US2749928A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for controlling the gravity discharge of desliming cones
Assignee: Individual
•
Filing: 1953-02-19
•
Granted: 1956-06-12
•
Expires: 1973-02-19
Abstract
No abstract record available.
Inventors
- 👤 Dunn William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 04:17
CPC Classifications
D; D21; D21G; D21G9/00; D21G9/0009; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2499; Y10T137/2506
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
APPARATUS FOR THE AUTOMATIC CONTROL OF THE GRAVITY DISCHARGE OF SETTLED MATERIALS IN DESLIMING CONES AND THE LIKE COMPRISING, AN OUTLET ORIFICE ON SAID CONE OF INSUFFICIENT DIAMETER TO PASS THE SETTLED MATERIALS AT THE DESIRED RATE, A PIPE EXTENDING INTO THE CONE AND TERMINATING ADJACENT SAID OUTLET ORIFICE, MEANS FOR SUPPLYING WATER THROUGH SAID PIPE UNDER A PREDETERMINED CONSTANT HEAD OF PRESSURE AND MEANS FOR APPLYING DRAG PRODUCED BY DOWNWARD MOVEMENT OF SETTLED MATERIALS WITHIN SAID CONE TO REDUCE THE VOLUME OF WATER DELIVERED BY SAID PIPE WHEN THE DRAG INCREASES AND VICE VERSA.
Claim 2
Dependent Claim
95 words
APPARATUS FOR THE AUTOMATIC CONTROL OF THE GRAVITY DISCHARGE OF SETTLED MATERIALS IN DESLIMING CONES AND THE LIKE COMPRISING, AN OUTLET ORIFICE ON SAID CONE OF INSUFFICIENT DIAMETER TO PASS THE SETTLED MATERIALS AT THE DESIRED RATE, A PIPE EXTENDING INTO THE CONE AND TERMINATING ADJACENT SAID OUTLET ORIFICE, MEANS FOR SUPPLYING WATER THROUGH SAID PIPE UNDER A PREDETERMINED CONSTANT HEAD OF PRESSURE AND MEANS FOR APPLYING DRAG PRODUCED BY DOWNWARD MOVEMENT OF SETTLED MATERIALS WITHIN SAID CONE TO REDUCE THE VOLUME OF WATER DELIVERED BY SAID PIPE WHEN THE DRAG INCREASES AND VICE VERSA.
References Cited (Backward Citations)
US353775A
Cited
FR742296A
Cited
US1118614A
Cited
GB191418791A
Cited
US1230537A
Cited
US1640029A
Cited
FR839703A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-06-12 | 1959-12-12 | 1960-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-12 | 1963-12-12 | 1964-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-12 | 1967-12-12 | 1968-06-12 | $7700.00 | Window Closed / Lapsed |