Patent US3025204A successfully refreshed from Google Patents.
US3025204A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bonding high temperature resistant materials with tungsten hexametaphosphate
Assignee: Union Carbide Corp
•
Filing: 1960-04-07
•
Granted: 1962-03-13
•
Expires: 1980-04-07
Abstract
No abstract record available.
Inventors
- 👤 Edward A Heintz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:06
CPC Classifications
C; C04; C04B; C04B33/00; C04B33/02; C04B33/13; C04B33/1315
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
A PROCESS OF BONDING CERAMIC, GLASSY, METALLIC, AND LIKE MATERIAWLS HAVING A MELTING POINT GREATER THAN ABOUT 400*C., SAID PROCESS COMPRISING COMMUNICATING TUNGSTEN HEXAMETAPHOSPHATE TO A FINE PARTICLE SIZE; DISTRIBUTING SAID COMMINUTED TUNGSTEN HEXAMETAPHOSPHATE BETWEEN A PLURALITY OF ADJACENT AND CONTIGUOUS SURFACES TO BE BONDED; HEATING SAID TUNGSTEN HEXAMETAPHOSPHATE AND SAID SURFACES TO A TEMPERATURE OF AT LEAST 400*C., AND BELOW THE MELTING POINT OF THE SURFACES TO BE BONDED SO AS TO FORM A UNIFORM MELT OF TUNGSTEN HEXAMETAPHOSPHATE; AND COOLING THE ENTIRE MASS AT LEAST TO THE SOLIDIFICATION TEMPERATURE OF THE BONDING MATERIAL, THEREBY OBTAINING A STRONGLY ADHESIVE BOND BETWEEN SAID ADJACENT AND CONTIGUOUS SURFACES.
Claim 2
Dependent Claim
107 words
A PROCESS OF BONDING CERAMIC, GLASSY, METALLIC, AND LIKE MATERIAWLS HAVING A MELTING POINT GREATER THAN ABOUT 400*C., SAID PROCESS COMPRISING COMMUNICATING TUNGSTEN HEXAMETAPHOSPHATE TO A FINE PARTICLE SIZE; DISTRIBUTING SAID COMMINUTED TUNGSTEN HEXAMETAPHOSPHATE BETWEEN A PLURALITY OF ADJACENT AND CONTIGUOUS SURFACES TO BE BONDED; HEATING SAID TUNGSTEN HEXAMETAPHOSPHATE AND SAID SURFACES TO A TEMPERATURE OF AT LEAST 400*C., AND BELOW THE MELTING POINT OF THE SURFACES TO BE BONDED SO AS TO FORM A UNIFORM MELT OF TUNGSTEN HEXAMETAPHOSPHATE; AND COOLING THE ENTIRE MASS AT LEAST TO THE SOLIDIFICATION TEMPERATURE OF THE BONDING MATERIAL, THEREBY OBTAINING A STRONGLY ADHESIVE BOND BETWEEN SAID ADJACENT AND CONTIGUOUS SURFACES.
References Cited (Backward Citations)
US2486811A
Cited
US2518194A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-03-12 | 1965-09-11 | 1966-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-12 | 1969-09-11 | 1970-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-12 | 1973-09-11 | 1974-03-13 | $7700.00 | Window Closed / Lapsed |