US3834128A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid clarifying apparatus for removing particles from a gas stream
Assignee: Environmental Maintenance Corp
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Filing: 1972-12-04
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Granted: 1974-09-10
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Expires: 1992-12-04
Abstract
Abstract Apparatus for treating a scrubbing liquid to remove coagulants and suspended particulate matter before reuse or discharge of liquid where the suspended particles are caused to flocculate onto the coagulants.
Inventors
- 👤 G Gardiner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:33
CPC Classifications
B; B01; B01D; B01D47/00; B01D47/02; B01D47/021
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
126 words
In combination with a particle collection device using a liquid as a scrubbing agent and having coagulated solids and pArticles in suspension therein, a receiver for holding a flocculating agent, a mixer, first liquid conduit means connecting said device and said mixer, second liquid conduit means connecting said receiver to said mixer, said mixer being arranged to agitate the flocculating agent and the liquid to cause the suspended particles to flocculate on the coagulated particles, third conduit means connecting said mixer to a particle size classifying device, said classifier being effective to separate the coagulated and flocculated particles from the liquid, fourth conduit means connecting said classifying device to a solids collector, and fifth conduit means for returning liquid from said solids collector to said mixer.
Claim 2
Dependent Claim
126 words
In combination with a particle collection device using a liquid as a scrubbing agent and having coagulated solids and pArticles in suspension therein, a receiver for holding a flocculating agent, a mixer, first liquid conduit means connecting said device and said mixer, second liquid conduit means connecting said receiver to said mixer, said mixer being arranged to agitate the flocculating agent and the liquid to cause the suspended particles to flocculate on the coagulated particles, third conduit means connecting said mixer to a particle size classifying device, said classifier being effective to separate the coagulated and flocculated particles from the liquid, fourth conduit means connecting said classifying device to a solids collector, and fifth conduit means for returning liquid from said solids collector to said mixer.
Claim 3
Dependent Claim
22 words
The invention of claim 1 further including means prior to said classifier for breaking the coagulated and flocculated particles into smaller sizes.
Claim 4
Dependent Claim
31 words
The invention of claim 2 further including a turbidimeter in said first conduit means for sensing the turbidity of liquid and controlling the amount of flocculating agent introduced into said mixer.
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) | 1977-09-09 | 1978-03-11 | 1978-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-09 | 1982-03-11 | 1982-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-09 | 1986-03-11 | 1986-09-10 | $7700.00 | Window Closed / Lapsed |