US3795181A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flue cleaning device
Assignee: FLUE CLEANERS Inc
•
Filing: 1971-11-05
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Granted: 1974-03-05
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Expires: 1991-11-05
Abstract
Abstract A flue cleaning device adapted to be mounted in the interior of a flue having a fluid housing with a turbine mounted for rotational movement therein; a spray tube having a plurality of discharge jets disposed in spaced relation along the length thereof mounted on the turbine and extended axially of the flue; a receiving tray mounted below the fluid housing in vertical alignment with the flue; and a source of cleaning solution under pressure in operable connection to the fluid housing so that upon activation of the device, cleaning solution is forced into the fluid housing to drive the turbine and associated spray tube rotationally within the flue to discharge the solution under pressure from the discharge jets and against the interior of the flue in a uniform spray pattern to clean the flue and the solution and residue from the cleaning is gravitationally deposited in the receiving tray.
Inventors
- 👤 R Lawson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:45
CPC Classifications
F; F24; F24C; F24C15/00; F24C15/20; F24C15/2057; F23; F23J; F23J3/00; F23J3/02; F23J3/026; Y; Y10; Y10S; Y10S55/00; Y10S55/36
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
169 words
In combination with a hood, and a substantially cylindrical flue upwardly extended from the hood to exhaust air upwardly from the hood, an elongated spray tube, means mounting the spray tube permanently coaxially in the flue for rotrtion therein, means for supplying fluid under pressure to rotation tube whereby the fluid is sprayed in circumscribing relation to the tube on the interior of the flue to descend therealong, a lip mounted on the flue within the hood in circumscribing relation to the flue and downwardly and inwardly extended therefrom to direct fluid descending from the flue downwardly in an annular curtain, and fluid receiving means mounted within the hood in downwardly spaced relation thereto for the passage of air and air borne contaminants upwardly therebetween through said annular curtain of descending fluid and said fluid receiving means being mounted in substantial coaxial alignment with the flue and having circumscribing walls in outwardly and downwardly spaced relation to the lip to receive said curtain of fluid descending from the lip.
Claim 2
Dependent Claim
169 words
In combination with a hood, and a substantially cylindrical flue upwardly extended from the hood to exhaust air upwardly from the hood, an elongated spray tube, means mounting the spray tube permanently coaxially in the flue for rotrtion therein, means for supplying fluid under pressure to rotation tube whereby the fluid is sprayed in circumscribing relation to the tube on the interior of the flue to descend therealong, a lip mounted on the flue within the hood in circumscribing relation to the flue and downwardly and inwardly extended therefrom to direct fluid descending from the flue downwardly in an annular curtain, and fluid receiving means mounted within the hood in downwardly spaced relation thereto for the passage of air and air borne contaminants upwardly therebetween through said annular curtain of descending fluid and said fluid receiving means being mounted in substantial coaxial alignment with the flue and having circumscribing walls in outwardly and downwardly spaced relation to the lip to receive said curtain of fluid descending from the lip.
Claim 3
Dependent Claim
153 words
In combination with a hood, and a substantially cylindrical flue connected to the hood and upwardly extended therefrom adapted to convey air upwardly from the hood; a fluid receiving tray mounted in coaxial alignment with the flue in downwardly spaced relation to the hood to define an annular air passage between the hood and the tray and circumscribing the tray, an elongated spray tube having laterally disposed discharge ports, means mounting the spray tube substantially coaxially in the flue for rotation therein, drive means connected to the tube for rotating the tube in the flue, and means for supplying fluid under pressure to the tube whereby the fluid is sprayed on the interior of the flue gravitationally to descend therealong and downwardly from the flue through the air passage to wash impurities from the air passing upwardly through the annular passage, the tray being disposed to receive such fluid descending through said passage.
Claim 4
Dependent Claim
153 words
In combination with a hood, and a substantially cylindrical flue connected to the hood and upwardly extended therefrom adapted to convey air upwardly from the hood; a fluid receiving tray mounted in coaxial alignment with the flue in downwardly spaced relation to the hood to define an annular air passage between the hood and the tray and circumscribing the tray, an elongated spray tube having laterally disposed discharge ports, means mounting the spray tube substantially coaxially in the flue for rotation therein, drive means connected to the tube for rotating the tube in the flue, and means for supplying fluid under pressure to the tube whereby the fluid is sprayed on the interior of the flue gravitationally to descend therealong and downwardly from the flue through the air passage to wash impurities from the air passing upwardly through the annular passage, the tray being disposed to receive such fluid descending through said passage.
Claim 5
Dependent Claim
72 words
The flue cleaning device of claim 2 in which the driving meAns comprises a fluid housing having a turbine adapted for rotational movement therein and said turbine is in operable association with the spray tube whereby cleaning solution supplied to the fluid housing under pressure rotationally drives the turbine and spray tube within the flue to discharge the cleaning solution against the interior of the flue in a substantially uniform spray pattern.
Claim 6
Dependent Claim
66 words
The flue cleaning device of claim 2 in which the driving means comprises a fluid housing adapted for rotational movement and in operable connection with the spray tube whereby cleaning solution supplied to the driving means under pressure rotationally drives the fluid housing and spray tube within the flue to discharge the cleaning solution against the interior of the flue in a substantially uniform spray pattern.
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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) | 1977-03-04 | 1977-09-03 | 1978-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-04 | 1981-09-03 | 1982-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-04 | 1985-09-03 | 1986-03-05 | $7700.00 | Window Closed / Lapsed |