US4148619A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flask and mechanical aerator
Assignee: Individual
•
Filing: 1977-08-19
•
Granted: 1979-04-10
•
Expires: 1997-08-19
Abstract
Abstract An aerator for use in the neck of a flask for increasing the flow of gas from the exterior to the interior of the flask. The aerator has a gas-impervious exterior wall a plurality of gas moving members are positioned within the wall and tend to urge gas through the aerator.
Inventors
- 👤 Daniel H. Deutsch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:33
CPC Classifications
B; B01; B01L; B01L3/00; B01L3/50; B01L3/508; B01L3/5082; B01L3/50825; B01L3/12
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
90 words
An apparatus for moving gas downwardly into the neck of a shaking flask, said apparatus comprising: a shaking flask having a neck portion; an aerator supported in the neck of said flask, said aerator having a gas-impervious exterior wall having an opening at the upper and lower ends thereof; and at least one free-swinging, hingedly-supported, downwardly-depending member affixed within said wall, whereby the shaking of the flask causes the member to swing back and forth resulting in a fanning action thus moving gas downwardly through the openings in the wall.
Claim 2
Independent Claim
90 words
An apparatus for moving gas downwardly into the neck of a shaking flask, said apparatus comprising: a shaking flask having a neck portion; an aerator supported in the neck of said flask, said aerator having a gas-impervious exterior wall having an opening at the upper and lower ends thereof; and at least one free-swinging, hingedly-supported, downwardly-depending member affixed within said wall, whereby the shaking of the flask causes the member to swing back and forth resulting in a fanning action thus moving gas downwardly through the openings in the wall.
Claim 3
Dependent Claim
19 words
The aerator of claim 1 wherein screen means are affixed across the upper and lower openings of said wall.
Claim 4
Dependent Claim
13 words
The aerator of claim 1 wherein there are a plurality of said members.
Claim 5
Dependent Claim
27 words
The aerator of claim 3 wherein said wall has a rectangular cross section, said members are rectangular and said members are hingedly suspended from one side thereof.
Claim 6
Dependent Claim
31 words
The aerator of claim 4 further including a plurality of stope which prevent said members from rising substantially above the horizontal plane of the side from which the members are supported.
Claim 7
Dependent Claim
22 words
The aerator of claim 3 wherein said wall is cylindrical and said members comprise half discs suspended from the bisecting edge thereof.
Claim 8
Dependent Claim
9 words
The aerator of claim 6 having three half discs.
Claim 9
Dependent Claim
22 words
The aerator of claim 7 wherein each half disc is in a different axial position with respect to every other half disc.
Claim 10
Dependent Claim
27 words
The aerator of claim 6 further including a plurality of stops which prevent said half discs from rising substantially above the horizontal plane of the bisecting edge.
Claim 11
Dependent Claim
13 words
The aerator of claim 9 wherein said aerator has three hingedly supported members.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-04-09 | 1982-10-09 | 1983-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-04-09 | 1986-10-09 | 1987-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-04-09 | 1990-10-09 | 1991-04-10 | $7700.00 | Window Closed / Lapsed |