Patent US3207372A successfully refreshed from Google Patents.
US3207372A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Intravenous feeding apparatus
Assignee: Sterilon Corp
•
Filing: 1962-09-21
•
Granted: 1965-09-21
•
Expires: 1982-09-21
Abstract
No abstract record available.
Inventors
- 👤 Robert P Evans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:44
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/14; A61M5/1411; A61M5/36; A61M5/40; F; F16; F16K; F16K3/00; F16K3/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
175 words
AN APPARATUS FOR INTRAVENOUS ADMINISTRATION OF FLUID COMPRISING IN COMBINATTION, A FLASK ADAPTED TO CONTAIN THE FLUID TO BE ADMINISTERED AND HAVING AN AIR INLET INTO THE UPPER LEVEL THEREOF, A FLUID FEED LINE ADAPTED TO CARRY THE FLUID TO BE ADMINISTERED BY GRAVITY FROM SAID FLASK TO THE POINT OF ADMINISTRATION, A TUBULAR MEMBER DEFINING A DRIP CHAMBER AND HAVING INLET AND OUTLET MEANS AT ITS ENDS ADAPTED FOR CONNECTION TO FORM A PORTION OF SAID FEED LINE, SAID INLET MEANS INCLUDING A RIGID HOLLOW STEM ADAPTED TO BE PUSHED INTO SAID FLASK TO ANY DESIRED LEVEL THEREIN, AND SAID TUBULAR MEMBER HAVING A VALVE SEAT ADJACENT SAID OUTLET END THEREOF, AND A CHECK VALVE DISPOSED WITHIN SAID TUBULAR MEMBER AND ADAPTED TO BE BUOYED BY FLUID ACCMULATED WITHIN SAID CHAMBER AND TO LOWER BY GRAVITY UPON SAID VALVE SEAT IN THE ABSENCE OF BUOYANT FLUID TO CLOSE SAID FEED LINE AND THEREBY MAINTAIN AT ALL TIMES A HEAD OF FLUID IN THE APPARATUS BELOW SAID VALVE SEAT AND PREVENT ENTRANCE OF AIR THEREBELOW.
Claim 2
Independent Claim
175 words
AN APPARATUS FOR INTRAVENOUS ADMINISTRATION OF FLUID COMPRISING IN COMBINATTION, A FLASK ADAPTED TO CONTAIN THE FLUID TO BE ADMINISTERED AND HAVING AN AIR INLET INTO THE UPPER LEVEL THEREOF, A FLUID FEED LINE ADAPTED TO CARRY THE FLUID TO BE ADMINISTERED BY GRAVITY FROM SAID FLASK TO THE POINT OF ADMINISTRATION, A TUBULAR MEMBER DEFINING A DRIP CHAMBER AND HAVING INLET AND OUTLET MEANS AT ITS ENDS ADAPTED FOR CONNECTION TO FORM A PORTION OF SAID FEED LINE, SAID INLET MEANS INCLUDING A RIGID HOLLOW STEM ADAPTED TO BE PUSHED INTO SAID FLASK TO ANY DESIRED LEVEL THEREIN, AND SAID TUBULAR MEMBER HAVING A VALVE SEAT ADJACENT SAID OUTLET END THEREOF, AND A CHECK VALVE DISPOSED WITHIN SAID TUBULAR MEMBER AND ADAPTED TO BE BUOYED BY FLUID ACCMULATED WITHIN SAID CHAMBER AND TO LOWER BY GRAVITY UPON SAID VALVE SEAT IN THE ABSENCE OF BUOYANT FLUID TO CLOSE SAID FEED LINE AND THEREBY MAINTAIN AT ALL TIMES A HEAD OF FLUID IN THE APPARATUS BELOW SAID VALVE SEAT AND PREVENT ENTRANCE OF AIR THEREBELOW.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-20 | 1969-03-22 | 1969-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-20 | 1973-03-22 | 1973-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-20 | 1977-03-22 | 1977-09-21 | $7700.00 | Window Closed / Lapsed |