Clinical thermometer rotary shakedown device
Abstract
Abstract A THREADED BORE IN A SLEEVE CAN BE SELECTIVELY ENGAGED BY THE PROJECTING APICES OF A TRIANGULAR TRANSVERSELY DISPOSED THIN SUBSTANTIALLY FLAT HEAD ON THE BACK OF A STANDARD CLINICAL THERMOMETER. THE SLEEVE IS ROTATABLY DRIVEN ABOUT AN AXIS PERPENDICULAR TO THE LENGTH OF THE BORE BY A MOTOR MOUNTED IN A HOUSING WHICH INCLUDES A SUITABLE ENERGY SOURCE AND A CONTROL (OFF-ON) SWITCH. A COUNTERBALANCE WEIGHT ON THE SLEEVE OPPOSITE THE THREADED BORE STABILIZES THE SPINNING SLEEVE AND THERMOMETER TO AVOID EXCESSIVE WOBBLING AND VIBRATION. AS THE THERMOMETER SPINS, THE LEVEL OF MERCURY THREAD THEREIN IS LOWERED, THE MERCURY BEING FORCED BY CENTRIFUGAL ACTION THROUGH THE MAXIMUM TEMPERATURE RECORDING TRAP INTO THE BULB AT THE HEAD OF THE THERMOMETER.
Inventors
- 👤 Joel A Marcus
Bibliographic Details
Claims Analysis
Total Claims: 0References 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) | 1974-01-18 | 1974-07-20 | 1975-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-18 | 1978-07-20 | 1979-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-18 | 1982-07-20 | 1983-01-19 | $7700.00 | Window Closed / Lapsed |