Microdispensing device
Abstract
Abstract THIS INVENTION IS A MICRODISPENSING DEVICE INTO WHICH A PRECISION AMOUNT OF LIQUID MAY BE DRAWN AND DISPENSED. THE DEVICE INCLUDES A BARREL HAVING A BORE AND A DISPOSABLE CAPILLARY TUBE REMOVABLY HELD IN COMMUNICATION WITH ONE TERMINAL OF THE BORE. A PLUNGER MOVES THROUGH THE BARREL AND THE CAPILLARY TUBE, THE PLUNGER EXTENDING THROUGH AN END CAP IN THE OPPOSITE TERMINAL OF THE BARREL. UNIFORMLY SPACED ANNULAR RECESSES IN THE OUTER PERIPHERY OF A PLUNGER HOLDER SELECTIVELY ENGAGE A WIRE SPRING DETENT FOR DETERMINING BY "FEEL" THE AMOUNT OF LIQUID DISPENSED. TRAVEL LIMITING INSERTS REMOVABLY POSITIONED IN THE BARREL REGULATE THE LENGTH OF THE PLUNGER STROKE AND CONSEQUENTLY THE AMOUNT OF LIQUID DRAWN INTO AND DISPENSED FROM THE DEVICE.
Inventors
No inventors recorded.
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) | 1976-05-28 | 1976-11-27 | 1977-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-28 | 1980-11-27 | 1981-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-28 | 1984-11-27 | 1985-05-29 | $7700.00 | Window Closed / Lapsed |