Patents by Inventor Chia-Po Chang
Chia-Po Chang 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: 20240105400Abstract: A computing device can include a housing defining an opening, a base layer, and a button mechanism positioned in the opening. The button mechanism can include a keycap movable relative to the base layer between an undepressed state and a depressed state, and a dome contacting the keycap, the dome including a first surface and a second surface, opposite the first surface. In the undepressed state, the first surface can be concave and the second surface can be convex. In a partially depressed state, a first portion of the first surface can be convex and a second portion of the first surface can be concave. In the depressed state, the first surface can be convex and the second surface can be concave.Type: ApplicationFiled: September 22, 2022Publication date: March 28, 2024Inventors: Yu-Po Chang, Chia Chi Wu
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Publication number: 20220381352Abstract: A water control valve may include a valve shell, a valve base, a shunt valve, and a temperature control unit. The valve shell has a control base, a driving valve piece, and a fixed valve piece, and a valve stem upwardly protrudes from a center of the control base out of the valve shell. The valve base comprises an upper base and a lower base, which are configured to fit together, and the upper base has an inner space to accommodate and install the temperature control unit therein. The temperature control unit has a cap, a supporting sleeve, a temperature sensor, a sealing sleeve, and a spring.Type: ApplicationFiled: June 1, 2021Publication date: December 1, 2022Applicant: HAIN YO ENTERPRISES CO., LTD.Inventor: CHIA-PO CHANG
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Patent number: 11073229Abstract: A water valve may include a valve shell, and a rotating base is installed in the valve shell. A lower end of the rotating base is sequentially connected to a driving valve piece and a fixed valve piece, and the driving valve piece and the fixed valve piece are installed in the valve shell. A bottom portion of the driving valve piece comprises a concave portion to form a mixing chamber, and the mixing chamber has a first mixing space and a second mixing space, and the diameter of the first mixing space is larger than the second mixing space so as to increase the coverage of the mixing chamber. Each of two sides of the second mixing space comprises a pressure relief slot.Type: GrantFiled: July 2, 2019Date of Patent: July 27, 2021Inventor: Chia-Po Chang
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Patent number: 10648162Abstract: A precision ceramics control balance valve includes a valve housing, a rotary base mounted in the valve housing, a valve lever mounted on the rotary base and protruding upward from the valve housing, a movable valve plate mounted in the valve housing and located under the rotary base, a fixed valve plate mounted in the valve housing and located under the movable valve plate, a valve seat mounted on a lower end of the valve housing to stop the fixed valve plate, the movable valve plate and the rotary base, a temperature limiting device mounted in the valve seat, a pedestal connected with the valve seat, and a balance unit mounted in the pedestal.Type: GrantFiled: December 15, 2017Date of Patent: May 12, 2020Assignee: HAIN YO ENTERPRISES CO., LTD.Inventor: Chia-Po Chang
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Patent number: 10648576Abstract: A water valve may comprise a valve shell, and a rotating base is installed in the valve shell. A lower end of the rotating base is sequentially connected to a driving valve piece and a fixed valve piece which are installed in the valve shell. A center of a top portion of the rotating base comprises a valve rod upwardly protruding out of the valve shell. The rotating base is configured to engage with the driving valve piece, and through operating the valve rod, the rotating base driven by the valve rod is adapted to drive and have synchronous rotation with the driving valve piece so as to change the relative positions between the driving valve piece and the fixed valve piece and then to control on/off operation of a faucet, ratio of hot and cold water and the amount of water flow.Type: GrantFiled: October 28, 2018Date of Patent: May 12, 2020Assignee: HAIN YO ENTERPRISES CO., LTD.Inventor: Chia-Po Chang
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Publication number: 20200132220Abstract: A water valve may include a valve shell, and a rotating base is installed in the valve shell. A lower end of the rotating base is sequentially connected to a driving valve piece and a fixed valve piece, and the driving valve piece and the fixed valve piece are installed in the valve shell. A bottom portion of the driving valve piece comprises a concave portion to form a mixing chamber, and the mixing chamber has a first mixing space and a second mixing space, and the diameter of the first mixing space is larger than the second mixing space so as to increase the coverage of the mixing chamber. Each of two sides of the second mixing space comprises a pressure relief slot.Type: ApplicationFiled: July 2, 2019Publication date: April 30, 2020Applicant: HAIN YO ENTERPRISES CO., LTD.Inventor: CHIA-PO CHANG
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Publication number: 20200132200Abstract: A water valve may comprise a valve shell, and a rotating base is installed in the valve shell. A lower end of the rotating base is sequentially connected to a driving valve piece and a fixed valve piece which are installed in the valve shell. A center of a top portion of the rotating base comprises a valve rod upwardly protruding out of the valve shell. The rotating base is configured to engage with the driving valve piece, and through operating the valve rod, the rotating base driven by the valve rod is adapted to drive and have synchronous rotation with the driving valve piece so as to change the relative positions between the driving valve piece and the fixed valve piece and then to control on/off operation of a faucet, ratio of hot and cold water and the amount of water flow.Type: ApplicationFiled: October 28, 2018Publication date: April 30, 2020Applicant: HAIN YO ENTERPRISES CO., LTD.Inventor: CHIA-PO CHANG
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Patent number: 10570591Abstract: A precision ceramics control valve includes a valve housing, a rotary base mounted in the valve housing, a valve lever mounted on the rotary base and protruding upward from the valve housing, a movable valve plate mounted in the valve housing and located under the rotary base, a fixed valve plate mounted in the valve housing and located under the movable valve plate, a valve seat mounted on a lower end of the valve housing to stop the fixed valve plate, the movable valve plate and the rotary base, and a temperature limiting device mounted in the valve seat.Type: GrantFiled: December 15, 2017Date of Patent: February 25, 2020Assignee: Hain Yo Enterprises Co., Ltd.Inventor: Chia-Po Chang
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Patent number: 10459463Abstract: A water control valve may comprise a valve shell, a sliding block, an operating valve piece, a fixing valve piece, a valve base and a check valve. The sliding block, the operating valve piece and the fixing valve piece are stacked sequentially and positioned inside the valve shell. The sliding block has a valve rod which is formed at an upper portion thereof and sticking out of the valve shell, and a bottom portion of the sliding block is engaged with the operating valve piece such that, through operating the valve rod, the sliding block is configured to drive and have movements with the operating valve piece concurrently to perform different aligning patterns between the operating valve piece and the fixing valve piece, thereby enabling the water control valve to control on/off operation of a faucet, the amount of water flow and the mixing ratio of hot/cold water.Type: GrantFiled: March 23, 2017Date of Patent: October 29, 2019Assignee: HAIN YO ENTERPRISES CO., LTD.Inventor: Chia-Po Chang
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Publication number: 20190186112Abstract: A precision ceramics control valve includes a valve housing, a rotary base mounted in the valve housing, a valve lever mounted on the rotary base and protruding upward from the valve housing, a movable valve plate mounted in the valve housing and located under the rotary base, a fixed valve plate mounted in the valve housing and located under the movable valve plate, a valve seat mounted on a lower end of the valve housing to stop the fixed valve plate, the movable valve plate and the rotary base, and a temperature limiting device mounted in the valve seat.Type: ApplicationFiled: December 15, 2017Publication date: June 20, 2019Inventor: Chia-Po Chang
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Publication number: 20190186113Abstract: A precision ceramics control balance valve includes a valve housing, a rotary base mounted in the valve housing, a valve lever mounted on the rotary base and protruding upward from the valve housing, a movable valve plate mounted in the valve housing and located under the rotary base, a fixed valve plate mounted in the valve housing and located under the movable valve plate, a valve seat mounted on a lower end of the valve housing to stop the fixed valve plate, the movable valve plate and the rotary base, a temperature limiting device mounted in the valve seat, a pedestal connected with the valve seat, and a balance unit mounted in the pedestal.Type: ApplicationFiled: December 15, 2017Publication date: June 20, 2019Inventor: Chia-Po Chang
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Patent number: 10167964Abstract: A precision ceramics control balance valve includes a valve housing, a rotary base mounted in the valve housing, a slide mounted in the valve housing and located under the rotary base, a valve lever pivotally mounted in the rotary base and having an upper end protruding from the valve housing and a second end provided with a drive portion connected with the slide, a movable valve plate mounted in the valve housing and located under the slide, a fixed valve plate mounted in the valve housing and located under the movable valve plate, a valve seat mounted on the valve housing to stop the fixed valve plate, the movable valve plate, the slide and the rotary base, a temperature limiting device mounted in the valve seat, a pedestal connected with the valve seat, and a balance unit mounted in the pedestal.Type: GrantFiled: December 12, 2017Date of Patent: January 1, 2019Assignee: Hain Yo Enterprises Co., Ltd.Inventor: Chia-Po Chang
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Patent number: 10167963Abstract: A precision ceramics control valve includes a valve housing, a rotary base mounted in the valve housing, a slide mounted in the valve housing and located under the rotary base, a valve lever pivotally mounted in the rotary base and having an upper end protruding from the valve housing and a second end provided with a drive portion connected with the slide, a movable valve plate mounted in the valve housing and located under the slide, a fixed valve plate mounted in the valve housing and located under the movable valve plate, a valve seat mounted on a lower end of the valve housing to stop the fixed valve plate, the movable valve plate, the slide and the rotary base, and a temperature limiting device mounted in the valve seat.Type: GrantFiled: December 12, 2017Date of Patent: January 1, 2019Assignee: Hain Yo Enterprises Co., Ltd.Inventor: Chia-Po Chang
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Publication number: 20180275695Abstract: A water control valve may comprise a valve shell, a sliding block, an operating valve piece, a fixing valve piece, a valve base and a check valve. The sliding block, the operating valve piece and the fixing valve piece are stacked sequentially and positioned inside the valve shell. The sliding block has a valve rod which is formed at an upper portion thereof and sticking out of the valve shell, and a bottom portion of the sliding block is engaged with the operating valve piece such that, through operating the valve rod, the sliding block is configured to drive and have movements with the operating valve piece concurrently to perform different aligning patterns between the operating valve piece and the fixing valve piece, thereby enabling the water control valve to control on/off operation of a faucet, the amount of water flow and the mixing ratio of hot/cold water.Type: ApplicationFiled: March 23, 2017Publication date: September 27, 2018Applicant: HAIN YO ENTERPRISES CO., LTD.Inventor: CHIA-PO CHANG
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Patent number: 10054235Abstract: A control valve for faucet may comprise a control valve, a balancing valve, a water outlet unit, and a faucet body. A lower end of the control valve has a water inlet chamber and a water outlet chamber, and the balancing valve secured inside the water inlet chamber comprises a first shell and a second shell which are formed symmetrically and are configured to fit together to secure a pressure regulator therein. The water outlet unit secured inside the water outlet chamber has a first through hole, and a lower end thereof comprises a lower sealing ring which covers around a lower edge of the water outlet chamber. When control valve connected to the faucet body, the lower sealing ring only will be pressed downwardly instead of being twisted thereby reducing the possibility of damage or deformation and improving the strength of structure and the leakproof effect.Type: GrantFiled: June 2, 2016Date of Patent: August 21, 2018Assignee: Hain Yo Enterprises Co. Ltd.Inventor: Chia-Po Chang
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Publication number: 20170350518Abstract: A control valve for faucet may comprise a control valve, a balancing valve, a water outlet unit, and a faucet body. A lower end of the control valve has a water inlet chamber and a water outlet chamber, and the balancing valve secured inside the water inlet chamber comprises a first shell and a second shell which are formed symmetrically and are configured to fit together to secure a pressure regulator therein. The water outlet unit secured inside the water outlet chamber has a first through hole, and a lower end thereof comprises a lower sealing ring which covers around a lower edge of the water outlet chamber. When control valve connected to the faucet body, the lower sealing ring only will be pressed downwardly instead of being twisted thereby reducing the possibility of damage or deformation and improving the strength of structure and the leakproof effect.Type: ApplicationFiled: June 2, 2016Publication date: December 7, 2017Applicant: HAIN YO ENTERPRISES CO., LTD.Inventor: Chia-Po Chang
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Patent number: 9772631Abstract: A water control valve may comprise a balancing valve installed therein, and the balancing valve has two corresponding housing members which are configured to connect to each other to secure a locating tube and a movable valve core therein. Each of the housing members has a water inlet, and two non-return devices are respectively installed in the two water inlets. With the non-return device and the balancing valve, the water control valve is configured to balance the water pressure between cold and hot water inflows and prevent backflow simultaneously, thus ensuring the water quality.Type: GrantFiled: November 8, 2016Date of Patent: September 26, 2017Assignee: Hain Yo Enterprises Co. Ltd.Inventor: Chia-Po Chang
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Patent number: 9739039Abstract: A faucet for switching between multiple water sources may include a faucet body, a ceramic control valve, a filtered water source, and a water outlet tube. A water inlet chamber and a water outlet chamber are formed at a bottom portion and a top portion of the faucet body respectively. A valve channel formed at a lateral side of the faucet body is configured to provide loading for the ceramic control valve. A water outlet tube comprising an inner tube and an outer tube is formed inside of the water outlet chamber. By using the long grooving-shaped water channel penetrating the annular wall located at a cross section of the valve channel and the water outlet chamber, the faucet is able to provide plentiful multiple water sources from the outer tube of the water outlet tube.Type: GrantFiled: November 26, 2015Date of Patent: August 22, 2017Assignee: Hain Yo Enterprises Co. Ltd.Inventor: Chia-Po Chang
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Patent number: 9739384Abstract: A ceramic control valve may include a control shaft bolt, an upper ceramic piece, and a lower ceramic piece secured in a valve shell, and a valve base formed on a bottom of the ceramic control valve connects with the valve shell to prevent the components from falling out of valve shell. The ceramic control valve of the faucet can control the tap water and the filtered water, and also provides hot water, cold water, or different mixing ratios of hot water and cold water without installing another ceramic control valve. Therefore, the design of the present invention simplifies the complexity in structure, and it is convenient for a user to control the filtered water and the tap water with the different mixing ratios of hot water and cold water by a single ceramic control valve.Type: GrantFiled: October 23, 2015Date of Patent: August 22, 2017Assignee: Hain Yo Enterprises Co. Ltd.Inventor: Chia-Po Chang
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Patent number: 9719602Abstract: A ceramic control valve may include a control valve bolt, an upper ceramic piece, and a lower ceramic piece secured in a valve shell, and a valve base formed on a bottom of the ceramic control valve connects with the valve shell to prevent the components from falling out of valve shell. The ceramic control valve of the faucet can control the tap water and the filtered water, and also provides hot water, cold water, or different mixing ratios of hot water and cold water without installing another ceramic control valve. Therefore, the design of the present invention simplifies the complexity in structure, and it is convenient for a user to control the filtered water and the tap water with the different mixing ratios of hot water and cold water by a single ceramic control valve.Type: GrantFiled: October 14, 2015Date of Patent: August 1, 2017Assignee: HAIN YO ENTERPRISES CO. LTD.Inventor: Chia-Po Chang