US3299698A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for measuring the load torque on drive systems, especially on conveying systems
Assignee: Individual
•
Filing: 1963-10-16
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Granted: 1967-01-24
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Expires: 1983-10-16
Abstract
No abstract record available.
Inventors
- 👤 Spiess Gustav
- 👤 Rufli Anton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:58
CPC Classifications
G; G01; G01L; G01L3/00; G01L3/02; G01L3/04; G01L3/10; B; B60; B60B; B60B11/00; B60B11/04; G01L5/00; G01L5/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
AN APPARATUS FOR MEASURING THE TORQUE OF A LOAD ON A SHAFT COMPRISING, IN COMBINATION: (A) DRIVE MEANS FOR ROTATING SAID SHAFT WHILE CONNECTED TO SAID LOAD; (B) SHUT-OFF MEANS FOR DEENERGIZING SAID DRIVE MEANS; AND (C) MEASURING MEANS FOR MEASURING THE RATE OF SPEED CHANGE OF SAID SHAFT IN RESPONSE TO SAID DEENERGIZING; SAID MEASURING MEANS INCLUDING (1) TACHOMETER MEANS CONNECTED TO SAID SHAFT FOR GENERATING A VOLTAGE PROPORTIONAL TO THE ROTARY SPEED OF THE SHAFT; (2) TWO CAPACITORS; (3) SWITCH MEANS FOR RESPECTIVELY CONNECTING SAID
Claim 2
Independent Claim
87 words
AN APPARATUS FOR MEASURING THE TORQUE OF A LOAD ON A SHAFT COMPRISING, IN COMBINATION: (A) DRIVE MEANS FOR ROTATING SAID SHAFT WHILE CONNECTED TO SAID LOAD; (B) SHUT-OFF MEANS FOR DEENERGIZING SAID DRIVE MEANS; AND (C) MEASURING MEANS FOR MEASURING THE RATE OF SPEED CHANGE OF SAID SHAFT IN RESPONSE TO SAID DEENERGIZING; SAID MEASURING MEANS INCLUDING (1) TACHOMETER MEANS CONNECTED TO SAID SHAFT FOR GENERATING A VOLTAGE PROPORTIONAL TO THE ROTARY SPEED OF THE SHAFT; (2) TWO CAPACITORS; (3) SWITCH MEANS FOR RESPECTIVELY CONNECTING SAID
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-23 | 1970-07-25 | 1971-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-23 | 1974-07-25 | 1975-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-23 | 1978-07-25 | 1979-01-24 | $7700.00 | Window Closed / Lapsed |