US3216243A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for determination of the internal resistance of a mass
Assignee: Individual
•
Filing: 1962-11-23
•
Granted: 1965-11-09
•
Expires: 1982-11-23
Abstract
No abstract record available.
Inventors
- 👤 Bergfelt Allan
- 👤 Hultgren Simon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:09
CPC Classifications
G; G01; G01N; G01N11/00; G01N11/10; G01N11/14; E; E02; E02D; E02D1/00; E02D1/02; E02D1/022
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
APPARATUS FOR DETERMINING THE INTERNAL RESISTANCE OF A MASS, WHICH INCLUDES A WING ROD PROVIDED AT ITS LOWER END WITH A PLURALITY OF WINGS FOR ROTATIONAL CONTACT WITH THE INTERIOR OF THE MASS, A ROTATABLE DRIVING ROD, AND MEANS FOR COUPLING SAID DRIVING ROD TO SAID WING ROD IN ORDER TO ENABLE ROTATION OF THE LATTER, SAID COUPLING MEANS BEING SO CONSTRUCTED THAT, AS DESIRED, SAID DRIVING ROD CAN BE DISENGAGED FROM SAID WING ROD AND ROTATED FREELY WITH RESPECT TO SAID WING ROD WITHOUT BREAKING THE OVERALL CONNECTION BETWEEN THE DRIVING ROD AND THE WING ROD.
Claim 2
Dependent Claim
97 words
APPARATUS FOR DETERMINING THE INTERNAL RESISTANCE OF A MASS, WHICH INCLUDES A WING ROD PROVIDED AT ITS LOWER END WITH A PLURALITY OF WINGS FOR ROTATIONAL CONTACT WITH THE INTERIOR OF THE MASS, A ROTATABLE DRIVING ROD, AND MEANS FOR COUPLING SAID DRIVING ROD TO SAID WING ROD IN ORDER TO ENABLE ROTATION OF THE LATTER, SAID COUPLING MEANS BEING SO CONSTRUCTED THAT, AS DESIRED, SAID DRIVING ROD CAN BE DISENGAGED FROM SAID WING ROD AND ROTATED FREELY WITH RESPECT TO SAID WING ROD WITHOUT BREAKING THE OVERALL CONNECTION BETWEEN THE DRIVING ROD AND THE WING ROD.
References Cited (Backward Citations)
US1524677A
Cited
US2603967A
Cited
US2709363A
Cited
US2907204A
Cited
US2993367A
Cited
US3062045A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-08 | 1969-05-10 | 1969-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-08 | 1973-05-10 | 1973-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-08 | 1977-05-10 | 1977-11-09 | $7700.00 | Window Closed / Lapsed |