[특허]Automatic flushing device

[미국특허] Automatic flushing device 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	E03D-005/10
출원번호	US-0795015 (1991-11-20)
발명자 / 주소	Chiou Tzeng-Shyang (Kaohsiung TWX)
출원인 / 주소	Chen Chi Electro Chemical Co., Ltd. (Kaohsiung TWX 03)
인용정보	피인용 횟수 : 40 인용 특허 : 0

초록 ▼

A water and energy efficient automatic flushing device is used to control water flow from a water inlet pipe to a flushing conduit of a plumbing fixture, such as a toilet bowl. The automatic flushing device includes an electromagnetic valve unit and a control unit to control opening and closing action of the electromagnetic valve unit. The control unit includes a programmed central processing unit (CPU), a transmitter circuit, a detecting unit to detect the presence of a person using the plumbing fixture, a receiver circuit and a valve control circuit. The valve control circuit opens the valve unit to initiate a first flushing action after confirming that the plumbing fixture is in use, and to initiate a second flushing action after verifying that the person using the plumbing fixture has departed. The receiver circuit can distinguish if a received signal was reflected by a person using the plumbing fixture or by a hand that was placed directly in front of the detecting unit. Upon confirmation that the received signal was reflected by a hand, the CPU actuates the valve control circuit so as to open the valve unit and initiate a hand activated flushing action. The valve unit is closed and flushing is terminated when the hand is removed from the detecting unit.

대표청구항 ▼

An automatic flushing device for controlling the flow of water from a water inlet pipe to a flushing conduit of a plumbing fixture, comprising: an electromagnetic valve unit connected to said water inlet pipe and to said flushing conduit; and a control unit to control the opening and closing action of said electromagnetic valve unit, said control unit including: a programmed central processing unit; a transmitter circuit connected to and controlled by said central processing unit so as to transmit a set of coded electrical signals; a detecting unit to detect the presence of a person using said plumbing fixture, including a signal emitting unit connected to said transmitter circuit and generating a signal corresponding to said set of coded electrical signals, and a sensing unit for generating a first electrical signal corresponding to a received signal reflected by the person using said plumbing fixture; a receiver circuit connected to said central processing unit and to said sensing unit so as to transmit said first electrical signal from said sensing unit to said central processing unit; and a valve control circuit connected to said central processing unit and to said electromagnetic valve unit, said valve control circuit being actuated by said central processing unit so as to open or close said electromagnetic valve unit; said central processing unit including a first programmed means for actuating said valve control circuit so as to open said electromagnetic valve unit for a predetermined first time period when said first electrical signal from said sensing unit corresponds to said coded electrical signals transmitted by said transmitter circuit, and further including a second programmed means for actuating said valve control circuit so as to open said electromagnetic valve unit for a predetermined second time period when generation of said first electrical signal is terminated, indicating that the person using said plumbing fixture has departed; said sensing unit generating a second electrical signal corresponding to a received signal reflected by a hand placed directly in front of said detecting unit; said receiver circuit being able to distinguish if a received electrical signal from said sensing unit is said first electrical signal or said second electrical signal, said central processing unit further including a third programmed means for actuating said valve control circuit so as to open said electromagnetic valve unit upon reception of said second electrical signal and to close said electromagnetic valve unit when reception of said second electrical signal is terminated, indicating that the hand that was placed directly in front of said detecting unit has been removed.

이 특허를 인용한 특허 (40) 인용/피인용 타임라인 분석

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Sawaski, Joel D; Veros, Michael J, Capacitive sensing system and method for operating a faucet.
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Sawaski, Joel D; Veros, Michael J, Capacitive sensing system and method for operating a faucet.
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Davidson, Kyle R.; De Vries, Adam M., Capacitive user interface for a faucet and method of forming.
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Nowak, Bart; Du, Xan Vy; Stauder, Frank A.; Belz, Jeff, Dual flush electronic flush valve.
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Sawaski, Joel D.; Veros, Michael J., Electronic faucet with a capacitive sensing system and a method therefor.
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Rodenbeck, Robert W.; Jonte, Patrick B.; Koottungal, Paul D.; Spangler, Anthony G.; Veros, Michael J.; Marty, Garry R., Electronic user interface for electronic mixing of water for residential faucets.
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Rodenbeck, Robert W.; Jonte, Patrick B.; Koottungal, Paul D.; Spangler, Anthony G.; Veros, Michael J.; Marty, Garry R., Electronic user interface for electronic mixing of water for residential faucets.
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Rodenbeck, Robert W.; Koottungal, Paul D.; Spangler, Anthony G.; Veros, Michael J., Electronic user interface for electronic mixing of water for residential faucets.
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Meehan, Steven Kyle; Sawaski, Joel D; Bellamah, Greg F, Faucet including a pullout wand with a capacitive sensing.
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Rodenbeck, Robert W.; Spangler, Anthony G.; Veros, Michael J.; Koottungal, Paul D., Fluid delivery device with an in-water capacitive sensor.
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Snell, Nathan; Rodriguez, Rafael; Krawczyk, Todd; Lemerand, L. Gale, Hands-free door opener and method.
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Snell,Nathan; Rodriguez,Rafael; Krawczyk,Todd; Lemerand,L. Gale, Hands-free door opener and method.
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Marty, Garry Robin; Davidson, Kyle Robert; Meehan, Steven Kyle; Crowe, Darrell Scott, Mixing valve including a molded waterway assembly.
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Jonte, Patrick B.; Rodenbeck, Robert W.; Burke, David M.; Marty, Garry R., Multi-mode hands free automatic faucet.
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Jonte, Patrick B.; Rodenbeck, Robert W.; Burke, David M.; Marty, Garry R.; Huffington, Todd, Multi-mode hands free automatic faucet.
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Jonte, Patrick B.; Rodenbeck, Robert W.; Burke, David M.; Marty, Garry R.; Huffintgon, Todd, Multi-mode hands free automatic faucet.
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Jonte, Patrick B.; Rodenbeck, Robert W.; Burke, David M.; Marty, Garry Robin, Multi-mode hands free automatic faucet.
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Jonte, Patrick B; Rodenbeck, Robert W; Burke, David M; Marty, Garry R, Multi-mode hands free automatic faucet.
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Rodenbeck, Robert W.; Spangler, Anthony G.; Veros, Michael J.; Koottungal, Paul D., Pull-out wand.
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Rodenbeck, Robert W.; Spangler, Anthony G.; Veros, Michael J.; Koottungal, Paul D., Pull-out wand.
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Andrew J. Paese ; Steven M. Tervo ; Carter J. Thomas ; William R. Burnett ; David C. Shafer ; Fred Judson Heinzmann, Radar devices for low power applications and bathroom fixtures.
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Paese Andrew J. ; Tervo Steven M. ; Thomas Carter J. ; Burnett William R. ; Shafer David C. ; Heinzmann Fred Judson, Radar devices for low power applications and bathroom fixtures.
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Paese, Andrew J.; Tervo, Steven M.; Thomas, Carter J.; Burnett, William R.; Shafer, David C.; Heinzmann, Fred Judson, Radar devices for low power applications and bathroom fixtures.
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Marty, Garry R.; Sawaski, Joel D.; Thomas, Kurt J.; Davidson, Kyle R., Resistive coupling for an automatic faucet.
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Gauthier, Jerome M.; Vuong, Nhon T., System for remote operation of a personal hygiene or sanitary appliance.
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Koottungal, Paul D., Touch sensor.
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Davidson, Kyle Robert; Veros, Michael J.; Murray, Austin Ray; Koottungal, Paul D., User interface for a faucet.
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[미국특허] Automatic flushing device 원문보기

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