US3796245A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drip meters
Assignee: Individual
•
Filing: 1971-10-04
•
Granted: 1974-03-12
•
Expires: 1991-10-04
Abstract
Abstract A drip meter that is an integral part of a flexible parenteral solution container.
Inventors
- 👤 O Wildensteiner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:17
CPC Classifications
A; A61; A61J; A61J1/00; A61J1/05; A61M; A61M31/00; A61M39/00; A61M39/22; F; F16; F16K; F16K3/00; F16K3/30; F16K3/34
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
21 words
Parenteral fluid administering equipment comprising: a flexible walled container having means integral therewithin for setting a variable predetermined fluid administration rate.
Claim 2
Dependent Claim
21 words
Parenteral fluid administering equipment comprising: a flexible walled container having means integral therewithin for setting a variable predetermined fluid administration rate.
Claim 3
Dependent Claim
26 words
Parenteral fluid administering equipment as in claim 1 wherein said means comprises interdigitated elements, alternate ones of said elements being associated with the same flexible wall.
Claim 4
Dependent Claim
26 words
Parenteral fluid administering equipment as in claim 2 wherein said interdigitated elements have at least one flow passage in at least one of said interdigitated elements.
Claim 5
Dependent Claim
29 words
Parenteral fluid administering equipment as in claim 3 having detent means associated with said interdigitated elements for holding said interdigitated elements in any one of a plurality of relationships.
Claim 6
Dependent Claim
53 words
A flexible walled fluid container comprising: sheets of flexible material placed in overlying relationship to one another and sealed at their peripheries to form a fluid reservoir therewithin, said reservoir being subdivided by adjustable valve means into two reservoirs, said adjustable valve means controlling the rate of flow of fluid between said reservoirs.
Claim 7
Dependent Claim
53 words
A flexible walled fluid container comprising: sheets of flexible material placed in overlying relationship to one another and sealed at their peripheries to form a fluid reservoir therewithin, said reservoir being subdivided by adjustable valve means into two reservoirs, said adjustable valve means controlling the rate of flow of fluid between said reservoirs.
Claim 8
Dependent Claim
27 words
A container as in claim 5 wherein said valve means comprises interdigitated elements, alternate ones of said interdigitated elements being associated with the same fluid reservoir wall.
Claim 9
Dependent Claim
23 words
A container as in claim 6 wherein said interdigitated elements have at least one flow passage in at least one of said elements.
Claim 10
Dependent Claim
27 words
A container as in claim 7 having detent means associated with said interdigitated elements for holding said interdigitated elements in any one of a plurality of relationships.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
US3189252A
Cited
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Cited
US3620500A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-03-11 | 1977-09-10 | 1978-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-11 | 1981-09-10 | 1982-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-11 | 1985-09-10 | 1986-03-12 | $7700.00 | Window Closed / Lapsed |