Patent US4593237A successfully refreshed from Google Patents.
US4593237A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Servo-system having an adjustment indicator
Assignee: Ricoh Co Ltd
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Filing: 1983-11-04
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Granted: 1986-06-03
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Expires: 2003-11-04
Abstract
Abstract An adjustable servo-system for controlling the operating condition of its servo-motor adjustably includes an indicator unit capable of indicating a new optimum operating time to be used. The operator can set the new optimum operating time in the servo-system just by looking at the indicator.
Inventors
- 👤 Hidetake Tanaka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 03:37
CPC Classifications
G; G05; G05B; G05B19/00; G05B19/02; G05B19/18; G05B19/19; G05B19/21; G05B19/23; G05B19/231; G05B19/409; G05B2219/00; G05B2219/30; G05B2219/34; G05B2219/34215; G05B2219/35; G05B2219/35436; G05B2219/37; G05B2219/37313; G05B2219/42; G05B2219/42104; G05B2219/43; G05B2219/43115
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
154 words
An adjustable servo-system capable of adjusting the operating time of its servo-motor, comprising; setting means for setting the operating time of said servo-system in a stepwise fashion over a predetermined range; operating means responsive to said setting means for operating said servo-motor in accordance with the operating time determined by said setting means, said operating means, when activated by a test switch, causing said servo-motor to once move to a predetermined position and detecting a currently set operating time which is currently set in said setting means and calculating an average operating time of said servo-motor by repreatedly operating said servo-motor over a predetermined number of times under said currently set operating time, thereby determining a difference between said currently set operating time and said average operating time to obtain an optimum operating time of said servo-motor on the basis of said difference; and means for indicating said optimum operating time to an operator.
Claim 2
Dependent Claim
154 words
An adjustable servo-system capable of adjusting the operating time of its servo-motor, comprising; setting means for setting the operating time of said servo-system in a stepwise fashion over a predetermined range; operating means responsive to said setting means for operating said servo-motor in accordance with the operating time determined by said setting means, said operating means, when activated by a test switch, causing said servo-motor to once move to a predetermined position and detecting a currently set operating time which is currently set in said setting means and calculating an average operating time of said servo-motor by repreatedly operating said servo-motor over a predetermined number of times under said currently set operating time, thereby determining a difference between said currently set operating time and said average operating time to obtain an optimum operating time of said servo-motor on the basis of said difference; and means for indicating said optimum operating time to an operator.
Claim 3
Dependent Claim
36 words
A servo-system of claim 1 wherein said setting means for setting includes a plurality of series-connected resistors and a like plurality of shorting bars each of which is provided to short the corresponding resistor when activated.
Claim 4
Dependent Claim
18 words
A servo-system of claim 2 wherein said plurality of series-connected resistors have electrical resistances which are weighted proportionately.
Claim 5
Dependent Claim
50 words
A servo-system of claim 3 wherein the electrical resistance of each of said series-connected resistors has a value determined by a product of 2 n and R where n is the number of the resistor in question from one end of said series connection and R is a predetermined resistance.
Claim 6
Dependent Claim
34 words
A servo-system of claim 2 wherein said means for indicating includes a like plurality of indicator lamps which are selectively lit to indicate that the corresponding shorting bar or bars are to be activated.
Claim 7
Dependent Claim
18 words
A servo-system of claim 5 wherein each of said indicator lamps is comprised of a light emitting diode.
Claim 8
Dependent Claim
24 words
A servo-system of claim 2 wherein said each of said like plurality of shorting bars is provided to be manually activated by an operator.
Claim 9
Dependent Claim
24 words
A servo-system of claim 1 further comprising a switch for causing said means for indicating to be operative or inoperative depending on its condition.
Claim 10
Dependent Claim
17 words
A servo-system claim 1 wherein said test switch is provided to be manually activated by an operator.
Claim 11
Dependent Claim
21 words
A servo-system of claim 1 wherein said servo-motor is operatively coupled for driving to move a print wheel/carriage of a printer.
Claim 12
Dependent Claim
17 words
A servo-system of claim 10 wherein said predetermined position is a home position of said print wheel/carriage.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-06-02 | 1989-12-02 | 1990-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-06-02 | 1993-12-02 | 1994-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-06-02 | 1997-12-02 | 1998-06-03 | $7700.00 | Window Closed / Lapsed |