includes axially inserting a shaft metal rear support of the metal structural of a motor rear casing of a canned motor into the inner side of a rotor yoke of an inner rotor of the canned motor, tightly attaching the shaft metal rear support to a rear shaft seat for improving the stiffness of the stationary shaft by longer hold length, and for shortening an arm length of the composite force. The monitor device, used for detecting the wear of a bearing for enhancing the reliability and satisfying the driving requirement, is installed in the ring slot to be protected by the rear shaft seat.
    Type: Grant
    Filed: October 22, 2012
    Date of Patent: March 21, 2017
    Assignee: ASSOMA INC.
    Inventors: Huan-Jan Chien, Chin-Cheng Wang, Chih-Hsien Shih
  • Patent number: 9557041
    Abstract: This invention relates to separately produce the complicated 3D curved structure and LED 3D curved lead frame to meet the demand of the complicated curved surface illumination of illumination device.
    Type: Grant
    Filed: January 4, 2013
    Date of Patent: January 31, 2017
    Assignee: LONGWIDE TECHNOLOGY INC.
    Inventors: Huan-Jan Chien, Tsung-Hong Tsai
  • Publication number: 20160363130
    Abstract: A structure improvement of a pump casing with a Polyfluoroalkoxy (PFA) liner which improves manufacturing efficiency, reduces manufacturing cost and improves yield strength, more particular to keep the stiffness of the shaft support and improve yield of the pump casing. The metal pump casing with the PFA liner used for handling corrosive liquids includes a suction casing with PFA liner, and a volute casing with PFA liner for accommodating an impeller. The volute casing also collects and then ejects the liquid through a discharge. The suction casing with the PFA liner and the volute casing with the PFA liner are separately formed as two workpieces by injection molding process and then assembled to form the pump casing so as to reduce the residual stress applied in the PFA liner.
    Type: Application
    Filed: November 23, 2015
    Publication date: December 15, 2016
    Inventors: CHIN-CHENG WANG, CHIH-HSIEN SHIH, CHIH-KUAN SHIH, YU-LUN JHANG, HUAN-JAN CHIEN, SHU-YEN CHIEN
  • Patent number: D917667
    Type: Grant
    Filed: February 12, 2019
    Date of Patent: April 27, 2021
    Assignee: Bueno Tehcnology Co., Ltd.
    Inventors: Huan-Jan Chien, Po-Wen Chen