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公开(公告)号：US11865802B2
公开(公告)日：2024-01-09
申请号：US17546749
申请日：2021-12-09
Applicant: OTRAJET INC.
Inventor： Ching-Hao Chen , Liang-Hui Yeh
Abstract: 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.
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公开(公告)号：US20230202130A1
公开(公告)日：2023-06-29
申请号：US18175297
申请日：2023-02-27
Applicant: OTRAJET INC.
Inventor： Ching-Hao CHEN , Liang-Hui YEH
Abstract: 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.
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公开(公告)号：US11131391B2
公开(公告)日：2021-09-28
申请号：US16516101
申请日：2019-07-18
Applicant: OTRAJET INC.
Inventor： Ching-Hao Chen
Abstract: The invention provides a valve disposed in a fluid supply path to control opening or closing of the supply path, configured to comprise, as components of the supply path, an inflow channel, a second channel, a first channel, and an outflow channel that are in communication with each other in sequence, in such a manner that fluid from a supply source entering the inflow channel passes through the second channel and the first channel in sequence and then flows out through the outflow channel. The valve further comprises a first valve piece and a second valve piece disposed movably in the first channel and the second channel respectively. Blocking or unblocking of the communication between the first channel and the outflow channel is controlled by movement of the first valve piece in the first channel, while blocking or unblocking of the communication between the inflow channel and the first channel via the second channel is controlled by movement of the second valve in the second channel. In this way, the valve enables opening or closing of the supply path through dual control by the first valve piece and the second valve piece.
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公开(公告)号：US20240181691A1
公开(公告)日：2024-06-06
申请号：US18062240
申请日：2022-12-06
Applicant: OTRAJET INC.
Inventor： CHING-HAO CHEN , LIANG-HUI YEH
CPC classification number: B29C45/77 , B29C45/0001 , B29C45/07 , B29C45/12 , B29C45/1816 , B29C2945/76006 , B29C2945/76257 , B29C2945/76381 , B29C2945/76498 , B29C2945/76735 , B29C2945/76859 , B29K2105/0005
Abstract: 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.
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公开(公告)号：US11712826B2
公开(公告)日：2023-08-01
申请号：US16748374
申请日：2020-01-21
Applicant: OTRAJET INC.
Inventor： Ching-Hao Chen , Liang-Hui Yeh
IPC: B29C44/42 , B29C44/02 , B29C44/60 , B29C45/04 , B29C45/07 , B29C45/13 , B29C44/58 , B29K105/04 , B29C45/06
CPC classification number: B29C44/425 , B29C44/02 , B29C44/427 , B29C44/60 , B29C45/0408 , B29C45/06 , B29C45/076 , B29C45/13 , B29C44/581 , B29K2105/04
Abstract: An injection-molding system includes an extruding system configured to produce a mixture; a discharging channel communicable with the extruding system and including an outlet configured to discharge the mixture; and molding devices configured to receive the mixture. Each of the molding devices includes a hollow space, and a feeding port communicable with the hollow space and engageable with the outlet. An injection-molding method includes providing an extruding system configured to produce a mixture, a discharging channel including an outlet, and first and second molding devices; engaging the outlet with the first molding device; injecting the mixture into the first molding device; disengaging the outlet from the first molding device; moving the discharging channel away from the first molding device and toward the second molding device; engaging the outlet with the second molding device; injecting the mixture into the second molding device; and disengaging the outlet from the second molding device.
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Patent Agency Ranking
公开(公告)号：US20230144539A1
公开(公告)日：2023-05-11
申请号：US17546749
申请日：2021-12-09
Applicant: OTRAJET INC.
Inventor： Ching-Hao CHEN , Liang-Hui YEH
Abstract: 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.
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公开(公告)号：US10913189B2
公开(公告)日：2021-02-09
申请号：US15647087
申请日：2017-07-11
Applicant: OTRAJET INC.
Inventor： Fa-Shen Chen
IPC: B29C44/42 , B29C45/18 , B29C44/34 , B29C48/92 , B29B7/74 , B29B7/94 , B29C45/58 , B29C45/54 , B29C45/02 , B29C45/17
Abstract: A mechanism for mixing a supercritical fluid and a polymer raw material melt provided by the present invention includes a hot-melting unit, a mixing unit, and a supercritical fluid supplying unit. The mixing unit, independently of the hot-melting unit, receives a polymer melt from the hot-melting unit and a supercritical fluid from the supercritical fluid supplying unit, respectively, and mixes the polymer melt and the supercritical fluid into a homogenous single-phase solution. The hot-melting unit is provided with a pushing member for pushing a polymer raw material. The mixing unit is provided with a mixing rotor for mixing the polymer melt and the supercritical fluid.
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公开(公告)号：US10821634B2
公开(公告)日：2020-11-03
申请号：US15674728
申请日：2017-08-11
Applicant: OTRAJET INC.
Inventor： Ching-Hao Chen
IPC: B29C43/00 , B29C43/36 , B29K105/04
Abstract: The present invention provides a method for compression-molding a foamed polymer article, where compared with the shape of a final product to be molded, a foamed blank article has a redundant protruding part at a particular position, which is different from the shape of the final product; and when the foamed blank is hot-melt-molded again by using a mold, an external force is applied to compress the redundant protruding part to reduce the volume and increase the density, so that the final product obtained has a higher density at the position corresponding to the redundant protruding part than other parts. Thereby, the final product can have different densities at different positions, so as to meet the requirements in practical application.
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公开(公告)号：US20200223118A1
公开(公告)日：2020-07-16
申请号：US16831386
申请日：2020-03-26
Applicant: OTRAJET INC.
Inventor： FA-SHEN CHEN
IPC: B29C48/00 , B29C48/285 , B29C44/34 , B29C48/255 , B29C48/92
Abstract: An extruding system includes a melting unit configured to convey a polymeric material, a mixing unit configured to mix the polymeric material with a blowing agent to form a mixture, an injection unit configured to inject the mixture, a first flow control element disposed between the melting unit and the mixing unit, and a second flow control element disposed between the mixing unit and the injection unit. A method of extruding includes conveying a polymeric material from a melting unit to a mixing unit, conveying a blowing agent into the mixing unit, mixing the polymeric material with the blowing agent to form a mixture, conveying the mixture from the mixing unit to an injection unit, and discharging the mixture from the injection unit, wherein flow of the polymeric material is controlled by a first flow control element, and flow of the mixture is controlled by a second flow control element.
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公开(公告)号：US11806908B2
公开(公告)日：2023-11-07
申请号：US16831386
申请日：2020-03-26
Applicant: OTRAJET INC.
Inventor： Fa-Shen Chen , Liang-Hui Yeh
IPC: B29C48/00 , B29C48/255 , B29C48/92 , B29C44/34 , B29C48/285 , B29C44/42 , B29C45/18
CPC classification number: B29C48/0012 , B29C44/3446 , B29C48/2552 , B29C48/285 , B29C48/92 , B29C44/348 , B29C44/3423 , B29C44/42 , B29C45/1808
Abstract: An extruding system includes a melting unit configured to convey a polymeric material, a mixing unit configured to mix the polymeric material with a blowing agent to form a mixture, an injection unit configured to inject the mixture, a first flow control element disposed between the melting unit and the mixing unit, and a second flow control element disposed between the mixing unit and the injection unit. A method of extruding includes conveying a polymeric material from a melting unit to a mixing unit, conveying a blowing agent into the mixing unit, mixing the polymeric material with the blowing agent to form a mixture, conveying the mixture from the mixing unit to an injection unit, and discharging the mixture from the injection unit, wherein flow of the polymeric material is controlled by a first flow control element, and flow of the mixture is controlled by a second flow control element.
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