US3036675A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High-melting-point seals
Assignee: Thales SA
•
Filing: 1957-05-22
•
Granted: 1962-05-29
•
Expires: 1977-05-22
Abstract
No abstract record available.
Inventors
- 👤 Benichou Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:04
CPC Classifications
C; C04; C04B; C04B37/00; C04B37/02; C04B37/023; C04B37/025; C04B2237/00; C04B2237/02; C04B2237/04; C04B2237/06; C04B2237/062; C04B2237/30; C04B2237/32; C04B2237/34; C04B2237/341; C04B2237/343; C04B2237/40; C04B2237/403; C04B2237/405; C04B2237/50; C04B2237/62; C04B2237/64; C04B2237/76; C04B2237/765; C04B2237/78; C04B2237/84; C04B2237/88
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
A PROCESS FOR PROVIDING A SEAL BETWEEN A METALLIC PART AND AN INSULATING PART WHICH MAINTAINS ITS TIGHTNESS EVEN UPON SUBJECTION TO ELEVATED TEMPERATURES IN THE RANGE OF 800*C., COMPRISING THE STEPS OF GRINDING A DOUBLE SILICATE IN NATIVE FORM OF ALUMINA AND POTASH INTO FINE POWDER, OF MIXING SAID POWDER TO A BINDER TO FORM A THICK PASTE, OF APPLYING SAID PASTE BETWEEN THE PIECES TO BE SEALED IN A LAYER OF PREDETERMINED THICKNESS, AND OF HEATING THE ASSEMBLY UNDER CONTROLLED PRESSURE TO A TEMPERATURE PROVIDING COMPLETE FUSION OF SAID PASTE.
Claim 2
Dependent Claim
92 words
A PROCESS FOR PROVIDING A SEAL BETWEEN A METALLIC PART AND AN INSULATING PART WHICH MAINTAINS ITS TIGHTNESS EVEN UPON SUBJECTION TO ELEVATED TEMPERATURES IN THE RANGE OF 800*C., COMPRISING THE STEPS OF GRINDING A DOUBLE SILICATE IN NATIVE FORM OF ALUMINA AND POTASH INTO FINE POWDER, OF MIXING SAID POWDER TO A BINDER TO FORM A THICK PASTE, OF APPLYING SAID PASTE BETWEEN THE PIECES TO BE SEALED IN A LAYER OF PREDETERMINED THICKNESS, AND OF HEATING THE ASSEMBLY UNDER CONTROLLED PRESSURE TO A TEMPERATURE PROVIDING COMPLETE FUSION OF SAID PASTE.
References Cited (Backward Citations)
US2436005A
Cited
US1443813A
Cited
US1734698A
Cited
US2290107A
Cited
US2248415A
Cited
US2469211A
Cited
US2562163A
Cited
US2670572A
Cited
US2708787A
Cited
US2743553A
Cited
US2771969A
Cited
US2774681A
Cited
US2888406A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-05-28 | 1965-11-27 | 1966-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-28 | 1969-11-27 | 1970-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-28 | 1973-11-27 | 1974-05-29 | $7700.00 | Window Closed / Lapsed |