Patent US3240945A successfully refreshed from Google Patents.
US3240945A
Expired / Lapsed
US
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Shutter drive for photosensitive pinhole detectors
Assignee: General Electric Co
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Filing: 1962-06-01
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Granted: 1966-03-15
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Expires: 1982-06-01
Abstract
No abstract record available.
Inventors
- 👤 Dixon Corbin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:06
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/84; G01N21/88; G01N21/89; G01N21/892; G01N21/894
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
197 words
INSPECTION APPARATUS FOR DETECTING PINHOLES IN MATERIAL THAT MOVES ALONG A PATH, COMPRISING A SOURCE OF LIGHT ON ONE SIDE OF SAID PATH, A LIGHT SENSITIVE DEVICE LOCATED ON THE OPPOSITE SIDE OF SAID PATH IN A CHAMBER HAVING A SLOT, A SHUTTER SUPPORTED TO MOVE IN A LONGITUDINAL DIRECTION ALONG THE LENGTH OF THE SLOT IN SAID CHAMBER BETWEEN SAID LIGHT SOURCE AND SAID SLOT, A FLEXIBLE DRIVE STRIP ONE END OF WHICH IS FASTENED TO SAID SHUTTER TO CONTROL ITS POSITION ALONG SAID SLOT, THE WIDTH OF SAID DRIVE STRIP BEING GREATER THAN THE WIDTH OF SAID SLOT, MEANS CONNECTED TO THE OTHER END OF SAID DRIVE STRIP FOR DRIVING SAID STRIP BACK AND FORTH TO MOVE SAID SHUTTER, SAID DRIVE STRIP BEING RIGID ENOUGH TO PERMIT IT TO INDUCE SAID BACK AND FORTH MOVEMENT OF SAID SHUTTER UNDER CONTROL OF SAID DRIVING MEANS, AND MEANS LOCATED IN PROXIMITY TO SAID SLOT AND HAVING SURFACES WHICH COOPERATE WITH THE DRIVE STRIP FOR GUIDING SAID DRIVE STRIP IN A DIRECTION PARALLEL TO THE LONGITUDINAL AXIS OF SAID SLOT WHILE PREVENTING SUBSTANTIALLY ANY LIGHT LEAKAGE AROUND THE EDGES OF SAID DRIVE STRIP TO SAID LIGHT SENSITIVE DEVICE.
Claim 2
Dependent Claim
197 words
INSPECTION APPARATUS FOR DETECTING PINHOLES IN MATERIAL THAT MOVES ALONG A PATH, COMPRISING A SOURCE OF LIGHT ON ONE SIDE OF SAID PATH, A LIGHT SENSITIVE DEVICE LOCATED ON THE OPPOSITE SIDE OF SAID PATH IN A CHAMBER HAVING A SLOT, A SHUTTER SUPPORTED TO MOVE IN A LONGITUDINAL DIRECTION ALONG THE LENGTH OF THE SLOT IN SAID CHAMBER BETWEEN SAID LIGHT SOURCE AND SAID SLOT, A FLEXIBLE DRIVE STRIP ONE END OF WHICH IS FASTENED TO SAID SHUTTER TO CONTROL ITS POSITION ALONG SAID SLOT, THE WIDTH OF SAID DRIVE STRIP BEING GREATER THAN THE WIDTH OF SAID SLOT, MEANS CONNECTED TO THE OTHER END OF SAID DRIVE STRIP FOR DRIVING SAID STRIP BACK AND FORTH TO MOVE SAID SHUTTER, SAID DRIVE STRIP BEING RIGID ENOUGH TO PERMIT IT TO INDUCE SAID BACK AND FORTH MOVEMENT OF SAID SHUTTER UNDER CONTROL OF SAID DRIVING MEANS, AND MEANS LOCATED IN PROXIMITY TO SAID SLOT AND HAVING SURFACES WHICH COOPERATE WITH THE DRIVE STRIP FOR GUIDING SAID DRIVE STRIP IN A DIRECTION PARALLEL TO THE LONGITUDINAL AXIS OF SAID SLOT WHILE PREVENTING SUBSTANTIALLY ANY LIGHT LEAKAGE AROUND THE EDGES OF SAID DRIVE STRIP TO SAID LIGHT SENSITIVE DEVICE.
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) | 1969-03-14 | 1969-09-13 | 1970-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-14 | 1973-09-13 | 1974-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-14 | 1977-09-13 | 1978-03-15 | $7700.00 | Window Closed / Lapsed |