US3853506A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pollution control apparatus and method
Assignee: PIRCON DOLORES R TRUSTEE DOLORES R PIRCON STOCK AND PATENT TRUST UNDER DECLARATION OF TRUST DATED 6/26/90
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Filing: 1971-10-18
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Granted: 1974-12-10
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Expires: 1991-10-18
Abstract
Abstract Apparatus for removing pollutants from a gas stream comprises a chamber having a gas stream inlet, a gas stream outlet and a pollutant discharge opening. An endless travelling belt of substantially imperforate material is arranged generally within the chamber with a portion of it confronting the gas stream inlet in impingeable relationship with the entering gas stream.
Inventors
- 👤 L Pircon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:55
CPC Classifications
B; B01; B01J; B01J19/00; B01J19/18; B01J19/22; B01D; B01D45/00; B01D45/04; B01D45/08; B01D47/00; B01D47/10
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
94 words
THE METHOD OF REMOVING POLLUTANTS FROM A GAS STREAM COMPRISING THE STEPS OF: A. DIRECTING A MOVING POLLUTANT-CONTAINING GAS STREAM THROUGH A GAS STREAM INLET CONFRONTING THE CONCAVE PORTION OF AN ENDLESS TRAVELING BELT OF SUBSTANTIALLY IMPERFORATE MATERIAL DISPOSED WITHIN A CHAMER WITH AN IMPINGEMENT PORTION THEREOF CONFRONTING SAID GAS STREAM INLET; B. DRIVING SAID BELT TRAINED OVER AN IDLER ROLER WHICH IS SPACED FROM A DRIVING MEANS AND INCLUDES AN ADJUSTMENT MEANS TO PROVIDE SAID CONCAVITY; C. REMOVING THE POLLUTANT IMPINGED ON SAID TRAVELING BELT, AND; D. SEPARATELY REMOVING THE CLEAN GAS STREAM.
Claim 2
Independent Claim
94 words
THE METHOD OF REMOVING POLLUTANTS FROM A GAS STREAM COMPRISING THE STEPS OF: A. DIRECTING A MOVING POLLUTANT-CONTAINING GAS STREAM THROUGH A GAS STREAM INLET CONFRONTING THE CONCAVE PORTION OF AN ENDLESS TRAVELING BELT OF SUBSTANTIALLY IMPERFORATE MATERIAL DISPOSED WITHIN A CHAMER WITH AN IMPINGEMENT PORTION THEREOF CONFRONTING SAID GAS STREAM INLET; B. DRIVING SAID BELT TRAINED OVER AN IDLER ROLER WHICH IS SPACED FROM A DRIVING MEANS AND INCLUDES AN ADJUSTMENT MEANS TO PROVIDE SAID CONCAVITY; C. REMOVING THE POLLUTANT IMPINGED ON SAID TRAVELING BELT, AND; D. SEPARATELY REMOVING THE CLEAN GAS STREAM.
Claim 3
Dependent Claim
27 words
The method according to claim 1 which further comprises the step of increasing the velocity of the gas stream prior to its engagement with the travelling member.
Claim 4
Dependent Claim
43 words
The method of claim 1 which further comprises the step of introducing liquid spray into said gas stream prior to directing said gas stream against said imperforate member and separately removing the clean gas stream through a tortuous pathway to eliminate liquid droplets.
Claim 5
Dependent Claim
90 words
Apparatus for removing pollutants from a gas stream comprising: a chamber having a gas stream inlet, a gas stream outlet and a pollutant discharge opening; an endless travelling belt of substantially imperforate material disposed generally within said chamber with an impingement portion thereof confronting said gas stream inlet, said impingement portion having concavity opposite to said gas stream inlet; drive means for producing movement of said belt; and an idler roller over which said belt is trained and spaced from said drive means, including adjustment means to provide said concavity.
Claim 6
Dependent Claim
90 words
Apparatus for removing pollutants from a gas stream comprising: a chamber having a gas stream inlet, a gas stream outlet and a pollutant discharge opening; an endless travelling belt of substantially imperforate material disposed generally within said chamber with an impingement portion thereof confronting said gas stream inlet, said impingement portion having concavity opposite to said gas stream inlet; drive means for producing movement of said belt; and an idler roller over which said belt is trained and spaced from said drive means, including adjustment means to provide said concavity.
Claim 7
Dependent Claim
17 words
Apparatus according to claim 1 which further includes a spray device ahead of said gas stream inlet.
Claim 8
Dependent Claim
20 words
Apparatus according to claim 4 which further includes liquid-containing tank means submerging said pollutant discharge opening to provide a seal.
Claim 9
Dependent Claim
26 words
Apparatus according to claim 4 which further includes mechanically cleaning means engaging said belt beyond the region of gas impingement in the direction of belt travel.
Claim 10
Dependent Claim
19 words
Apparatus according to claim 4 which further includes liquid discharge means focussed to direct scrubbing liquids toward said belt.
Claim 11
Dependent Claim
19 words
Apparatus according to claim 4 which further comprises gas stream velocity increasing means disposed in said gas stream inlet.
Claim 12
Dependent Claim
16 words
Apparatus according to claim 9 wherein said gas stream velocity increasing means is a convergent cone.
Claim 13
Dependent Claim
24 words
Apparatus according to claim 4 which further includes tower eliminator means connected to the gas stream outlet of said chamber to eliminate liquid droplets.
Claim 14
Dependent Claim
19 words
Apparatus according to claim 11 which further includes gas stream velocity increasing means disposed in said tower eliminator means.
Claim 15
Dependent Claim
26 words
Apparatus according to claim 11 wherein said tower eliminator means comprises a plurality of conduit sections connected in sequence and offset with respect to each other.
Claim 16
Dependent Claim
18 words
Apparatus according to claim 13 wherein said tower eliminator means further includes baffle means in said conduit sections.
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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) | 1977-12-09 | 1978-06-10 | 1978-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-09 | 1982-06-10 | 1982-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-09 | 1986-06-10 | 1986-12-10 | $7700.00 | Window Closed / Lapsed |