Patent US3593712A successfully refreshed from Google Patents.
US3593712A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ultrasonic nebulizer
Assignee: Allied Healthcare Products Inc
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Filing: 1968-07-01
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Granted: 1971-07-20
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Expires: 1988-07-01
Abstract
Abstract There is provided a nebulizer for use with oxygen tent equipment for controlled inhalation therapy. The nebulizer includes a vertical cylinder defining a liquid chamber with a piezoelectric transducer that closes the bottom of the chamber. A predetermined level of liquid is maintained in the chamber in direct contact with the transducer. A high frequency power source is connected to the transducer to provide ultrasonic vibrations thereof. The fluid in the chamber will be nebulized and suitable conduit means are provided for connecting the chamber to the gas flow from the oxygen tent equipment.
Inventors
- 👤 Robert L Weaver
- 👤 Frank D Myrice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:22
CPC Classifications
A; A61; A61M; A61M15/00; A61M15/0085; Y; Y10; Y10S; Y10S261/00; Y10S261/48; Y10S261/65
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
150 words
In an oxygen tent apparatus comprising a canopy, a temperature and flow control unit for regulating the flow of a gaseous medium to said canopy, and gas conduit means for connecting said unit and said canopy to provide a flow of gaseous medium between said unit and said canopy, the improvement comprising: an ultrasonic nebulizer for entraining minute particles of liquid into a gaseous medium including a housing defining a vapor chamber positioned adjacent said gas conduit means and in close proximity to the junction of said gas conduit means with said canopy, a pair of conduits connecting said conduit means to the interior of said nebulizer housing, a first of which conduits opens into said gas conduit means facing upstream and a second of which conduits opens into said gas conduit means facing downstream, to direct a portion of the gaseous flow into said canopy through said vapor chamber.
Claim 2
Dependent Claim
150 words
In an oxygen tent apparatus comprising a canopy, a temperature and flow control unit for regulating the flow of a gaseous medium to said canopy, and gas conduit means for connecting said unit and said canopy to provide a flow of gaseous medium between said unit and said canopy, the improvement comprising: an ultrasonic nebulizer for entraining minute particles of liquid into a gaseous medium including a housing defining a vapor chamber positioned adjacent said gas conduit means and in close proximity to the junction of said gas conduit means with said canopy, a pair of conduits connecting said conduit means to the interior of said nebulizer housing, a first of which conduits opens into said gas conduit means facing upstream and a second of which conduits opens into said gas conduit means facing downstream, to direct a portion of the gaseous flow into said canopy through said vapor chamber.
Claim 3
Dependent Claim
47 words
The combination set forth in claim 1 wherein the nebulizer includes means for maintaining a level of liquid in the vapor chamber, a piezoelectric transducer at the bottom of the vapor chamber, and high frequency electrical power source means connected to said transducer for energizing said transducer.
Claim 4
Dependent Claim
19 words
The combination set forth in claim 1 including a reservoir of liquid connected to supply liquid to said chamber.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-19 | 1975-01-18 | 1975-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-19 | 1979-01-18 | 1979-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-19 | 1983-01-18 | 1983-07-20 | $7700.00 | Window Closed / Lapsed |