US3762168A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water pollution control
Assignee: Individual
•
Filing: 1971-09-10
•
Granted: 1973-10-02
•
Expires: 1991-09-10
Abstract
Abstract The invention relates to devices for removing pollutants from water, particularly navigable streams, rivers and lakes. In one form, the invention comprises a skimming device which is disposed at an acute angle to the flow of water and is operable to direct the pollutants skimmed from the water to a collecting area such as a reservoir, from where it may be removed from time to time. In another form, the device is operable to protect an off-shore working area, such as an oil well rig, against pollution of the water, by disposition of a skimming device in surrounding relation with respect thereto.
Inventors
- 👤 R Pardee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:56
CPC Classifications
E; E02; E02B; E02B15/00; E02B15/04; E02B15/08; E02B15/0814; Y; Y02; Y02A; Y02A20/00; Y02A20/20; Y02A20/204
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
145 words
An anti-pollution device for a stream of water flowing into another body of water, comprising: a first barrier disposed across said stream and partly submerged in the water for skimming floating debris and pollutants therefrom while permitting water flow thereunder to said other body of water, said first barrier being disposed at an acute angle to the flow of water to divert an upper portion of the water striking it, and the debris and pollutants floating thereon, to a side of said stream, a reservoir disposed at said stream side and in communication therewith for collecting the diverted debris and pollutants, said reservoir having a portion in communication with said other body of water, and a second barrier across said reservoir portion to permit flow of water thereunder from said reservoir to said other body of water, but blocking passage of collected debris and pollutants.
Claim 2
Dependent Claim
145 words
An anti-pollution device for a stream of water flowing into another body of water, comprising: a first barrier disposed across said stream and partly submerged in the water for skimming floating debris and pollutants therefrom while permitting water flow thereunder to said other body of water, said first barrier being disposed at an acute angle to the flow of water to divert an upper portion of the water striking it, and the debris and pollutants floating thereon, to a side of said stream, a reservoir disposed at said stream side and in communication therewith for collecting the diverted debris and pollutants, said reservoir having a portion in communication with said other body of water, and a second barrier across said reservoir portion to permit flow of water thereunder from said reservoir to said other body of water, but blocking passage of collected debris and pollutants.
Claim 3
Dependent Claim
33 words
The construction according to claim 11 wherein said first barrier is formed in sections, and wherein at least one of said sections is movable from barrier position to provide passage for a boat.
References Cited (Backward Citations)
US813842A
Cited
US1269855A
Cited
US2693161A
Cited
US2857872A
Cited
US2984076A
Cited
US3184923A
Cited
US3170299A
Cited
US3599434A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-01 | 1977-04-02 | 1977-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-01 | 1981-04-02 | 1981-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-01 | 1985-04-02 | 1985-10-02 | $7700.00 | Window Closed / Lapsed |