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US4558696A Expired / Lapsed US ⏱️ 0.0 years remaining

Water trap

Assignee: Individual
•
Filing: 1984-04-16
•
Granted: 1985-12-17
•
Expires: 2004-04-16
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Abstract

Abstract The present invention is a liquid water trap for continuous trapping of liquid from the gas passed by a pressurized breathing circuit of a ventilator, respirator, anaesthesia unit or the like. A hollow, spherically shaped member has a plurality of holes through its surface. A pair of tubular members extend from within the spherically shaped member, through the surface thereof, and radially outward therefrom, with the first end of each tubular member positioned within the spherically shaped member such that the first ends are separated and overlap in the central region of the spherically shaped member. The second ends of the pair of tubular members are adapted for connection in a pressurized breathing circuit for passage of the breathing circuit gas therethrough. A drain tube member is wrapped about the exterior of the spherically shaped member and has a smaller diameter than the pair of tubular members, with a plurality of holes on one side only of the drain tube member, the drain tube holes being substantially the same size as and overlying the spherically shaped member holes, so that liquid water lying in the lowest lying region within the spherically shaped member flows through the spherically shaped member holes and the drain tube holes and drains out the drain tube.

Inventors

  • 👤 Gary K. Eiserman
  • 👤 Robert W. Hagar

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 09:31
CPC Classifications
A; A61; A61M; A61M16/00; A61M16/08; A61M16/0808

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 208 words
A liquid water trap for continuous trapping of liquid from the gas passed by a pressurized breathing circuit of a ventilator, respirator, anaesthesia unit or the like, comprising: a hollow, spherically shaped member having a plurality of holes through the surface thereof; a pair of tubular members extending from within said spherically shaped member, through the surface thereof, and radially outward therefrom with the first end of each tubular member positioned within said spherically shaped member such that said first ends are separated and overlap in the central region of said spherically shaped member, the second ends of said pair of tubular members being adapted for connection in a pressurized breathing circuit for passage of the breathing circuit gas therethrough; a drain tube member wrapped about the exterior of said spherically shaped member and having a smaller diameter than said pair of tubular members, with a plurality of holes on one side only of said drain tube member, the drain tube holes being substantially the same size as and overlying the spherically shaped member holes, so that liquid water lying in the lowest lying region within the spherically shaped member flows through the spherically shaped member holes and the drain tube holes and drains out said drain tube.
Claim 2
Dependent Claim 208 words
A liquid water trap for continuous trapping of liquid from the gas passed by a pressurized breathing circuit of a ventilator, respirator, anaesthesia unit or the like, comprising: a hollow, spherically shaped member having a plurality of holes through the surface thereof; a pair of tubular members extending from within said spherically shaped member, through the surface thereof, and radially outward therefrom with the first end of each tubular member positioned within said spherically shaped member such that said first ends are separated and overlap in the central region of said spherically shaped member, the second ends of said pair of tubular members being adapted for connection in a pressurized breathing circuit for passage of the breathing circuit gas therethrough; a drain tube member wrapped about the exterior of said spherically shaped member and having a smaller diameter than said pair of tubular members, with a plurality of holes on one side only of said drain tube member, the drain tube holes being substantially the same size as and overlying the spherically shaped member holes, so that liquid water lying in the lowest lying region within the spherically shaped member flows through the spherically shaped member holes and the drain tube holes and drains out said drain tube.
Claim 3
Dependent Claim 28 words
The device of claim 1 wherein said drain tube has a first open end and a second end adapted for attachment to a suction device or a drain.
Claim 4
Dependent Claim 28 words
The device of claim 2 wherein the size of the spherically shaped member holes and the drain tube holes is approximately the size of a single water drop.
Claim 5
Dependent Claim 28 words
The device of claim 1 wherein said drain tube has a first closed end and a second end adapted for attachment to a suction device or a drain.
Claim 6
Dependent Claim 27 words
The device of claim 4 wherein the size of the spherical member holes and the drain tube holes is approximately the size of a single water drop.

References Cited (Backward Citations)

US2458909A Cited
US3968812A Cited
US4020834A Cited
US4327718A Cited
US4391271A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1988-12-16 1989-06-17 1989-12-17 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1992-12-16 1993-06-17 1993-12-17 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1996-12-16 1997-06-17 1997-12-17 $7700.00 Window Closed / Lapsed

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