US3338635A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sparger type railroad car
Assignee: North American Car Corp
•
Filing: 1965-10-29
•
Granted: 1967-08-29
•
Expires: 1985-10-29
Abstract
No abstract record available.
Inventors
- 👤 Clarence J Koranda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:43
CPC Classifications
B; B61; B61D; B61D5/00; B61D5/008
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
THE METHOD OF UNLOADING DRY BULK COMMODITY, IN THE FORM OF A SOLUTION, FROM A HOPPER OF A RAILROAD CAR COMPRISING THE STEP OF INTRODUCING STREAMS OF LIQUID INTO THE HOPPER, ADJACENT THE BOTTOM OF THE HOPPER, INTO DIRECT CONTACT WITH THE COMMODITY FOR CREATING AN AGITATED, SWIRLING MASS AND DISSOLVING OF THE COMMODITY INTO SOLUTION, THE STEP OF CONTINUING THE INTRODUCTION OF LIQUID INTO THE HOPPER UNTIL THE LEVEL IS RAISED TO CAUSE THE SOLUTION TO OVERFLOW INTO THE UPPER END OF A STANDPIPE LOCATED WITHIN AND ADJACENT THE GEOMETRIC CENTER OF THE HOPPER FOR DISCHARGING THE SOLUTION FROM THE HOPPER, AND WHEN SUBSTANTIALLY ALL COMMODITY SOLIDS ARE DISSOLVED IN THE LIQUID THE STEP OF DISCONTINUING THE INTRODUCTION OF LIQUID INTO THE HOPPER AND THE STEP OF DISCHARGING THE SOLUTION REMAINING IN THE HOPPER THROUGH A DISCHARGE OUTLET AT THE BOTTOM OF THE HOPPER.
Claim 2
Independent Claim
145 words
THE METHOD OF UNLOADING DRY BULK COMMODITY, IN THE FORM OF A SOLUTION, FROM A HOPPER OF A RAILROAD CAR COMPRISING THE STEP OF INTRODUCING STREAMS OF LIQUID INTO THE HOPPER, ADJACENT THE BOTTOM OF THE HOPPER, INTO DIRECT CONTACT WITH THE COMMODITY FOR CREATING AN AGITATED, SWIRLING MASS AND DISSOLVING OF THE COMMODITY INTO SOLUTION, THE STEP OF CONTINUING THE INTRODUCTION OF LIQUID INTO THE HOPPER UNTIL THE LEVEL IS RAISED TO CAUSE THE SOLUTION TO OVERFLOW INTO THE UPPER END OF A STANDPIPE LOCATED WITHIN AND ADJACENT THE GEOMETRIC CENTER OF THE HOPPER FOR DISCHARGING THE SOLUTION FROM THE HOPPER, AND WHEN SUBSTANTIALLY ALL COMMODITY SOLIDS ARE DISSOLVED IN THE LIQUID THE STEP OF DISCONTINUING THE INTRODUCTION OF LIQUID INTO THE HOPPER AND THE STEP OF DISCHARGING THE SOLUTION REMAINING IN THE HOPPER THROUGH A DISCHARGE OUTLET AT THE BOTTOM OF THE HOPPER.
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) | 1970-08-28 | 1971-02-27 | 1971-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-28 | 1975-02-27 | 1975-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-28 | 1979-02-27 | 1979-08-29 | $7700.00 | Window Closed / Lapsed |