Patents by Inventor LIANG-HUI YEH
LIANG-HUI YEH 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: 20250108541Abstract: A method of manufacturing an article include: providing a molding device, wherein the molding device includes a first mold, a second mold, the first mold includes a supporting member protruded from a inner wall; cooling a core to reduce a temperature of the core from a first temperature to a second temperature; disposing the core on the supporting member; engaging the second mold with the first mold to form a mold cavity defined by the first mold and the second mold, wherein the core having the second temperature is disposed within the mold cavity; injecting a first material into the mold cavity; and foaming the first material to form a first foamed member. At least a portion of the first foamed member is in contact with the core, and the first temperature is substantially higher than the second temperature. The core includes a hollow space enclosed by a layer.Type: ApplicationFiled: December 13, 2024Publication date: April 3, 2025Inventors: CHING-HAO CHEN, LIANG-HUI YEH, TING-WEI CHEN
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Publication number: 20250108546Abstract: An injection molding method is provided. A molding device and a runner plate over the molding device are provided. The molding device includes a first mold, a second mold over the first mold, and a mold cavity defined by the first mold and the second mold. The runner plate includes first and second runners communicable with the mold cavity and extending within the runner plate. A divider is placed within the runner plate, and the divider has a passage connectable to the first runner or the second runner. A mixture is injected into the mold cavity through the passage and the first runner, and the first mixture fails to flow into the mold cavity through the passage and the second runner. A foamed article is formed from the mixture inside the mold cavity.Type: ApplicationFiled: June 20, 2024Publication date: April 3, 2025Inventors: CHING-HAO CHEN, LIANG-HUI YEH
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Publication number: 20250083368Abstract: An injection molding system includes an injection station, a molding device, and a plunger. The injection station includes a platform including an opening and an injector over the platform. The molding device is disposed between the platform and the injector and over the opening, wherein the molding device includes a mold cavity and a clamping unit for clamping the molding device. The plunger under the platform, wherein the plunger includes a base and a rod extendable through the opening toward the molding device and retractable toward the base. An injection molding method includes conveying a molding device to an injection station and disposing the molding device between an injector and a platform; disposing a plunger under the platform; moving the injector towards the molding device; applying a plunging force on the molding device by extending the rod through the opening; and injecting a molding material into a mold cavity.Type: ApplicationFiled: November 24, 2024Publication date: March 13, 2025Inventors: LIANG-HUI YEH, CHING-HAO CHEN
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Patent number: 12240162Abstract: An injection molding system includes an extruding system, a discharging channel, a molding device including a first and second mold cavities, and a pressure regulating system regulates pressures inside the first and second mold cavities. An injection molding method includes providing a molding device having a first and second mold cavities, a first feeding port in communication with the first mold cavity, and a second feeding port in communication with the second mold cavity; sensing a first pressure in the first mold cavity, and injecting a first gas into the first mold cavity until the first mold cavity is sensed to have a first predetermined pressure; and sensing a second pressure in the second mold cavity, and injecting a second gas into the second mold cavity until the second mold cavity is sensed to have a second predetermined pressure, wherein the first and second predetermined pressures are different.Type: GrantFiled: December 6, 2022Date of Patent: March 4, 2025Assignee: OTRAJET INC.Inventors: Ching-Hao Chen, Liang-Hui Yeh
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Publication number: 20250065545Abstract: A molding device includes a mold and a pressure regulating system. The mold has a mold cavity and a feeding port in communication with the mold cavity. The pressure regulating system includes a first gas conduit coupled to the mold cavity, a first valve disposed at the first gas conduit, a pressure sensing unit configured to sense the pressure in the mold cavity, a second gas conduit coupled to the mold cavity, a second valve disposed at the second gas conduit. A molding method includes: providing a mold; sensing the pressure in the mold cavity, and injecting gas until it is sensed that the mold cavity has reached a first predetermined pressure; sensing the pressure in the mold cavity, and filling a material into the mold cavity having the first predetermined pressure; and discharging the gas in the mold cavity.Type: ApplicationFiled: November 8, 2024Publication date: February 27, 2025Inventor: LIANG-HUI YEH
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Publication number: 20250065552Abstract: An injection molding system includes an extruding system, a discharging channel, a molding device including a first and second mold cavities, and a pressure regulating system regulates pressures inside the first and second mold cavities. An injection molding method includes providing a molding device having a first and second mold cavities, a first feeding port in communication with the first mold cavity, and a second feeding port in communication with the second mold cavity; sensing a first pressure in the first mold cavity, and injecting a first gas into the first mold cavity until the first mold cavity is sensed to have a first predetermined pressure; and sensing a second pressure in the second mold cavity, and injecting a second gas into the second mold cavity until the second mold cavity is sensed to have a second predetermined pressure, wherein the first and second predetermined pressures are different.Type: ApplicationFiled: November 8, 2024Publication date: February 27, 2025Inventors: CHING-HAO CHEN, LIANG-HUI YEH
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Publication number: 20250050558Abstract: An injection molding method is provided. A molding device is provided and includes a first mold, a second mold over the first mold and a mold cavity defined by the first mold and the second mold. A first mixture is injected into the mold cavity through a first feeding port. A first component is formed from the first mixture. A second mixture is injected into the mold cavity through a second feeding port. A second component is formed from the second mixture. The second component is at least partially contact with the first component, and the first component and the second component have different physical properties.Type: ApplicationFiled: May 15, 2024Publication date: February 13, 2025Inventors: CHING-HAO CHEN, YI-CHUNG LEE, LIANG-HUI YEH
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Patent number: 12186954Abstract: An injection molding system includes an injection station, a molding device, and a plunger. The injection station includes a platform including an opening and an injector over the platform. The molding device is disposed between the platform and the injector and over the opening, wherein the molding device includes a mold cavity and a clamping unit for clamping the molding device. The plunger under the platform, wherein the plunger includes a base and a rod extendable through the opening toward the molding device and retractable toward the base. An injection molding method includes conveying a molding device to an injection station and disposing the molding device between an injector and a platform; disposing a plunger under the platform; moving the injector towards the molding device; applying a plunging force on the molding device by extending the rod through the opening; and injecting a molding material into a mold cavity.Type: GrantFiled: January 20, 2021Date of Patent: January 7, 2025Assignee: KING STEEL MACHINERY CO., LTD.Inventors: Liang-Hui Yeh, Ching-Hao Chen
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Publication number: 20240335985Abstract: A molding device includes a mold, having a mold cavity; a feeding port extending into the mold; a passage coupled to the feeding port and communicable with the mold cavity; and an opening coupled to the passage and communicable with the mold cavity, wherein the feeding port is disposed above the mold cavity, and the opening the disposed at a side of the mold cavity.Type: ApplicationFiled: June 20, 2024Publication date: October 10, 2024Inventor: LIANG-HUI YEH
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Publication number: 20240316843Abstract: An injection molding method includes providing a molding device including a first mold, a second mold over the first mold and a first mold cavity defined by the first mold and the second mold; injecting a first material into the first mold cavity; forming a first layer from the first material; replacing the second mold by a third mold; injecting a second material into a second mold cavity defined by the first mold and the third mold; and forming a second layer from the second material disposed over the first layer, wherein the first material is different from the second material.Type: ApplicationFiled: June 2, 2024Publication date: September 26, 2024Inventors: LIANG-HUI YEH, CHING-HAO CHEN
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Patent number: 12097651Abstract: A molding device includes a mold cavity defined by an upper mold, a lower mold and a middle mold being moveably attached to the lower mold; a position control mechanism configured to move the middle mold; and a gas discharging mechanism disposed adjacent to the mold cavity and including a gas conduit and a slit jointly defined by the upper mold and the lower mold when the molding device is closed, the slit is in communication with the mold cavity and the gas conduit. A molding method includes injecting a material into a mold cavity to form an article in the mold cavity; discharging at least a portion of a gas out of the mold cavity through a slit of a gas discharging mechanism adjacent to the mold cavity after the article is formed; disengaging a upper mold from a lower mold; and detaching the article from a middle mold.Type: GrantFiled: August 9, 2022Date of Patent: September 24, 2024Assignee: KING STEEL MACHINERY CO., LTD.Inventors: Ching-Hao Chen, Liang-Hui Yeh
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Patent number: 12090694Abstract: An injection molding system and method are disclosed. The injection molding system includes a molding device and injector. The molding device defines a mold cavity and includes an inlet portion in communication with the mold cavity. The injector includes a discharging channel. An end portion of the inlet portion and an end portion of the discharging channel have non-planar end surfaces respectively, which are engageable with each other.Type: GrantFiled: July 15, 2022Date of Patent: September 17, 2024Assignee: KING STEEL MACHINERY CO., LTD.Inventors: Ching-Hao Chen, Liang-Hui Yeh
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Patent number: 12053912Abstract: An extruding system includes a mixing unit configured to mix a polymeric material with a blowing agent and to form a mixture, and an injection unit coupled to the mixing unit and configured to inject the mixture. The mixing unit includes a mixing cartridge, a first mixing screw and a second mixing screw, the first and second mixing screws are disposed in the mixing cartridge. A method of extruding a mixture includes mixing a polymeric material and a blowing agent in a mixing cartridge of a mixing unit by at least one of a first and second mixing screws to form the mixture; conveying the mixture from the mixing unit to an injection unit; and discharging the mixture from the injection unit into a molding device. The mixture is sequentially in contact with the first mixing screw and the second mixing screw.Type: GrantFiled: November 17, 2020Date of Patent: August 6, 2024Assignee: KING STEEL MACHINERY CO., LTD.Inventors: Yi-Chung Lee, Liang-Hui Yeh, Ching-Hao Chen
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Patent number: 12049032Abstract: An injection molding method includes providing a molding device including a first mold, a second mold over the first mold and a first mold cavity defined by the first mold and the second mold; injecting a first material into the first mold cavity; forming a first layer from the first material; replacing the second mold by a third mold; injecting a second material into a second mold cavity defined by the first mold and the third mold; and forming a second layer from the second material disposed over the first layer, wherein the first material is different from the second material.Type: GrantFiled: January 12, 2021Date of Patent: July 30, 2024Assignee: KING STEEL MACHINERY CO., LTD.Inventors: Liang-Hui Yeh, Ching-Hao Chen
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Publication number: 20240181691Abstract: An injection molding system includes an extruding system, a discharging channel, a molding device including a first and second mold cavities, and a pressure regulating system regulates pressures inside the first and second mold cavities. An injection molding method includes providing a molding device having a first and second mold cavities, a first feeding port in communication with the first mold cavity, and a second feeding port in communication with the second mold cavity; sensing a first pressure in the first mold cavity, and injecting a first gas into the first mold cavity until the first mold cavity is sensed to have a first predetermined pressure; and sensing a second pressure in the second mold cavity, and injecting a second gas into the second mold cavity until the second mold cavity is sensed to have a second predetermined pressure, wherein the first and second predetermined pressures are different.Type: ApplicationFiled: December 6, 2022Publication date: June 6, 2024Inventors: CHING-HAO CHEN, LIANG-HUI YEH
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Publication number: 20240123662Abstract: An injection molding system includes a supplying unit configured to supply a flowable mixture; an injection unit communicable with the supplying unit, wherein the injection unit includes an outlet configured to discharge the flowable mixture; a molding device configured to receive the flowable mixture from the outlet and includes a mold cavity and a feeding port communicable with the mold cavity and engageable with the outlet; and a supporting device disposed between the injection unit and the molding device and configured to facilitate an engagement of the injection unit and the molding device. The supporting device includes a first element connected to the injection unit and a second element disposed on the molding device. The second element includes a slot configured to receive a protruding portion of the first element, the protruding portion of the first element is slidable within and along the slot of the second element.Type: ApplicationFiled: August 16, 2023Publication date: April 18, 2024Inventors: CHING-HAO CHEN, LIANG-HUI YEH
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Publication number: 20240051204Abstract: A molding device includes a mold cavity defined by an upper mold, a lower mold and a middle mold being moveably attached to the lower mold; a position control mechanism configured to move the middle mold; and a gas discharging mechanism disposed adjacent to the mold cavity and including a gas conduit and a slit jointly defined by the upper mold and the lower mold when the molding device is closed, the slit is in communication with the mold cavity and the gas conduit. A molding method includes injecting a material into a mold cavity to form an article in the mold cavity; discharging at least a portion of a gas out of the mold cavity through a slit of a gas discharging mechanism adjacent to the mold cavity after the article is formed; disengaging a upper mold from a lower mold; and detaching the article from a middle mold.Type: ApplicationFiled: August 9, 2022Publication date: February 15, 2024Inventors: CHING-HAO CHEN, LIANG-HUI YEH
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Publication number: 20240017456Abstract: An injection molding system and method are disclosed. The injection molding system includes a molding device and injector. The molding device defines a mold cavity and includes an inlet portion in communication with the mold cavity. The injector includes a discharging channel. An end portion of the inlet portion and an end portion of the discharging channel have non-planar end surfaces respectively, which are engageable with each other.Type: ApplicationFiled: July 15, 2022Publication date: January 18, 2024Inventors: CHING-HAO CHEN, LIANG-HUI YEH
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Patent number: 11865802Abstract: A main technical feature of a method for molding and forming a flip-flop and a mold thereof provided by the invention is that when a polymer raw material is filled into a mold chamber space of the mold, the filled raw material is preferentially flowed in a direction of a strap area space used to mold a V-shaped strap portion of the flip-flop to ensure that the slender V-shaped strap portion of the flip-flop can be integrally formed.Type: GrantFiled: December 9, 2021Date of Patent: January 9, 2024Assignee: OTRAJET INC.Inventors: Ching-Hao Chen, Liang-Hui Yeh
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Patent number: 11858228Abstract: A molding device and a molding method are disclosed. The molding device includes an upper mold, a lower mold and a middle mold. The lower mold is disposed below the upper mold. The middle mold is disposed between the upper mold and the lower mold. The middle mold is moveably attached to the lower mold through a position control mechanism.Type: GrantFiled: April 28, 2022Date of Patent: January 2, 2024Assignee: KING STEEL MACHINERY CO., LTD.Inventors: Ching-Hao Chen, Liang-Hui Yeh