Patent US3557864A successfully refreshed from Google Patents.
US3557864A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for the production of grandular solids from dilute solutions or suspensions
Assignee: Knapsack AG
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Filing: 1968-12-03
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Granted: 1971-01-26
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Expires: 1988-12-03
Abstract
Abstract Apparatus for the production of granular solids from dilute solutions or suspensions, in which the solids are dissolved by concentrating or thickening them by means of a heat carrier in a vaporization zone so as to obtain a concentrate, precipitating the solid, and atomizing the concentrate in a spray zone wherein the gas issuing from the spray zone is used as the heat carrier in the vaporization zone.
Inventors
- 👤 Leo Berg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:16
CPC Classifications
C; C01; C01B; C01B25/00; C01B25/16; C01B25/26; C01B25/38; C01B25/40; C01B25/41; C01B25/412; C01B25/414; B; B01; B01D; B01D1/00; B01D1/14; B01D9/00; B01D9/0018; B01D9/0031; B01D9/0059; B01J; B01J2/00; B01J2/02; B01J2/04
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
53 words
The apparatus of claim 1, wherein said first pipeline provides means for discharging dilute solution issuing through the first pipeline helically along the inside wall of the vaporization tower, and said second pipeline provides means for delivering dilute solution issuing through the branch pipes to the nozzles for injection into the vaporization tower.
Claim 2
Dependent Claim
103 words
The apparatus of claim 1, wherein the separator''s gas discharge line is arranged so as to project into the scrubbing tower comprising two scrubbing zones, of which the upper scrubbing zone has arranged upstream of it with respect to gas flow an upper scrubbing liquid receiver, a fresh scrubbing liquid feed line connecting the upper scrubbing liquid receiver with the upper scrubbing zone for providing scrubbing liquid thereto, and of which the lower scrubbing zone has an associated lower scrubbing liquid receiver, communicating through valve pipelines firstly with the upper scrubbing liquid receiver and secondly with the solution receiver below the vaporization tower.
Claim 3
Dependent Claim
34 words
4 The apparatus of claim 3 wherein a hot water container is provided, and the scrubbing liquid receivers are equipped with overflows which are arranged so as to project into the hot water container.
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) | 1974-01-25 | 1974-07-27 | 1975-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-25 | 1978-07-27 | 1979-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-25 | 1982-07-27 | 1983-01-26 | $7700.00 | Window Closed / Lapsed |