US3987930A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dual-ended tubing cap
Assignee: Ethicon Inc
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Filing: 1974-09-26
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Granted: 1976-10-26
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Expires: 1994-09-26
Abstract
Abstract An intravenous tubing cap for sealing the end of a male tubing coupling or a female tubing coupling is provided by a plug having a tapered male fitting at one end being backed against a tapered female fitting at the other end. The plug may be molded in one piece with the back of the male portion forming a contiguous part of the female portion. Preferably, a serrated protective skirt around the male fitting provides a surface by which the cap may be grasped.
Inventors
- 👤 Robert Lee Fuson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:07
CPC Classifications
A; A61; A61M; A61M39/00; A61M39/20
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
174 words
A cap for sealing Luer-tapered intravenous tubing couplings, comprising: means for capping off a male Luer-tapered tubing end having a Luer-tapered surface; and means for capping off a female Luer-tapered tubing end having a Luer-tapered surface and being connected to and protruding from said male end capping off means; said male end capping off means including a back plate with a cylindrical structure extending therefrom, said cylindrical structure having a constant outside diameter, a tapered bore which is reduced going into said cylinder and an end parted off perpendicular to the longitudinal axis of said bore; said female end capping off means including a tapered plug extending from said back plate and tapering down to a free end being perpendicular to the extension of said plug, and a cylindrical skirt extending from said back plate about said tapered plug; said cylindrical structure, said tapered bore, said tapered plug and said cylindrical skirt having a same centerline axis and being of dimensional sizes to permit stacking, male-end-to-female-end, and female-end-to-male-end, of said cap with identical caps.
Claim 2
Dependent Claim
174 words
A cap for sealing Luer-tapered intravenous tubing couplings, comprising: means for capping off a male Luer-tapered tubing end having a Luer-tapered surface; and means for capping off a female Luer-tapered tubing end having a Luer-tapered surface and being connected to and protruding from said male end capping off means; said male end capping off means including a back plate with a cylindrical structure extending therefrom, said cylindrical structure having a constant outside diameter, a tapered bore which is reduced going into said cylinder and an end parted off perpendicular to the longitudinal axis of said bore; said female end capping off means including a tapered plug extending from said back plate and tapering down to a free end being perpendicular to the extension of said plug, and a cylindrical skirt extending from said back plate about said tapered plug; said cylindrical structure, said tapered bore, said tapered plug and said cylindrical skirt having a same centerline axis and being of dimensional sizes to permit stacking, male-end-to-female-end, and female-end-to-male-end, of said cap with identical caps.
Claim 3
Dependent Claim
42 words
The cap of claim 1 also including: a pair of triangularly shaped flange sections being positioned diametrically opposed on the outside diameter of said cylinder near said cylinder free end; and screw threads extending from the inner surface of said cylindrical skirt.
Claim 4
Dependent Claim
43 words
The cap of claim 2 wherein said tapered plug is hollow, having uniform side and end wall thickness and wherein said hollow plug is formed by the continuation of a hole through said back plate to almost the end of said tapered plug.
Claim 5
Dependent Claim
27 words
The cap of claim 3 wherein said cylindrical structure, said tapered plug and said cylindrical skirt are made out of a single piece of injection molded plastic.
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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) | 1979-10-26 | 1980-04-26 | 1980-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-10-26 | 1984-04-26 | 1984-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-10-26 | 1988-04-26 | 1988-10-26 | $7700.00 | Window Closed / Lapsed |