Patent US3811325A successfully refreshed from Google Patents.
US3811325A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for collecting surface particles on body of water
Assignee: Individual
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Filing: 1972-10-30
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Granted: 1974-05-21
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Expires: 1992-10-30
Abstract
Abstract An apparatus for sampling and collecting floating particulate matter on the surface of a body of water has parallel spaced apart longitudinal floats supporting a rigid tubular frame. Secured to the frame are two parallel, horizontal hydrofoil bodies spaced apart from each other to form an intake opening. A funnel-shaped net with its wide end secured to the intake opening and its narrow end terminating in a collecting screen collects surface particulate matter which is caused to flow into the intake opening as the apparatus is towed on a body of water. The lower hydrofoil body maintains the intake opening at a predetermined depth below the water surface, while the upper hydrofoil body enables the apparatus to ride over swells.
Inventors
- 👤 L Carter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:22
CPC Classifications
G; G01; G01N; G01N1/00; G01N1/02; G01N1/10; G01N1/12; G01N1/22; G01N1/2202; G01N1/2205; G01N2001/1006; G01N2001/1012; G01N2001/1025; G01N33/00; G01N33/18
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
120 words
A water quality sampling device for collecting surface floatage from a body of water, comprising: towing means for moving said sampling device on said body of water in a predetermined direction; laterally spaced buoyancy means for maintaining said sampling device therebetween on the surface of said body of water; and collecting means secured to said towing means and said buoyancy means for removing and sampling said surface floatage from said surface water, said collecting means including a net having a front opening extending for substantially the width of said device and disposed between said buoyancy means and having a smaller rear opening communicating with a removable fine screen sampling net, said sampler net being disposed rearwardly of said buoyancy means.
Claim 2
Dependent Claim
120 words
A water quality sampling device for collecting surface floatage from a body of water, comprising: towing means for moving said sampling device on said body of water in a predetermined direction; laterally spaced buoyancy means for maintaining said sampling device therebetween on the surface of said body of water; and collecting means secured to said towing means and said buoyancy means for removing and sampling said surface floatage from said surface water, said collecting means including a net having a front opening extending for substantially the width of said device and disposed between said buoyancy means and having a smaller rear opening communicating with a removable fine screen sampling net, said sampler net being disposed rearwardly of said buoyancy means.
Claim 3
Dependent Claim
29 words
The water quality sampling device of claim 1, wherein said collecting means further includes intake opening means opening toward said predetermined direction of travel, for receiving oncoming surface water.
Claim 4
Dependent Claim
30 words
The water quality sampling device of claim 2, further including hydrofoil means secured to said intake opening means for controlling the depth of surface water received by said intake opening.
Claim 5
Dependent Claim
55 words
The water quality sampling device of claim 1, wherein said collecting means further includes a funnel-shaped net with a wide end and a narrow end, said wide end of said net being secured to said intake opening means, said intake opening means directing said oncoming surface water into said wide end of said funnel-shaped net.
Claim 6
Dependent Claim
22 words
The water quality sampling device of claim 4, wherein said narrow end of said funnel-shaped net is closed by a fine-mesh screen.
Claim 7
Dependent Claim
29 words
The water quality sampling device of claim 1, wherein said buoyancy means further includes elongated float means with the longitudinal axis aligned parallel with said predetermined direction of travel.
Claim 8
Dependent Claim
36 words
The water quality sampling device of claim 6, wherein said float means comprises two elongated floats secured to rigid frame means to maintain said floats in a spaced apart relationship transverse to said direction of travel.
Claim 9
Dependent Claim
40 words
The water quality sampling device of claim 7, further including intake opening means transverse to said floats and secured therebetween, said intake opening means opening toward said predetermined direction of travel and directing oncoming surface water into said collecting means.
Claim 10
Dependent Claim
33 words
The water quality sampling device of claim 8, further including first hydrofoil means secured to said intake opening means for controlling the depth of oncoming surface water received by said intake opening means.
Claim 11
Dependent Claim
34 words
The water quality sampling device of claim 9, further including second hydrofoil means secured vertically apart and above said first hydrofoil means to ride up and over any turbulence in said oncoming surface water.
Claim 12
Independent Claim
110 words
A method for sampling the quality of water in a large body of water comprising the steps of: towing a sampling device including a net having a fine screen attached thereto on the surface of said body of water; controlling the depth of surface water encountered by said sampling device; collecting said surface water encountered by said sampling device; removing the particulate floatage from said collected surface water by both said net and said fine screen; storing said removed particulate floatage in said sampling device; returning said collected surface water to said body of water; and retrieving said removed particulate floatage from said net and said fine screen for evaluation.
Claim 13
Independent Claim
110 words
A method for sampling the quality of water in a large body of water comprising the steps of: towing a sampling device including a net having a fine screen attached thereto on the surface of said body of water; controlling the depth of surface water encountered by said sampling device; collecting said surface water encountered by said sampling device; removing the particulate floatage from said collected surface water by both said net and said fine screen; storing said removed particulate floatage in said sampling device; returning said collected surface water to said body of water; and retrieving said removed particulate floatage from said net and said fine screen for evaluation.
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) | 1977-05-20 | 1977-11-19 | 1978-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-20 | 1981-11-19 | 1982-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-20 | 1985-11-19 | 1986-05-21 | $7700.00 | Window Closed / Lapsed |