US3830041A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foam breaker
Assignee: Environeering Inc
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Filing: 1973-09-18
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Granted: 1974-08-20
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Expires: 1993-09-18
Abstract
Abstract A wet foam type gas scrubber for cleaning industrial gases and the like comprising foam generating means including a chamber having an inlet for gas and an outlet for foam. Grid means is provided in said chamber between said inlet and outlet and extending transverse to the gas flow therebetween for dividing the gas flow into a plurality of separate streams. Said grid means comprises a plurality of elongated strips interconnected to form a plurality of discrete flow passages and the strips have thin, knife-like edges facing into the direction of gas flow for dividing the same into separate streams. Means is included for wetting said grid means with liquid foaming agent to generate a mass of moving, liquid film, foam bubbles enveloping small discrete volumes of said gas therein. Foam breaker means using gravity and centrifugal force is provided to collapse and break down the foam bubbles into liquid and release the cleansed gas therefrom.
Inventors
- 👤 G Huppke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:19
CPC Classifications
B; B01; B01D; B01D53/00; B01D47/00; B01D47/04; B01D47/06; B01D53/14; B01D53/1412; F; F04; F04D; F04D17/00; F04D17/08; F04D17/16; F04D17/164; F04D25/00; F04D25/16; F04D25/166
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
138 words
Apparatus for separating a stream of gas filled liquid film foam bubbles into liquid and gas comprising: centrifugal fan means including a housing having an inlet for foam and a peripheral scroll with a tangential discharge outlet, a rotor in said housing centrifuging said foam outwardly forming a liquid stream adjacent said peripheral scroll by collapsing the bubbles and releasing the gas for discharge through said outlet, an enclosed tank for holding said liquid and including a gas space above an upper surface of said liquid, conduit means in communication between said housing of said fan means and said tank including means for angularly diverting said liquid stream away from said gaS stream to discharge into the liquid held in said tank, and means for removing any foam reformed in said tank space above said upper liquid surface.
Claim 2
Dependent Claim
138 words
Apparatus for separating a stream of gas filled liquid film foam bubbles into liquid and gas comprising: centrifugal fan means including a housing having an inlet for foam and a peripheral scroll with a tangential discharge outlet, a rotor in said housing centrifuging said foam outwardly forming a liquid stream adjacent said peripheral scroll by collapsing the bubbles and releasing the gas for discharge through said outlet, an enclosed tank for holding said liquid and including a gas space above an upper surface of said liquid, conduit means in communication between said housing of said fan means and said tank including means for angularly diverting said liquid stream away from said gaS stream to discharge into the liquid held in said tank, and means for removing any foam reformed in said tank space above said upper liquid surface.
Claim 3
Dependent Claim
35 words
The apparatus of claim 1 including second fan means having an inlet and an outlet, and second conduit means interconnecting said outlet of said centrifugal fan means and said inlet of said second fan means.
Claim 4
Dependent Claim
28 words
The apparatus of claim 2 wherein said foam removing means includes third conduit means interconnecting said space of said tank and said inlet of said second fan means.
Claim 5
Dependent Claim
49 words
The apparatus of claim 2 wherein said second fan means comprises a centrifugal fan having a housing with a peripheral scroll and rotor in said housing centrifuging any liquid introduced therein into a stream adjacent said scroll, and return conduit means for angularly diverting said stream into said tank.
Claim 6
Dependent Claim
37 words
The apparatus of claim 1 in combination with a soaking chamber connected to discharge said stream of foam into said inlet of said centrifugal fan means and second conduit means interconnecting said soaking chamber and said tank.
Claim 7
Dependent Claim
40 words
The apparatus of claim 5 in combination with a foam generator means for supplying foam bubbles for soaking in said soaking chamber and liquid conduit means for supplying liquid from said tank to said foam generator means for making foam.
Claim 8
Dependent Claim
166 words
Apparatus for breaking up a flowing stream of foam bubbles into separate liquid and gas components comprising: first fan means including a housing and a foam impacting centrifugal rotor therein, said housing having a foam inlet and a peripheral scroll with a tangential discharge outlet, said rotor collapsing said foam to separate liquid and gas components of said foam and forming a liquid stream adjacent said scroll, accumulator means in communication with said outlet for receiving and containing at least some of the liquid discharged from aid first fan means and including an enclosed gas space, means in communication between said housing and said accumulator means for angularly diverting said separated liquid stream from the gas of said collapsed foam for discharge into the liquid in said accumulator means, and second fan means said a housing and a foam impacting centrifugal rotor therein, aid housing including an inlet in communication with said gas space of said accumulator means and a peripheral scroll with a discharge outlet.
Claim 9
Dependent Claim
166 words
Apparatus for breaking up a flowing stream of foam bubbles into separate liquid and gas components comprising: first fan means including a housing and a foam impacting centrifugal rotor therein, said housing having a foam inlet and a peripheral scroll with a tangential discharge outlet, said rotor collapsing said foam to separate liquid and gas components of said foam and forming a liquid stream adjacent said scroll, accumulator means in communication with said outlet for receiving and containing at least some of the liquid discharged from aid first fan means and including an enclosed gas space, means in communication between said housing and said accumulator means for angularly diverting said separated liquid stream from the gas of said collapsed foam for discharge into the liquid in said accumulator means, and second fan means said a housing and a foam impacting centrifugal rotor therein, aid housing including an inlet in communication with said gas space of said accumulator means and a peripheral scroll with a discharge outlet.
Claim 10
Dependent Claim
25 words
The apparatus of claim 7 including means for directing at least some of the liquid discharged from said second fan means into said accumulator means.
Claim 11
Dependent Claim
24 words
The apparatus of claim 7 including scrubbing means in communication with the outlet of said second fan means for treating the gas discharged therefrom.
Claim 12
Dependent Claim
29 words
The apparatus of claim 7 including conduit means for directing liquid discharged from said first fan means into said accumulator means below the upper level of liquid contained therein.
Claim 13
Dependent Claim
28 words
The apparatus of claim 7 including conduit means for directing gas discharged from the outlet of said first fan means into the inlet of said second fan means.
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) | 1977-08-19 | 1978-02-18 | 1978-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-19 | 1982-02-18 | 1982-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-19 | 1986-02-18 | 1986-08-20 | $7700.00 | Window Closed / Lapsed |