Patent US2710455A successfully refreshed from Google Patents.
US2710455A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic control for cotton processing equipment
Assignee: John E Mitchell Co
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Filing: 1951-08-20
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Granted: 1955-06-14
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Expires: 1971-08-20
Abstract
No abstract record available.
Inventors
- 👤 Jr William P Freeman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:50
CPC Classifications
D; D01; D01G; D01G31/00; D01G31/006
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
150 words
A DEVICE OF THE TYPE DESCRIBED, COMPRISING MEANS FOR PROCESSING RAW COTTON; MEANS FOR CARRYING AIR TO FLOW THROUGH THE PROCESSING MEANS FOR CARRYING THE COTTON THERETHROUGH; SEPARATE MEANS FOR INTRODUCING RAW COTTON INTO THE AIR STREAM FLOWING THROUGH THE PROCESSING MEANS INCLUDING A SUCTION FAN, A PIPE CONNECTED TO THE SUCTION FAN, AND A DAMPER VALVE IN THE PIPE FOR CONTROLLING THE FLOW OF AIR TO THE SUCTION FAN, SAID SUCTION MEANS BEING AIR SEALED FROM SAID AIR FLOW CAUSING MEANS; A PRESSURE DIFFERENTIAL SWITCH CONNECTED TO DIFFERENT PARTS OF THE PROCESSING MEANS WHICH HAVE A PREDETERMINED PRESSURE DIFFERENTIAL ON NORMAL OPERATION OF THE PROCESSING MEANS, THE SWITCH BECOMING OPERATIVE WHEN THE PRESSURE DIFFERENTIAL INCREASES A PREDETERMINED AMOUNT ABOVE NORMAL; AND MEANS OPERATIVELY CONNECTED TO SAID SWITCH FOR ACTUATING THE DAMPER VALVE TO STOP THE FLOW OF AIR TO THE POSITION FAN UPON OPERATION OF THE PRESSURE DIFFERENTIAL SWITCH.
Claim 2
Independent Claim
150 words
A DEVICE OF THE TYPE DESCRIBED, COMPRISING MEANS FOR PROCESSING RAW COTTON; MEANS FOR CARRYING AIR TO FLOW THROUGH THE PROCESSING MEANS FOR CARRYING THE COTTON THERETHROUGH; SEPARATE MEANS FOR INTRODUCING RAW COTTON INTO THE AIR STREAM FLOWING THROUGH THE PROCESSING MEANS INCLUDING A SUCTION FAN, A PIPE CONNECTED TO THE SUCTION FAN, AND A DAMPER VALVE IN THE PIPE FOR CONTROLLING THE FLOW OF AIR TO THE SUCTION FAN, SAID SUCTION MEANS BEING AIR SEALED FROM SAID AIR FLOW CAUSING MEANS; A PRESSURE DIFFERENTIAL SWITCH CONNECTED TO DIFFERENT PARTS OF THE PROCESSING MEANS WHICH HAVE A PREDETERMINED PRESSURE DIFFERENTIAL ON NORMAL OPERATION OF THE PROCESSING MEANS, THE SWITCH BECOMING OPERATIVE WHEN THE PRESSURE DIFFERENTIAL INCREASES A PREDETERMINED AMOUNT ABOVE NORMAL; AND MEANS OPERATIVELY CONNECTED TO SAID SWITCH FOR ACTUATING THE DAMPER VALVE TO STOP THE FLOW OF AIR TO THE POSITION FAN UPON OPERATION OF THE PRESSURE DIFFERENTIAL SWITCH.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-06-13 | 1958-12-13 | 1959-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-06-13 | 1962-12-13 | 1963-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-06-13 | 1966-12-13 | 1967-06-14 | $7700.00 | Window Closed / Lapsed |