US3115137A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aspiration seal
Assignee: Individual
•
Filing: 1962-03-12
•
Granted: 1963-12-24
•
Expires: 1982-03-12
Abstract
No abstract record available.
Inventors
- 👤 Stanley J Sarnoff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:44
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/178; A61M5/28
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
203 words
A CARTRIDGE FOR USE WITH A HYPODERMIC CARTRIDGE HOLDER COMPRISING: A TUBE, A PISTON AT ONE END OF SAID TUBE, A RESILIENT STOPPER AT THE OTHER END OF SAID TUBE, MEDICATION IN THE TUBE BETWEEN SAID PISTON AND STOPPER, SAID STOPPER HAVING A PASSAGEWAY THERETHROUGH HAVING A FIRST PORTION OF SMALL CROSS SECTION THROUGH A MAJOR PORTION OF THE STOPPER AND A SECOND PORTION OF MUCH LARGER CROSS SECTION AT THE END OF THE STOPPER WHICH COMMUNICATES DIRECTLY WITH SAID MEDICATION, A BEAD IN SAID PASSAGEWAY ADAPTED TO BE LOCATED IN SAID SECOND PORTION AND OF A SIZE TO BE JUST FRICTIONALLY RETAINED IN SAID SECOND PORTION OF THE PASSAGEWAY BUT YET DISLODGABLE BY SUCTION THROUGH THE PASSAGEWAY, A HOLLOW NEEDLE SLIDABLE IN SAID PASSAGEWAY AND WITH ITS HOLLOW PORTION OBTURATED BY SAID BEAD, THE HOLLOW IN SAID NEEDLE BEING EXPOSED AND IN COMMUNICATION WITH SAID MEDICATION UPON MOVEMENT OF SAID PISTON IN A DIRECTION AWAY FROM THE THE STOPPER WITH CONSEQUENT SUCKING OF THE BEAD OUT OF THE SECTION PORTION OF THE PASSAGEWAY, AND MEANS LIMITING THE MOTION OF THE NEEDLE TOWARD THE PISTON TO PREVENT THE END OF THE NEEDLE FROM DISLODGING THE BEAD FROM THE SECOND PORTION OF THE PASSAGEWAY.
Claim 2
Dependent Claim
203 words
A CARTRIDGE FOR USE WITH A HYPODERMIC CARTRIDGE HOLDER COMPRISING: A TUBE, A PISTON AT ONE END OF SAID TUBE, A RESILIENT STOPPER AT THE OTHER END OF SAID TUBE, MEDICATION IN THE TUBE BETWEEN SAID PISTON AND STOPPER, SAID STOPPER HAVING A PASSAGEWAY THERETHROUGH HAVING A FIRST PORTION OF SMALL CROSS SECTION THROUGH A MAJOR PORTION OF THE STOPPER AND A SECOND PORTION OF MUCH LARGER CROSS SECTION AT THE END OF THE STOPPER WHICH COMMUNICATES DIRECTLY WITH SAID MEDICATION, A BEAD IN SAID PASSAGEWAY ADAPTED TO BE LOCATED IN SAID SECOND PORTION AND OF A SIZE TO BE JUST FRICTIONALLY RETAINED IN SAID SECOND PORTION OF THE PASSAGEWAY BUT YET DISLODGABLE BY SUCTION THROUGH THE PASSAGEWAY, A HOLLOW NEEDLE SLIDABLE IN SAID PASSAGEWAY AND WITH ITS HOLLOW PORTION OBTURATED BY SAID BEAD, THE HOLLOW IN SAID NEEDLE BEING EXPOSED AND IN COMMUNICATION WITH SAID MEDICATION UPON MOVEMENT OF SAID PISTON IN A DIRECTION AWAY FROM THE THE STOPPER WITH CONSEQUENT SUCKING OF THE BEAD OUT OF THE SECTION PORTION OF THE PASSAGEWAY, AND MEANS LIMITING THE MOTION OF THE NEEDLE TOWARD THE PISTON TO PREVENT THE END OF THE NEEDLE FROM DISLODGING THE BEAD FROM THE SECOND PORTION OF THE PASSAGEWAY.
Claim 3
Dependent Claim
108 words
A CARTRIDGE FOR USE WITH A HYPODERMIC CARTRIDGE HOLDER COMPRISING: A TUBE, A PISTON AT ONE END OF SAID TUBE, A RESILIENT STOPPER AT THE OTHER END OF SAID TUBE, MEDICATION IN THE TUBE BETWEEN SAID PISTON AND STOPPER, SAID STOPPER HAVING A PASSAGEWAY THERETHROUGH HAVING A PORTION COMMUNICATING DIRECTLY WITH SAID MEDICATION, A BEAD OF SUBSTANTIALLY THE DIAMETER OF SAID PORTION OF THE PASSAGEWAY FRICTIONALLY HELD IN SAID PORTION, SAID BEAD BEING LARGER THAN SAID PASSAGEWAY, SAID STOPPER AT THE MEDICATION CONTACTING END OF THE STOPPER HAVING A CIRCUMFERENTIAL RECESS AND A CONVEX SURFACE ON THE STOPPER FROM THE MEDICATION END OF THE PASSAGEWAY TO THE RECESS.
Claim 4
Dependent Claim
108 words
A CARTRIDGE FOR USE WITH A HYPODERMIC CARTRIDGE HOLDER COMPRISING: A TUBE, A PISTON AT ONE END OF SAID TUBE, A RESILIENT STOPPER AT THE OTHER END OF SAID TUBE, MEDICATION IN THE TUBE BETWEEN SAID PISTON AND STOPPER, SAID STOPPER HAVING A PASSAGEWAY THERETHROUGH HAVING A PORTION COMMUNICATING DIRECTLY WITH SAID MEDICATION, A BEAD OF SUBSTANTIALLY THE DIAMETER OF SAID PORTION OF THE PASSAGEWAY FRICTIONALLY HELD IN SAID PORTION, SAID BEAD BEING LARGER THAN SAID PASSAGEWAY, SAID STOPPER AT THE MEDICATION CONTACTING END OF THE STOPPER HAVING A CIRCUMFERENTIAL RECESS AND A CONVEX SURFACE ON THE STOPPER FROM THE MEDICATION END OF THE PASSAGEWAY TO THE RECESS.
References Cited (Backward Citations)
US2735430A
Cited
US1143855A
Cited
US2453589A
Cited
US2607344A
Cited
US2688966A
Cited
DE882600C
Cited
US2798497A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-12-23 | 1967-06-24 | 1967-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-23 | 1971-06-24 | 1971-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-23 | 1975-06-24 | 1975-12-24 | $7700.00 | Window Closed / Lapsed |