US3777912A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure flow discharge mechanism
Assignee: Individual
•
Filing: 1972-01-12
•
Granted: 1973-12-11
•
Expires: 1992-01-12
Abstract
Abstract An improved method of and means for effecting the discharge of commodities from hopper-type railroad tank cars. The hopper includes a discharge port, for removing the material, having a gas inlet positioned adjacent thereto. Rubber hoses are suspended over each hopper symmetrically about the transverse centerline and on the longitudinal centerline. The top ends of these hoses are fixed to air supply pipes and a structural support also holds the top rigid while the bottom ends of the hoses are free to whip. Air is passed through the rubber hose to effect a mechanical whipping action which knocks compacted material down into the hopper bottom.
Inventors
- 👤 R Deeks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:45
CPC Classifications
B; B65; B65D; B65D88/00; B65D88/54; B65D88/64; B65D88/70
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
227 words
A method for effecting the pressurized discharge and cleanout of material from hopper-type railroad cars including at least one hopper compartment having a material confining zone therein with a discharge port communicating with the lowermost extremity thereof, said compartment having pressurizing means associated therewith for accommodating the passage of pressurized gas into said material confining zone adjacent said discharge port; and a hose means, flexible over its entire length, vertically suspended into said material confining zone having a lower end positioned immediately above said discharge port and an upper end in fluid communication with pressurized gas supply pipes; said method comprising the steps of: a. passing pressurized gas through said pressurizing means into said car until a predetermined pressure is reached; b. opening said discharge port and unloading the material confined within the compartment while continuing to pass pressurized gas through said pressurizing means so as to maintain the pressure and cause ratholing of the confined material; c. closing off the passage of pressurized gas through said pressurizing means; and d. passing pressurized gas through said pressurized gas supply pipes and said hose means so as to simultaneously maintain said predetermined pressure in said car and cause universal movement of said hose means within said rathole with a shipping action to loosen the material compacted therearound, which permits the looseNed material to pass through said discharge port.
Claim 2
Independent Claim
227 words
A method for effecting the pressurized discharge and cleanout of material from hopper-type railroad cars including at least one hopper compartment having a material confining zone therein with a discharge port communicating with the lowermost extremity thereof, said compartment having pressurizing means associated therewith for accommodating the passage of pressurized gas into said material confining zone adjacent said discharge port; and a hose means, flexible over its entire length, vertically suspended into said material confining zone having a lower end positioned immediately above said discharge port and an upper end in fluid communication with pressurized gas supply pipes; said method comprising the steps of: a. passing pressurized gas through said pressurizing means into said car until a predetermined pressure is reached; b. opening said discharge port and unloading the material confined within the compartment while continuing to pass pressurized gas through said pressurizing means so as to maintain the pressure and cause ratholing of the confined material; c. closing off the passage of pressurized gas through said pressurizing means; and d. passing pressurized gas through said pressurized gas supply pipes and said hose means so as to simultaneously maintain said predetermined pressure in said car and cause universal movement of said hose means within said rathole with a shipping action to loosen the material compacted therearound, which permits the looseNed material to pass through said discharge port.
References Cited (Backward Citations)
US2115023A
Cited
US2501047A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-10 | 1977-06-11 | 1977-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-10 | 1981-06-11 | 1981-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-10 | 1985-06-11 | 1985-12-11 | $7700.00 | Window Closed / Lapsed |