US2745484A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous density control of a liquid
Assignee: Blaw Knox Co
•
Filing: 1950-03-27
•
Granted: 1956-05-15
•
Expires: 1970-03-27
Abstract
No abstract record available.
Inventors
- 👤 Albert W Eckstrom
- 👤 Hill Graham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:00
CPC Classifications
A; A23; A23L; A23L2/00; A23L2/02; A23L2/08; A23L2/10; B; B01; B01D; B01D1/00; B01D1/0082; F; F16; F16L; F16L55/00; F16L55/04; F16L55/045; F16L55/05; F16L55/052; Y; Y10; Y10S; Y10S203/00; Y10S203/19
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
167 words
THE METHOD OF CONTINUOUSLY EVAPORATING A LIQUID TO A SELECTED AND UNIFORM SPECIFIC GRAVITY, WHICH COMPRISES HEATING AND RECIRCULATING A BODY OF LIQUID TO BE CONCENTRATED IN A CONFINED SPACE IN A SELECTED, CIRCULATING PATTERN THROUGH A SERIES OF ZONES IN SUCCESSION, REMOVING VAPORS FROM SAID CIRCULATING BODY IN ONE ZONE OF SAID SPACE AND CONDENSING THEM AS A SEPARATE BODY OUTSIDE OF SAID SPACE, REMOVING PARTS OF SAID CIRCULATING BODY, AS THE CONCENTRATED LIQUID ONE FOR SAMPLING AND ONE FOR PERMANENT REMOVAL, FROM THE PORTION OF SAID CIRCULATING BODY IN A SUCCESSIVE ZONE AFTER REMOVAL OF VAPORS THEREFROM, ADDING FRESH LIQUID TO BE CONCENTRATED TO SAID CIRCULATING BODY AFTER REMOVAL OF SAID CONCENTRATED LIQUID IN SAID SUCCESSIVE ZONE BEFORE SAID BODY AGAIN REACHES SAID ONE ZONE, CONTINUOUSLY WEIGHTING A MOVING AND FRESH SAMPLE OF THE REMOVED CONCENTRATED LIQUID, CONTROLLING A SENSITIVE PILOT MEDIUM BY THE DEVIATIONS IN THE WEIGHT OF SAID SAMPLE, AND VARYING THE FLOW OF LIQUID OUT OF SAID BODY BY SAID PILOT MEDIUM.
Claim 2
Independent Claim
167 words
THE METHOD OF CONTINUOUSLY EVAPORATING A LIQUID TO A SELECTED AND UNIFORM SPECIFIC GRAVITY, WHICH COMPRISES HEATING AND RECIRCULATING A BODY OF LIQUID TO BE CONCENTRATED IN A CONFINED SPACE IN A SELECTED, CIRCULATING PATTERN THROUGH A SERIES OF ZONES IN SUCCESSION, REMOVING VAPORS FROM SAID CIRCULATING BODY IN ONE ZONE OF SAID SPACE AND CONDENSING THEM AS A SEPARATE BODY OUTSIDE OF SAID SPACE, REMOVING PARTS OF SAID CIRCULATING BODY, AS THE CONCENTRATED LIQUID ONE FOR SAMPLING AND ONE FOR PERMANENT REMOVAL, FROM THE PORTION OF SAID CIRCULATING BODY IN A SUCCESSIVE ZONE AFTER REMOVAL OF VAPORS THEREFROM, ADDING FRESH LIQUID TO BE CONCENTRATED TO SAID CIRCULATING BODY AFTER REMOVAL OF SAID CONCENTRATED LIQUID IN SAID SUCCESSIVE ZONE BEFORE SAID BODY AGAIN REACHES SAID ONE ZONE, CONTINUOUSLY WEIGHTING A MOVING AND FRESH SAMPLE OF THE REMOVED CONCENTRATED LIQUID, CONTROLLING A SENSITIVE PILOT MEDIUM BY THE DEVIATIONS IN THE WEIGHT OF SAID SAMPLE, AND VARYING THE FLOW OF LIQUID OUT OF SAID BODY BY SAID PILOT MEDIUM.
References Cited (Backward Citations)
US559857A
Cited
US881351A
Cited
CH82473A
Cited
US1575643A
Cited
US1511604A
Cited
US1943106A
Cited
US2040357A
Cited
US2015680A
Cited
US2073825A
Cited
US2140942A
Cited
US2294501A
Cited
US2343464A
Cited
US2361885A
Cited
US2367215A
Cited
US2298112A
Cited
US2409768A
Cited
US2453210A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-15 | 1959-11-14 | 1960-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-15 | 1963-11-14 | 1964-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-15 | 1967-11-14 | 1968-05-15 | $7700.00 | Window Closed / Lapsed |