Patent US3347435A successfully refreshed from Google Patents.
US3347435A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brake or drive unit for recording tape
Assignee: Vyzkumny Ustav Matematickych Stroju
•
Filing: 1965-08-18
•
Granted: 1967-10-17
•
Expires: 1985-08-18
Abstract
No abstract record available.
Inventors
- 👤 Jura Stanislav
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:36
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/02; G11B15/10; G11B15/18; G11B15/26; G11B15/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
IN A TAPE CONVEYING MECHANISM, IN COMBINATION: (A) A FRICTION MEMBER HAVING AN EXPOSED FRICTION FACE; (B) ARMATURE MEANS INCLUDING AN ARMATURE MEMBER HAVING AN EXPOSEDC FACE OPPOSITE SAID FRICTION FACE AND DEFINING A GAP THEREWITH, SAID ARMATURE MEANS BEING AT LEAST PARTLY OF MAGNETIC MATERIAL; (C) MANETIC RELEASE MEANS FOR MOVING SAID FACE OF THE ARMATUR MEMBER IN A DIRECTION AWAY FROM SAID FRICTION FACE; (D) GUIDE MEANS FOR GUIDING A TAPE OF PREDETERMINED THICKNESS THROUGH SAID GAP; AND (E) ABUTMENT MEANS FOR LIMITING THE MOVEMENT OF SAID FACE OF THE ARMATURE MEMBER IN SAI DIRECTION TO A DISTANCE NOT SUBSTANTIALLY GREATER THAN SAID THICKNESS.
Claim 2
Dependent Claim
106 words
IN A TAPE CONVEYING MECHANISM, IN COMBINATION: (A) A FRICTION MEMBER HAVING AN EXPOSED FRICTION FACE; (B) ARMATURE MEANS INCLUDING AN ARMATURE MEMBER HAVING AN EXPOSEDC FACE OPPOSITE SAID FRICTION FACE AND DEFINING A GAP THEREWITH, SAID ARMATURE MEANS BEING AT LEAST PARTLY OF MAGNETIC MATERIAL; (C) MANETIC RELEASE MEANS FOR MOVING SAID FACE OF THE ARMATUR MEMBER IN A DIRECTION AWAY FROM SAID FRICTION FACE; (D) GUIDE MEANS FOR GUIDING A TAPE OF PREDETERMINED THICKNESS THROUGH SAID GAP; AND (E) ABUTMENT MEANS FOR LIMITING THE MOVEMENT OF SAID FACE OF THE ARMATURE MEMBER IN SAI DIRECTION TO A DISTANCE NOT SUBSTANTIALLY GREATER THAN SAID THICKNESS.
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) | 1970-10-16 | 1971-04-17 | 1971-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-16 | 1975-04-17 | 1975-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-16 | 1979-04-17 | 1979-10-17 | $7700.00 | Window Closed / Lapsed |