Patent US3685262A successfully refreshed from Google Patents.
US3685262A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-leveling grateless stack gas scrubber
Assignee: Individual
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Filing: 1970-05-25
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Granted: 1972-08-22
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Expires: 1990-05-25
Abstract
Abstract A counter-current solid-gas scrubber for the removal of SO2 and other undesirable components from stack gas has been invented. The construction of the chamber allows self-leveling of the solids and continuous flow of particulate solids and gases without grates or agitation. The chamber has a plate on the inside which extends downwardly such that a space is formed below the plate. The plate has a gas exit formed by the space below.
Inventors
- 👤 Leonard J Kressley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:50
CPC Classifications
F; F28; F28C; F28C3/00; F28C3/10; F28C3/12; F28C3/14; F23; F23J; F23J2217/00; F23J2217/10; F23J2217/105
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
211 words
An apparatus for contacting a gas with a solid in a countercurrent movement comprising a housing defining a contact chamber having an exit for gas, sides to contain a bed of particulate solid, and a bottom having a plurality of passages essentially parallel to the angle of repose of the particulate solid, each passage having a first plate pivotally mounted on the bottom of the housing and extended downward from the passageway and a second plate pivotally mounted on the first plate to form an obtuse angle with the upper surface of the first plate; and a feed means for particulate solid adjunct the housing and connected to the contact chamber by a conduit situated at the top of said contact chamber to permit gravity flow of said particulate solid through the contact chamber, said conduit comprising the upper portion of the sides of said housing and an inner plate connected to an inner periphery of said housing above a means defining an exit for gas, and extending at an angle downward whereby said conduit meets said contact chamber below the exit for gas; and an inlet for gas below the passages; and a receiving means below the passages to receive the particulate solid as it is discharged from the housing.
Claim 2
Independent Claim
211 words
An apparatus for contacting a gas with a solid in a countercurrent movement comprising a housing defining a contact chamber having an exit for gas, sides to contain a bed of particulate solid, and a bottom having a plurality of passages essentially parallel to the angle of repose of the particulate solid, each passage having a first plate pivotally mounted on the bottom of the housing and extended downward from the passageway and a second plate pivotally mounted on the first plate to form an obtuse angle with the upper surface of the first plate; and a feed means for particulate solid adjunct the housing and connected to the contact chamber by a conduit situated at the top of said contact chamber to permit gravity flow of said particulate solid through the contact chamber, said conduit comprising the upper portion of the sides of said housing and an inner plate connected to an inner periphery of said housing above a means defining an exit for gas, and extending at an angle downward whereby said conduit meets said contact chamber below the exit for gas; and an inlet for gas below the passages; and a receiving means below the passages to receive the particulate solid as it is discharged from the housing.
Claim 3
Dependent Claim
22 words
The apparatus of claim 1 wherein the first plate forms an acute angle with the passageway in the bottom of the housing.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-08-22 | 1976-02-21 | 1976-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-22 | 1980-02-21 | 1980-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-22 | 1984-02-21 | 1984-08-22 | $7700.00 | Window Closed / Lapsed |