US3250287A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Moisture controller for continuous mixing
Assignee: Hartley Controls Corp
•
Filing: 1962-07-02
•
Granted: 1966-05-10
•
Expires: 1982-07-02
Abstract
No abstract record available.
Inventors
- 👤 Hartley Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:20
CPC Classifications
G; G05; G05D; G05D11/00; G05D11/02; G05D11/13; G05D11/135; B; B28; B28C; B28C7/00; B28C7/04; B28C7/0404; B28C7/0409; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2499; Y10T137/2506
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
162 words
APPARATUS FOR CONTROLLING THE ADDITION OF WATER TO FINELY DIVIDED GRANULAR MATERIAL UNDERGOING CONTINUOUS MOVEMENT THROUGH A MIXER, SAID APPARATUS COMPRISING: SOURCE OF WATER, A VALVE CONTROLLING WATER FLOW FROM SAID SOURCE TO SAID MATERIAL, VALVE REGULATING MECHANISM INCLUDING A REVERIBLE MOTOR AND MECHANISM DRIVEN BY THE MOTOR TO MOVE THE VALVE TOWARD OPEN OR CLOSED POSITION RESPECTIVELY IN ACCORDANCE TO THE DIRECTION OF MOTOR OPERATION, A MOISTURE SENSITIVE PROBE EXPOSED TO THE CONTINUOUSLY MOVING, FINELY DIVIDED GRANULAR MATERIAL, MOTOR ENERGIZING MEANS INCLUDING A COIL CONNECTED TO SAID MOISTURE SENSITIVE PROBE FOR SELECTIVELY TENDING TO DRIVE THE MOTOR IN ONE DIRECTION WHEN COIL ENERGIZATION IS INCREASED AND TENDING TO DRIVE THE MOTOR IN THE OPPOSITE DIRECTION WHEN COIL ENERGIZATION IS DECREASED, WHEREBY TO INCREASE OR DECREASE THE WATER FLOW THROUGH THE VALVE IN ACCORDANCE WITH CHANGES IN THE MOISTURE CONTENT OF THE MATERIAL AS SENSED BY THE PROBE, FOLLOWER MEANS RESPONSIVE TO MOTOR MOVEMENT TO DEENERGIZE THE MOTOR AFTER AN INCREMENTAL MOVEMENT
Claim 2
Dependent Claim
162 words
APPARATUS FOR CONTROLLING THE ADDITION OF WATER TO FINELY DIVIDED GRANULAR MATERIAL UNDERGOING CONTINUOUS MOVEMENT THROUGH A MIXER, SAID APPARATUS COMPRISING: SOURCE OF WATER, A VALVE CONTROLLING WATER FLOW FROM SAID SOURCE TO SAID MATERIAL, VALVE REGULATING MECHANISM INCLUDING A REVERIBLE MOTOR AND MECHANISM DRIVEN BY THE MOTOR TO MOVE THE VALVE TOWARD OPEN OR CLOSED POSITION RESPECTIVELY IN ACCORDANCE TO THE DIRECTION OF MOTOR OPERATION, A MOISTURE SENSITIVE PROBE EXPOSED TO THE CONTINUOUSLY MOVING, FINELY DIVIDED GRANULAR MATERIAL, MOTOR ENERGIZING MEANS INCLUDING A COIL CONNECTED TO SAID MOISTURE SENSITIVE PROBE FOR SELECTIVELY TENDING TO DRIVE THE MOTOR IN ONE DIRECTION WHEN COIL ENERGIZATION IS INCREASED AND TENDING TO DRIVE THE MOTOR IN THE OPPOSITE DIRECTION WHEN COIL ENERGIZATION IS DECREASED, WHEREBY TO INCREASE OR DECREASE THE WATER FLOW THROUGH THE VALVE IN ACCORDANCE WITH CHANGES IN THE MOISTURE CONTENT OF THE MATERIAL AS SENSED BY THE PROBE, FOLLOWER MEANS RESPONSIVE TO MOTOR MOVEMENT TO DEENERGIZE THE MOTOR AFTER AN INCREMENTAL MOVEMENT
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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) | 1969-05-09 | 1969-11-08 | 1970-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-09 | 1973-11-08 | 1974-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-09 | 1977-11-08 | 1978-05-10 | $7700.00 | Window Closed / Lapsed |