US2680084A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic conveying
Assignee: REDDING Manufacturing Co Inc
•
Filing: 1948-07-19
•
Granted: 1954-06-01
•
Expires: 1968-07-19
Abstract
No abstract record available.
Inventors
- 👤 Albert O Ryan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:55
CPC Classifications
F; F26; F26B; F26B11/00; F26B11/02; F26B11/04; B; B01; B01J; B01J19/00; B01J19/28; B08; B08B; B08B3/00; B08B3/04; B08B3/041; B08B3/042; D; D01; D01D; D01D10/00; D01D10/04; D01D10/0436; D01D10/0481; B01J2219/00; B01J2219/00049; B01J2219/00051; B01J2219/00074; B01J2219/00087; B01J2219/00094; B01J2219/00164; B01J2219/00189; B01J2219/18; B01J2219/187
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
THE METHOD OF ADVANCING MATERIAL THROUGH AN EXTENDED PATH WHILE MOVING A RELATIVELY SHORT DISTANCE LONGITUDINALLY, WHICH COMPRISES, CAUSING A CONVEYING LIQUID TO TRAVEL DOWN AN INCLINED CYLINDER WITH VISCOUS FLOW WHILE ROTATING THE CYLINDER TO CAUSE SAID LIQUID TO BE DISPOSED AS A LAYER OVER THE INTERIOR SURFACE OF THE CYLINDER, AND TO DESCRIBE A SPIRAL PATH WHILE MOVING DOWN THE CYLINDER, AND UTILIZING SAID SPIRALLY AND NON-TURBULENTLY MOVING LIQUID LAYER TO SUPPORT THE SAID MATERIAL AND CONVEY IT THROUGH SAID EXTENDED PATH.
Claim 2
Independent Claim
84 words
THE METHOD OF ADVANCING MATERIAL THROUGH AN EXTENDED PATH WHILE MOVING A RELATIVELY SHORT DISTANCE LONGITUDINALLY, WHICH COMPRISES, CAUSING A CONVEYING LIQUID TO TRAVEL DOWN AN INCLINED CYLINDER WITH VISCOUS FLOW WHILE ROTATING THE CYLINDER TO CAUSE SAID LIQUID TO BE DISPOSED AS A LAYER OVER THE INTERIOR SURFACE OF THE CYLINDER, AND TO DESCRIBE A SPIRAL PATH WHILE MOVING DOWN THE CYLINDER, AND UTILIZING SAID SPIRALLY AND NON-TURBULENTLY MOVING LIQUID LAYER TO SUPPORT THE SAID MATERIAL AND CONVEY IT THROUGH SAID EXTENDED PATH.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-05-31 | 1957-11-30 | 1958-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-31 | 1961-11-30 | 1962-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-31 | 1965-11-30 | 1966-06-01 | $7700.00 | Window Closed / Lapsed |