← Back to Patent Explorer
US3941171A Expired / Lapsed US ⏱️ 0.0 years remaining

Fluid transfer device

Assignee: IMS Ltd
•
Filing: 1973-07-05
•
Granted: 1976-03-02
•
Expires: 1993-07-05
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A fluid transfer device comprising two parallel fluid passages, both carried by a flange which is generally perpendicular to said passages, the improvement wherein the two ends of said passages on each of said flanges are longitudinally displaced from one another. The combination of a fluid transfer device comprising two parallel fluid passages, both carried by a flange which is generally perpendicular to said passages, the improvement wherein the two ends of said passages on each side of said flange are longitudinally displaced from one another; and a medicament container having an open end, an imperforate rubber stopper in said open end which seals said container, the one end of each of said fluid passages being adapted to pierce said stopper with said flange abutting the exterior of said stopper.

Inventors

  • 👤 Robert W. Ogle

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 03:46
CPC Classifications
A; A61; A61J; A61J1/00; A61J1/14; A61J1/20; A61J1/2089; A61J1/2003; A61J1/2006; A61J1/201; A61J1/2013; A61J1/2068; A61J1/2072

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 121 words
A fluid transfer device comprising two parallel fluid passages within a single elongated rigid member having open cutting ends, said rigid member being carried by a generally disk-like flange disposed midway between the ends of said rigid member which is generally perpendicular to said passages, the improvement wherein said passages are of equal length and the two open ends of said passages on each side of said flanges are longitudinally displaced from one another, and further wherein said rigid member is provided with at least one lateral air hole in one of said passages and, on the opposite of said flange, the other of said passages is provided with at least one lateral hole to prevent the formation of fluid slug.
Claim 2
Dependent Claim 121 words
A fluid transfer device comprising two parallel fluid passages within a single elongated rigid member having open cutting ends, said rigid member being carried by a generally disk-like flange disposed midway between the ends of said rigid member which is generally perpendicular to said passages, the improvement wherein said passages are of equal length and the two open ends of said passages on each side of said flanges are longitudinally displaced from one another, and further wherein said rigid member is provided with at least one lateral air hole in one of said passages and, on the opposite of said flange, the other of said passages is provided with at least one lateral hole to prevent the formation of fluid slug.
Claim 3
Dependent Claim 57 words
The device of claim 1 wherein said rigid member is provided with at least one lateral hole in one of said passages and, on the opposite of said flange, the other of said passages is also provided with at least one lateral hole, the lateral holes on opposite sides of said flange being equidistant from said flange.
Claim 4
Dependent Claim 53 words
The device of claim 1 wherein said rigid member is provided with two lateral holes in one of said passages and on the opposite of said flange the other of said passages is also provided with two lateral holes, the lateral holes on opposite sides of said flange being equidistant from said flange.

References Cited (Backward Citations)

US1526595A Cited
US2284166A Cited
US2435033A Cited
US2584397A Cited
US2737948A Cited
FR1122616A Cited
US2941531A Cited
US3089491A Cited
US3156272A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1979-03-02 1979-09-01 1980-03-02 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1983-03-02 1983-09-01 1984-03-02 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1987-03-02 1987-09-01 1988-03-02 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag