US3174807A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumatic and gravity hopper discharge arrangement
Assignee: Pullman Standard Inc
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Filing: 1962-11-01
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Granted: 1965-03-23
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Expires: 1982-11-01
Abstract
No abstract record available.
Inventors
- 👤 Franklin P Adler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:09
CPC Classifications
B; B61; B61D; B61D5/00; B61D5/002; B61D5/004; B60; B60P; B60P1/00; B60P1/58; B61D7/00; B61D7/14; B61D7/16; B61D7/24; B61D7/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
IN A HOPPER CAR FOR TRANSPORTING PULVERULENT MATERIAL AND HAVING A SUBSTANTIALLY V-SHAPED DISCHARGE SECTION, AND ARRANGEMENT FOR SELECTIVELY DISCHARGING SAID MATERIAL PNEUMATICALLY OR BY GRAVITY COMPRISING AN OPENING FORMED ALONG ONE OF THE SIDES OF SAID V-SHAPED DISCHARGE SECTION, A GATE SLIDABLE ON SAID ONE SIDE FOR CLOSING AND OPENING SAID OPENING, A COVER MOVABLY MOUNTED ON SAID ONE SIDE OVER SAID OPENING AND GATE AND INCLUDING A TROUGH OVERLYING SAID GATE FOR RECEIVING MATERIAL PASSING THROUGH SAID OPENING WHEN SAID GATE IS OPENED, AND CONDUIT MEANS ON SAID HOUSING ALIGNED WITH SAID TROUGH AND ADAPTED TO BE CONNECTED TO A PNEUMATIC DISCHARGE SYSTEM FOR PNEUMATICALLY UNLOADING SAID MATERIAL.
Claim 2
Dependent Claim
110 words
IN A HOPPER CAR FOR TRANSPORTING PULVERULENT MATERIAL AND HAVING A SUBSTANTIALLY V-SHAPED DISCHARGE SECTION, AND ARRANGEMENT FOR SELECTIVELY DISCHARGING SAID MATERIAL PNEUMATICALLY OR BY GRAVITY COMPRISING AN OPENING FORMED ALONG ONE OF THE SIDES OF SAID V-SHAPED DISCHARGE SECTION, A GATE SLIDABLE ON SAID ONE SIDE FOR CLOSING AND OPENING SAID OPENING, A COVER MOVABLY MOUNTED ON SAID ONE SIDE OVER SAID OPENING AND GATE AND INCLUDING A TROUGH OVERLYING SAID GATE FOR RECEIVING MATERIAL PASSING THROUGH SAID OPENING WHEN SAID GATE IS OPENED, AND CONDUIT MEANS ON SAID HOUSING ALIGNED WITH SAID TROUGH AND ADAPTED TO BE CONNECTED TO A PNEUMATIC DISCHARGE SYSTEM FOR PNEUMATICALLY UNLOADING SAID MATERIAL.
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) | 1968-03-22 | 1968-09-21 | 1969-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-22 | 1972-09-21 | 1973-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-22 | 1976-09-21 | 1977-03-23 | $7700.00 | Window Closed / Lapsed |