US3241730A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Operating means for sliding gate
Assignee: Procor Ltd
•
Filing: 1964-11-12
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Granted: 1966-03-22
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Expires: 1984-11-12
Abstract
No abstract record available.
Inventors
- 👤 George B Dorey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:39
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/44; F16K31/52; F16K31/523; B; B65; B65D; B65D90/00; B65D90/54; B65D90/58; B65D90/587
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
IN A HOPPER HAVING AN OPENING FOR DISCHARGE OF LADING AND A SLIDING CLOSING FOR THE OPENING, THE HEREIN DESCRIBED IMPROVED MEANS FOR MOVING THE GATE IN AN OPENING AND A CLOSING DIRECTION INCLUDING: (A) A ROTATABLE SHAFT, (B) WINDING LINKAGE MECHANISM CONNECTED TO THE SHAFT AND GATE AND FOLDABLE TO HAVE SEATING RELATION WITH THE SHAFT FOR OPENING MOVEMENT OF THE GATE, (C) A DETENT ON THE SHAFT ENGAGEABLE WITH THE GATE TO ARREST OPENING MOVEMENT THEREOF, AND (D) SAID DETENT BEING ADAPTED TO ENGAGE THE GATE FOR IMPARTING INITIAL CLOSING MOVEMENT THEREOF.
Claim 2
Dependent Claim
94 words
IN A HOPPER HAVING AN OPENING FOR DISCHARGE OF LADING AND A SLIDING CLOSING FOR THE OPENING, THE HEREIN DESCRIBED IMPROVED MEANS FOR MOVING THE GATE IN AN OPENING AND A CLOSING DIRECTION INCLUDING: (A) A ROTATABLE SHAFT, (B) WINDING LINKAGE MECHANISM CONNECTED TO THE SHAFT AND GATE AND FOLDABLE TO HAVE SEATING RELATION WITH THE SHAFT FOR OPENING MOVEMENT OF THE GATE, (C) A DETENT ON THE SHAFT ENGAGEABLE WITH THE GATE TO ARREST OPENING MOVEMENT THEREOF, AND (D) SAID DETENT BEING ADAPTED TO ENGAGE THE GATE FOR IMPARTING INITIAL CLOSING MOVEMENT THEREOF.
References Cited (Backward Citations)
US2512451A
Cited
US3110270A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-21 | 1969-09-20 | 1970-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-21 | 1973-09-20 | 1974-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-21 | 1977-09-20 | 1978-03-22 | $7700.00 | Window Closed / Lapsed |