US3922722A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for protective operator{3 s respiratory organs against aerosols
Assignee: Individual
•
Filing: 1974-12-19
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Granted: 1975-12-02
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Expires: 1994-12-19
Abstract
Abstract A device for protecting the operator''s respiratory organs against aerosols comprises a protective housing provided with a light filter and a perforated pipe which is located on the outside of the housing under the light filter. The pipe has a length which is at least, equal to that of the light filter and is closed at one end, with the pipe being used to divert the aerosol flow from the operator with the aid of air coming out of the pipe perforations. The proposed device provides favourable working conditions for the operator since it eliminates biological effects of the conditioned air detrimental to man.
Inventors
- 👤 Igor Konstantinovich Pokhodnya
- 👤 Igor Mikhailovich Naumenko
- 👤 Vladimir Nikolaevich Golovko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:55
CPC Classifications
A; A61; A61F; A61F9/00; A61F9/04; A61F9/06; A61F9/068
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
92 words
A device for protecting the operator''s respiratory organs against detrimental aerosols while breathing ambient air, comprising, in combination: a protective housing provided with a light filter and a perforated pipe having an end connected to a comprEssed air duct, characterised in that the perforated pipe is located on the outside of the housing under the light filter, has a length equal, at least, to that of the light filter, and is closed at another end thereof so as to blow the aerosols up and away from the housing to prevent inhalation thereof.
Claim 2
Independent Claim
92 words
A device for protecting the operator''s respiratory organs against detrimental aerosols while breathing ambient air, comprising, in combination: a protective housing provided with a light filter and a perforated pipe having an end connected to a comprEssed air duct, characterised in that the perforated pipe is located on the outside of the housing under the light filter, has a length equal, at least, to that of the light filter, and is closed at another end thereof so as to blow the aerosols up and away from the housing to prevent inhalation thereof.
Claim 3
Dependent Claim
44 words
A device according to claim 1, wherein the pipe is located so that perforations thereof are directed with respect to a plane of the light filter at an angle Alpha confined within a range of 0* - 60*thereby blowing the aerosols in one direction.
References Cited (Backward Citations)
US1464883A
Cited
US2333054A
Cited
US2444393A
Cited
US2882894A
Cited
US2971196A
Cited
US3231897A
Cited
US3535707A
Cited
US3605766A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-12-01 | 1979-06-02 | 1979-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-01 | 1983-06-02 | 1983-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-01 | 1987-06-02 | 1987-12-02 | $7700.00 | Window Closed / Lapsed |