US3170383A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High vacuum observation apparatus
Assignee: Temescal Metallurgical Corp
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Filing: 1961-09-26
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Granted: 1965-02-23
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Expires: 1981-09-26
Abstract
No abstract record available.
Inventors
- 👤 Charles D A Hunt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:40
CPC Classifications
F; F27; F27D; F27D21/00; F27D21/02; C; C23; C23C; C23C14/00; C23C14/22; C23C14/52; F27D25/00; F27D25/008; F27D99/00; F27D99/0073; F27D99/0075
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
187 words
AN APPARATUS FOR VIEWING THE INTERIOR OF AN EVACUATED CHAMBER HAVING CONDENSABLE VAPOR THEREIN COMPRISING AN ELONGATED VIEWING TUBE OPEN AT BOTH ENDS ADAPTED TO BE SUPPORTED IN A WALL OF AN EVACUATED CHAMBER SO AS TO EXTEND THERETHROUGH TOWARD AN AREA TO BE VIEWED, SAID TUBE TERMINATING AT END EXTERIOR TO AN EVACUATED CHAMBER IN AN ENLARGED CHAMBER HAVING WALLS AND HAVING A CROSS-SECTION AREA SUBSTANTIALLY GREATER THAN THE CROSSSECTIONAL AREA OF THE INTERIOR OF SAID TUBE, AND BEING IN COMMUNICATION WITH THE INTERIOR OF SAID TUBE, A VIEWING WINDOW SUPPORTED IN ONE OF SAID WALLS OF SAID ENLARGED CHAMBER OPPOSITE SAID EXTERIOR END OF SAID TUBE FOR ALLOWING VIEWING OF THE INTERIOR OF AN EVACUATED CHAMBER THROUGH SAID TUBE FROM SAID WINDOW, AND MEANS FOR INTRODUCING A GAS INTO SAID ENLARGED CHAMBER TO RAISE THE PRESSURE THEREIN ABOVE THE PRESSURE IN SAID TUBE TO INSURE FLOW OF THE GAS FROM SAID ENLARGED CHAMBER THROUGH SAID TUBE FOR MAXIMIZING DEFLECTING COLLISIONS OF GAS MOLECULES AND CONDENSABLE VAPOR TRAVELING ALONG THE TUBE, WHEREBY THE DEFLECTED VAPOR IMPINGES UPON THE TUBE WALLS AND CONDENSES BEFORE REACHING SAID WINDOW.
Claim 2
Independent Claim
187 words
AN APPARATUS FOR VIEWING THE INTERIOR OF AN EVACUATED CHAMBER HAVING CONDENSABLE VAPOR THEREIN COMPRISING AN ELONGATED VIEWING TUBE OPEN AT BOTH ENDS ADAPTED TO BE SUPPORTED IN A WALL OF AN EVACUATED CHAMBER SO AS TO EXTEND THERETHROUGH TOWARD AN AREA TO BE VIEWED, SAID TUBE TERMINATING AT END EXTERIOR TO AN EVACUATED CHAMBER IN AN ENLARGED CHAMBER HAVING WALLS AND HAVING A CROSS-SECTION AREA SUBSTANTIALLY GREATER THAN THE CROSSSECTIONAL AREA OF THE INTERIOR OF SAID TUBE, AND BEING IN COMMUNICATION WITH THE INTERIOR OF SAID TUBE, A VIEWING WINDOW SUPPORTED IN ONE OF SAID WALLS OF SAID ENLARGED CHAMBER OPPOSITE SAID EXTERIOR END OF SAID TUBE FOR ALLOWING VIEWING OF THE INTERIOR OF AN EVACUATED CHAMBER THROUGH SAID TUBE FROM SAID WINDOW, AND MEANS FOR INTRODUCING A GAS INTO SAID ENLARGED CHAMBER TO RAISE THE PRESSURE THEREIN ABOVE THE PRESSURE IN SAID TUBE TO INSURE FLOW OF THE GAS FROM SAID ENLARGED CHAMBER THROUGH SAID TUBE FOR MAXIMIZING DEFLECTING COLLISIONS OF GAS MOLECULES AND CONDENSABLE VAPOR TRAVELING ALONG THE TUBE, WHEREBY THE DEFLECTED VAPOR IMPINGES UPON THE TUBE WALLS AND CONDENSES BEFORE REACHING SAID WINDOW.
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) | 1968-02-23 | 1968-08-24 | 1969-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-23 | 1972-08-24 | 1973-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-23 | 1976-08-24 | 1977-02-23 | $7700.00 | Window Closed / Lapsed |