Patents by Inventor Huisheng HAN
Huisheng HAN 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: 20230360865Abstract: A rubber and metal composite electric contact and a preparation process therefor. The rubber and metal composite electric contact is a circular layered complex which is formed by tightly combining a metal sheet layer having a plurality of through holes and a rubber layer by means of thermal vulcanization molding and which has a thickness of 0.1 to 5 mm and a diameter of 1 to 15 mm. There is no isolation layer between the rubber layer and the metal layer of the electric contact, so no rubber overflows the outer surface of the metal layer. In the rubber and metal composite electric contact, the rubber and metal are combined firmly and the overall strength of the electric contact is adjustable; the electric contact also has good dust resistance; and the electric contact thus has stable and reliable electrical conductivity.Type: ApplicationFiled: September 22, 2021Publication date: November 9, 2023Applicant: NANTONG MEMTECH TECHNOLOGIES CO., LTDInventors: Huisheng HAN, Yang DING, Lu CHEN, Hongmei ZHANG, Linyu YE, Xiaosheng WU, Guoqiang WU, Cheng HUANG
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Patent number: 11383996Abstract: The present invention discloses an oil-contained wastewater treatment apparatus applying the integrative physical methods. The wastewater treatment system of the invention may include a main tank, where the upper part is a rectangular body and the lower part is designed to a multi-bucket bottom structure. Two oil collection boxes are arranged to both outside ends of tank. A mud discharging outlet is attached to the bottom of the tank. Meanwhile, both of a water outlet and an electric polarizer are localized at the end face of the effluent on the tank. A power supply for the electro-adsorber is fixed to the inlet end on the top face of the tank. Divided by upper and lower deflectors, the inside of the tank is divided to three processing units, i.e., sludge-water separation unit, degradation-coalescence treatment unit, and sedimentation-electric polarization unit. Vortex centripetal gas flotation is applied to remove oil. Electro-adsorption induces the micelle clustering to achieve the decolorization.Type: GrantFiled: October 17, 2018Date of Patent: July 12, 2022Assignee: Shandong HYGIYA ENVIRONMENTAL PROTECTION EQUIPMENT CO. LTD.Inventors: Liping Wei, Hongyu Xu, Huisheng Han, Dongdong Zhang, Rui Sun, Hua Zhang, Lingli Ren, Liqing Wang, Bao Liu, Liqin Han
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Publication number: 20210331959Abstract: The present invention discloses an oil-contained wastewater treatment apparatus applying the integrative physical methods. The wastewater treatment system of the invention may include a main tank, where the upper part is a rectangular body and the lower part is designed to a multi-bucket bottom structure. Two oil collection boxes are arranged to both outside ends of tank. A mud discharging outlet is attached to the bottom of the tank. Meanwhile, both of a water outlet and an electric polarizer are localized at the end face of the effluent on the tank. A power supply for the electro-adsorber is fixed to the inlet end on the top face of the tank. Divided by upper and lower deflectors, the inside of the tank is divided to three processing units, i.e., sludge-water separation unit, degradation-coalescence treatment unit, and sedimentation-electric polarization unit. Vortex centripetal gas flotation is applied to remove oil. Electro-adsorption induces the micelle clustering to achieve the decolorization.Type: ApplicationFiled: October 17, 2018Publication date: October 28, 2021Inventors: Liping WEI, Hongyu XU, Huisheng HAN, Dongdong ZHANG, Rui SUN, Hua ZHANG, Lingli REN, Liqing WANG, Bao LIU, Liqin HAN
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Patent number: 10224156Abstract: The present invention discloses a de-bouncing keypad and a preparation method thereof, wherein the keypad is composed of a rubber substrate and a metal contact having three layers of layered structures. A layer of tin alloy or lead alloy is plated on a surface of the metal contact by electroplating or chemical plating. The metal contact plated with the tin alloy or lead alloy has excellent contact bouncing resistance and arc-ablation resistance, and the metal contact is further composited with the rubber to shape and prepare the rubber de-bouncing keypad.Type: GrantFiled: July 15, 2015Date of Patent: March 5, 2019Assignee: Nantong Memtech Technologies Co., Ltd.Inventors: Huisheng Han, Zhenxing Wang, Yang Ding, Hongmei Zhang, Zhihao Dong, Jie Shi
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Patent number: 10079119Abstract: An arc-ablation resistant tungsten alloy switch contact and preparation method is disclosed. A contact member has a three-layer structure, wherein a first layer is a hydrophobic rubber layer, a second layer is a sheet metal layer, and a third layer is a tungsten alloy chemical deposition layer. A plating bath adopted in the chemical deposition contains 25-125 g/L soluble tungsten compound, 0-60 g/L soluble compound of a transition metal like ferrum, nickel, cobalt, copper or manganese, and 0-30 g/L soluble compound of tin, stibium, lead or bismuth. When a layered complex of the hydrophobic rubber layer and the sheet metal layer is chemically plated by the plating bath, a tungsten alloy plated layer is selectively deposited on a metal surface, and chemical deposition of the tungsten alloy does not occur on a surface of the hydrophobic rubber fundamentally.Type: GrantFiled: July 15, 2015Date of Patent: September 18, 2018Assignee: NANTONG MEMTECH TECHNOLOGIES CO., LTD.Inventors: Huisheng Han, Zhenxing Wang, Yang Ding, Hongmei Zhang
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Patent number: 10026565Abstract: A switch contact element, having a layered structure comprising three layers: the bottom layer is silicone rubber, the middle layer is a continuous base metal sheet layer, and the upper layer is a discontinuous (stripe-shaped, raised-point-shaped or lattice-shaped) precious metal plated layer or a double-metal composite layer of a discontinuous base metal plated layer and a precious metal plated layer. The thickness of the bottom layer is greater than that of the middle layer, the thickness of the middle layer is greater than that of the upper layer, and the thickness of the upper layer meets the conditions that the conductive current is greater than safe current of conductive contacts on a circuit board, and the service life of a switch for the design is ensured.Type: GrantFiled: November 12, 2014Date of Patent: July 17, 2018Assignee: NANTONG MEMTECH TECHNOLOGY CO., LTD.Inventors: Huisheng Han, Hongmei Zhang, Yuan Chen, Yang Ding, Guoqiang Wu
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Patent number: 10026564Abstract: This invention discloses a preparation method for precious metal switching contact components by means of plating masking, plating and etching processes. The plating masking process is performed by using a plating mask ink with or without a photo exposure machine. Plating of precious metals is performed by electroless plating or electro plating methods. Etching is carried out with etching solutions containing weak organic acids, weak inorganic acids or acidic buffering agents. Improvement of the etched surface gloss and prevention of the side etching are realized with the sulfur-contained compounds. The dust- and oil stain-resistances of the switch contacts are improved by increasing the etching depth. The switch contacts made by this invention are featured with the advantages of good reliability, good resistance to dust and oil stain, short contact bounce time, long service life, low cost of raw materials and so on.Type: GrantFiled: September 15, 2014Date of Patent: July 17, 2018Assignee: NANTONG MEMTECH TECHNOLOGY CO., LTD.Inventors: Huisheng Han, Hongmei Zhang, Yang Ding, Zhihong Dong, Cheng Huang
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Patent number: 9905376Abstract: An arc-ablation resistant switch contact and a preparation method thereof is disclosed. The switch contact is a complex having a plurality of layers of layered structure, wherein a first layer is a hydrophobic rubber layer, a second layer is an adhesive layer, a third layer is a sheet metal layer, a fourth layer is an adhesive layer, and a fifth layer is a metal plated layer; wherein, the fifth layer of metal plated layer is formed by dipping a complex of the first layer, the second layer, the third layer and the fourth layer in a chemical plating bath containing refractory metal elements, and depositing on surfaces of the second layer, the third layer and the fourth layer in the complex by a chemical deposition method.Type: GrantFiled: July 15, 2015Date of Patent: February 27, 2018Assignee: Nantong Memtech Technologies Co., Ltd.Inventors: Huisheng Han, Zhenxing Wang, Yang Ding, Hongmei Zhang
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Publication number: 20170133174Abstract: The present invention discloses a de-bouncing keypad and a preparation method thereof, wherein the keypad is composed of a rubber substrate and a metal contact having three layers of layered structures. A layer of tin alloy or lead alloy is plated on a surface of the metal contact by electroplating or chemical plating. The metal contact plated with the tin alloy or lead alloy has excellent contact bouncing resistance and arc-ablation resistance, and the metal contact is further composited with the rubber to shape and prepare the rubber de-bouncing keypad.Type: ApplicationFiled: July 15, 2015Publication date: May 11, 2017Inventors: Huisheng Han, Zhenxing Wang, Yang Ding, Hongmei Zhang, Zhihao Dong, Jie Shi
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Publication number: 20170125179Abstract: An arc-ablation resistant switch contact and a preparation method thereof is disclosed. The switch contact is a complex having a plurality of layers of layered structure, wherein a first layer is a hydrophobic rubber layer, a second layer is an adhesive layer, a third layer is a sheet metal layer, a fourth layer is an adhesive layer, and a fifth layer is a metal plated layer; wherein, the fifth layer of metal plated layer is formed by dipping a complex of the first layer, the second layer, the third layer and the fourth layer in a chemical plating bath containing refractory metal elements, and depositing on surfaces of the second layer, the third layer and the fourth layer in the complex by a chemical deposition method.Type: ApplicationFiled: July 15, 2015Publication date: May 4, 2017Inventors: Huisheng Han, Zhenxing Wang, Yang Ding, Hongmei Zhang
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Publication number: 20170125180Abstract: An arc-ablation resistant tungsten alloy switch contact and preparation method is disclosed. A contact member has a three-layer structure, wherein a first layer is a hydrophobic rubber layer, a second layer is a sheet metal layer, and a third layer is a tungsten alloy chemical deposition layer. A plating bath adopted in the chemical deposition contains 25-125 g/L soluble tungsten compound, 0-60 g/L soluble compound of a transition metal like ferrum, nickel, cobalt, copper or manganese, and 0-30 g/L soluble compound of tin, stibium, lead or bismuth. When a layered complex of the hydrophobic rubber layer and the sheet metal layer is chemically plated by the plating bath, a tungsten alloy plated layer is selectively deposited on a metal surface, and chemical deposition of the tungsten alloy does not occur on a surface of the hydrophobic rubber fundamentally.Type: ApplicationFiled: July 15, 2015Publication date: May 4, 2017Inventors: Huisheng Han, Zhenxing Wang, Yang Ding, Hongmei Zhang
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Publication number: 20160372276Abstract: This invention discloses a preparation method for precious metal switching contact components by means of plating masking, plating and etching processes. The plating masking process is performed by using a plating mask ink with or without a photo exposure machine. Plating of precious metals is performed by electroless plating or electro plating methods. Etching is carried out with etching solutions containing weak organic acids, weak inorganic acids or acidic buffering agents. Improvement of the etched surface gloss and prevention of the side etching are realized with the sulfur-contained compounds. The dust- and oil stain-resistances of the switch contacts are improved by increasing the etching depth. The switch contacts made by this invention are featured with the advantages of good reliability, good resistance to dust and oil stain, short contact bounce time, long service life, low cost of raw materials and so on.Type: ApplicationFiled: September 15, 2014Publication date: December 22, 2016Inventors: Huisheng HAN, HONGMEI ZHANG, YANG DING, ZHIHONG DONG, CHENG HUANG
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Publication number: 20160126024Abstract: A switch contact element, having a layered structure comprising three layers: the bottom layer is silicone rubber, the middle layer is a continuous base metal sheet layer, and the upper layer is a discontinuous (stripe-shaped, raised-point-shaped or lattice-shaped) precious metal plated layer or a double-metal composite layer of a discontinuous base metal plated layer and a precious metal plated layer. The thickness of the bottom layer is greater than that of the middle layer, the thickness of the middle layer is greater than that of the upper layer, and the thickness of the upper layer meets the conditions that the conductive current is greater than safe current of conductive contacts on a circuit board, and the service life of a switch for the design is ensured.Type: ApplicationFiled: November 12, 2014Publication date: May 5, 2016Inventors: Huisheng HAN, HONGMEI ZHANG, YUAN CHEN, YANG DING, GUOQIANG WU