US3894882A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Agglomerating powders
Assignee: JM Huber Corp
•
Filing: 1974-03-11
•
Granted: 1975-07-15
•
Expires: 1994-03-11
Abstract
Abstract A method and apparatus for agglomerating powders and non-flowing fine particle minerals such as clay, silicas, and silicates involving adding a slightly moist material to a rotating drum and spraying certain liquids into a critical area of the bed of the material in the drum.
Inventors
- 👤 Robert B Takewell
- 👤 Paul W Brandon
- 👤 Paul R Odom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:15
CPC Classifications
B; B01; B01J; B01J2/00; B01J2/12; C; C09; C09C; C09C3/00; C09C3/04; C09C3/045; C01; C01P; C01P2004/00; C01P2004/30; C01P2004/32; C01P2004/50; C01P2004/51; C01P2004/60; C01P2004/61; C01P2004/62; C01P2006/00; C01P2006/10; C01P2006/20; C01P2006/22; C01P2006/80; C01P2006/82
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
16 words
A PELLETIZED CLAY PRODUCT HAVING A PELLET SIZE DISTRIBUTION WITHIN THE LIMITS OF THE FOLLOWING TABLE:
Claim 2
Dependent Claim
16 words
A PELLETIZED CLAY PRODUCT HAVING A PELLET SIZE DISTRIBUTION WITHIN THE LIMITS OF THE FOLLOWING TABLE:
Claim 3
Dependent Claim
140 words
A novel pelleted material selected from the group consisting of clays, silicates, and silicas, and consisting of compacted pellets of varying sizes which efficiently utilize available voids in the normal arrangement of closely packed uniform spherical pellets comprising a gradation of pellets with from 25 to 55% of the pellets being Retainable on a 5 mesh screen, from 30 to 55% of the pellets being retainable on a 10 mesh screen but capable of passing through a 5 mesh screen, from 5 to 25% of the pellets being retainable on a 20 mesh screen but capable of passing through a 10 mesh screen, 0.5 to 5% of the pellets being retainable on a 40 mesh screen but capable of passing through a 20 mesh screen, and less than 2% of the pellets capable of passing through a 40 mesh screen.
Claim 4
Dependent Claim
140 words
A novel pelleted material selected from the group consisting of clays, silicates, and silicas, and consisting of compacted pellets of varying sizes which efficiently utilize available voids in the normal arrangement of closely packed uniform spherical pellets comprising a gradation of pellets with from 25 to 55% of the pellets being Retainable on a 5 mesh screen, from 30 to 55% of the pellets being retainable on a 10 mesh screen but capable of passing through a 5 mesh screen, from 5 to 25% of the pellets being retainable on a 20 mesh screen but capable of passing through a 10 mesh screen, 0.5 to 5% of the pellets being retainable on a 40 mesh screen but capable of passing through a 20 mesh screen, and less than 2% of the pellets capable of passing through a 40 mesh screen.
Claim 5
Dependent Claim
32 words
The novel pelleted material as in accordance with claim 2 exhibiting high compaction, efficient packing density, and easy dispersion and further comprising a dispersant homogeneously mixed with the material comprising each pellet.
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) | 1978-07-14 | 1979-01-13 | 1979-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-14 | 1983-01-13 | 1983-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-14 | 1987-01-13 | 1987-07-15 | $7700.00 | Window Closed / Lapsed |