US3303967A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Feedback control for a material handling system providing automatic overshoot correction
Assignee: Westinghouse Electric Corp
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Filing: 1965-09-28
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Granted: 1967-02-14
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Expires: 1985-09-28
Abstract
No abstract record available.
Inventors
- 👤 William A Munson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:03
CPC Classifications
C; C21; C21B; C21B7/00; C21B7/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
134 words
A FEEDBACK CONTROL FOR A MATERIAL HANDLING SYSTEM HAVING AT LEAST TWO FEEDERS FROM WHICH MATERIAL IS TRANSFERRED TO A CONVEYANCE DEVICE FOR MOVEMENT TO A DELIVERY POINT, SAID FEEDBACK CONTROL COMPRISING MEANS RESPONSIVE TO THE AMOUNT OF MATERIAL FLOW AND SPACED FROM THE FEEDERS ALONG THE DELIVERY PATH, MEANS PRESET FOR AN EXPECTED MATERIAL OVERSHOOT BASED ON THE NUMBER OF FEEDERS IN SERVICE AND RESPONSIVE TO SAID FLOW RESPONSIVE MEANS TO STOP THE FEEDERS WHEN THE TOTAL AMOUNT OF DETECTED MATERIAL FLOW REACHES A PREDETERMINED VALUE EQUAL TO THE DESIRED VALUE LESS THE PRESET OVERSHOOT VALUE, AND FEEDBACK MEANS RESPONSIVE TO A CHANGE IN THE NUMBER OF FEEDERS IN SERVICE FOR AUTOMATICALLY MODIFYING THE OPERATION OF SAID STOP MEANS SO AS TO CORRECT FOR THE RESULTANT CHANGE IN OVERSHOOT FROM THE EXPECTED VALUE.
Claim 2
Dependent Claim
134 words
A FEEDBACK CONTROL FOR A MATERIAL HANDLING SYSTEM HAVING AT LEAST TWO FEEDERS FROM WHICH MATERIAL IS TRANSFERRED TO A CONVEYANCE DEVICE FOR MOVEMENT TO A DELIVERY POINT, SAID FEEDBACK CONTROL COMPRISING MEANS RESPONSIVE TO THE AMOUNT OF MATERIAL FLOW AND SPACED FROM THE FEEDERS ALONG THE DELIVERY PATH, MEANS PRESET FOR AN EXPECTED MATERIAL OVERSHOOT BASED ON THE NUMBER OF FEEDERS IN SERVICE AND RESPONSIVE TO SAID FLOW RESPONSIVE MEANS TO STOP THE FEEDERS WHEN THE TOTAL AMOUNT OF DETECTED MATERIAL FLOW REACHES A PREDETERMINED VALUE EQUAL TO THE DESIRED VALUE LESS THE PRESET OVERSHOOT VALUE, AND FEEDBACK MEANS RESPONSIVE TO A CHANGE IN THE NUMBER OF FEEDERS IN SERVICE FOR AUTOMATICALLY MODIFYING THE OPERATION OF SAID STOP MEANS SO AS TO CORRECT FOR THE RESULTANT CHANGE IN OVERSHOOT FROM THE EXPECTED VALUE.
References Cited (Backward Citations)
US3130868A
Cited
US3130867A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-13 | 1970-08-15 | 1971-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-13 | 1974-08-15 | 1975-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-13 | 1978-08-15 | 1979-02-14 | $7700.00 | Window Closed / Lapsed |