US3124691A
Expired / Lapsed
US
⏱️ 0.0 years remaining
light sensitive line tracing apparatus
Assignee: Stewart Warner Corp
•
Filing: 1960-09-19
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Granted: 1964-03-10
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Expires: 1980-09-19
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:28
CPC Classifications
G; G06; G06K; G06K11/00; G06K11/02; B; B23; B23K; B23K7/00; B23K7/002; B23K7/004; B23Q; B23Q35/00; B23Q35/04; B23Q35/08; B23Q35/12; B23Q35/127; B23Q35/128; B23Q35/24; B23Q35/38; B23Q35/40
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
203 words
A SYSTEM FOR SCANNING A LINE COMPRISING A SCANNING HEAD, SAID SCANNING HEAD COMPRISING PHOTOSENSITIVE MEANS HAVING A SENSITIVE AREA POSITIONED TO HAVE AN IMAGE OF THE SCANNING FIELD CONTAINING THE LINE CAST THEREON, SAID PHOTOSENSITIVE MEANS ADAPTED TO CAUSE FLUCTUATIONS IN AN ELECTRIC SIGNAL PROPORTIONAL TO VARIATIONS IN LIGHT INTENSITY, THE LENGTH OF THE SENSITIVE AREA IN A DIRECTION TRANSVERSE TO THE LINE BEING SUBSTANTIALLY GREATER THAN THE WIDTH OF THE IMAGE OF THE LINE, OPAQUE MEANS DISPOSED BETWEEN THE SENSITIVE AREA AND THE LINE, MEANS FOR OSCILLATING SAID OPAQUE MEANS ESSENTIALLY TRANSVERSELY TO THE LINE FOR PERIODICALLY OBSTRUCTING THE IMAGE OF THE LINE ON THE SENSITIVE AREA, SAID OPAQUE MEANS OSCILLATING WITH EQUAL AMPLITUDE ACROSS A PLANE PERPENDICULAR TO SAID SENSITIVE AREA AND CONTAINING THE CENTER OF THE SCANNING FIELD, MEANS FOR SELECTING FROM THE FLUCTUATING SIGNAL OUTPUT OF THE SCANNING HEAD AN ODD HARMONIC COMPONENT OF THE OSCILLATION FREQUENCY, SAID ODD HARMONIC COMPONENT HAVING THE PROPERTY OF REVERSING ITS PHASE AS THE LINE MOVES FROM ONE SIDE OF SAID PLANE TO THE OTHER, AND MEANS SYNCHRONIZED WITH THE OSCILLATIONS OF SAID OPAQUE MEANS AND RECIPIENT OF SAID ODD HARMONIC COMPONENT FOR PRODUCING DIFFERENT ELECTRICAL OUTPUTS FOR THE TWO OPPOSITE PHASES.
Claim 2
Independent Claim
203 words
A SYSTEM FOR SCANNING A LINE COMPRISING A SCANNING HEAD, SAID SCANNING HEAD COMPRISING PHOTOSENSITIVE MEANS HAVING A SENSITIVE AREA POSITIONED TO HAVE AN IMAGE OF THE SCANNING FIELD CONTAINING THE LINE CAST THEREON, SAID PHOTOSENSITIVE MEANS ADAPTED TO CAUSE FLUCTUATIONS IN AN ELECTRIC SIGNAL PROPORTIONAL TO VARIATIONS IN LIGHT INTENSITY, THE LENGTH OF THE SENSITIVE AREA IN A DIRECTION TRANSVERSE TO THE LINE BEING SUBSTANTIALLY GREATER THAN THE WIDTH OF THE IMAGE OF THE LINE, OPAQUE MEANS DISPOSED BETWEEN THE SENSITIVE AREA AND THE LINE, MEANS FOR OSCILLATING SAID OPAQUE MEANS ESSENTIALLY TRANSVERSELY TO THE LINE FOR PERIODICALLY OBSTRUCTING THE IMAGE OF THE LINE ON THE SENSITIVE AREA, SAID OPAQUE MEANS OSCILLATING WITH EQUAL AMPLITUDE ACROSS A PLANE PERPENDICULAR TO SAID SENSITIVE AREA AND CONTAINING THE CENTER OF THE SCANNING FIELD, MEANS FOR SELECTING FROM THE FLUCTUATING SIGNAL OUTPUT OF THE SCANNING HEAD AN ODD HARMONIC COMPONENT OF THE OSCILLATION FREQUENCY, SAID ODD HARMONIC COMPONENT HAVING THE PROPERTY OF REVERSING ITS PHASE AS THE LINE MOVES FROM ONE SIDE OF SAID PLANE TO THE OTHER, AND MEANS SYNCHRONIZED WITH THE OSCILLATIONS OF SAID OPAQUE MEANS AND RECIPIENT OF SAID ODD HARMONIC COMPONENT FOR PRODUCING DIFFERENT ELECTRICAL OUTPUTS FOR THE TWO OPPOSITE PHASES.
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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) | 1967-03-10 | 1967-09-09 | 1968-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-10 | 1971-09-09 | 1972-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-10 | 1975-09-09 | 1976-03-10 | $7700.00 | Window Closed / Lapsed |