US3894537A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Steam nebulizer
Assignee: Individual
•
Filing: 1974-02-07
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Granted: 1975-07-15
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Expires: 1994-02-07
Abstract
Abstract A nebulizer with a downwardly open housing is seated atop a steam generator whose nozzle penetrates into the housing on one side of a baffle which intercepts the steam issuing from a lateral nozzle orifice. A Venturi fitting connected to a source of pressurized air or oxygen creates suction in a channel partly obstructed by the baffle, the steam being thereby aspirated around the baffle together with ambient air entering the housing from below. The Venturi fitting is part of a hose clipped to the housing, this hose leading to a face mask allowing a patient to inhale the mixture of oxygen and moist air.
Inventors
- 👤 Nat Camp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:20
CPC Classifications
A; A61; A61M; A61M11/00; A61M11/06; A61M11/065; A61M16/00; A61M16/10; A61M16/12; A61M16/122; A61M16/125; A61M16/14; A61M16/16; A61M11/005; A61M16/06
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
157 words
A nebulizer comprising a housing provided with an internal channel, a generally transverse baffle partly obstructing said channel, said housing having an entrance for ambient air communicating with said channel in the vicinity of said baffle, inlet means opening into said channel on one side of said baffle for directing a jet of steam thereagainst, a Venturi fitting connectable to a source of pressurized gas communicating with said channel on the opposite side of said baffle for continuously aspirating ambient air through said entrance together with steam particles deflected by said baffle to form a mist, said channel having an outlet at said opposite side for discharging the mistladen aspirated air, and a vaporizer having a top surface provided with a steam nozzle rising therefrom, said housing being downwardly open and seated on said top surface, said inlet means including a formation on said housing accommodating said nozzle, said top surface forming a bottom for said channel.
Claim 2
Dependent Claim
157 words
A nebulizer comprising a housing provided with an internal channel, a generally transverse baffle partly obstructing said channel, said housing having an entrance for ambient air communicating with said channel in the vicinity of said baffle, inlet means opening into said channel on one side of said baffle for directing a jet of steam thereagainst, a Venturi fitting connectable to a source of pressurized gas communicating with said channel on the opposite side of said baffle for continuously aspirating ambient air through said entrance together with steam particles deflected by said baffle to form a mist, said channel having an outlet at said opposite side for discharging the mistladen aspirated air, and a vaporizer having a top surface provided with a steam nozzle rising therefrom, said housing being downwardly open and seated on said top surface, said inlet means including a formation on said housing accommodating said nozzle, said top surface forming a bottom for said channel.
Claim 3
Dependent Claim
20 words
A nebulizer as defined in claim 1 wherein said housing is provided with gripper jaws releasably holding said Venturi fitting.
Claim 4
Dependent Claim
27 words
A nebulizer as defined in claim 2 wherein said pressurized gas is rich in oxygen, said fitting being part of a conduit terminating in a face mask.
Claim 5
Dependent Claim
24 words
The combination defined in claim 1 wherein said top surface terminates short of said Venturi fitting to define at least part of said entrance.
Claim 6
Dependent Claim
48 words
The combination defined in claim 4 wherein said Venturi fitting is provided with a first lateral port, facing a discharge orifice of said nozzle across said baffle, and with a second lateral port open toward the atmosphere for direct entrainment of additional atmospheric air by said pressurized gas.
Claim 7
Dependent Claim
31 words
The combination defined in claim 4 wherein said housing is provided with an aperture downstream of said baffle for admitting additional atmospheric air into said channel ahead of said Venturi fitting.
Claim 8
Dependent Claim
30 words
The combination defined in claim 1 wherein said pressurized gas is rich in oxygen, further including a breathing implement and a conduit extending from said Venturi fitting to said implement.
Claim 9
Dependent Claim
29 words
The combination defined in claim 7 wherein said Venturi fitting is an integral part of said conduit, said housing being provided with gripper jaws releasably holding said Venturi fitting.
Claim 10
Dependent Claim
153 words
A nebulizer comprising: a housing having a first end, a second end, and an elongated open-sided channel extending therebetween to facilitate the entrance of ambient air into its interior; a baffle disposed transversely in the interior of said channel terminating short of the open side of said channel, said baffle being spaced from said ends; inlet means at said first end of said housing connectable to a source of steam for training a jet of steam onto said baffle whereby the steam is deflected towArd said open side for mixing with ambient air to form a mist; suction means, adapted to be connected to a breathing device; at said second end of said housing for continuously aspirating said mist from the region of said open side for delivery to the breathing device; and mounting means on said housing for holding said suction means at said second end in a position confronting said baffle.
Claim 11
Dependent Claim
153 words
A nebulizer comprising: a housing having a first end, a second end, and an elongated open-sided channel extending therebetween to facilitate the entrance of ambient air into its interior; a baffle disposed transversely in the interior of said channel terminating short of the open side of said channel, said baffle being spaced from said ends; inlet means at said first end of said housing connectable to a source of steam for training a jet of steam onto said baffle whereby the steam is deflected towArd said open side for mixing with ambient air to form a mist; suction means, adapted to be connected to a breathing device; at said second end of said housing for continuously aspirating said mist from the region of said open side for delivery to the breathing device; and mounting means on said housing for holding said suction means at said second end in a position confronting said baffle.
Claim 12
Dependent Claim
50 words
A nebulizer as defined in claim 9, further comprising cover means outside said housing partly obstructing said open side for limiting the escape of said mist from said housing, said cover means extending from the region of said inlet means past said baffle and terminating short of said suction means.
Claim 13
Dependent Claim
22 words
A nebulizer as defined in claim 9 wherein said inlet means comprises a nozzle oriented substantially at right angles to said baffle.
References Cited (Backward Citations)
US3612048A
Cited
US3714944A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-07-14 | 1979-01-13 | 1979-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-14 | 1983-01-13 | 1983-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-14 | 1987-01-13 | 1987-07-15 | $7700.00 | Window Closed / Lapsed |