Patents by Inventor Caiyou Li
Caiyou Li 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: 10286581Abstract: A centrifugal hollow basic body forming method includes forming a parison that includes a superficial frozen layer and an inner uncured layer, by filling a model with material; and centrifuging to form the hollow basic body by causing the inner uncured layer to separate from the parison under centrifugal force generated by a centrifugation device and provide a separated uncured material. A centrifugal hollow basic body forming device includes a molding device structured to form a parison that includes a superficial frozen layer and an inner uncured layer; and a centrifugation device that generates a centrifugal force effective to separate the inner uncured layer from the superficial frozen layer as separated uncured material and form the hollow basic body, and that is provided with an overflow chamber for collecting the separated uncured material.Type: GrantFiled: November 28, 2016Date of Patent: May 14, 2019Inventor: Caiyou Li
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Patent number: 9822516Abstract: An explosion-proof method of an explosion-proof pressure type toilet tank, includes dividing the toilet tank into a closed air container to store air and a closed water container to store water. The water container is disposed with an inlet and an outlet. The air container is connected to the water container by a channel. The air container compressive ultimate strength is larger than that of the water container. When the tank is filled with water, the air in the water container enters the air container through the channel. When the tank pressure is too great, the water container bursts, steadily releasing the air compression of the air container through the channel to prevent the compression air from quickly blowing out.Type: GrantFiled: December 11, 2013Date of Patent: November 21, 2017Inventor: Caiyou Li
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Publication number: 20170157808Abstract: The present invention discloses a centrifugal hollow forming method and device, the centrifugal hollow forming device takes use of molding device and centrifugation device, firstly using the molding device to make the material form into a parison which comprises a superficial frozen layer and an inner uncured layer, then using the centrifugation device to generate centrifugal force for letting the uncured layer separate from the parison so that to a hollow basic body is formed, the advantages of using the centrifugal hollow forming device are that with high quality of the outer surface of the hollow product and even wall thickness, with strong controllability on thickness and high dimensional stability, cyclic utilization of the collection of overflow material, and with low manufacture cost and wide application range.Type: ApplicationFiled: November 28, 2016Publication date: June 8, 2017Inventor: Caiyou LI
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Patent number: 9115519Abstract: A damping mechanism has a housing body defining a cavity with a central axis, a threaded section disposed with female threads revolving about the central axis and a smooth section; a rotating shaft inserted into the cavity; and a piston, wherein the piston comprises a threaded section disposed with male threads revolving about the central axis and a piston head. The threaded section of the cavity and the threaded section of the piston constitute a screw-on fit relationship between the female and male threads. The piston head is clearance-fitted or seal-fitted with the smooth section of the cavity. An axial hole section of the piston is clearance-fitted or seal-fitted with the rotating shaft. The rotating shaft is provided with a radially outwardly-opening and axially-extending oiling slot on the sliding path of the piston head while the depth and/or width of the oiling slot changes gradually.Type: GrantFiled: January 13, 2012Date of Patent: August 25, 2015Inventors: Caiyou Li, Feiyong Li
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Publication number: 20140208497Abstract: An explosion-proof method of an explosion-proof pressure type toilet tank, includes dividing the toilet tank into a closed air container to store air and a closed water container to store water. The water container is disposed with an inlet and an outlet. The air container is connected to the water container by a channel. The air container compressive ultimate strength is larger than that of the water container. When the tank is filled with water, the air in the water container enters the air container through the channel. When the tank pressure is too great, the water container bursts, steadily releasing the air compression of the air container through the channel to prevent the compression air from quickly blowing out.Type: ApplicationFiled: December 11, 2013Publication date: July 31, 2014Inventor: Caiyou LI
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Patent number: 8689368Abstract: A flushing mechanism includes a housing, an upper cover on the housing, a sleeve, a first piston, a first piston sealed module, a first piston loading spring, a second piston and a second piston loading spring. Wherein a pressure-relief and/or ejection-proof part is provided in the housing, the second piston sealed module are respectively provided surround the periphery of the bottom end and the central hole of the second piston. The bottom end of the second piston, the second piston sealed module and the lower end of the housing define an exterior lower cavity and an interior lower cavity used for cooperating with the second piston loading spring in course of drainage, sequentially the second piston are moved upward and the outlet is opened. A toilet bowl employing said flushing mechanism can reduce the flushing water consumption.Type: GrantFiled: August 30, 2012Date of Patent: April 8, 2014Inventors: Feiyu Li, Caiyou Li
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Publication number: 20130276268Abstract: A damping mechanism has a housing body defining a cavity with a central axis, a threaded section disposed with female threads revolving about the central axis and a smooth section; a rotating shaft inserted into the cavity; and a piston, wherein the piston comprises a threaded section disposed with male threads revolving about the central axis and a piston head. The threaded section of the cavity and the threaded section of the piston constitute a screw-on fit relationship between the female and male threads. The piston head is clearance-fitted or seal-fitted with the smooth section of the cavity. An axial hole section of the piston is clearance-fitted or seal-fitted with the rotating shaft. The rotating shaft is provided with a radially outwardly-opening and axially-extending oiling slot on the sliding path of the piston head while the depth and/or width of the oiling slot changes gradually.Type: ApplicationFiled: January 13, 2012Publication date: October 24, 2013Applicant: WDI (Zhangzhou) Plumbing Co., Ltd.Inventors: Caiyou Li, Feiyong Li
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Publication number: 20130061956Abstract: A flushing mechanism includes a housing, an upper cover on the housing, a sleeve, a first piston, a first piston sealed module, a first piston loading spring, a second piston and a second piston loading spring. Wherein a pressure-relief and/or ejection-proof part is provided in the housing, the second piston sealed module are respectively provided surround the periphery of the bottom end and the central hole of the second piston. The bottom end of the second piston, the second piston sealed module and the lower end of the housing define an exterior lower cavity and an interior lower cavity used for cooperating with the second piston loading spring in curse of drainage, sequentially the second piston are moved upward and the outlet is opened. A toilet bowl employing said flushing mechanism can reduce the flushing water consumption.Type: ApplicationFiled: August 30, 2012Publication date: March 14, 2013Inventors: Feiyu LI, Caiyou Li
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Patent number: 8332970Abstract: A flushing mechanism (100) includes a housing (1), an upper cover (6) on the housing (1), a sleeve (3), a first piston (4), a first piston sealed module (4-3), a first piston loading spring (5), a second piston (8) and a second piston loading spring (9). Wherein a pressure-relief and/or ejection-proof part is provided in the housing (1), the second piston sealed module (8-3, 8-4) are respectively provided surround the periphery of the bottom end and the central hole of the second piston (8). The bottom end of the second piston (8), the second piston sealed module (8-3, 8-4) and the lower end of the housing (1) define an exterior lower cavity (8-5) and an interior lower cavity (8-6) used for cooperating with the second piston loading spring (9) in course of drainage, sequentially the second piston (8) is moved upward and the outlet is opened. A toilet bowl employing the flushing mechanism can reduce the flushing water consumption.Type: GrantFiled: May 25, 2010Date of Patent: December 18, 2012Inventors: Feiyu Li, Caiyou Li
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Publication number: 20100230625Abstract: A flushing mechanism (100) includes a housing (1), an upper cover (6) on the housing (1), a sleeve (3), a first piston (4), a first piston sealed module (4-3), a first piston loading spring (5), a second piston (8) and a second piston loading spring (9). Wherein a pressure-relief and/or ejection-proof part is provided in the housing (1), the second piston sealed module (8-3, 8-4) are respectively provided surround the periphery of the bottom end and the central hole of the second piston (8). The bottom end of the second piston (8), the second piston sealed module (8-3, 8-4) and the lower end of the housing (1) define an exterior lower cavity (8-5) and an interior lower cavity (8-6) used for cooperating with the second piston loading spring (9) in course of drainage, sequentially the second piston (8) is moved upward and the outlet is opened. A toilet bowl employing the flushing mechanism can reduce the flushing water consumption.Type: ApplicationFiled: May 25, 2010Publication date: September 16, 2010Inventors: Feiyu Li, Caiyou Li