Patent US3871305A successfully refreshed from Google Patents.
US3871305A
Expired / Lapsed
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Apparatus for use in quenching and absorbing gas emanating from a waste incinerator
Assignee: Kureha Corp
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Filing: 1973-06-20
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Granted: 1975-03-18
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Expires: 1993-06-20
Abstract
Abstract An apparatus for use in quenching and absorbing gas emanating from a waste incinerator including a gas inlet pipe and a quenching tower. The gas inlet pipe has an end section of a diameter smaller than that of the quenching tower which is telescoped within the quenching tower to define an annular space. Means are provided to introduce a fluid within the annular space to form a fluid seal between the pipe and the tower and to produce a film flow of fluid on the interior surface of the quenching tower.
Inventors
- 👤 Tetsuya Watanabe
- 👤 Noboru Suzuki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:11
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/34; B01D53/46; B01D53/60; F; F23; F23J; F23J15/00
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
172 words
An apparatus for use in quenching and absorbing gas emanating from a waste incinerator, said apparatus comprising a pipe connected to said waste incinerator for receiving said gas, fluid spray means disposed in said pipe, a quenching tower having an open, upper end portion, said pipe having an end portion of a diameter smaller than the diameter of said quenching tower and telescoped within said open end portion of said tower to define an annular space between said telescoping portion, a cover extending from a non-telescoping portion of said pipe and over said open end portion of said tower, a water sink supported by said tower, said sink enclosing said cover and having a portion extending above said cover, means to introduce a fluid into said sink to flow into said annular space, and means for adjusting the flow rate of said fluid into said sink whereby said fluid flows over the interior surface of said tower and submerges said cover to form a fluid seal between said cover and said pipe.
Claim 2
Independent Claim
172 words
An apparatus for use in quenching and absorbing gas emanating from a waste incinerator, said apparatus comprising a pipe connected to said waste incinerator for receiving said gas, fluid spray means disposed in said pipe, a quenching tower having an open, upper end portion, said pipe having an end portion of a diameter smaller than the diameter of said quenching tower and telescoped within said open end portion of said tower to define an annular space between said telescoping portion, a cover extending from a non-telescoping portion of said pipe and over said open end portion of said tower, a water sink supported by said tower, said sink enclosing said cover and having a portion extending above said cover, means to introduce a fluid into said sink to flow into said annular space, and means for adjusting the flow rate of said fluid into said sink whereby said fluid flows over the interior surface of said tower and submerges said cover to form a fluid seal between said cover and said pipe.
Claim 3
Dependent Claim
16 words
The apparatus of claim 1 wherein said pipe is made of carbon, silicon nitride or ceramic.
Claim 4
Dependent Claim
18 words
The apparatus of claim 1 wherein said fluid introduction means comprises an inlet opening extending through said sink.
Claim 5
Dependent Claim
21 words
The aPparatus of claim 1 further comprising water sprinkling means exterior to and surrounding said pipe and positioned above said cover.
Claim 6
Dependent Claim
14 words
The apparatus of claim 1 wherein said tower is made of a synthetic resin.
Claim 7
Dependent Claim
18 words
The apparatus of claim 1 wherein said tower is lined on its interior surface with a synthetic rubber.
Claim 8
Dependent Claim
15 words
The apparatus of claim 1 wherein the horizontal cross-sectional configuration of said tower is circular.
Claim 9
Dependent Claim
21 words
The apparatus of claim 1 further comprising a water reservoir beneath said tower to hold water for recirculation to said sink.
Claim 10
Dependent Claim
31 words
The apparatus of claim 1 wherein the top edge of said tower has a plurality of notches to produce uniform film flow along and over the interior surface of said tower.
Claim 11
Dependent Claim
53 words
The apparatus of claim 1 wherein said cover comprises an annular top portion extending around said pipe, and a vertical cylindrical skirt portion extending downwardly from said top portion and over the upper end portion of said tower in a spaced relation thereto, at least one aperture being formed through said skirt portion.
Claim 12
Dependent Claim
47 words
The apparatus of claim 10 wherein said sink comprises a vertical cylindrical wall surrounding and spaced from said skirt portion of said cover, the top edge of said vertical cylindrical wall extending above said top portion of said cover and above the top edge of said tower.
Claim 13
Dependent Claim
25 words
The apparatus of claim 10 wherein said annular top portion of said cover is sloped radially downward toward its center to define a depression therein.
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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) | 1978-03-17 | 1978-09-16 | 1979-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-17 | 1982-09-16 | 1983-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-17 | 1986-09-16 | 1987-03-18 | $7700.00 | Window Closed / Lapsed |