US3836000A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and apparatus of handling water which is contaminated with an oillike liquid
Assignee: INT POLLUTION CONTROL SYSTEMS
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Filing: 1971-07-08
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Granted: 1974-09-17
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Expires: 1991-07-08
Abstract
Abstract A liquid to be handled forms a body having a lower layer consisting of water substantially free of oillike liquid and an upper layer which comprises an oillike liquid. Water from said lower layer is pumped directly from said body. Liquid is pumped from said upper layer and is subjected to a separating treatment to remove oillike liquid.
Inventors
- 👤 P Jakubek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:27
CPC Classifications
B; B63; B63B; B63B17/00; B63B17/06; B01; B01D; B01D17/00; B01D17/02; B01D17/0202; B01D17/0208; B01D17/0211; B01D17/0214; B01D17/04; B01D17/08; B01D17/10; B63B13/00; Y; Y10; Y10S; Y10S210/00; Y10S210/918; Y10S210/922; Y10S210/923; Y10S210/924
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
254 words
Apparatus for separating oil from water constituting a liquid from a hold, comprising a first pump means positioned for directly pumping out water from said hold, a control switch means in dependency on the level of the liquid in said hold for switching off said first pump means, an oil separator, a second pump means positioned for pumping out of said hold water mixed with oil and on the latter a layer of oil, respectively, and to said oil separator, said oil separator comprising, a pressure-tight container having a cover, a filter packing disposed therein for separating said oil, and, spaced from a top of said container, forming inside said container a top space for liquid, an air cushion, the latter standing under pressure and lying above the liquid, a supply pipe entering said container and operatively connected to said second pump means, a check valve operatively connected to said supply pipe, and a drain pipe exiting from said container and communicating with pure water separated in said container for removing said pure water, means for switching off said first pump and switching over from said first pump to said second pump, respectively, an air venting valve means for reducing the pressure of said air cushion, a switching means for controlling said air venting valve corresponding to a lowering of the level of said liquid in said space in said oil separator, and said supply pipe said drain pipe, said air Vent valve, and said switching means received in said cover of said container.
Claim 2
Dependent Claim
254 words
Apparatus for separating oil from water constituting a liquid from a hold, comprising a first pump means positioned for directly pumping out water from said hold, a control switch means in dependency on the level of the liquid in said hold for switching off said first pump means, an oil separator, a second pump means positioned for pumping out of said hold water mixed with oil and on the latter a layer of oil, respectively, and to said oil separator, said oil separator comprising, a pressure-tight container having a cover, a filter packing disposed therein for separating said oil, and, spaced from a top of said container, forming inside said container a top space for liquid, an air cushion, the latter standing under pressure and lying above the liquid, a supply pipe entering said container and operatively connected to said second pump means, a check valve operatively connected to said supply pipe, and a drain pipe exiting from said container and communicating with pure water separated in said container for removing said pure water, means for switching off said first pump and switching over from said first pump to said second pump, respectively, an air venting valve means for reducing the pressure of said air cushion, a switching means for controlling said air venting valve corresponding to a lowering of the level of said liquid in said space in said oil separator, and said supply pipe said drain pipe, said air Vent valve, and said switching means received in said cover of said container.
Claim 3
Dependent Claim
48 words
Apparatus as set forth in claim 1, in which said filter packing consists of a material selected from the class which consists of polyurethanes, polyisocyanates, cross-linked polyesters and cross-linked polyethers, which polyesters and polyethers contain a cross-linking agent selected from the class consisting of isocyanates, diamines, and glycols.
Claim 4
Dependent Claim
27 words
The apparatus, as set forth in claim 1, wherein said drain pipe extends to below said filter packing and terminates at a free end in a point.
Claim 5
Dependent Claim
28 words
The apparatus, as set forth in claim 1, wherein said oil filter packing is made of foam material, having open pores, said pores become smaller with progressing depth.
Claim 6
Dependent Claim
23 words
The apparatus, as set forth in claim 1, wherein said switch means for controlling said air venting valve is a magnet float switch.
Claim 7
Dependent Claim
32 words
The apparatus, as set forth in claim 1, wherein said container is made of transparent synthetic material and is equipped with a marker means for indicating the exhaust of said filter packing.
Claim 8
Dependent Claim
58 words
The apparatus, as set forth in claim 1, further comprising two plug valves, bag means of synthetic material are connected with said oil separator by means of an opening portion of said bag means and of said oil separator for receiving the separated oil over said two plug valves, the latter being operatively disposed in said opening portion.
Claim 9
Dependent Claim
46 words
The apparatus, as set forth in claim 7, wherein said bag means engage prior to their filling with the separated oil on said container of said oil separator, a severance means disposed between said two plug valves for the separation of said bag means when filled.
Claim 10
Dependent Claim
20 words
The apparatus, as set forth in claim 1, further comprising an air separator means operatively connected to said oil separator.
Claim 11
Dependent Claim
152 words
The apparatus, as set forth in claim 9, wherein said air separator means is disposed between said second pump means and said oil separator, and has a housing and an inlet pipe for oil, water and air, said inlet pipe entering into said housing into the interior of said air separator means and terminating above a liquid level inside of said air separator means at one end of said inlet pipe, a second check valve, positioned at said one end of said inlet pipe, an outlet pipe exiting from said air separator means and beginning above the bottom of said air separator means, and an air release valve means controlled by the liquid level in said air separator means and communicating with an upper inside portion of said air separator means for removing air released from the latter by means of a lowering of the liquid level in said air separator means.
Claim 12
Dependent Claim
31 words
The apparatus, as set forth in claim 1, wherein said air release valve means is an electromagnetic valve, and a magnet float switch means for controlling said air release valve means.
Claim 13
Dependent Claim
149 words
The apparatus, as set forth in claim 1, further comprising at least one collection container positioned for receiving removed oil from said oil separator, said oil separator includes at least one coarse separator and at least one fine separator with said filter packing for the separation of the oil, said coarse separator is connected by conduit means with said fine separator, and said coarse separator is connected with said at least one collection container by means of an oil conduit, a locking valve means for closing off said oil conduit, a floating switch means for opening and closing, respectively, said locking valve means and having two switching points responsive to the rising or lowering of a limit range between oil and water in said coarse separator, and a densimetric float body floating in said coarse separator between said oil and the water operatively connected to said floating switch means.
Claim 14
Dependent Claim
31 words
The apparatus, as set forth in claim 12, wherein said floating switch means is a magnetic float switch, and an air venting valve float switch means constituting a magnetic float switch.
Claim 15
Dependent Claim
60 words
The apparatus, as set forth in claim 12, further comprising an outlet valve means for said at least one collection container for emptying the latter, a magnet swim switch means responding to the increase of liquid level in said collection container and for controlling said outlet valve means, and a lockable emptying opening at the bottom of said collection container.
Claim 16
Dependent Claim
44 words
The apparatus as set forth in claim 12, further comprising at least one intermediate setting container under circumstances said coarse separator contains a coarse filter packing of foam material, and said intermediate setting container is switched between said coarse separator and said fine separator.
Claim 17
Dependent Claim
56 words
The apparatus as set forth in claim 12, wherein said coarse separator and said fine separator are disposed in one container formed as a collection container for the separated oil, and said collection container, said coarse separator, and said fine separator, respectively, constituting modules capable of being set up in accordance with a modular building system.
Claim 18
Dependent Claim
26 words
The apparatus, as set forth in claim 16, wherein individual containers are connected among each other by means of liquid conduit means connecting said collection containers.
Claim 19
Dependent Claim
59 words
The apparatus, as set forth in claim 13, wherein said coarse separator and said fine separator are disposed in said collection container, cover means for said coarse separator and said fine separator, and said conduit means, said oil conduit, said floating switch means and said air venting float switch means being operatively connected to and through said cover means.
References Cited (Backward Citations)
US1513294A
Cited
US2701620A
Cited
US2664170A
Cited
US2895883A
Cited
US2984360A
Cited
US3339736A
Cited
US3425556A
Cited
US3363399A
Cited
US3565252A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-09-16 | 1978-03-18 | 1978-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-16 | 1982-03-18 | 1982-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-16 | 1986-03-18 | 1986-09-17 | $7700.00 | Window Closed / Lapsed |