US3791103A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of treating waste gas arising from industrial facility
Assignee: JGC Corp
•
Filing: 1972-06-30
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Granted: 1974-02-12
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Expires: 1992-06-30
Abstract
Abstract A method of treating waste gas containing harmful components arising from an industrial facility by the use of a waste-gas treating equipment, which comprises the provision of an open bypass duct leading directly from the outlet for waste gas of the industrial facility to the exhaust system and a duct equipped with a blower and a waste gas treating equipment which branches off said bypass duct to lead to the exhaust system, said blower working to pass at least the whole quantity of the waste gas generated in the industrial facility through said waste gas treating equipment.
Inventors
- 👤 K Kusano
- 👤 K Miyata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:39
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/34; B01D53/46; B01D53/48
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
26 words
A method of treating waste gas according to claim 1, wherein said industrial facility generating a is a combustion furnace, reactor, drying equipment, or melting furnace.
Claim 2
Dependent Claim
28 words
A method of treating waste gas according to claim 1, wherein the waste gas treating equipment is a wet SO2 eliminator, dust catcher, solvent adsorption reclaimer or deodorizer.
Claim 3
Dependent Claim
53 words
A method according to claim 1, in which the entirety of the waste gas together with said portion of said treated gas are impelled by a gas-moving device through said waste gas treating equipment, said gas-moving device having a volumetric capacity larger than the volume of waste gas generated in said industrial facility.
Claim 4
Dependent Claim
31 words
A method of treating waste gas according to claim 1, wherein the remainder of the treated gas is flowed through an afterburner, white-smoke eliminator or post-treating apparatus and then is discharged.
Claim 5
Dependent Claim
36 words
A method of treating waste gas according to claim 1, wherein the waste gas contains harmful components composed of a member or members selected from the group consisting of SO2, H2S, NOx, CS2 and gaseous solvent.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-02-11 | 1977-08-13 | 1978-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-11 | 1981-08-13 | 1982-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-11 | 1985-08-13 | 1986-02-12 | $7700.00 | Window Closed / Lapsed |