Patents by Inventor Lei-Ti Huang
Lei-Ti Huang 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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Patent number: 8316629Abstract: The PTFE real twist yarn of the present invention is a PTFE real twist yarn obtained by twisting a polytetrafluoroethylene (PTFE) multi-filament slit yarn. The yarn has a circular cross-section with a circularity in the range of 10/8 to 10/10, where the circularity is expressed by the ratio between the major axis width and the minor axis width, the average fineness of filaments is in the range of 1.5 to 200 dtex, a fineness D is in the range of 50 to 6000 dtex, and a twist coefficient K expressed by Formula (1) is in the range of 10000 to 35000: twist coefficient K=number of twists T×(the fineness D of the PTFE real twist yarn)1/2??(1) where the number of twists T denotes the number of twists per meter and the fineness D is a total fineness.Type: GrantFiled: June 14, 2010Date of Patent: November 27, 2012Assignee: Yeu Ming Ti Chemical Industrial Co., Ltd.Inventors: James Huang, Chin-Chun Chou, Chin-Cha Chou, Wen-I Kuo, Lei-Ti Huang
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Patent number: 8158042Abstract: A polytetrafluoroethylene (PTFE) fiber includes a filament obtained by partially slitting an oriented PTFE film in a lengthwise direction of the film. Emboss processing is conducted linearly along the lengthwise direction of the film and like a zigzag shape or a convexo-concave shape in a width direction of the film, followed by slitting, whereby the filament includes a network structure in which single fibrils that are opened partially are arranged regularly. A PTFE short fiber is obtained by cutting the above filament and includes a branch structure. Thereby, a PTFE fiber with a small average fineness of single fibrils, a uniform fineness and a single-peak distribution with the peak at a center of fineness and with a high production yield and uniform and stable branch structure can be provided and a method for manufacturing the PTFE fiber can be provided.Type: GrantFiled: July 13, 2006Date of Patent: April 17, 2012Assignee: Yeu Ming Tai Chemical Industrial Co., Ltd.Inventors: James Huang, Chin-Chun Chou, Chin-Cha Chou, Shia-Chung Chen, Wen-I Kuo, Lei-Ti Huang
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Publication number: 20080264862Abstract: A membrane treating or forming method includes a membrane having two opposite surfaces and a number of perforations formed in the membrane, an area closer to one of the surfaces of the membrane is cooled with such as a cool device, and an area closer to the other surface of the membrane is heated in order to distort and deform the perforations of the membrane and for forming uneven or distorted or deformed perforations in the membrane and thus for preventing the perforations of the membrane from being blocked by dirt or particles. A cold device is disposed in and spaced away from the heat device for forming an inner peripheral space between the heat device and the cold device and for receiving the membrane.Type: ApplicationFiled: April 24, 2007Publication date: October 30, 2008Inventors: Shia Chung Chen, Lei Ti Huang, Ping Shun Hsu
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Publication number: 20080127477Abstract: A porous filter device is made or formed from a porous membrane which is disposed on a rod and has two edges dependent downwardly from the rod, and the edges of the porous membrane will then be hot-pressed together with such as ultrasonic or hypersonic waves, or high frequency waves or the like to easily and quickly form a tubular or cylindrical and porous filter device. The welded edges of the porous membrane may then be cut and removed from the porous filter device when the porous filter device is supported on the rod or after the porous filter device is removed from the rod.Type: ApplicationFiled: December 5, 2006Publication date: June 5, 2008Inventors: Shia Chung Chen, Lei Ti Huang
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Publication number: 20060257655Abstract: A polytetrafluoroethylene (PTFE) fiber includes a filament obtained by partially slitting an oriented PTFE film in a lengthwise direction of the film. Emboss processing is conducted linearly along the lengthwise direction of the film and like a zigzag shape or a convexo-concave shape in a width direction of the film, followed by slitting, whereby the filament includes a network structure in which single fibrils that are opened partially are arranged regularly. A PTFE short fiber is obtained by cutting the above filament and includes a branch structure. Thereby, a PTFE fiber with a small average fineness of single fibrils, a uniform fineness and a single-peak distribution with the peak at a center of fineness and with a high production yield and uniform and stable branch structure can be provided and a method for manufacturing the PTFE fiber can be provided.Type: ApplicationFiled: July 13, 2006Publication date: November 16, 2006Applicant: Yeu Ming Tai Chemical Industrial Co., Ltd.Inventors: James Huang, Chin-Chun Chou, Chin-Cha Chou, Shia-Chung Chen, Wen-I Kuo, Lei-Ti Huang
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Patent number: 7108912Abstract: A polytetrafluoroethylene (PTFE) fiber includes a filament obtained by partially slitting an oriented PTFE film in a lengthwise direction of the film. Emboss processing is conducted linearly along the lengthwise direction of the film and like a zigzag shape or a convexo-concave shape in a width direction of the film, followed by slitting, whereby the filament includes a network structure in which single fibrils that are opened partially are arranged regularly. A PTFE short fiber is obtained by cutting the above filament and includes a branch structure. Thereby, a PTFE fiber with a small average fineness of single fibrils, a uniform fineness and a single-peak distribution with the peak at a center of fineness and with a high production yield and uniform and stable branch structure can be provided and a method for manufacturing the PTFE fiber can be provided.Type: GrantFiled: March 8, 2005Date of Patent: September 19, 2006Assignee: Yeu Ming Tai Chemical Industrial Co., Ltd.Inventors: James Huang, Chin-Chun Chou, Chin-Cha Chou, Shia-Chung Chen, Wen-I Kuo, Lei-Ti Huang
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Publication number: 20050221084Abstract: A polytetrafluoroethylene (PTFE) fiber includes a filament obtained by partially slitting an oriented PTFE film in a lengthwise direction of the film. Emboss processing is conducted linearly along the lengthwise direction of the film and like a zigzag shape or a convexo-concave shape in a width direction of the film, followed by slitting, whereby the filament includes a network structure in which single fibrils that are opened partially are arranged regularly. A PTFE short fiber is obtained by cutting the above filament and includes a branch structure. Thereby, a PTFE fiber with a small average fineness of single fibrils, a uniform fineness and a single-peak distribution with the peak at a center of fineness and with a high production yield and uniform and stable branch structure can be provided and a method for manufacturing the PTFE fiber can be provided.Type: ApplicationFiled: March 8, 2005Publication date: October 6, 2005Applicant: Yeu Ming Tai Chemical Industrial Co., Ltd.Inventors: James Huang, Chin-Chun Chou, Chin-Cha Chou, Shia-Chung Chen, Wen-I Kuo, Lei-Ti Huang
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Patent number: 6949287Abstract: A PTFE fiber with a low density and having a network structure that allows effective performances to be given to its finished articles and a method for manufacturing the PTFE fiber are provided. The PTFE fiber is a filament obtained by giving a heat treatment to a biaxially stretched polytetrafluoroethylene (PTFE) film, followed by slitting partially in a lengthwise direction of the film. The filament includes a network structured fiber in which single fibers are opened partially in the width direction, and the filament is an aggregate of the single fibers. This fiber is manufactured as the filament by feeding a biaxially stretched PTFE film to a revolving pin roll with needles implanted thereon, the needles being arranged so that a plurality of rows run obliquely along a circumferential direction at substantially regular intervals, and slitting the film partially in a lengthwise direction. This PTFE filament may be cut into short fibers with a cutter. The short fibers include a branch structure.Type: GrantFiled: January 20, 2004Date of Patent: September 27, 2005Assignee: Yeu Ming Tai Chemical Industrial Co., Ltd.Inventors: James Huang, Chin-Chun Chou, Chin-Cha Chou, Shia-Chung Chen, Wen-I Kuo, Lei-Ti Huang
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Patent number: 6871806Abstract: A nanomaterial processing system is constructed to include a compressor adapted to compress a flow of air/liquid into a high-pressure flow of air/liquid, a material feeder adapted to feed a material into the high-pressure flow of air/liquid passing out of the compressor, enabling the fed material to be mixed with the high-pressure flow of air/liquid into a high-pressure material flow; a shunt collider adapted to shunt the high-pressure material flow into two sub-flows and to let the shunt sub-flows to collide into a collided material flow, and a high-speed cutting unit, which uses a diamond coating-coated cutting wheel to cut solid substances the collided material flow.Type: GrantFiled: April 28, 2003Date of Patent: March 29, 2005Assignees: Yeu Ming Tai Chemical Industrial Co., Ltd., Precision Machinery Research and Development CenterInventors: I-Shou Tsai, Pen-Yi Liao, Chin-Chun Chou, Wen-I Kuo, Lei-Ti Huang
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Patent number: 6807841Abstract: A detecting method can perform the drop test according to the exact grounding condition, thereby detecting the actual grounding data. In addition, the shock accelerometer on the tested point of the test object can obtain an experimented G value which is compared with the simulated G value that is obtained by inputting the grounding angles (the grounding angles are calculated according to the grounding pictures) into the simulation program. In addition, the drop test device can reduce interruption, thereby enhancing the whole detecting accuracy.Type: GrantFiled: April 8, 2003Date of Patent: October 26, 2004Inventors: Shia Chung Chen, Lei Ti Huang, Chin Chun Chou, Wen I Kuo, Chia Hung Shih
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Publication number: 20040200264Abstract: A detecting method can perform the drop test according to the exact grounding condition, thereby detecting the actual grounding data. In addition, the shock accelerometer on the tested point of the test object can obtain an experimented G value which is compared with the simulated G value that is obtained by inputting the grounding angles (the grounding angles are calculated according to the grounding pictures) into the simulation program. In addition, the drop test device can reduce interruption, thereby enhancing the whole detecting accuracy.Type: ApplicationFiled: April 8, 2003Publication date: October 14, 2004Inventors: Shia Chung Chen, Lei Ti Huang, Chin Chun Chou, Wen I. Kuo, Chia Hung Shih
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Publication number: 20040182956Abstract: A nanomaterial processing system is constructed to include a compressor adapted to compress a flow of air/liquid into a high-pressure flow of air/liquid, a material feeder adapted to feed a material into the high-pressure flow of air/liquid passing out of the compressor, enabling the fed material to be mixed with the high-pressure flow of air/liquid into a high-pressure material flow; a shunt collider adapted to shunt the high-pressure material flow into two sub-flows and to let the shunt sub-flows to collide into a collided material flow, and a high-speed cutting unit, which uses a diamond coating-coated cutting wheel to cut solid substances the collided material flow.Type: ApplicationFiled: April 28, 2003Publication date: September 23, 2004Applicant: Shin-Hun Technology Co., Ltd.Inventors: I-Shou Tsai, Pen-Yi Liao, Chin-Chun Chou, Wen-I Kuo, Lei-Ti Huang
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Publication number: 20040175567Abstract: A PTFE fiber with a low density and having a network structure that allows effective performances to be given to its finished articles and a method for manufacturing the PTFE fiber are provided. The PTFE fiber is a filament obtained by giving a heat treatment to a biaxially stretched polytetrafluoroethylene (PTFE) film, followed by slitting partially in a lengthwise direction of the film. The filament includes a network structured fiber in which single fibers are opened partially in the width direction, and the filament is an aggregate of the single fibers. This fiber is manufactured as the filament by feeding a biaxially stretched PTFE film to a revolving pin roll with needles implanted thereon, the needles being arranged so that a plurality of rows run obliquely along a circumferential direction at substantially regular intervals, and slitting the film partially in a lengthwise direction. This PTFE filament may be cut into short fibers with a cutter. The short fibers include a branch structure.Type: ApplicationFiled: January 20, 2004Publication date: September 9, 2004Applicant: YEU MING TAI CHEMICAL INDUSTRIAL CO., LTD.Inventors: James Huang, Chin-Chun Chou, Chin-Cha Chou, Shia-Chung Chen, Wen-I Kuo, Lei-Ti Huang
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Patent number: 6702971Abstract: To provide a method of producing a uniaxially stretched polytetrafluoroethylene gasket tape, which comprises: (1) a step for preparing a paste comprising a mixture of a polytetrafluoroethylene powder obtained by emulsion polymerization and an extrusion aid, (2) a step for extruding the paste by means of an extruder equipped with a die which has plural separators inside an orifice thereof having a rectangular cross section, (3) a step for rolling, in the extruding direction, an extrudate having slit lines to give a rolled polytetrafluoroethylene sheet, (4) a step for uniaxially stretching the rolled sheet in the rolling direction after removing the extrusion aid from the rolled sheet, and (5) a step for heat-treating the obtained uniaxially stretched polytetrafluoroethylene sheet. The die of the extruder has plural sheet-like separators in the orifice thereof having a rectangular cross section.Type: GrantFiled: November 2, 2001Date of Patent: March 9, 2004Assignee: Yeu Ming Tai Chemical Industrial Co., Ltd.Inventors: James Huang, William Chou, David Chou, Shia-Chung Chen, Woh-Jer Lee, Lei-Ti Huang, Ching-Yao Huang
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Publication number: 20030015821Abstract: To provide a method of producing a uniaxially stretched polytetrafluoroethylene gasket tape, which comprises: (1) a step for preparing a paste comprising a mixture of a polytetrafluoroethylene powder obtained by emulsion polymerization and an extrusion aid, (2) a step for extruding the paste by means of an extruder equipped with a die which has plural separators inside an orifice thereof having a rectangular cross section, (3) a step for rolling, in the extruding direction, an extrudate having slit lines to give a rolled polytetrafluoroethylene sheet, (4) a step for uniaxially stretching the rolled sheet in the rolling direction after removing the extrusion aid from the rolled sheet, and (5) a step for heat-treating the obtained uniaxially stretched polytetrafluoroethylene sheet. The die of the extruder has plural sheet-like separators in the orifice thereof having a rectangular cross section.Type: ApplicationFiled: November 2, 2001Publication date: January 23, 2003Applicant: YEU MING TAI CHEMICAL INDUSTRIAL CO., LTD.Inventors: James Huang, William Chou, David Chou, Shia-Chung Chen, Woh-Jer Lee, Lei-Ti Huang, Ching-Yao Huang