Patent US3279877A successfully refreshed from Google Patents.
US3279877A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for processing high-pressure vapor-discharge arc tube
Assignee: Philips North America LLC
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Filing: 1963-12-31
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Granted: 1966-10-18
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Expires: 1983-12-31
Abstract
No abstract record available.
Inventors
- 👤 John D Smith
- 👤 Daniel A Larson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:08
CPC Classifications
H; H01; H01J; H01J9/00; H01J9/38; H01J9/395; H01J61/00; H01J61/02; H01J61/12; H01J61/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
215 words
THE METHOD OF DOSING A PARTIALLY FABRICATED HIGH PRESSURE VAPOR-DISCHARGE ARC TUBE OF THE MERCURY-ADDITIVE TYPE WITH A DISCHARGE-SUSTAINING FILLING, WHICH ARC TUBE WHEN COMPLETELY FABRICATED ENCLOSED A PREDETERMINED VOLUME AND IS ADAPTED TO BE NORMALLY OPERATED WITH A PREDETERMINED POWER INPUT, WHICH METHOD COMPRISES: INTRODUCING INTO SAID PARTIALLY FABRICATED ARC TUBE A PREDETERMINED PRESSURE OF INERT IONIZABLE STARTING GAS, A PREDETERIMNED AMOUNT OF MERCURY AT LEAST PART OF WHICH IS CHEMICALLY COMBINED WITH A PREDETERMINED AMOUNT OF SELECTED HALOGEN, AND A PREDETERMINED AMOUNT OF SELECTED ADDITIVE METAL WHICH WILL REACT WITH MERCURY HALIDE TO FORM ADDITIVE METAL HALIDE; THE PREDETERMINED AMOUNTED OF MERCURY INTRODUCED INTO SAID ARC TUBE, WHEN COMPLETELY VAPORIZE DURING NORMAL OPERATION OF SAID ARC TUBE, ESTABLISHING A PREDETERMINED VAPOR PRESSURE IN SAID ARC TUBE, THE TOTAL HALOGEN INTRODUCED INTO SAID ARC TUBE IN THE FORM OF MERCURY HALIDE, WHEN REACTED WITH SAID FINELY DIVIDED ADDITIVE METAL; FORMING A PREDETERMINED AMOUNT OF ADDITIVE METAL HALIDE IN SAID ARC TUBE; AND THE TOTAL AMOUNT OF SAID ADDITIVE METAL INTRODUCED INTO SAID ARC TUBE BEING AT LEAST SUFFICIENT TO REACT WITH ALL OF THE HALOGEN CONSTITUENT OF THE MERCURY HALIDE INTRODUCED IN SAID ARC TUBE TO FORM ADDITIVE METAL HALIDE; AND SEALING SAID ARC TUBE AFTER INTRODUCING SAID DISCHARGE-SUSTAINING FILLING INTO SAID ARC TUBE.
Claim 2
Independent Claim
215 words
THE METHOD OF DOSING A PARTIALLY FABRICATED HIGH PRESSURE VAPOR-DISCHARGE ARC TUBE OF THE MERCURY-ADDITIVE TYPE WITH A DISCHARGE-SUSTAINING FILLING, WHICH ARC TUBE WHEN COMPLETELY FABRICATED ENCLOSED A PREDETERMINED VOLUME AND IS ADAPTED TO BE NORMALLY OPERATED WITH A PREDETERMINED POWER INPUT, WHICH METHOD COMPRISES: INTRODUCING INTO SAID PARTIALLY FABRICATED ARC TUBE A PREDETERMINED PRESSURE OF INERT IONIZABLE STARTING GAS, A PREDETERIMNED AMOUNT OF MERCURY AT LEAST PART OF WHICH IS CHEMICALLY COMBINED WITH A PREDETERMINED AMOUNT OF SELECTED HALOGEN, AND A PREDETERMINED AMOUNT OF SELECTED ADDITIVE METAL WHICH WILL REACT WITH MERCURY HALIDE TO FORM ADDITIVE METAL HALIDE; THE PREDETERMINED AMOUNTED OF MERCURY INTRODUCED INTO SAID ARC TUBE, WHEN COMPLETELY VAPORIZE DURING NORMAL OPERATION OF SAID ARC TUBE, ESTABLISHING A PREDETERMINED VAPOR PRESSURE IN SAID ARC TUBE, THE TOTAL HALOGEN INTRODUCED INTO SAID ARC TUBE IN THE FORM OF MERCURY HALIDE, WHEN REACTED WITH SAID FINELY DIVIDED ADDITIVE METAL; FORMING A PREDETERMINED AMOUNT OF ADDITIVE METAL HALIDE IN SAID ARC TUBE; AND THE TOTAL AMOUNT OF SAID ADDITIVE METAL INTRODUCED INTO SAID ARC TUBE BEING AT LEAST SUFFICIENT TO REACT WITH ALL OF THE HALOGEN CONSTITUENT OF THE MERCURY HALIDE INTRODUCED IN SAID ARC TUBE TO FORM ADDITIVE METAL HALIDE; AND SEALING SAID ARC TUBE AFTER INTRODUCING SAID DISCHARGE-SUSTAINING FILLING INTO SAID ARC TUBE.
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) | 1969-10-17 | 1970-04-18 | 1970-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-17 | 1974-04-18 | 1974-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-17 | 1978-04-18 | 1978-10-18 | $7700.00 | Window Closed / Lapsed |