Patent US5063955A successfully refreshed from Google Patents.
US5063955A
Expired / Lapsed
US
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Method of driving an automatic on-off valve for a water passageway
Assignee: Inax Corp
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Filing: 1990-07-03
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Granted: 1991-11-12
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Expires: 2010-07-03
Abstract
Abstract A method of driving an automatic on-off valve for a water passageway uses the automatic on-off valve including an electromagnetic valve for opening and closing the water passageway, a sensor unit for detecting an object such as a man or a human hand and a control unit for controlling supply/cut-off of driving electric power supplied from a power supply to the electromagnetic valve in response to a signal transmitted from the sensor unit. The method comprises the steps of: permitting the control unit to control an operation of the electromagnetic valve in a normal state; manually supplying the electromagnetic valve with the driving power given from a manual driving unit connected to the electromagnetic valve; and thus forcibly driving the electromagnetic valve.
Inventors
- 👤 Shigeru Sakakibara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:56
CPC Classifications
E; E03; E03D; E03D5/00; E03D5/10; E03D5/105; Y; Y10; Y10S; Y10S4/00; Y10S4/03; Y10T; Y10T137/00; Y10T137/0318
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
149 words
A method of driving an automatic on-off valve for a water passageway, said automatic on-off valve including an electromagnetic valve for opening and closing said water passageway, a sensor unit for detecting an object and a control unit for controlling supply/cut-off of driving electric power supplied from a power supply to said electromagnetic valve in response to a signal transmitted from said sensor unit, said method comprising the steps of: permitting said control unit to control an operation of said electromagnetic valve in a normal state; connecting a manual driving unit to said electromagnetic valve; manually supplying said electromagnetic valve with driving power given from the manual driving unit, said driving power from the manual driving unit being in the form of pulses and having a pulse continuity time longer than that of the driving electric power supplied through the control unit; and thus forcibly driving said electromagnetic valve.
Claim 2
Independent Claim
149 words
A method of driving an automatic on-off valve for a water passageway, said automatic on-off valve including an electromagnetic valve for opening and closing said water passageway, a sensor unit for detecting an object and a control unit for controlling supply/cut-off of driving electric power supplied from a power supply to said electromagnetic valve in response to a signal transmitted from said sensor unit, said method comprising the steps of: permitting said control unit to control an operation of said electromagnetic valve in a normal state; connecting a manual driving unit to said electromagnetic valve; manually supplying said electromagnetic valve with driving power given from the manual driving unit, said driving power from the manual driving unit being in the form of pulses and having a pulse continuity time longer than that of the driving electric power supplied through the control unit; and thus forcibly driving said electromagnetic valve.
Claim 3
Dependent Claim
19 words
The driving method as set forth in claim 1, wherein said manual driving unit is of a portable type.
Claim 4
Dependent Claim
18 words
The driving method as set forth in claim 1, wherein said electromagnetic valve is of a latching type.
References Cited (Backward Citations)
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Cited
JPS6148682A
Cited
EP0225016A1
Cited
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-11-11 | 1995-05-13 | 1995-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-11-11 | 1999-05-13 | 1999-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-11-11 | 2003-05-13 | 2003-11-12 | $7700.00 | Window Closed / Lapsed |