US2834660A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of briquetting
Assignee: Gelsenkirchener Bergwerks AG
•
Filing: 1953-03-18
•
Granted: 1958-05-13
•
Expires: 1973-03-18
Abstract
No abstract record available.
Inventors
- 👤 Eisenhut Franz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:55
CPC Classifications
C; C10; C10L; C10L5/00; C10L5/02; C10L5/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
A PROCESS OF BRIQUETTING, COMPRISING THE STEPS OF INTIMATELY MIXING A WET, SUBDIVIDED SOLID MATERIAL HAVING A WATER CONTENT OF BETWEEN 3.9-90% BY WEIGHT WITH A MOLTEN PITCH IN AN AMOUNT SUFFICIENT TO BIND SAID SUBDIVIDED SOLID MATERIAL AND BETWEEN 1-30% BY WEIGHT, SAID MOLTEN PITCH CONTAINING BETWEEN 2-40% BY WEIGHT OF AT LEAST ONE POLYCYCLIC AROMATIC HYDROCARBON HAVING A MAXIMUM OF THREE RINGS SO AS TO FORM A HOMOGENEOUS MASS OF SAID WET, SUBDIVIDED SOLID MATERIAL AND SAID MOLTEN PITCH CONTAINING SAID POLYCYCLIC AROMATIC HYDROCARBON, THE AMOUNT OF WATER IN THE THUS FORMED MIXTURE BEING BETWEEN .8 AND 9 TIMES THE WEIGHT OF THE PITCH; AND DRYING AND COOLING SAID HOMOGENEOUS MASS, THEREBY CAUSING THE COMPONENTS THEREOF TO ADHERE TO EACH OTHER, THUS FORMING A COHERENT BRIQUETTE.
Claim 2
Dependent Claim
128 words
A PROCESS OF BRIQUETTING, COMPRISING THE STEPS OF INTIMATELY MIXING A WET, SUBDIVIDED SOLID MATERIAL HAVING A WATER CONTENT OF BETWEEN 3.9-90% BY WEIGHT WITH A MOLTEN PITCH IN AN AMOUNT SUFFICIENT TO BIND SAID SUBDIVIDED SOLID MATERIAL AND BETWEEN 1-30% BY WEIGHT, SAID MOLTEN PITCH CONTAINING BETWEEN 2-40% BY WEIGHT OF AT LEAST ONE POLYCYCLIC AROMATIC HYDROCARBON HAVING A MAXIMUM OF THREE RINGS SO AS TO FORM A HOMOGENEOUS MASS OF SAID WET, SUBDIVIDED SOLID MATERIAL AND SAID MOLTEN PITCH CONTAINING SAID POLYCYCLIC AROMATIC HYDROCARBON, THE AMOUNT OF WATER IN THE THUS FORMED MIXTURE BEING BETWEEN .8 AND 9 TIMES THE WEIGHT OF THE PITCH; AND DRYING AND COOLING SAID HOMOGENEOUS MASS, THEREBY CAUSING THE COMPONENTS THEREOF TO ADHERE TO EACH OTHER, THUS FORMING A COHERENT BRIQUETTE.
References Cited (Backward Citations)
GB189602993A
Cited
US1458716A
Cited
GB239474A
Cited
GB274876A
Cited
US2046532A
Cited
US2443029A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-12 | 1961-11-11 | 1962-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-12 | 1965-11-11 | 1966-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-12 | 1969-11-11 | 1970-05-13 | $7700.00 | Window Closed / Lapsed |