IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
|
출원번호 |
US-0440648
(2003-05-19)
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발명자
/ 주소 |
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
8 인용 특허 :
4 |
초록
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An exhaust fan unit (26) is mounted in a hole (86) which extends through a central region (27) of a lid (22) of a water closet (12) for exhausting air from within a bowl (16) of the water closet (12) when the lid (22) is horizontally disposed, in a closed position. A housing (32) is mounted to the l
An exhaust fan unit (26) is mounted in a hole (86) which extends through a central region (27) of a lid (22) of a water closet (12) for exhausting air from within a bowl (16) of the water closet (12) when the lid (22) is horizontally disposed, in a closed position. A housing (32) is mounted to the lid (22) and has a window (56) for receiving a filter cartridge (34). A control circuit (96) has a position sensor (144) and control logic (142). The position sensor (144) detects when the lid (22) is moved from a vertically disposed, open position to the closed position. The control logic (142) applies electric power to operate the fan unit (72) for a predetermined time interval when the lid (22) is disposed in the closed position.
대표청구항
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1. An exhaust fan for a water closet, the water closet having a bowl, a seat and a lid, with the lid pivotally mounted to the bowl, the exhaust fan comprising:the lid having hinges for pivotally connecting to the bowl, a top surface and a bottom surface which faces the interior of the water bowl, th
1. An exhaust fan for a water closet, the water closet having a bowl, a seat and a lid, with the lid pivotally mounted to the bowl, the exhaust fan comprising:the lid having hinges for pivotally connecting to the bowl, a top surface and a bottom surface which faces the interior of the water bowl, the lid further having a hole formed therein, said hole extending from the top surface through the bottom surface at a central region of the lid, transverse to a plane defined by the lid, said plane extending horizontally when said lid is disposed in a closed position; a filter cartridge having filter media; a housing disposed within said hole in the lid, said housing having a first window for removably receiving said filter cartridge, such that said filter media is disposed for receiving the air being exhausted from within the bowl by a fan unit, said fan unit disposed in fixed relation to said housing for exhausting air from within the bowl, through said hole and exteriorly of the bowl of the water closet, transverse to the plane of the lid; said housing having apertures defining an airflow inlet and an airflow outlet, wherein said airflow inlet and said airflow outlet are axially and centrally aligned with said hole of the lid, such that said fan unit exhausts the air from within the bowl of the water closet when the lid is disposed in the closed position, in which the plane defined by the lid is horizontally disposed; and a control circuit having a position sensor and control logic, said position sensor detecting when the lid is moved from an open, vertical position to the closed position, and said control logic applying electric power to operate said fan unit according to a predetermined sequence when said lid is disposed in the closed position. 2. The exhaust fan according to claim 1, wherein said housing further comprises a second window for removably receiving a power pack for powering said fan unit.3. The exhaust fan according to claim 2, wherein said housing comprises a base mounted to an underside of the lid, said base having said first window for removably receiving said filter cartridge and said second window for removably receiving a battery pack; andsaid housing further having a cover plate mounted to said base, and enclosing said first and second windows. 4. The exhaust fan according to claim 3, further comprising a signal light connected to said control circuit, said signal light indicating a remaining electric charge of said power pack.5. The exhaust fan according to claim 4, wherein said signal light is powered on only when said fan unit is operating.6. The exhaust fan according to claim 1, further comprising a signal light connected to said control circuit, said signal light indicating when said fan unit is operating.7. The exhaust fan according to claim 1, wherein said predetermined sequence of said control logic of said control circuit comprises applying power to said fan unit for a predetermined exhaust time interval.8. The exhaust fan according to claim 1, wherein said housing further comprises a cap mounted to an upperside of said lid, and said fan unit further including a dust cover which is retained within said housing by said cap.9. An exhaust fan for a water closet, the water closet having a bowl, a seat and a lid, with the lid pivotally mounted to the bowl, the exhaust fan comprising:the lid having hinges for pivotally connecting to the bowl, a top surface and a bottom surface which faces the interior of the water bowl, the lid further having a hole formed therein, said hole extending from the top surface through the bottom surface at a central region of the lid, transverse to a plane defined by the lid, said plane extending horizontally when said lid is disposed in a closed position; a filter cartridge having filter media; a housing disposed within said hole in the lid, said housing having a first window for removably receiving said filter cartridge, such that said filter media is disposed for receiving the air being exhausted from within the bowl by a fan unit, said fan unit disposed in fixed relation to said housing for exhausting air from within the bowl, through said hole and exteriorly of the bowl of the water closet, transverse to the plane of the lid, said housing further having a second window for removably receiving a power pack for powering said fan unit; said housing having apertures defining an airflow inlet and an airflow outlet, wherein said airflow inlet and said airflow outlet are axially and centrally aligned with said hole of the lid, such that said fan unit exhausts the air from within the bowl of the water closet when the lid is disposed in the closed position, in which the plane defined by the lid is horizontally disposed; a control circuit having a position sensor and control logic, said position sensor detecting when the lid is moved from an open, vertical position to the closed position, and said control logic applying electric power to operate said fan unit according to a predetermined sequence when said lid is disposed in the closed position; and wherein said predetermined sequence of said control logic of said control circuit comprises delaying applying power to said fan unit for a predetermined fan start time delay after the lid of the water closet is closed, and then powering said fan unit for a predetermined exhaust time interval. 10. The exhaust fan according to claim 9, wherein said housing comprises a base mounted to an underside of the lid, said base having said first window for removably receiving a filter cartridge; andsaid housing further having a cover plate mounted to the base and enclosing said first window. 11. The exhaust fan according to claim 9, further comprising a signal light connected to said control circuit, said signal light indicating an amount of electric charge of said power pack.12. The exhaust fan according to claim 11, wherein said signal light is powered on only when said fan unit is operating.13. The exhaust fan according to claim 9, further comprising a signal light connected to said control circuit, said signal light indicating when said fan unit is operating.14. The exhaust fan according to claim 9, wherein said housing further comprises a cap mounted to an upperside of said lid, and said fan unit further including a dust cover which is retained within said housing by said cap.15. The exhaust fan according to claim 9, further comprising a battery pack which includes a plurality of batteries which are connected in series to provide an output voltage of twelve volts DC to power said fan unit.16. An exhaust fan for a water closet, the water closet having a bowl, a seat and a lid, with the lid pivotally mounted to the bowl, the exhaust fan comprising:the lid having hinges for pivotally connecting to the bowl, a top surface and a bottom surface which faces the interior of the water bowl, the lid further having a hole formed therein, said hole extending from the top surface through the bottom surface at a central region of the lid, transverse to a plane defined by the lid, said plane extending horizontally when said lid is disposed in a closed position; a filter cartridge having filter media; a power pack for powering said fan unit; a base disposed within said hole in the lid, said base unit having said first window for removably receiving a filter cartridge, such that said filter media is disposed for receiving the air being exhausted from within the bowl by a fan unit, said fan unit disposed in fixed relation to said housing for exhausting air from within the bowl, through said hole and exteriorly of the bowl of the water closet, transverse to the plane of the lid, said housing further having a second window for removably receiving a power pack for powering said fan unit; a cover plate mounted to the base, and enclosing said first and second windows; a cap mounted to an upperside of said lid; said base, said cover plate and said cap together having apertures defining an airflow inlet and an airflow outlet, wherein said airflow inlet and said airflow outlet are axially and centrally aligned with said hole of the lid, such that said fan unit exhausts the air from within the bowl of the water closet when the lid is disposed in the closed position, in which the plane defined by the lid is horizontally disposed; a control circuit having a position sensor and control logic, said position sensor detecting when the lid is moved from an open, vertical position to the closed position, and said control logic applying electric power to operate said fan unit according to a predetermined sequence when said lid is disposed in the closed position; and wherein said predetermined sequence of said control logic of said control circuit comprises delaying applying power to said fan unit for a predetermined fan start time delay after the lid of the water closet is closed, and then powering said fan unit for a predetermined exhaust time interval. 17. The exhaust fan according to claim 16, wherein said signal light is powered on only when said fan unit is operating.18. The exhaust fan according to claim 17, further comprising a dust cover disposed on said lid, between said fan unit and said cap.19. The exhaust fan according to claim 16, further comprising a battery pack which includes a plurality of batteries which are connected in series to provide an output voltage of twelve volts DC.20. The exhaust fan according to claim 19, further comprising a signal light connected to said control circuit, said signal light indicating a remaining electric charge status of said battery pack.
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