US3146618A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-range maximum load indicator
Assignee: Tinius Olsen Testing Machine Co
•
Filing: 1960-07-18
•
Granted: 1964-09-01
•
Expires: 1980-07-18
Abstract
No abstract record available.
Inventors
- 👤 William D Macgeorge
- 👤 John T Derr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:52
CPC Classifications
G; G01; G01N; G01N3/00; G01N3/02; G01N3/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
A DEVICE FOR INDICATING THE LOAD APPLIED TO A TEST SPECIMEN BY A TESTING MACHINE COMPRISING IN COMBINATION, (A) A LOAD CELL HAVING A STRAIN GAGE OUTPUT CIRCUIT RESPONSIVE TO THE LOAD BEING APPLIED TO A TEST SPECIMEN, (B) A LOAD INDICATING SCALE DEVICE, (C) A SERVO MOTOR MECHANICALLY COUPLED TO DRIVE SAID LOAD INDICATING SCALE DEVICE, (D) SWITCH MEANS, (E) A FIELD COIL OF SAID SERVO MOTOR ELECTRICALLY CONNECTABLE BY SAID SWITCH MEANS TO SAID STRAIN GAGE OUTPUT CIRCUIT, (F) A FIRST LOAD REGISTERING POTENTIOMETER MECHANICALLY COUPLED TO SAID SERVO MOTOR AND ELECTRICALLY CONNECTED TO SAID FIELD COIL OF SAID SERVO MOTOR, SAID FIRST LOAD REGISTERING POTENTIOMETER BEING POSITIONED BY SAID SERVO MOTOR IN RESPONSE TO SAID LOAD APPLIED TO SAID TEST SPECIMEN,
Claim 2
Independent Claim
124 words
A DEVICE FOR INDICATING THE LOAD APPLIED TO A TEST SPECIMEN BY A TESTING MACHINE COMPRISING IN COMBINATION, (A) A LOAD CELL HAVING A STRAIN GAGE OUTPUT CIRCUIT RESPONSIVE TO THE LOAD BEING APPLIED TO A TEST SPECIMEN, (B) A LOAD INDICATING SCALE DEVICE, (C) A SERVO MOTOR MECHANICALLY COUPLED TO DRIVE SAID LOAD INDICATING SCALE DEVICE, (D) SWITCH MEANS, (E) A FIELD COIL OF SAID SERVO MOTOR ELECTRICALLY CONNECTABLE BY SAID SWITCH MEANS TO SAID STRAIN GAGE OUTPUT CIRCUIT, (F) A FIRST LOAD REGISTERING POTENTIOMETER MECHANICALLY COUPLED TO SAID SERVO MOTOR AND ELECTRICALLY CONNECTED TO SAID FIELD COIL OF SAID SERVO MOTOR, SAID FIRST LOAD REGISTERING POTENTIOMETER BEING POSITIONED BY SAID SERVO MOTOR IN RESPONSE TO SAID LOAD APPLIED TO SAID TEST SPECIMEN,
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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) | 1967-09-01 | 1968-03-02 | 1968-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-01 | 1972-03-02 | 1972-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-01 | 1976-03-02 | 1976-09-01 | $7700.00 | Window Closed / Lapsed |