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Patent US3114790A successfully refreshed from Google Patents.
US3114790A
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Wide angle viewing apparatus for high vacuum systems
Assignee: Temescal Metallurgical Corp
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Filing: 1961-09-26
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Granted: 1963-12-17
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Expires: 1981-09-26
Abstract
No abstract record available.
Inventors
- 👤 Charles W Hanks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:00
CPC Classifications
G; G02; G02B; G02B23/00; G02B23/24; G02B23/2407
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
WIDE ANGLE VIEWING APPARATUS FOR VACUUM EQUIPMENT COMPRISING A PAIR OF ELONGATED CONICAL MEMBERS DISPOSED COAXIALLY AND ADAPTED FOR DISPOSITION WITH THE LARGE CONE ENDS DIRECTED INTO A VACUUM CHAMBER, SAID MEMBERS TOGETHER DEFINING ELONGATED PASSAGES HAVING A LARGE RATIO OF LENGTH TO HEIGHT, AT LEAST ONE LENS DISPOSED ADJACENT THE SMALL END OF SAID CONICAL MEMBERS FOR FOCUSING LIGHT TRANSMITTED THROUGH SAID PASSAGES, AND MEANS DIRECTING A SMALL FLOW OF GAS INTO THE SMALL END OF SAID CONICAL MEMBERS FOR DEFLECTING VAPOR IN A VACUUM CHAMBER ONTO SAID MEMBERS FOR CONDENSATION AND PREVENTING SUCH VAPOR FROM REACHING THE SMALL ENDS OF THE CONICAL MEMBERS.
Claim 2
Dependent Claim
105 words
WIDE ANGLE VIEWING APPARATUS FOR VACUUM EQUIPMENT COMPRISING A PAIR OF ELONGATED CONICAL MEMBERS DISPOSED COAXIALLY AND ADAPTED FOR DISPOSITION WITH THE LARGE CONE ENDS DIRECTED INTO A VACUUM CHAMBER, SAID MEMBERS TOGETHER DEFINING ELONGATED PASSAGES HAVING A LARGE RATIO OF LENGTH TO HEIGHT, AT LEAST ONE LENS DISPOSED ADJACENT THE SMALL END OF SAID CONICAL MEMBERS FOR FOCUSING LIGHT TRANSMITTED THROUGH SAID PASSAGES, AND MEANS DIRECTING A SMALL FLOW OF GAS INTO THE SMALL END OF SAID CONICAL MEMBERS FOR DEFLECTING VAPOR IN A VACUUM CHAMBER ONTO SAID MEMBERS FOR CONDENSATION AND PREVENTING SUCH VAPOR FROM REACHING THE SMALL ENDS OF THE CONICAL MEMBERS.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-12-16 | 1967-06-17 | 1967-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-16 | 1971-06-17 | 1971-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-16 | 1975-06-17 | 1975-12-17 | $7700.00 | Window Closed / Lapsed |