US3195342A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Friction measuring apparatus
Assignee: Individual
•
Filing: 1961-08-11
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Granted: 1965-07-20
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Expires: 1981-08-11
Abstract
No abstract record available.
Inventors
- 👤 Everhard H B Bartelink
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:21
CPC Classifications
G; G01; G01N; G01N19/00; G01N19/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
176 words
MEANS FOR MEASURING THE FRICTION BETWEEN A WHEEL AND A SUPPORTING SURFACE COMPRISING A TABLE MOUNTED ON A PAIR OF WHEELS, MEANS FOR DRIVING ONE OF SAID WHEELS AND THEREBY MOVING SAID TABLE AWAY FROM A PREDETERMINED POSITION, THE OTHER OF SAID WHEELS BEING AN IDLER WHEEL ROTATABLE BY FRICTIONAL ENGAGEMENT WITH ITS SUPPORTING SURFACE AND MOVEMENT OF SAID TABLE, MEANS FOR ENERGIZING SAID DRIVING MEANS, MEANS FOR RETARDING MOVEMENT OF SAID TABLE IN INCREASING AMOUNT WITH MOVEMENT OF SAID TABLE AWAY FROM SAID PREDETERMINED POSITION, MEANS CONNECTED TO SAID WHEELS FOR COMPARING THE RELATIVE SPEEDS OF ROTATION OF SAID WHEELS, MEANS CONTROLLED BY SAID COMPRISING MEANS AND CONNECTED TO SAID ENERGIZING MEANS FOR STOPPING SAID DRIVING MEANS WHEN SAID ONE WHEEL SLIPS WITH RESPECT TO ITS SUPPORTING SURFACE AND THEREBY HAS A DIFFERENT SPEED OF ROTATION THAN SAID OTHER WHEEL, AND MEANS CONNECTED TO AND DRIVEN BY SAID DRIVING MEANS FOR PROVIDING A VOLTAGE WHICH IS RELATED IN MAGNITUDE TO THE AMOUNT OF ROTATION OF SAID WHEELS PRIOR TO THE STOPPING OF SAID DRIVING MEANS.
Claim 2
Dependent Claim
176 words
MEANS FOR MEASURING THE FRICTION BETWEEN A WHEEL AND A SUPPORTING SURFACE COMPRISING A TABLE MOUNTED ON A PAIR OF WHEELS, MEANS FOR DRIVING ONE OF SAID WHEELS AND THEREBY MOVING SAID TABLE AWAY FROM A PREDETERMINED POSITION, THE OTHER OF SAID WHEELS BEING AN IDLER WHEEL ROTATABLE BY FRICTIONAL ENGAGEMENT WITH ITS SUPPORTING SURFACE AND MOVEMENT OF SAID TABLE, MEANS FOR ENERGIZING SAID DRIVING MEANS, MEANS FOR RETARDING MOVEMENT OF SAID TABLE IN INCREASING AMOUNT WITH MOVEMENT OF SAID TABLE AWAY FROM SAID PREDETERMINED POSITION, MEANS CONNECTED TO SAID WHEELS FOR COMPARING THE RELATIVE SPEEDS OF ROTATION OF SAID WHEELS, MEANS CONTROLLED BY SAID COMPRISING MEANS AND CONNECTED TO SAID ENERGIZING MEANS FOR STOPPING SAID DRIVING MEANS WHEN SAID ONE WHEEL SLIPS WITH RESPECT TO ITS SUPPORTING SURFACE AND THEREBY HAS A DIFFERENT SPEED OF ROTATION THAN SAID OTHER WHEEL, AND MEANS CONNECTED TO AND DRIVEN BY SAID DRIVING MEANS FOR PROVIDING A VOLTAGE WHICH IS RELATED IN MAGNITUDE TO THE AMOUNT OF ROTATION OF SAID WHEELS PRIOR TO THE STOPPING OF SAID DRIVING MEANS.
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) | 1968-07-19 | 1969-01-18 | 1969-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-19 | 1973-01-18 | 1973-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-19 | 1977-01-18 | 1977-07-20 | $7700.00 | Window Closed / Lapsed |