US3705964A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Position indicating instrument with circuit control switches
Assignee: Qualitrol Co LLC
•
Filing: 1970-12-18
•
Granted: 1972-12-12
•
Expires: 1990-12-18
Abstract
Abstract AN INSTRUMENT WITH INTERNAL MECHANISM HAVING A GEAR DRIVEN BY A FLEXIBLE SHAFT OF AN ASSOCIATED VOLTAGE REGULATOR. AS THE GEAR TURNS, STUDS THEREON COOPERATES WITH TRIPPING ELEMENTS TO ACTUATE CIRCUIT CONTROL SWITCHES MOUNTED IN GROUPS UPON A STATIONARY PLATE. SELECTIVE ADJUSTMENT MAY BE MADE OF INDIVIDUAL SWITCHES RELATIVE TO THE TRIPPING ELEMENTS. AS THE GEAR TURNS, INDICATORS ARE MOVED TO INDICATE THE EXTENT OF DIRECTIONAL TURINING OF THE GEAR THE INTERNAL MECHANISM CAN BE ASSEMBLED OR REMOVED AS A UNIT THROUGH A FRONT END OF THE HOUSING COVERED BY A DETACHABLE BEZEL. READILY REMOVABLE SCREWS SECURE THE UNIT IN THE HOUSING.
Inventors
- 👤 Robert F Romanowski
- 👤 Michael Cellini
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:49
CPC Classifications
G; G05; G05F; G05F1/00; G05F1/10; G05F1/12; G05F1/14
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-12-12 | 1976-06-12 | 1976-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-12 | 1980-06-12 | 1980-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-12 | 1984-06-12 | 1984-12-12 | $7700.00 | Window Closed / Lapsed |