US3878807A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water intake strainer for use on boats
Assignee: Individual
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Filing: 1973-12-26
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Granted: 1975-04-22
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Expires: 1993-12-26
Abstract
Abstract A water intake strainer for use on boats having a construction such as to increase the flow of water through the strainer as well as to prevent a vacuum or air bubbles to be created and interrupt the flow of water through the strainer into a standpipe. The construction including an upward tapering of the strainer in the normal direction of travel so as to expose a greater surface for water to enter the strainer.
Inventors
- 👤 Nikola Reskusic
- 👤 Jakov Reskusic
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:23
CPC Classifications
B; B63; B63B; B63B13/00; B63B13/02
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
211 words
In a water intake strainer to be mounted on the hull of a boat below the water line wherein said strainer overlies and is independent of the intake end of a water stand-pipe passing through said boat hull into the interior thereof, the improvement of a strainer member which is generally oblong and includes a leading portion and a trailing portion, a pair of elongated parallel side walls spaced one from the other extending between said leading and trailing portion, and a bottom strainer wall encompassing the area defined by said leading and trailing portions and said side walls and said bottom strainer wall inclined downwardly and rearwardly from said leading to said trailing porTion; said bottom strainer wall including a plurality of openings extending through said wall substantially throughout the entire area of said wall, whereby water may pass therethrough to said standpipe; water jet means formed in said strainer member intermediate the said openings and said hull whereby when the boat is underway water may pass through said jet means at an increased velocity over water passing through said strainer bottom wall intermixing the water and thus reduce water turbulence within said strainer member; and said strainer member embodying attachment means for securing said member to said boat hull.
Claim 2
Dependent Claim
211 words
In a water intake strainer to be mounted on the hull of a boat below the water line wherein said strainer overlies and is independent of the intake end of a water stand-pipe passing through said boat hull into the interior thereof, the improvement of a strainer member which is generally oblong and includes a leading portion and a trailing portion, a pair of elongated parallel side walls spaced one from the other extending between said leading and trailing portion, and a bottom strainer wall encompassing the area defined by said leading and trailing portions and said side walls and said bottom strainer wall inclined downwardly and rearwardly from said leading to said trailing porTion; said bottom strainer wall including a plurality of openings extending through said wall substantially throughout the entire area of said wall, whereby water may pass therethrough to said standpipe; water jet means formed in said strainer member intermediate the said openings and said hull whereby when the boat is underway water may pass through said jet means at an increased velocity over water passing through said strainer bottom wall intermixing the water and thus reduce water turbulence within said strainer member; and said strainer member embodying attachment means for securing said member to said boat hull.
Claim 3
Dependent Claim
211 words
In a water intake strainer to be mounted on the hull of a boat below the water line wherein said strainer overlies and is independent of the intake end of a water stand-pipe passing through said boat hull into the interior thereof, the improvement of a strainer member which is generally oblong and includes a leading portion and a trailing portion, a pair of elongated parallel side walls spaced one from the other extending between said leading and trailing portion, and a bottom strainer wall encompassing the area defined by said leading and trailing portions and said side walls and said bottom strainer wall inclined downwardly and rearwardly from said leading to said trailing porTion; said bottom strainer wall including a plurality of openings extending through said wall substantially throughout the entire area of said wall, whereby water may pass therethrough to said standpipe; water jet means formed in said strainer member intermediate the said openings and said hull whereby when the boat is underway water may pass through said jet means at an increased velocity over water passing through said strainer bottom wall intermixing the water and thus reduce water turbulence within said strainer member; and said strainer member embodying attachment means for securing said member to said boat hull.
Claim 4
Dependent Claim
211 words
In a water intake strainer to be mounted on the hull of a boat below the water line wherein said strainer overlies and is independent of the intake end of a water stand-pipe passing through said boat hull into the interior thereof, the improvement of a strainer member which is generally oblong and includes a leading portion and a trailing portion, a pair of elongated parallel side walls spaced one from the other extending between said leading and trailing portion, and a bottom strainer wall encompassing the area defined by said leading and trailing portions and said side walls and said bottom strainer wall inclined downwardly and rearwardly from said leading to said trailing porTion; said bottom strainer wall including a plurality of openings extending through said wall substantially throughout the entire area of said wall, whereby water may pass therethrough to said standpipe; water jet means formed in said strainer member intermediate the said openings and said hull whereby when the boat is underway water may pass through said jet means at an increased velocity over water passing through said strainer bottom wall intermixing the water and thus reduce water turbulence within said strainer member; and said strainer member embodying attachment means for securing said member to said boat hull.
Claim 5
Dependent Claim
54 words
A water intake strainer as defined in claim 1 wherein said leading portion includes a generally flat forward wall extending normal to said side walls and slanting toward said trailing portion, and said trailing portion includes a semi-circular wall slanting toward said leading portion and having a height greater than said generally flat wall.
Claim 6
Dependent Claim
35 words
A water intake strainer as defined in claim 1 wherein said openings in said bottom strainer wall are holes having axes offset from the perpendicular relative to the inclined plane of said bottom strainer wall.
Claim 7
Dependent Claim
36 words
A water intake strainer as defined in claim 2 wherein said water jet means include a plurality of holes extending through said generally flat wall with axes normal to the plane of said generally flat wall.
References Cited (Backward Citations)
US2281459A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-04-21 | 1978-10-21 | 1979-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-21 | 1982-10-21 | 1983-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-21 | 1986-10-21 | 1987-04-22 | $7700.00 | Window Closed / Lapsed |