Patent US3279038A successfully refreshed from Google Patents.
US3279038A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making glass capsules for electrical components
Assignee: —
•
Filing: —
•
Granted: 1966-10-18
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Expires: 1983-10-18
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:13
CPC Classifications
H; H01; H01C; H01C1/00; H01C1/02; H01C1/024; Y; Y10; Y10S; Y10S65/00; Y10S65/04; Y10S65/11; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49082; Y10T29/49087; Y10T29/49117; Y10T29/49169; Y10T29/49171
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
200 words
THE METHOD OF ENCAPSULATING AN ELECTRICAL COMPONENT HAVING A BODY AND A PAIR OF CONDUCTIVE TERMINALS EXTENDING THEREFROM, SAID METHOD COMPRISING THE STEPS OF: THREADING ONE OF SAID TERMINALS THROUGH A FIRST METAL MEMBER AND THROUGH A MEMBER OF BRAZING MATERIAL; SEATING SAID METAL MEMBER IN A JIG ADJACENT TO A COIL; PLACING A GLASS TUBE AROUND SAID COMPONENT, SAID GLASS HAVING A COEFFICIENT OF THERMAL EXPANSION SUBSTANTIALLY MATCHING THAT OF SAID METAL MEMBER AND HAVING AN OPENING, SAID METAL MEMBER SUBSTANTIALLY FITTING SAID OPENING; BLOWING FORMING GAS ACROSS THE PORTION OF SAID METAL MEMBER AROUND SAID ONE TERMINAL; ENERGIZING SAID COIL WITH ELECTROMAGNETIC ENERGY TO HEAT SAID METAL MEMBER TO A TEMPERATURE AT WHICH SAID GLASS FLOWS AND AT WHICH SAID BRAZING MATERIAL MELTS, SAID METAL BEING IN A HIGH INTENSITY REGION OF THE ELECTROMAGNETIC FIELD OF SAID COIL AND HAVING A LAYER OF OXIDE ON THE PERIPHERY THEREOF; MAINTAINING THE ENERGY IN SAID COIL AT SAID LAST-NAMED LEVEL UNTIL AN ENTIRE RING OF CONTACT BETWEEN SAID LAYER OF OXIDE ON SAID METAL MEMBER AND THE MOLTEN GLASS HAS BEEN ESTABLISHED; AND THEREAFTER REDUCING SAID ENERGY TO ZERO AND PERMITTING SAID METAL MEMBER AND SAID GLASS TO COOL DOWN.
Claim 2
Independent Claim
200 words
THE METHOD OF ENCAPSULATING AN ELECTRICAL COMPONENT HAVING A BODY AND A PAIR OF CONDUCTIVE TERMINALS EXTENDING THEREFROM, SAID METHOD COMPRISING THE STEPS OF: THREADING ONE OF SAID TERMINALS THROUGH A FIRST METAL MEMBER AND THROUGH A MEMBER OF BRAZING MATERIAL; SEATING SAID METAL MEMBER IN A JIG ADJACENT TO A COIL; PLACING A GLASS TUBE AROUND SAID COMPONENT, SAID GLASS HAVING A COEFFICIENT OF THERMAL EXPANSION SUBSTANTIALLY MATCHING THAT OF SAID METAL MEMBER AND HAVING AN OPENING, SAID METAL MEMBER SUBSTANTIALLY FITTING SAID OPENING; BLOWING FORMING GAS ACROSS THE PORTION OF SAID METAL MEMBER AROUND SAID ONE TERMINAL; ENERGIZING SAID COIL WITH ELECTROMAGNETIC ENERGY TO HEAT SAID METAL MEMBER TO A TEMPERATURE AT WHICH SAID GLASS FLOWS AND AT WHICH SAID BRAZING MATERIAL MELTS, SAID METAL BEING IN A HIGH INTENSITY REGION OF THE ELECTROMAGNETIC FIELD OF SAID COIL AND HAVING A LAYER OF OXIDE ON THE PERIPHERY THEREOF; MAINTAINING THE ENERGY IN SAID COIL AT SAID LAST-NAMED LEVEL UNTIL AN ENTIRE RING OF CONTACT BETWEEN SAID LAYER OF OXIDE ON SAID METAL MEMBER AND THE MOLTEN GLASS HAS BEEN ESTABLISHED; AND THEREAFTER REDUCING SAID ENERGY TO ZERO AND PERMITTING SAID METAL MEMBER AND SAID GLASS TO COOL DOWN.
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) | 1969-10-17 | 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 |