Patent US3206979A successfully refreshed from Google Patents.
US3206979A
Expired / Lapsed
US
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Apparatus for measuring material level
Assignee: Automation Products Inc
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Filing: 1963-06-17
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Granted: 1965-09-21
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Expires: 1983-06-17
Abstract
No abstract record available.
Inventors
- 👤 William B Banks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:57
CPC Classifications
G; G01; G01F; G01F23/00; G01F23/22; G01F23/28; G01F23/296; G01F23/2966; G01F23/2967; G01F23/0023; G01N; G01N2291/00; G01N2291/02; G01N2291/028; G01N2291/02836
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
169 words
IN AN APPARATUS FOR MEASURING MATERIAL LEVEL BY MEANS OF A VIBRATING ELEMENT WHICH IS RESPONSIVE TO CONTACT WITH THE MATERIAL, A CONTROL CABLE CONNECTED TO AND SUPPORTING THE VIBRATING ELEMENT, MEASURING MEANS CONNECTED TO THE CONTROL CABLE MOVING IN RESPONSE TO THE MOVEMENT OF THE CONTROL CABLE FOR MEASURING THE POSITION OF THE VIBRATING ELEMENT, A CONTROL WHEEL CONNECTED TO THE CONTROL CABLE FOR RAISING AND LOWERING THE CABLE AND VIBRATING ELEMENT, A POSITIONING MOTOR CONNECTED TO THE CONTROL WHEEL FOR ROTATING THE CONTROL WHEEL, AND A CONTROL CIRCUIT CONNECTED TO THE VIBRATING ELEMENT AND TO THE POSITIONING MOTOR FOR OSCILLATING THE VIBRATING ELEMENT ABOVE AND BELOW WHATEVER LEVEL THE MATERIAL RESIDES, THE IMPROVEMENT IN A MECHANISM FOR REDUCING WEAR ON THE MOTOR COMPRISING: AN OSCILLATING CAM PERIODICALLY RAISING AND LOWERING THE CONTROL CABLE AND VIBRATING ELEMENT, MEAND FOR OSCILLATING SAID CAM AT A RATE GREATER THAN THE OSCILLATING RATE OF SAID CONTROL CIRCUIT WHEREBY THE OSCILLATION OF THE VIBRATING ELEMENT WILL BE CONTROLLED BY THE OSCILLATING CAM.
Claim 2
Dependent Claim
169 words
IN AN APPARATUS FOR MEASURING MATERIAL LEVEL BY MEANS OF A VIBRATING ELEMENT WHICH IS RESPONSIVE TO CONTACT WITH THE MATERIAL, A CONTROL CABLE CONNECTED TO AND SUPPORTING THE VIBRATING ELEMENT, MEASURING MEANS CONNECTED TO THE CONTROL CABLE MOVING IN RESPONSE TO THE MOVEMENT OF THE CONTROL CABLE FOR MEASURING THE POSITION OF THE VIBRATING ELEMENT, A CONTROL WHEEL CONNECTED TO THE CONTROL CABLE FOR RAISING AND LOWERING THE CABLE AND VIBRATING ELEMENT, A POSITIONING MOTOR CONNECTED TO THE CONTROL WHEEL FOR ROTATING THE CONTROL WHEEL, AND A CONTROL CIRCUIT CONNECTED TO THE VIBRATING ELEMENT AND TO THE POSITIONING MOTOR FOR OSCILLATING THE VIBRATING ELEMENT ABOVE AND BELOW WHATEVER LEVEL THE MATERIAL RESIDES, THE IMPROVEMENT IN A MECHANISM FOR REDUCING WEAR ON THE MOTOR COMPRISING: AN OSCILLATING CAM PERIODICALLY RAISING AND LOWERING THE CONTROL CABLE AND VIBRATING ELEMENT, MEAND FOR OSCILLATING SAID CAM AT A RATE GREATER THAN THE OSCILLATING RATE OF SAID CONTROL CIRCUIT WHEREBY THE OSCILLATION OF THE VIBRATING ELEMENT WILL BE CONTROLLED BY THE OSCILLATING CAM.
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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) | 1968-09-20 | 1969-03-22 | 1969-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-20 | 1973-03-22 | 1973-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-20 | 1977-03-22 | 1977-09-21 | $7700.00 | Window Closed / Lapsed |