US3173983A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arc positioning servo
Assignee: Individual
•
Filing: 1962-01-02
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Granted: 1965-03-16
•
Expires: 1982-01-02
Abstract
No abstract record available.
Inventors
- 👤 James L Engle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:21
CPC Classifications
G; G01; G01J; G01J3/00; G01J3/02; G01J3/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
IN AN OPTICAL MECHANISM, A SOURCE OF LIGHT PRODUCING A LIGHT BEAM, AN OPTICAL SYSTEM INCLUDING A MONOCHROMATOR RECEIVING THE LIGHT BEAM FROM SAID SOURCE OF LIGHT AND TRANSMITTING AN EXIT LIGHT BEAM, A BEAM SPLITTER INTERPOSED IN THE PATH OF SAID EXIT LIGHT BEAM AFTER IT PASSES THROUGH THE MONOCHROMATOR AND PRODUCING A SUBSIDIARY LIGHT BEAM RESPONSIVE TO THE LIGHT BEAM PASSING THROUGH THE MONOCHROMATOR, PHOTMULTIPLIER MEANS RESPONSIVE TO SAID SUBSIDIARY LIGHT BEAM AND PRODUCING AN ELECTRICAL OUTPUT, MEANS FOR PROVIDING A REFERENCE VOLTAGE, MEANS FOR COMPARING SAID ELECTRICAL OUTPUT OF SAID PHOTOMULTIPLIER MEANS WITH SAID REFERENCE VOLTAGE, AND ELECTRICAL MEANS FOR MOVING THE SOURCE OF LIGHT WITH RESPECT TO THE INPUT TO THE MONOCHROMATOR FOR MAINTAINING THE EXIT LIGHT FLUX CONSTANT, SAID MEANS BEING RESPONSIVE TO THE DIFFERENCE BETWEEN SAID REFERENCE VOLTAGE AND SAID ELECTRICAL OUTPUT OF THE PHOTOMULTIPLIER MEANS.
Claim 2
Dependent Claim
142 words
IN AN OPTICAL MECHANISM, A SOURCE OF LIGHT PRODUCING A LIGHT BEAM, AN OPTICAL SYSTEM INCLUDING A MONOCHROMATOR RECEIVING THE LIGHT BEAM FROM SAID SOURCE OF LIGHT AND TRANSMITTING AN EXIT LIGHT BEAM, A BEAM SPLITTER INTERPOSED IN THE PATH OF SAID EXIT LIGHT BEAM AFTER IT PASSES THROUGH THE MONOCHROMATOR AND PRODUCING A SUBSIDIARY LIGHT BEAM RESPONSIVE TO THE LIGHT BEAM PASSING THROUGH THE MONOCHROMATOR, PHOTMULTIPLIER MEANS RESPONSIVE TO SAID SUBSIDIARY LIGHT BEAM AND PRODUCING AN ELECTRICAL OUTPUT, MEANS FOR PROVIDING A REFERENCE VOLTAGE, MEANS FOR COMPARING SAID ELECTRICAL OUTPUT OF SAID PHOTOMULTIPLIER MEANS WITH SAID REFERENCE VOLTAGE, AND ELECTRICAL MEANS FOR MOVING THE SOURCE OF LIGHT WITH RESPECT TO THE INPUT TO THE MONOCHROMATOR FOR MAINTAINING THE EXIT LIGHT FLUX CONSTANT, SAID MEANS BEING RESPONSIVE TO THE DIFFERENCE BETWEEN SAID REFERENCE VOLTAGE AND SAID ELECTRICAL OUTPUT OF THE PHOTOMULTIPLIER MEANS.
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) | 1968-03-15 | 1968-09-14 | 1969-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-15 | 1972-09-14 | 1973-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-15 | 1976-09-14 | 1977-03-16 | $7700.00 | Window Closed / Lapsed |