Patents by Inventor Yi-Chiu CHOU
Yi-Chiu CHOU 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: 11994178Abstract: A universal joint includes a socket member and a driving member. The socket member includes a receiving hole, and an inner periphery of the receiving hole is formed with first evading portions and first abutting portions staggered with each other to cause the first abutting portions not connected to each other. Each first abutting portion is provided with a first abutting face, a second abutting face, and an adjacent edge formed between the first abutting face and the second abutting face. One side of the adjacent edge forms an adjacent edge angle being greater than 177 degrees and less than 180 degrees. The driving member includes a rounded base arranged in the receiving hole and a driving column opposite to the rounded base.Type: GrantFiled: August 12, 2021Date of Patent: May 28, 2024Assignee: RE-DAI PRECISION TOOLS CO., LTD.Inventor: Yi-Chiu Chou
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Publication number: 20220097212Abstract: A reversible ratchet wrench includes a body, a ratchet wheel member rotatably disposed in the body, a pawl movably disposed in the body and engaged with the ratchet wheel member, a switch member pivotally disposed in the body about a pivotal axis, and a pushing assembly received in the switch member and abutting against the pawl. The switch member defines a front side and a rear side. The front side is provided with a bore extending in a radial direction of the pivotal axis to receive the pushing assembly. The switch member is integrally formed with a reinforcing portion protruding outwardly from the front side in the radial direction of the pivotal axis.Type: ApplicationFiled: May 20, 2021Publication date: March 31, 2022Inventor: Yi-Chiu CHOU
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Publication number: 20220082133Abstract: A universal joint includes a socket member and a driving member. The socket member includes a receiving hole, and an inner periphery of the receiving hole is formed with first evading portions and first abutting portions staggered with each other to cause the first abutting portions not connected to each other. Each first abutting portion is provided with a first abutting face, a second abutting face, and an adjacent edge formed between the first abutting face and the second abutting face. One side of the adjacent edge forms an adjacent edge angle being greater than 177 degrees and less than 180 degrees. The driving member includes a rounded base arranged in the receiving hole and a driving column opposite to the rounded base.Type: ApplicationFiled: August 12, 2021Publication date: March 17, 2022Inventor: Yi-Chiu CHOU
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Patent number: 10421175Abstract: An anti-theft rack includes a rack frame supporting at least one retaining device. The at least one retaining device is configured to retain a socket tool and includes a seat mounted on the rack frame, a sliding member slidably engaged with the seat, and a retaining member disposed between the seat and the sliding member. The seat includes a shaft portion and the sliding member is movably mounted on the shaft portion. The shaft portion includes a first recessed portion and a second recessed portion of different depths adapted to receive the retaining member. The retaining member is selectively disposed in the first and second recessed portions in response to movement of the sliding member. Further, a position limiter is releasably disposed between two terminal positions of a moving path of the sliding member and configured to prevent the sliding member from the first position to the second position.Type: GrantFiled: May 17, 2018Date of Patent: September 24, 2019Assignee: Re-Dai Precision Tools Co., Ltd.Inventor: Yi-Chiu Chou
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Publication number: 20190091842Abstract: An anti-theft rack includes a rack frame supporting at least one retaining device. The at least one retaining device is configured to retain a socket tool and includes a seat mounted on the rack frame, a sliding member slidably engaged with the seat, and a retaining member disposed between the seat and the sliding member. The seat includes a shaft portion and the sliding member is movably mounted on the shaft portion. The shaft portion includes a first recessed portion and a second recessed portion of different depths adapted to receive the retaining member. The retaining member is selectively disposed in the first and second recessed portions in response to movement of the sliding member. Further, a position limiter is releasably disposed between two terminal positions of a moving path of the sliding member and configured to prevent the sliding member from the first position to the second position.Type: ApplicationFiled: May 17, 2018Publication date: March 28, 2019Inventor: Yi-Chiu Chou
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Publication number: 20180154504Abstract: A one-way torque adjustable screwdriver comprises a body and a polygonal elastic member disposed inside the body. A torque transmission device and a torque adjusting device are mounted on two ends of the polygonal elastic member, respectively. A drive rod is connected to the torque transmission device. Driving the torque adjusting device to move can change a length of the polygonal elastic member, thus change an acting force of the polygonal elastic member exerted on the torque transmission device, change an output torque provided by the drive rod, and thus achieve the effect of easy operation.Type: ApplicationFiled: April 11, 2017Publication date: June 7, 2018Inventor: Yi Chiu CHOU
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Publication number: 20150367498Abstract: A multi-function tool with a fixing function comprises a handle body having a receiving slot; a ratchet handle being a combination of a rod body and a work head, the rod body being pivotally mounted on the receiving slot, and a surface of one end of the rod body having a toothed portion; a mounting, hole formed on an end portion of the handle body and abutting upon the receiving slot; a ball hole formed on a bottom surface of the mounting hole and communicating with the receiving slot; and a positioning assembly constituted by a push block, a spring and a steel ball, the push block surface having a positioning cavity and a release cavity, the push block being connected to the spring and disposed in the mounting hole, the steel ball being disposed in the ball hole. The push block is moved so that the steel ball meshes with the toothed portion of the rod body and the positioning cavity, and the ratchet handle is positioned.Type: ApplicationFiled: December 1, 2014Publication date: December 24, 2015Inventor: YI CHIU CHOU
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Publication number: 20150136763Abstract: A tool box with a quick release structure includes a first box body having one side integrally formed jointly with a first hook portion and a first shaft; and a second box body having one side integrally formed jointly with a second hook portion and a second shaft. The first hook portion hooks the second shaft, and the second hook portion hooks the first shaft. Thus, the first box body and the second box body can be combined together and form openable and closeable states. Because the first box body, the first hook portion and the first shaft can be integrally formed as a structure form the same as the structure form constituted by the second box body, the second hook portion and the second shaft, which can also be integrally formed, the object and effect of simplifying the structure can be achieved.Type: ApplicationFiled: March 25, 2014Publication date: May 21, 2015Applicant: RE-DAI PRECISION TOOLS CO., LTD.Inventor: Yi Chiu CHOU
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Patent number: 8869658Abstract: In a multi-function tool structure, a body and a work rod are pivotally connected together and can form a folded and retracted state. Moreover, an elastically movable press button is disposed on the body and can link up a positioning pin movably inserted into the work rod. Thus, pressing the press button can release a lock between the work rod and the positioning pin so that the work rod is swingable, while releasing the press button can lock the positioning pin and the work rod together again. Thus, the work rod and the body can be folded and retracted to facilitate the storage and carrying. After the work rod is developed, it can form multiple included angles with respect to the body so that the requirements of different operation angles can be satisfied.Type: GrantFiled: May 25, 2012Date of Patent: October 28, 2014Assignee: Re-Dai Precision Tools Co., Ltd.Inventor: Yi-Chiu Chou
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Publication number: 20120304830Abstract: In a multi-function tool structure, a body and a work rod are pivotally connected together and can form a folded and retracted state. Moreover, an elastically movable press button is disposed on the body and can link up a positioning pin movably inserted into the work rod. Thus, pressing the press button can release a lock between the work rod and the positioning pin so that the work rod is swingable, while releasing the press button can lock the positioning pin and the work rod together again. Thus, the work rod and the body can be folded and retracted to facilitate the storage and carrying. After the work rod is developed, it can form multiple included angles with respect to the body so that the requirements of different operation angles can be satisfied.Type: ApplicationFiled: May 25, 2012Publication date: December 6, 2012Inventor: Yi-Chiu CHOU
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Patent number: D979386Type: GrantFiled: April 27, 2021Date of Patent: February 28, 2023Assignee: RE-DAI PRECISION TOOLS CO., LTD.Inventor: Yi-Chiu Chou
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Patent number: D1007985Type: GrantFiled: April 13, 2022Date of Patent: December 19, 2023Assignee: RE-DAI PRECISION TOOLS CO., LTD.Inventor: Yi-Chiu Chou