Patents by Inventor Ping Hsien Tsai
Ping Hsien Tsai 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: 20240286357Abstract: Methods and systems for manufacturing a part with a random decorative pattern are described. In some embodiments, a part may be manufactured by obtaining a three-dimensional model of the part, generating a random decorative patter using a random pattern generator, and then modifying the three-dimensional model based on the random decorative pattern. A build plan may be then generated for use by a manufacturing system to manufacturing the part using any appropriate type of manufacturing process.Type: ApplicationFiled: May 12, 2023Publication date: August 29, 2024Applicant: ASSA ABLOY Residential Group, Inc.Inventors: Ping Hsien Tsai, William Carl Zhang
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Publication number: 20150015003Abstract: Locksets primarily intended for use in interior residential doors and that have a concealed fastener mechanism positioned on one side of the lockset, the mechanism including connecting a first handle connected to a second handle through a spindle with the concealed fastener mechanism comprising a generally cylindrical housing including a torsion spring, a timing plate and a cover plate, the housing including an internally threaded central aperture, the timing plate including at least one tab adapted to cooperate with said torsion spring to return the handle to its at-rest position after rotation.Type: ApplicationFiled: July 11, 2013Publication date: January 15, 2015Inventors: PING HSIEN TSAI, Birk Cliff Sorensen
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Publication number: 20140159392Abstract: Locksets primarily intended for use in interior residential doors and that have a concealed fastener mechanism positioned on one side of the lockset, the mechanism including connecting a first handle connected to a second handle through a spindle with the concealed fastener mechanism comprising a generally cylindrical housing including a torsion spring, a timing plate and a cover plate, the housing including an internally threaded central aperture, the timing plate including at least one tab adapted to cooperate with said torsion spring to return the handle to its at-rest position after rotation, a spindle expansion and stabilizing screw adapted to eliminate any gap between the spindle and the timing plate and a spindle set screw that, when engaged eliminates any gap between the spindle and its handle to thereby eliminate the “wobble” that otherwise could be in the lockset.Type: ApplicationFiled: February 18, 2014Publication date: June 12, 2014Applicant: EMTEK PRODUCTS, INC.Inventors: Ping Hsien Tsai, Birk Cliff Sorensen, Louis Romo Martinez, JR.
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Patent number: 8176761Abstract: A keypad lockset adapted for deadbolt as well as lever locks, and having as a first embodiment an exterior gear train, an interior gear train, and an electronically controlled clutch for coupling the gear trains when engaged and for uncoupling the gear trains when the clutch is disengaged, so that when the clutch is engaged rotation of an external thumb turn will permit the door latch to be withdrawn and thus to permit opening of the door, and a mechanical override mechanism that can be operated in case of electrical failure, and in which clutch mechanism and the override mechanism both operate through the single, standard 2? inch door preparation hole, or alternatively as a second embodiment, a keypad lockset in which two four-bar mechanical linkages are used in place of gears as means to actuate the clutch, and alternatively to provide for a pass-through override function.Type: GrantFiled: November 11, 2011Date of Patent: May 15, 2012Assignee: Emtek Products, Inc.Inventors: Birk Cliff Sorensen, Ping Hsien Tsai, Wai Pang Wong, John Edward Walsh, Louls Romo Martinez
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Patent number: 8141400Abstract: A keypad lockset adapted for deadbolt as well as lever locks, and having as a first embodiment an exterior gear train, an interior gear train, and an electronically controlled clutch for coupling the gear trains when engaged and for uncoupling the gear trains when the clutch is disengaged, so that when the clutch is engaged rotation of an external thumb turn will permit the door latch to be withdrawn and thus to permit opening of the door, and a mechanical override mechanism that can be operated in case of electrical failure, and in which clutch mechanism and the override mechanism both operate through the single, standard 2 and ? inch door preparation hole, or alternatively as a second embodiment, a keypad lockset in which two four-bar mechanical linkages are used in place of gears as means to actuate the clutch, and alternatively to provide for a pass-through override function.Type: GrantFiled: March 23, 2010Date of Patent: March 27, 2012Assignee: Emtek Products, Inc.Inventors: Birk Cliff Sorensen, Ping Hsien Tsai, Wai Pang Wong, John Edward Walsh, Louis Romo Martinez
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Publication number: 20120055213Abstract: A keypad lockset adapted for deadbolt as well as lever locks, and having as a first embodiment an exterior gear train, an interior gear train, and an electronically controlled clutch for coupling the gear trains when engaged and for uncoupling the gear trains when the clutch is disengaged, so that when the clutch is engaged rotation of an external thumb turn will permit the door latch to be withdrawn and thus to permit opening of the door, and a mechanical override mechanism that can be operated in case of electrical failure, and in which clutch mechanism and the override mechanism both operate through the single, standard 2 and ? inch door preparation hole, or alternatively as a second embodiment, a keypad lockset in which two four-bar mechanical linkages are used in place of gears as means to actuate the clutch, and alternatively to provide for a pass-through override function.Type: ApplicationFiled: November 11, 2011Publication date: March 8, 2012Inventors: BIRK Cliff SORENSEN, Ping Hsien Tsai, Wai Pang Wong, John Edward Walsh, Louls Romo Martinez
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Publication number: 20100257906Abstract: A keypad lockset adapted for deadbolt as well as lever locks, and having as a first embodiment an exterior gear train, an interior gear train, and an electronically controlled clutch for coupling the gear trains when engaged and for uncoupling the gear trains when the clutch is disengaged, so that when the clutch is engaged rotation of an external thumb turn will permit the door latch to be withdrawn and thus to permit opening of the door, and a mechanical override mechanism that can be operated in case of electrical failure, and in which clutch mechanism and the override mechanism both operate through the single, standard 2? inch door preparation hole, or alternatively as a second embodiment, a keypad lockset in which two four-bar mechanical linkages are used in place of gears as means to actuate the clutch, and alternatively to provide for a pass-through override function.Type: ApplicationFiled: March 23, 2010Publication date: October 14, 2010Inventors: Birk Cliff Sorensen, Ping Hsien Tsai, Wai Pang Wong, John Edward Walsh, Louis Romo Martinez
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Patent number: D1061216Type: GrantFiled: August 26, 2021Date of Patent: February 11, 2025Assignee: ASSA ABLOY MEXICO, S.A. DE C.V.Inventors: Bernardo Noyola Martínez, José René Romualdo Arce, María Eugenia Vilá Diez, Ping Hsien Tsai, José Ameriso