Patent US3878869A successfully refreshed from Google Patents.
US3878869A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid transfusion pipe for a very small quantity
Assignee: ATOMU KK
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Filing: 1973-05-29
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Granted: 1975-04-22
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Expires: 1993-05-29
Abstract
Abstract The invention relates to a liquid transfusion pipe which comprises an elongate tubular member having an axially extending capillary passage and terminating in connectors one of which is a socket and the other a plug adapted for mating engagement with a plug and socket respectively of connecting lines.
Inventors
- 👤 Itsuro Yamanouchi
- 👤 Tsuyoshi Tsuji
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 04:17
CPC Classifications
F; F16; F16L; F16L55/00; F16L55/02; F16L55/027; F16L55/02763; A; A61; A61M; A61M39/00; A61M39/08; A61M39/10; A61M5/00; A61M5/14; A61M5/141; A61M2039/1027
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
111 words
A liquid transfusion pipe for transfusing a small quantity of liquid and comprising an elongate tubular member having an axially extending capillary passage therein, and a pair of connectors, one at one end of the tubular member and the other at the opposite end of the tubular member, said one of said pair of connectors comprising a socket having a helical ridge on its inner wall and said other of said pair of connectors comprising a plug having a flange, said helical ridge and said flange being adapted for respective engagement with a flange and a helical ridge of a like plug and a like socket provided on separate connecting lines.
Claim 2
Dependent Claim
111 words
A liquid transfusion pipe for transfusing a small quantity of liquid and comprising an elongate tubular member having an axially extending capillary passage therein, and a pair of connectors, one at one end of the tubular member and the other at the opposite end of the tubular member, said one of said pair of connectors comprising a socket having a helical ridge on its inner wall and said other of said pair of connectors comprising a plug having a flange, said helical ridge and said flange being adapted for respective engagement with a flange and a helical ridge of a like plug and a like socket provided on separate connecting lines.
Claim 3
Dependent Claim
111 words
A liquid transfusion pipe for transfusing a small quantity of liquid and comprising an elongate tubular member having an axially extending capillary passage therein, and a pair of connectors, one at one end of the tubular member and the other at the opposite end of the tubular member, said one of said pair of connectors comprising a socket having a helical ridge on its inner wall and said other of said pair of connectors comprising a plug having a flange, said helical ridge and said flange being adapted for respective engagement with a flange and a helical ridge of a like plug and a like socket provided on separate connecting lines.
Claim 4
Dependent Claim
111 words
A liquid transfusion pipe for transfusing a small quantity of liquid and comprising an elongate tubular member having an axially extending capillary passage therein, and a pair of connectors, one at one end of the tubular member and the other at the opposite end of the tubular member, said one of said pair of connectors comprising a socket having a helical ridge on its inner wall and said other of said pair of connectors comprising a plug having a flange, said helical ridge and said flange being adapted for respective engagement with a flange and a helical ridge of a like plug and a like socket provided on separate connecting lines.
Claim 5
Dependent Claim
33 words
A liquid transfusion pipe according to claim 1 in which the tubular member contains a plurality of filaments between which are defined a plurality of capillary passages, an elongate sleeve encasing the filaments.
Claim 6
Dependent Claim
18 words
A liquid transfusion pipe according to claim 2 in which the filaments are substantially circular in cross section.
Claim 7
Dependent Claim
35 words
A liquid transfusion pipe according to claim 2 in which the filaments have axially extending grooves formed in their outer periphery, said capillary passages being defined between said filaments in spaces provided by the grooves.
Claim 8
Dependent Claim
19 words
A liquid transfusion pipe according to claim 2 in which the sleeve comprises resin moulded around the assembled filaments.
Claim 9
Dependent Claim
17 words
A liquid transfusion pipe according to claim 2 in which the filaments are formed of synthetic resin.
Claim 10
Dependent Claim
17 words
A liquid transfusion pipe according to claim 2 in which the filaments are formed of fibre glass.
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) | 1978-04-21 | 1978-10-21 | 1979-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-21 | 1982-10-21 | 1983-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-21 | 1986-10-21 | 1987-04-22 | $7700.00 | Window Closed / Lapsed |