US3205366A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shutter-operated photoelectric switch
Assignee: Individual
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Filing: 1962-07-25
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Granted: 1965-09-07
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Expires: 1982-07-25
Abstract
No abstract record available.
Inventors
- 👤 Phillip A Akin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:35
CPC Classifications
H; H03; H03K; H03K17/00; H03K17/94; H03K17/965; H03K17/968
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
A SHUTTER-OPERATED PHOTOELECTRIC SWITCH COMPRISING, IN COMBINATION: A PHOTOELECTRIC SENSOR DEVICE; A LIGHT SOURCE FOR ILLUMINATING SAID SENSOR DEVICE; HOUSING MEANS IN WHICH SAID SENSOR DEVICE IS DISPOSED; AND A SHUTTER COOPERATING WITH SAID HOUSING MEANS FOR CONTROLLING THE ILLUMINATION SUPPLIED TO SAID SENSOR DEVICE FROM SAID LIGHT SOURCE; SAID SHUTTER BEING ACTUABLE FOR MOVING BETWEEN COMPLETELY OPEN AND COMPLETELY CLOSED POSITIONS; AND MEANS FOR CONTROLLING THE RELATIONSHIP BETWEEN SAID LIGHT SOURCE, SAID SENSOR DEVICE, AND SAID SHUTTER SUCH THAT SAID SENSOR DEVICE EXPERIENCES A CHANGE BETWEEN ITS MINIMUM AND MAXIMUM LEVELS OF ILLUMINATION IN RESPONSE TO ONLY A PARTIAL OPENING OR CLOSING OF SAID SHUTTER.
Claim 2
Dependent Claim
106 words
A SHUTTER-OPERATED PHOTOELECTRIC SWITCH COMPRISING, IN COMBINATION: A PHOTOELECTRIC SENSOR DEVICE; A LIGHT SOURCE FOR ILLUMINATING SAID SENSOR DEVICE; HOUSING MEANS IN WHICH SAID SENSOR DEVICE IS DISPOSED; AND A SHUTTER COOPERATING WITH SAID HOUSING MEANS FOR CONTROLLING THE ILLUMINATION SUPPLIED TO SAID SENSOR DEVICE FROM SAID LIGHT SOURCE; SAID SHUTTER BEING ACTUABLE FOR MOVING BETWEEN COMPLETELY OPEN AND COMPLETELY CLOSED POSITIONS; AND MEANS FOR CONTROLLING THE RELATIONSHIP BETWEEN SAID LIGHT SOURCE, SAID SENSOR DEVICE, AND SAID SHUTTER SUCH THAT SAID SENSOR DEVICE EXPERIENCES A CHANGE BETWEEN ITS MINIMUM AND MAXIMUM LEVELS OF ILLUMINATION IN RESPONSE TO ONLY A PARTIAL OPENING OR CLOSING OF SAID SHUTTER.
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) | 1968-09-06 | 1969-03-08 | 1969-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-06 | 1973-03-08 | 1973-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-06 | 1977-03-08 | 1977-09-07 | $7700.00 | Window Closed / Lapsed |