Syringe
Abstract
Abstract THERE IS DISCLOSED A SYRINGE FOR INJECTING A SOLUTION OF A DRY SUBSTANCE AND A SOLVENT, INCLUDING A SYRINGE BARREL CARRYING THE INJECTION NEEDLE, SAID BARREL CONTAINING THE DRY SUBSTANCE, AND PISTON SHIFTABLY MOUNTED IN THE BARREL AND CLOSING THE SYRINGE BARREL ABOVE THE DRY SUBSTANCE, WHEREIN THE INJECTION NEEDLE IS CARRIED BY THE SYRINGE BARREL AXIALLY SHIFTABLE BETWEEN TWO SETTINGS, A RESILIENT SEAL IS DISPOSED BETWEEN THE BARREL SIDE AND OF THE INJECTION NEEDLE AND THE SYRINGE BARREL SHUTTING SAME OFF, SAID SEAL BEING PUNCTURED BY THE NEEDLE UPON SHIFTING THEREOF INTO A LIMIT POSITION, AND THE SYRINGE PISTON CONSISTS OF A RESILIENT MATERIAL AND HAS A RECESS WITH FEMALE THREADS AT THE END FACING AWAY FROM THE INJECTION NEEDLE INTO WHICH THREADS A PLUNGER SERVING TO SHIFT THE SYRING PISTON IS CAPABLE OF BEING SCREWED-IN WHICH CARRIES A HOLLOW NEEDLE PUNCTURING THROUGH THE SYRINGE PISTON IN HE COMPLETELY SCREW-IN LOCATION, THE OTHER END OF SAID NEEDLE BEING CAPABLE OF BEING CONNECTED WITH AN AMPOULE CONTAINING THE SOLVENT THE SOLVENT THEREBY BEING PASSED TO THE DRY SUBSTANCE UPON RETRACTING THE SYRINGE PISTON IN THE SYRINGE BARREL.
Inventors
- 👤 Theo Metten
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-22 | 1975-05-24 | 1975-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-22 | 1979-05-24 | 1979-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-22 | 1983-05-24 | 1983-11-23 | $7700.00 | Window Closed / Lapsed |