Patent US3335602A successfully refreshed from Google Patents.
Patent US3085464A successfully refreshed from Google Patents.
US3085464A
Expired / Lapsed
US
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Transparent wall-element
Assignee: Compagnie de Saint Gobain SA
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Filing: 1960-10-18
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Granted: 1963-04-16
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Expires: 1980-10-18
Abstract
No abstract record available.
Inventors
- 👤 Touvay Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:23
CPC Classifications
G; G21; G21F; G21F7/00; G21F7/02; G21F7/03; E; E06; E06B; E06B5/00; E06B5/10; E06B5/18; F; F23; F23M; F23M11/00; F23M11/04; F23M11/042; F23M7/00; G02; G02B; G02B23/00; G02B23/24; G02B23/2476
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
AN ENCLOSURE, IN PARTICULAR AN ENCLOSURE WHICH IS THE SITE OF DANGEROUS RADIATIONS, HAVING A WALL AND INSPECTION MEANS MOUNTED THEREIN COMPRISING A STEPPED EMBRASURE IN THE WALL, A STEPPED FRAME FITTING THE EMBRASURE, SAID FRAME INCLUDING OPPOSED CYLINDRICAL STEPS, AND OPPOSED SURFACES OF CYLINDRICAL SECTION SET IN THE WALL, A CYLINDRICAL PORT FITTING INTO THE CYLINDRICAL SECTIONS AND HAVING CYLINDRICAL STEPS OVERLAPPING SAID STEPS, BEARING MEANS FOR THE PORT ENGAGED WITH SAID OVERLAPPING STEPS TO IMPART ROTATABILITY TO THE PORT, A VIEWING APERTURE EXTENDING THROUGH SAID PORT COMPRISING PROGRESSIVELY LARGER STEPPED SECTIONS CLOSED BY TRANSPARENT, REMOVABLE PLATES WHICH CLOSE THE APERTURE, A NEST OF TRANSPARENT PLATES INTERPOSED BETWEEN SAID CLOSING MEANS, SAID BEARING MEANS PERMITTING THE ROTATION OF THE CYLINDRICAL PORT TO A POSITION IN WHICH THE VIEWING APERTURE IS PROTECTED AGAINST THE RADIATIONS BY THE SURROUNDING FRAME.
Claim 2
Dependent Claim
139 words
AN ENCLOSURE, IN PARTICULAR AN ENCLOSURE WHICH IS THE SITE OF DANGEROUS RADIATIONS, HAVING A WALL AND INSPECTION MEANS MOUNTED THEREIN COMPRISING A STEPPED EMBRASURE IN THE WALL, A STEPPED FRAME FITTING THE EMBRASURE, SAID FRAME INCLUDING OPPOSED CYLINDRICAL STEPS, AND OPPOSED SURFACES OF CYLINDRICAL SECTION SET IN THE WALL, A CYLINDRICAL PORT FITTING INTO THE CYLINDRICAL SECTIONS AND HAVING CYLINDRICAL STEPS OVERLAPPING SAID STEPS, BEARING MEANS FOR THE PORT ENGAGED WITH SAID OVERLAPPING STEPS TO IMPART ROTATABILITY TO THE PORT, A VIEWING APERTURE EXTENDING THROUGH SAID PORT COMPRISING PROGRESSIVELY LARGER STEPPED SECTIONS CLOSED BY TRANSPARENT, REMOVABLE PLATES WHICH CLOSE THE APERTURE, A NEST OF TRANSPARENT PLATES INTERPOSED BETWEEN SAID CLOSING MEANS, SAID BEARING MEANS PERMITTING THE ROTATION OF THE CYLINDRICAL PORT TO A POSITION IN WHICH THE VIEWING APERTURE IS PROTECTED AGAINST THE RADIATIONS BY THE SURROUNDING FRAME.
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) | 1966-04-15 | 1966-10-15 | 1967-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-15 | 1970-10-15 | 1971-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-15 | 1974-10-15 | 1975-04-16 | $7700.00 | Window Closed / Lapsed |