US3777571A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Exhaled air collecting vessel
Assignee: Individual
•
Filing: 1972-04-07
•
Granted: 1973-12-11
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Expires: 1992-04-07
Abstract
Abstract Improved sampling of air in a device for collecting exhaled air, for example in the analysis of gases exhaled by a person under examination. The gas is collected in a chamber defined by an inner container with perforated walls surrounded by an outer inflatable bag, and this invention provides improved sampling by extracting air from the chamber through an extension having a number of spaced apart air entry apertures leading into said chamber.
Inventors
- 👤 E Jaeger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:10
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/08; A61B5/091; A61B5/093
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
118 words
An exhaled air collecting device for use in measuring variations in the quantity of gaseous material exhaled by a person under examination, said collecting device Comprising: an inner container having a container wall, an inlet for exhaled air and an outlet leading to the atmosphere; means defining at least one opening in said container wall; an easily inflatable bag surrounding said container wall and, together with the interior of the inner container, defining a collecting chamber for the exhaled air; an air extraction pipe connected to said chamber, and the improvement which consists in extension means leading into said exhaled air collecting chamber, said extension means being provided with a plurality of mutually spaced apart air entry apertures.
Claim 2
Dependent Claim
118 words
An exhaled air collecting device for use in measuring variations in the quantity of gaseous material exhaled by a person under examination, said collecting device Comprising: an inner container having a container wall, an inlet for exhaled air and an outlet leading to the atmosphere; means defining at least one opening in said container wall; an easily inflatable bag surrounding said container wall and, together with the interior of the inner container, defining a collecting chamber for the exhaled air; an air extraction pipe connected to said chamber, and the improvement which consists in extension means leading into said exhaled air collecting chamber, said extension means being provided with a plurality of mutually spaced apart air entry apertures.
Claim 3
Dependent Claim
36 words
The collecting device claimed in claim 1, wherein said extension means comprises a tube having a wall which is provided with a number of said air entry apertures distributed in the longitudinal direction of the tube.
Claim 4
Dependent Claim
15 words
The collecting device claimed in claim 1, wherein said air entry apertures have different sizes.
Claim 5
Dependent Claim
31 words
The collecting device claimed in claim 3, wherein the size of said air entry apertures increases in a direction towards the end of said extension means remote from said extraction pipe.
Claim 6
Dependent Claim
28 words
The collecting device claimed in claim 1, wherein the portion of the extension means which is provided with the air entry apertures is situated outside said inner container.
Claim 7
Dependent Claim
37 words
The collecting device claimed in claim 5, wherein the said apertured portion of the extension means is secured to the outside of the inner container and extends substantially parallel to the longitudinal axis of said inner container.
References Cited (Backward Citations)
US3661528A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-10 | 1977-06-11 | 1977-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-10 | 1981-06-11 | 1981-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-10 | 1985-06-11 | 1985-12-11 | $7700.00 | Window Closed / Lapsed |