Patent US3757082A successfully refreshed from Google Patents.
US3757082A
Expired / Lapsed
US
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Humidifier and heater for delicered gases
Assignee: CREDITANSTALT-BANKVEREIN
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Filing: 1972-01-21
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Granted: 1973-09-04
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Expires: 1992-01-21
Abstract
Abstract A humidifier to moisten and heat delivered gases from a source such as a respiratory machine. In a preferred form, the humidifier is a disposable assembly unit formed from a thermoplastic material in which the heating means is part of the assembly unit, removable or fixed. The structure of the humidifier further provides an improved handling of the delivered gas for moistening and heating in that gas is delivered through an inlet and tube means to a rebound chamber in a lower portion of the container where the gas is moved upwardly through a dispersion plate for bubbling through a body of water prior to discharge through an outlet.
Inventors
- 👤 G Goicdechea
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:05
CPC Classifications
A; A61; A61M; A61M16/00; A61M16/10; A61M16/14; A61M16/16; A61M16/08; A61M16/0816; A61M16/0841; A61M16/162; A62; A62B; A62B21/00; A61M2205/00; A61M2205/33; A61M2205/3368; Y; Y10; Y10S; Y10S261/00; Y10S261/65
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
122 words
A humidifier for delivered gases including a water container having a continuous sidewall, a top, and a bottom, an inlet for delivered gas on said container, an outlet for moistened and heated gas on said container electric heating means mounted to the bottom of the container, including heating elements and a temperature sensor, to warm water placed in the container to preset temperature levels, a gas dispersion plate mounted within said container closer to the bottom than to the top to define a gas rebound chamber therebelow, and tube means for conveying delivered gas below the dispersion plate into said rebound chamber, whereby gas moves upwardly through the dispersion plate through water placed in the container and out of said gas outlet.
Claim 2
Dependent Claim
122 words
A humidifier for delivered gases including a water container having a continuous sidewall, a top, and a bottom, an inlet for delivered gas on said container, an outlet for moistened and heated gas on said container electric heating means mounted to the bottom of the container, including heating elements and a temperature sensor, to warm water placed in the container to preset temperature levels, a gas dispersion plate mounted within said container closer to the bottom than to the top to define a gas rebound chamber therebelow, and tube means for conveying delivered gas below the dispersion plate into said rebound chamber, whereby gas moves upwardly through the dispersion plate through water placed in the container and out of said gas outlet.
Claim 3
Dependent Claim
52 words
The humidifier for delivered gases which includes the features of claim 1 above, wherein the heating elements of said means are within a heating housing mounted to the bottom of said container, said heating housing further including conducters and a connector plug, said plug having a passageway to receive a temperature probe.
Claim 4
Dependent Claim
53 words
A humidifier for delivered gases which includes the features of claim 2 above wherein said heating elements are positioned adjacent the bottom of the container, and which further includes insulation material to substantially fill the heating housing so that heat from said heating element is directed substantially towards the bottom of said container.
Claim 5
Dependent Claim
55 words
A humidifier for delivered gases which includes tHe features of claim 3 above, wherein said heating housing has a continuous sidewall, a floor portion and an open top wherein said heating elements are positioned adjacent the bottom of the container, and wherein said insulating material is positioned between the sidewall, floor and the heating elements.
Claim 6
Dependent Claim
45 words
A humidifier for delivered gases which includes the features of claim 4 above, wherein said insulating material is fibrous material, and which further includes a plurality of fixed buttons on the floor of the heating housing inside the heating housing to hold the fibrous material.
Claim 7
Dependent Claim
26 words
A humidifier for delivered gases which includes the features of claim 4 above wherein said heating housing is removably secured to the bottom of said container.
Claim 8
Dependent Claim
38 words
A humidifier for delivered gases which includes the features of claim 6 above wherein said heating housing is removably secured to the bottom of said container by overlapping respective sidewall portions of said container and said heating housing.
Claim 9
Dependent Claim
40 words
A humidifier for delivered gases which includes the features of claim 4 above wherein said heating housing is secured through the bottom of said container, whereby the container and the heating housing may be used and diposed as a unit.
Claim 10
Dependent Claim
41 words
A humidifier for delivered gases which includes the features of claim 8 above, wherein the container, the dispersion plate, the tube means, and the heating housing are formed of thermoplastic material which is stable up to at least about 100* F.
Claim 11
Dependent Claim
38 words
A humidifier for delivered gases which includes the features of claim 1 above, wherein said container top is a removable cap, and wherein said gas inlet and outlet are formed on a top, flat portion of said cap.
Claim 12
Dependent Claim
71 words
A humidifier for delivered gases which includes the features of claim 10 above wherein said dispersion plate includes an integrally formed and upwardly extending tube, wherein said top cap includes a downwardly extending tube having a passageway coaxial with the gas inlet passageway, and wherein the downwardly extending tube is telescoped within said upwardly extending tube to form a passageway in the gas inlet, the downwardly extending and upwardly extending tubes.
Claim 13
Dependent Claim
38 words
A humidifier for delivered gases which includes the features of claim 11 above wherein said dispersion plate and integral upwardly extending tube are removably seated on integrally formed flaps extending upwardly from the continuous sidewall of the container.
Claim 14
Dependent Claim
47 words
A humidifier for delivered gases which includes the features of claim 12 above wherein the downwardly extending tube is fitted with a one-way valve above the water level mark in the container to block entry of water vapor into a conduit mounted to the gas inlet tube.
Claim 15
Dependent Claim
57 words
A humidifier for delivered gases which includes the features of claim 11 above wherein the entire assembly of caps with integrally formed inlet, outlet and downwardly extending tubes; dispersion plate with integrally formed upwardly extending tube, container sidewalls, and heating housing is formed of thermoplastic material which is stable at temperatures of at least about 100* F.
Claim 16
Dependent Claim
49 words
A humidifier for delivered gases which includes the features of claim 14 above wherein the inlet and outlet extend normally to the top, flat portion of the cap, and wherein said inlet and outlet are formed by annular stepped walls to provide an anchoring grip for flexible, resilient tubing.
Claim 17
Dependent Claim
47 words
A humidifier for delivered gases which includes the features of claim 15 wherein the annular, stepped wall of the gas inlet has an aperture communicating the passageway of the inlet with ambient air to aid delivery of a gas for a source such as a respiratory unit.
Claim 18
Dependent Claim
94 words
A humidifier for delivered gases which includes the features of claim 1, which further includes means to maintain constant water level within the container, such means including a water reservoir, a water tube connecting a body of water in the reservoir with the body of water in the container, and a pressure Responsive tube connecting a pressured head in the reservoir to the pressure head in the container, whereby lowering of the water level in the container induces movement of water from the reservoir to maintain the water level in the container substantially constant.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-03 | 1977-03-05 | 1977-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-03 | 1981-03-05 | 1981-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-03 | 1985-03-05 | 1985-09-04 | $7700.00 | Window Closed / Lapsed |