US5364535A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for separating oily pollutants from water runoff
Assignee: Individual
•
Filing: 1992-03-09
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Granted: 1994-11-15
•
Expires: 2012-03-09
Abstract
Abstract A pad for absorbing oily pollutants from water is releasably attached in a catch basin for floating on the surface of the water in the basin. When the pad is saturated with oily pollutants, it is removed and replaced by a new pad. A plurality of catch basins is connected in series and a pollutant-absorbing pad is releasably secured in each of the catch basins.
Inventors
- 👤 Charles O. Buckalew
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:14
CPC Classifications
E; E03; E03F; E03F5/00; E03F5/04; E03F5/0401; E03F5/0404; C; C02; C02F; C02F1/00; C02F1/68; C02F1/681; E03F1/00; E03F5/14; E03F5/16; Y; Y10; Y10S; Y10S210/00; Y10S210/918; Y10S210/922; Y10S210/924
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
108 words
A method for removing oily pollutants from storm water runoff from a street or parking area comprising: (a) receiving the storm water runoff in a basin of a storm sewer system; (b) attaching to the basin a member made of oily pollutant separating and retaining material, wherein the step of attaching comprises attaching the member of oily pollutant separating and retaining material such that said member floats on the surface of the water in the basin by securing a first end of an attaching device to the basin and by securing a second end of the attaching device to the member of oily pollutant separating and retaining material.
Claim 2
Independent Claim
108 words
A method for removing oily pollutants from storm water runoff from a street or parking area comprising: (a) receiving the storm water runoff in a basin of a storm sewer system; (b) attaching to the basin a member made of oily pollutant separating and retaining material, wherein the step of attaching comprises attaching the member of oily pollutant separating and retaining material such that said member floats on the surface of the water in the basin by securing a first end of an attaching device to the basin and by securing a second end of the attaching device to the member of oily pollutant separating and retaining material.
Claim 3
Dependent Claim
26 words
The method according to claim 1, wherein the step of attaching comprises releasably attaching the member of oily pollutant separating and retaining material to the basin.
Claim 4
Dependent Claim
30 words
The method according to claim 1, further comprising allowing the member of oily pollutant separating and retaining material to float as the level of the water in the basin changes.
Claim 5
Dependent Claim
35 words
The method according to claim 1, further comprising inspecting the basin after the installation of the member of oily pollutant separating and retaining material to determine when the member is sufficiently saturated with oily pollutants.
Claim 6
Dependent Claim
45 words
The method according to claim 4, further comprising removing the member of oily pollutant separating and retaining material in response to a detection that the member is sufficiently saturated, and replacing the sufficiently saturated member with another member of oily pollutant separating and retaining material.
Claim 7
Dependent Claim
32 words
The method according to claim 1, further comprising removing the member of oily pollutant separating and retaining material, removing the oily pollutants from the member, and reattaching the member to the basin.
Claim 8
Dependent Claim
19 words
The method according to claim 1, wherein said member of oily pollutant separating and retaining material comprises polypropylene material.
Claim 9
Dependent Claim
19 words
The method according to claim 1, wherein the member of oily pollutant separating and retaining material comprises polypropylene fibers.
References Cited (Backward Citations)
US3565257A
Cited
US3868319A
Cited
US4130489A
Cited
US4111183A
Cited
US4052306A
Cited
US4197204A
Cited
US4261823A
Cited
US4497712A
Cited
US4689145A
Cited
US4965129A
Cited
US4737394A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-11-14 | 1998-05-16 | 1998-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-11-14 | 2002-05-16 | 2002-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-11-14 | 2006-05-16 | 2006-11-15 | $7700.00 | Window Closed / Lapsed |