US3231146A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Controlled rate discharge device
Assignee: Simpson Herbert Corp
•
Filing: 1964-04-02
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Granted: 1966-01-25
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Expires: 1984-04-02
Abstract
No abstract record available.
Inventors
- 👤 Elbert C Troy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:05
CPC Classifications
B; B22; B22C; B22C5/00; B22C5/04; B22C5/0409; B22C5/0422; B22C5/0427; B02; B02C; B02C15/00; B02C15/14; B02C23/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
IN COMBINATION WITH A MATERIAL CONTAINING CHAMBER HAVING A DISCHARGE OPENING IN A WALL THEREOF, APPARATUS FOR CONTROLLING THE DISCHARGE OF MATERIAL THROUGH SAID OPENING COMPRISING DOOR MEANS FACING SAID OPENING AND EXTENDING UPWARDLY AND OUTWARDLY FROM SAID WALL, SAID DOOR MEANS HAVING A LOWER EDGE PORTION ADAPTED TO CLOSELY FACE A LOWER EDGE OF SAID OPENING AND EXTENDING TRANSVERSELY BEYOND SIDE EDGES OF SAID OPENING, MEANS PIVOTALLY MOUNTING SAID DOOR MEANS ON SAID CHAMBER FOR
Claim 2
Dependent Claim
76 words
IN COMBINATION WITH A MATERIAL CONTAINING CHAMBER HAVING A DISCHARGE OPENING IN A WALL THEREOF, APPARATUS FOR CONTROLLING THE DISCHARGE OF MATERIAL THROUGH SAID OPENING COMPRISING DOOR MEANS FACING SAID OPENING AND EXTENDING UPWARDLY AND OUTWARDLY FROM SAID WALL, SAID DOOR MEANS HAVING A LOWER EDGE PORTION ADAPTED TO CLOSELY FACE A LOWER EDGE OF SAID OPENING AND EXTENDING TRANSVERSELY BEYOND SIDE EDGES OF SAID OPENING, MEANS PIVOTALLY MOUNTING SAID DOOR MEANS ON SAID CHAMBER FOR
References Cited (Backward Citations)
US2368114A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-24 | 1969-07-26 | 1970-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-24 | 1973-07-26 | 1974-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-24 | 1977-07-26 | 1978-01-25 | $7700.00 | Window Closed / Lapsed |