US3682399A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for comminuting and dispersing solid particles
Assignee: Vyzkumny Ustav Organickych Syntez AS
•
Filing: 1969-03-25
•
Granted: 1972-08-08
•
Expires: 1989-03-25
Abstract
Abstract Apparatus for comminuting dry solid particles to a size of one micron or less comprises a vessel which contains a supply of balls agitated by one or more disks mounted on a shaft which is coaxial with and extends into the vessel. The comminuted material is evacuated by gravity or by conveying a gas through the interior of the vessel. The diameters of balls do not exceed 5 millimeters and the diameters of agitating disks are between 70 and 90 percent of internal diameter of the vessel.
Inventors
- 👤 Jan Kaspar
- 👤 Vladislav Bicik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:14
CPC Classifications
B; B02; B02C; B02C17/00; B02C17/16
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
141 words
Apparatus for comminuting and dispersing solid particles to form a mass of finely comminuted solid material, said apparatus comprising a vessel having an internal chamber provided with inlet means for admission of solid particles and outlet means for evacuation of comminuted material; agitating means comprising a drive shaft extending into said chamber and at least one substantially disk-shaped agitating member provided on said drive shaft in the interior of said vessel; a supply of discretE dispersing elements in said chamber, said elements being arranged to move in response to rotation of said agitating means to thereby convert solid particles admitted through said inlet means into finely comminuted material; a source of compressed gas; and second inlet means for admitting gas from said source into said chamber so that the thus admitted gas carries comminuted material toward and into said outlet means.
Claim 2
Dependent Claim
141 words
Apparatus for comminuting and dispersing solid particles to form a mass of finely comminuted solid material, said apparatus comprising a vessel having an internal chamber provided with inlet means for admission of solid particles and outlet means for evacuation of comminuted material; agitating means comprising a drive shaft extending into said chamber and at least one substantially disk-shaped agitating member provided on said drive shaft in the interior of said vessel; a supply of discretE dispersing elements in said chamber, said elements being arranged to move in response to rotation of said agitating means to thereby convert solid particles admitted through said inlet means into finely comminuted material; a source of compressed gas; and second inlet means for admitting gas from said source into said chamber so that the thus admitted gas carries comminuted material toward and into said outlet means.
Claim 3
Dependent Claim
23 words
Apparatus as defined in claim 1, wherein said vessel comprises a cylindrical internal surface and wherein said shaft is coaxial with said vessel.
Claim 4
Dependent Claim
26 words
Apparatus as defined in claim 2, wherein the diameter of said disk-shaped agitating member is between 70 and 90 percent of the diameter of said chamber.
Claim 5
Dependent Claim
32 words
Apparatus as defined in claim 2, wherein the angle of inclination of the common axis of said shaft and said vessel with reference to a horizontal plane does not exceed 45 degrees.
Claim 6
Dependent Claim
43 words
Apparatus as defined in claim 1, wherein said agitating means comprises a plurality of agitating members spaced from each other in the axial direction of said shaft by distances corresponding to between 20 and 50 percent of the diameter of an agitating member.
Claim 7
Dependent Claim
22 words
Apparatus as defined in claim 1, wherein said outlet means is arranged to discharge comminuted material and gases upwardly from said chamber.
Claim 8
Dependent Claim
24 words
Apparatus as defined in claim 1, wherein the maximum dimensions of said dispersing elements are in the range of between 0.1 and 5 millimeters.
Claim 9
Dependent Claim
27 words
Apparatus as defined in claim 1, further comprising confining means for retaining the dispersing elements and solid particles whose size exceeds a predetermined value in said chamber.
Claim 10
Dependent Claim
20 words
Apparatus as defined in claim 8, wherein said confining means comprises a filter in the region of said outlet means.
References Cited (Backward Citations)
GB380298A
Cited
US3223336A
Cited
US3243128A
Cited
US3337140A
Cited
US3311310A
Cited
US3486705A
Cited
US3458144A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-08-08 | 1976-02-07 | 1976-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-08 | 1980-02-07 | 1980-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-08 | 1984-02-07 | 1984-08-08 | $7700.00 | Window Closed / Lapsed |