Patent US3198950A successfully refreshed from Google Patents.
US3198950A
Expired / Lapsed
US
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Line following apparatus having a light source energized by selected phases of a reference voltage
Assignee: F L MOSELEY CO
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Filing: 1960-11-21
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Granted: 1965-08-03
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Expires: 1980-11-21
Abstract
No abstract record available.
Inventors
- 👤 Francis L Moseley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:11
CPC Classifications
G; G05; G05B; G05B19/00; G05B19/02; G05B19/04; G05B19/12; G05B19/124; G05B2219/00; G05B2219/20; G05B2219/23; G05B2219/23202
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
62 words
A LINE SENSING DEVICE FOR AN AUTOMATIC LINE FOLLOWING APPARATUS COMPRISING A SINGLE PHOTOCELL, A PLURALITY OF LAMPS, A SOURCE OF REFERENCE VOLTAGE, MEANS FOR ENERGIZING CERTAIN OF THE RESPECTIVE LAMPS WITH DIFFERENT SELECTED PORTIONS OF THE WAVEFORM OCCURRING AT DIFFERENT TIMES IN THE CYCLE OF SAID REFERENCE VOLTAGE, MEANS FOR REFLECTING LIGHT FROM SAID LAMPS TOWARD SAID PHOTOCELL, AND MEANS FOR
Claim 2
Dependent Claim
62 words
A LINE SENSING DEVICE FOR AN AUTOMATIC LINE FOLLOWING APPARATUS COMPRISING A SINGLE PHOTOCELL, A PLURALITY OF LAMPS, A SOURCE OF REFERENCE VOLTAGE, MEANS FOR ENERGIZING CERTAIN OF THE RESPECTIVE LAMPS WITH DIFFERENT SELECTED PORTIONS OF THE WAVEFORM OCCURRING AT DIFFERENT TIMES IN THE CYCLE OF SAID REFERENCE VOLTAGE, MEANS FOR REFLECTING LIGHT FROM SAID LAMPS TOWARD SAID PHOTOCELL, AND MEANS FOR
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) | 1968-08-02 | 1969-02-01 | 1969-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-02 | 1973-02-01 | 1973-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-02 | 1977-02-01 | 1977-08-03 | $7700.00 | Window Closed / Lapsed |