Patents by Inventor Wenfeng Chen
Wenfeng Chen 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: 11994273Abstract: A light fixture with redundancy protection includes a light head with a light source inside, a driving mechanism for driving the light head to change the projection direction, an angle detector for detecting the projection direction of the light head, and an original micro-control unit and a redundancy micro-control unit both being coupled to a controller. The original micro-control unit serves to receive an angle control signal from the controller and forward same to the driving mechanism, the redundancy micro-control unit serves to receive the angle control signal from the original micro-control unit or the controller, and both the original micro-control unit and the redundancy micro-control unit are coupled to the angle detector. A safety protection unit coupled to the controller is further included which is for conducting safety protection actions according to a feedback signal from the original micro-control unit or from the redundancy micro-control unit.Type: GrantFiled: August 31, 2023Date of Patent: May 28, 2024Assignee: GUANGZHOU HAOYANG ELECTRONIC CO., LTD.Inventors: Yingru Peng, Weikai Jiang, Weiliang Chen, Wenfeng Chen, Zhiguang Liang
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Patent number: 11988373Abstract: A light fixture with self-test ability of sealing includes a light head with a head housing, a light source for emitting light and generating heat, and a temperature sensor and an air pressure sensor for respectively detecting the temperature and air pressure inside the head housing are provided in the head housing. A controller is further included for determining the sealing performance of the head housing based on the detection results of the temperature sensor and the air pressure sensor. The head housing is provided with a waterproof breathable valve allowing the internal space of the head housing in air communication with the external space of the light fixture. A switch is configured which is capable of switching between two states by unblocking/blocking the waterproof breathable valve to make the internal space of the head housing in air communication with the external space of the light fixture or not.Type: GrantFiled: May 23, 2023Date of Patent: May 21, 2024Assignee: GUANGZHOU HAOYANG ELECTRONIC CO., LTD.Inventors: Weikai Jiang, Jinjian Cai, Wenfeng Chen, Qingbi He, Yinru Peng
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Publication number: 20240156736Abstract: A lacosamide pharmaceutical composition as well as a preparation method and application thereof are provided. According to the lacosamide pharmaceutical composition, lacosamide or a pharmaceutically acceptable salt thereof can be dissolved out at the same time, wherein the dissolution rate of the lacosamide pharmaceutical composition is not more than 40% within 1 hour, the dissolution rate of the lacosamide pharmaceutical composition is 20-70% within 6 hours, and the dissolution rate of the lacosamide pharmaceutical composition is not less than 65% within 24 hours. The lacosamide pharmaceutical composition has good slow release performance, the tablet size can be rapidly expanded in the in-vitro dissolution process, the expanded lacosamide pharmaceutical composition has good rigidity and elasticity and has a remarkable retention effect in the stomach, and the cumulative release rate within 24 hours can reach 80% or above.Type: ApplicationFiled: March 16, 2022Publication date: May 16, 2024Inventors: Zhen GUO, Zuyou CHEN, Lina CHEN, Tingting WANG, Shuhuan YING, Wenfeng XIE
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Patent number: 11933138Abstract: A sliding sleeve device has an outer cylinder, a circulation hole being provided in the wall of the outer cylinder; and an inner cylinder provided in an inner cavity of the outer cylinder. In an initial state, the inner cylinder and the outer cylinder are fixed to each other to seal the circulation hole. In a first state, the inner cylinder is movable relative to the outer cylinder, thereby unsealing the circulation hole. A protection mechanism is provided in the circulation hole, which has an inner member located on the radially inner side and an outer member located on the radially outer side.Type: GrantFiled: June 10, 2021Date of Patent: March 19, 2024Assignees: CHINA PETROLEUM & CHEMICAL CORPORATION, SINOPEC SOUTHWEST OIL & GAS COMPANYInventors: Zhimin Hou, Dan Hu, Qiang Wang, Yijun Zhou, Jiang Qian, Chen Chen, Tao Liu, Jianfa Ci, Wenfeng Pang, Wenjiang Teng
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Patent number: 11920714Abstract: A sealing structure includes an inner pipe, an outer pipe, and a sealing ring, where the outer pipe is detachably sleeved on the inner pipe, a slot for inserting a pipe is formed between an inner wall of the outer pipe and an outer wall of the inner pipe, and the outer wall of the inner pipe is provided with a sealing groove for placing the sealing ring; the sealing ring includes a main body provided with a lip; the sealing groove includes a first sealing groove and a second sealing groove, the first sealing groove and the second sealing groove are stepped; the bottom of the lip fits the bottom of the first sealing groove; and the bottom of the main body fits the bottom of the second sealing groove.Type: GrantFiled: June 5, 2020Date of Patent: March 5, 2024Assignees: RIFENG ENTERPRISE (FOSHAN) CO., LTD., RIFENG ENTERPRISE GROUP CO., LTD., RiFeng New Material Co., Ltd.Inventors: Zhenbin Diao, Ximin Li, Xiyong Lin, Jiajia Cheng, Wenfeng Chen, Huijian Cao, Ali Chen
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Publication number: 20230408147Abstract: A fire grate, a manufacturing method thereof, and a burner and a water heater applying the fire grate are provided. The fire grate has a fire grate body, a flame stabilizer and a metal mesh. The fire grate body forms a ventilation channel. A dividing hole in communication with the ventilation channel is provided at a top portion of the fire grate body. The flame stabilizer is provided at the upper portion of the fire grate body. A cavity with a top surface as an opening is formed within the flame stabilizer. A gap is formed between a sidewall of the cavity and a surface of the fire grate body. The gap is in communication with the ventilation channel. The metal mesh is attached onto the fire grate body at a position corresponding to the dividing hole.Type: ApplicationFiled: August 30, 2023Publication date: December 21, 2023Applicants: WUHU MIDEA KITCHEN AND BATH APPLIANCES MFG. CO., LTD., MIDEA GROUP CO., LTD.Inventors: Wenfeng CHEN, Jin WANG, Guorong LIANG
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Patent number: 11749160Abstract: Provided is a level conversion circuit. The level conversion circuit includes at least two level conversion sub-circuits; and each of the level conversion sub-circuits is further connected to at least one first power supply terminal, at least one second power supply terminal and at least one of a plurality of output signal terminals, wherein the first power supply signals provided by the first power supply terminals connected to the at least two level conversion sub-circuits are at different levels, and the second power supply signals provided by the second power supply terminals connected to the at least two level conversion sub-circuits are at different levels.Type: GrantFiled: October 12, 2021Date of Patent: September 5, 2023Assignees: Fuzhou BOE Optoelectronics Technology Co., LTD, BOE Technology Group Co., LTDInventors: Xin Chen, Kai Diao, Qingna Hou, Meizhen Chen, Hongzhou Xie, Renhui Yu, Ying Tian, Xiaoyang Liu, Zhiqun Chen, Wenfeng Chen
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Publication number: 20230106665Abstract: Provided is a level conversion circuit. The level conversion circuit includes at least two level conversion sub-circuits; and each of the level conversion sub-circuits is further connected to at least one first power supply terminal, at least one second power supply terminal and at least one of a plurality of output signal terminals, wherein the first power supply signals provided by the first power supply terminals connected to the at least two level conversion sub-circuits are at different levels, and the second power supply signals provided by the second power supply terminals connected to the at least two level conversion sub-circuits are at different levels.Type: ApplicationFiled: October 12, 2021Publication date: April 6, 2023Inventors: Xin Chen, Kai Diao, Qingna Hou, Meizhen Chen, Hongzhou Xie, Renhui Yu, Ying Tian, Xiaoyang Liu, Zhiqun Chen, Wenfeng Chen
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Publication number: 20220307636Abstract: A sealing structure includes an inner pipe, an outer pipe, and a sealing ring, where the outer pipe is detachably sleeved on the inner pipe, a slot for inserting a pipe is formed between an inner wall of the outer pipe and an outer wall of the inner pipe, and the outer wall of the inner pipe is provided with a sealing groove for placing the sealing ring; the sealing ring includes a main body provided with a lip; the sealing groove includes a first sealing groove and a second sealing groove, the first sealing groove and the second sealing groove are stepped; the bottom of the lip fits the bottom of the first sealing groove; and the bottom of the main body fits the bottom of the second sealing groove.Type: ApplicationFiled: June 5, 2020Publication date: September 29, 2022Inventors: Zhenbin Diao, Ximin Li, Xiyong Lin, Jiajia Cheng, Wenfeng Chen, Huijian Cao, Ali Chen
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Patent number: 11371698Abstract: Provided are a burner and a water heater. The burner comprises multiple flame splitters, and each of the flame splitters is provided with at least three ejector pipes, and the multiple flame splitters are arranged parallel to one another; a fastener penetrates through the multiple flame splitters and connects the multiple flame splitters into a flame row; and compressing members are arranged at end parts where the fastener extends relative to the flame row, and the compressing members compress the flame row. The burner is integrally installed, easy to operate and firmly fixed, the combustion intensity can also be increased, the emission of nitrogen oxides is reduced, and the safety of use is ensured.Type: GrantFiled: June 13, 2018Date of Patent: June 28, 2022Inventors: Wenfeng Chen, Xianchao Meng, Guorong Liang
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Patent number: 11346479Abstract: A pipe fitting joint assembly including a guide sleeve, provided with a first concave-convex structure on the outer wall of one end thereof, a connecting body, provided with a second concave-convex structure on the inner walls of both ends thereof, and an inner gear ring provided with a third concave-convex structure on an inner ring thereof and a fourth concave-convex structure on an outer ring thereof. The inner gear ring is concentrically inserted into the connecting body. The fourth concave-convex structure and the second concave-convex structure are in interference fit. The guide sleeve is concentrically inserted into the inner ring gear of the connecting body. The first concave-convex structure and the fourth concave-convex structure are in clearance fit therebetween using a moving interference manner.Type: GrantFiled: December 29, 2018Date of Patent: May 31, 2022Assignees: RIFENG ENTERPRISE (FOSHAN) CO., LTD., RIFENG ENTERPRISE GROUP CO., LTD., RIFENG TECHNOLOGY CO., LTD.Inventors: Xiyong Lin, Jiajia Cheng, Zhenbin Diao, Xin Li, Huijian Cao, Wenfeng Chen, Jianbo Liao, Ximin Li, Ali Chen
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Publication number: 20210215336Abstract: Provided are a burner and a water heater. The burner comprises multiple flame splitters, and each of the flame splitters is provided with at least three ejector pipes, and the multiple flame splitters are arranged parallel to one another; a fastener penetrates through the multiple flame splitters and connects the multiple flame splitters into a flame row; and compressing members are arranged at end parts where the fastener extends relative to the flame row, and the compressing members compress the flame row. The burner is integrally installed, easy to operate and firmly fixed, the combustion intensity can also be increased, the emission of nitrogen oxides is reduced, and the safety of use is ensured.Type: ApplicationFiled: June 13, 2018Publication date: July 15, 2021Inventors: Wenfeng CHEN, Xianchao MENG, Guorong LIANG
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Publication number: 20200166243Abstract: A burner (100) and a gas water heater with the same are provided. The burner (100) includes a fire line (10), the fire line (10) defines a mixing chamber (101) therein and has an inlet (102), a main outlet, and an assistant outlet. The fire line (10) includes a first sheet (11); a second sheet (12), the second sheet (12) is opposite the first sheet (11) and defines the mixing chamber (101); and a partition plate (13) provided between the first sheet (11) and the second sheet (12), the partition plate (13) is provided with the main outlet, and the partition plate (13) and at least one of the first sheet (11) and the second sheet (12) define the assistant outlet.Type: ApplicationFiled: December 5, 2019Publication date: May 28, 2020Inventors: Wenfeng CHEN, Xianchao MENG, Guorong LIANG
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Publication number: 20200096145Abstract: A pipe fitting joint assembly, comprising: a guide sleeve, provided with a first concave-convex structure on the outer wall of one end thereof; a connecting body, provided with a second concave-convex structure on the inner walls of both ends thereof; and an inner gear ring, provided with a third concave-convex structure on an inner ring thereof and a fourth concave-convex structure on an outer ring thereof. The inner gear ring is concentrically inserted into the connecting body; the fourth concave-convex structure and the second concave-convex structure are in interference fit; the guide sleeve is concentrically inserted into the inner ring gear of the connecting body; and the first concave-convex structure and the fourth concave-convex structure are in clearance fit therebetween using a moving interference manner.Type: ApplicationFiled: December 29, 2018Publication date: March 26, 2020Applicants: RIFENG ENTERPRISE (FOSHAN) CO., LTD., RIFENG ENTERPRISE GROUP CO., LTD., RIFENG TECHNOLOGY CO., LTD.Inventors: Xiyong Lin, Jiajia Cheng, Zhenbin Diao, Xin Li, Huijian Cao, Wenfeng Chen, Jianbo Liao, Ximin Li, Ali Chen
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Patent number: 8230513Abstract: A traffic controller is provided which integrates black-box tests of unauthorized applications to extract application characteristics from associated Internet traffic, exploits the networking information learned by host clients, actively scans and controls hosts on the corporate network, and dynamically configures a corporate firewall to block traffic to and from critical application network elements. As a result, the traffic controller effectively manages unauthorized applications and their associated traffic in a corporate environment.Type: GrantFiled: June 27, 2011Date of Patent: July 24, 2012Assignee: Avaya Inc.Inventors: Wenfeng Chen, Michel Ouellette, Delfin Montuno, Kent Felske
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Publication number: 20110320596Abstract: A traffic controller is provided which integrates black-box tests of unauthorized applications to extract application characteristics from associated Internet traffic, exploits the networking information learned by host clients, actively scans and controls hosts on the corporate network, and dynamically configures a corporate firewall to block traffic to and from critical application network elements. As a result, the traffic controller effectively manages unauthorized applications and their associated traffic in a corporate environment.Type: ApplicationFiled: June 27, 2011Publication date: December 29, 2011Inventors: Wenfeng Chen, Michel Ouellette, Delfin Montuno, Kent Felske
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Patent number: 7996895Abstract: A traffic controller is provided which integrates black-box tests of unauthorized applications to extract application characteristics from associated Internet traffic, exploits the networking information learned by host clients, actively scans and controls hosts on the corporate network, and dynamically configures a corporate firewall to block traffic to and from critical application network elements. As a result, the traffic controller effectively manages unauthorized applications and their associated traffic in a corporate environment.Type: GrantFiled: March 27, 2006Date of Patent: August 9, 2011Assignee: Avaya Inc.Inventors: Wenfeng Chen, Michel Ouellette, Delfin Montuno, Kent Felske
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Patent number: 7684333Abstract: A method and system for allocating bandwidth of a wireless channel to different types of traffic includes partitioning the bandwidth of the wireless channel into a plurality of contention periods. Traffic flows are associated with access categories, and one or more of the access categories are assigned to each contention period. During at least one of the contention periods, traffic flows associated with a proper subset of the access categories contend for access to the wireless channel.Type: GrantFiled: July 28, 2005Date of Patent: March 23, 2010Assignee: AVAYA, Inc.Inventors: Abel Clement Dasylva, Zhonghui Yao, Delfin Montuno, Michel Ouellette, James Aweya, Wenfeng Chen, Kent Felske
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Publication number: 20070226781Abstract: A traffic controller is provided which integrates black-box tests of unauthorized applications to extract application characteristics from associated Internet traffic, exploits the networking information learned by host clients, actively scans and controls hosts on the corporate network, and dynamically configures a corporate firewall to block traffic to and from critical application network elements. As a result, the traffic controller effectively manages unauthorized applications and their associated traffic in a corporate environment.Type: ApplicationFiled: March 27, 2006Publication date: September 27, 2007Inventors: Wenfeng Chen, Michel Quellette, Delfin Montuno, Kent Fetske
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Patent number: 7173937Abstract: A technique for address registration and resolution is disclosed. In one embodiment, the technique is realized by an address registration and resolution service that is applicable to in-band in-fiber, out-of-band in-fiber and out-of-band out-of-fiber O-UNI signaling configurations. Through this address registration and resolution scheme, an optical service subscriber or optical access service provider can register various client-layer addresses (i.e., establish an association between the client addresses and the optical network points of attachment for the network intelligence.) An intelligent optical routing protocol will propagate this information all over the network and use this information to locate a corresponding optical client device and the optical network point of attachment. The optical network signaling can then perform the network internal signaling for on-demand optical service provisioning.Type: GrantFiled: March 27, 2002Date of Patent: February 6, 2007Assignee: Nortel Networks LimitedInventors: Wenfeng Chen, Borong Zhou, Guo Qiang Wang, Randy Kuang