Patent US3105511A successfully refreshed from Google Patents.
US3105511A
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Infusion safety valve
Assignee: Cordis Corp
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Filing: 1961-08-10
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Granted: 1963-10-01
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Expires: 1981-08-10
Abstract
No abstract record available.
Inventors
- 👤 Jr William P Murphy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:40
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/36; A61M5/40; F; F16; F16K; F16K31/00; F16K31/02; F16K31/06; F16K31/08; A61M5/14; A61M5/1411; Y; Y10; Y10T; Y10T137/00; Y10T137/7287; Y10T137/7313; Y10T137/7323; Y10T137/7326; Y10T137/7329
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
AN INFUSION SAFETY VALVE COMPRISING AN ELONGATE HOUSING HAVING AT ITS UPPER END AN INLET AND AT ITS LOWER END AN OUTLET AND BEING OTHERWISE SEALED, A FLOAT SLIDING FREELY WITHIN SAID HOUSING AND HAVING AT ITS LOWER END MEANS FOR CLOSING SAID OUTLET, A FIRST MAGNETIC ELEMENT ATTACHED TO SAID FLOAT, A SECOND MAGNETIC ELEMENT CONNECTED TO SAID HOUSING AND OPERATIONALLY POSITIONED ADJACENT SAID OUTLET, AT LEAST ONE OF SAID MAGNETIC ELEMENTS BEING PERMANENTLY POLARIZED, THE BUOYANCY OF THE FLOAT BEING SUFFICIENT TO MAINTAIN SEPARATED THE TWO SAID MAGNETIC ELEMENTS BUT INSUFFICIENT TO SEPARATE THEM FROM CLOSE PROXIMITY TO ONE ANOTHER.
Claim 2
Dependent Claim
102 words
AN INFUSION SAFETY VALVE COMPRISING AN ELONGATE HOUSING HAVING AT ITS UPPER END AN INLET AND AT ITS LOWER END AN OUTLET AND BEING OTHERWISE SEALED, A FLOAT SLIDING FREELY WITHIN SAID HOUSING AND HAVING AT ITS LOWER END MEANS FOR CLOSING SAID OUTLET, A FIRST MAGNETIC ELEMENT ATTACHED TO SAID FLOAT, A SECOND MAGNETIC ELEMENT CONNECTED TO SAID HOUSING AND OPERATIONALLY POSITIONED ADJACENT SAID OUTLET, AT LEAST ONE OF SAID MAGNETIC ELEMENTS BEING PERMANENTLY POLARIZED, THE BUOYANCY OF THE FLOAT BEING SUFFICIENT TO MAINTAIN SEPARATED THE TWO SAID MAGNETIC ELEMENTS BUT INSUFFICIENT TO SEPARATE THEM FROM CLOSE PROXIMITY TO ONE ANOTHER.
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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) | 1966-09-30 | 1967-04-01 | 1967-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-30 | 1971-04-01 | 1971-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-30 | 1975-04-01 | 1975-10-01 | $7700.00 | Window Closed / Lapsed |