US3683447A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water removing device
Assignee: 3M Co
•
Filing: 1970-06-25
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Granted: 1972-08-15
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Expires: 1990-06-25
Abstract
Abstract A device for removing water from an artifically surfaced field comprises, in combination, a frame; at least one roller rotatably mounted in said frame and extending at least partially therebelow, said roller having a diameter of from about 2 to 20 inches and adapted to roll over said surfacing, there being sufficient weight exerted on said roller by the weight of the roller, the weight of the device, or preferably a combination thereof, so that said roller exerts at least 10 pounds per square inch pressure on said surface along the length dimension of said roller, said roller pressing said surface to express water therefrom to a position in front of said roller; suction means to remove said water from in front of said roller; and means on said frame to hold the water after it is removed.
Inventors
- 👤 William W Stevenson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:08
CPC Classifications
E; E01; E01H; E01H1/00; E01H1/10; E01H1/108; A; A01; A01B; A01B29/00; A01B29/02; A01G; A01G20/00; A01G20/30
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
170 words
A device for removing water from an artificially surfaced field, comprising in combination: a frame; at least one roller rotatably mounted on said frame and extending at least partially therebelow, said roller having a diameter of from 2 to 20 inches and adapted to roll over said field surfacing, therebeing sufficient weight available from the weight of said roller, the weight of said frame, or a combination thereof, so that said roller exerts at least 10 pounds per square inch pressure on said field along the entire length dimension of said roller, said roller pressing said surface to express water therefrom to a position in front of said roller; a plurality of nozzles, each flexibly mounted on the frame independently of each other and independent of said roller mounting, each nozzle being singularly connected to one of a corresponding plurality of suction pumps to draw water into said nozzle and remove said water from in front of said roller; and means to hold said water after it has been removed.
Claim 2
Independent Claim
170 words
A device for removing water from an artificially surfaced field, comprising in combination: a frame; at least one roller rotatably mounted on said frame and extending at least partially therebelow, said roller having a diameter of from 2 to 20 inches and adapted to roll over said field surfacing, therebeing sufficient weight available from the weight of said roller, the weight of said frame, or a combination thereof, so that said roller exerts at least 10 pounds per square inch pressure on said field along the entire length dimension of said roller, said roller pressing said surface to express water therefrom to a position in front of said roller; a plurality of nozzles, each flexibly mounted on the frame independently of each other and independent of said roller mounting, each nozzle being singularly connected to one of a corresponding plurality of suction pumps to draw water into said nozzle and remove said water from in front of said roller; and means to hold said water after it has been removed.
Claim 3
Dependent Claim
22 words
The device of claim 1 additionally having means to transfer said water from said holding means to a point off said field.
Claim 4
Dependent Claim
17 words
The device of claim 1 wherein said roller is a metal shaft surfaced with a resilient material.
Claim 5
Dependent Claim
11 words
The device of claim 3 wherein said resilient material is rubber.
Claim 6
Independent Claim
209 words
The device for removing water from an artificially surfaced field, comprising in combination; a frame; a pair of rollers rotatably mounted on said frame and extending at least partially therebelow, each of said rollers being about 6 feet long and having a diameter of from about 2 to 20 inches, therebeing sufficient weight available from the weight of said roller, the weight of said frame or a combination thereof so that said rollers exert at least 10 pounds per square inch pressure on said artificially surfaced field along the length dimension of said rollers; a plurality of nozzles, each flexibly mounted on the frame independently of each other and independent of said roller mounting, each nozzle being singularly connected to one of a corresponding plurality of suction pumps said nozzles mounted in said frame immediately in front of said rollers and adjacent said field; a tank mounted on said frame to hold water; and means to move said device on said field; whereby when said device is moved on said field, said rollers express water from said field to a position immediately forward the moving rollers such that said nozzles, having reduced pressure therein, pick up said water in front of said moving rollers transferring same to said tank.
Claim 7
Independent Claim
209 words
The device for removing water from an artificially surfaced field, comprising in combination; a frame; a pair of rollers rotatably mounted on said frame and extending at least partially therebelow, each of said rollers being about 6 feet long and having a diameter of from about 2 to 20 inches, therebeing sufficient weight available from the weight of said roller, the weight of said frame or a combination thereof so that said rollers exert at least 10 pounds per square inch pressure on said artificially surfaced field along the length dimension of said rollers; a plurality of nozzles, each flexibly mounted on the frame independently of each other and independent of said roller mounting, each nozzle being singularly connected to one of a corresponding plurality of suction pumps said nozzles mounted in said frame immediately in front of said rollers and adjacent said field; a tank mounted on said frame to hold water; and means to move said device on said field; whereby when said device is moved on said field, said rollers express water from said field to a position immediately forward the moving rollers such that said nozzles, having reduced pressure therein, pick up said water in front of said moving rollers transferring same to said tank.
Claim 8
Dependent Claim
19 words
The device of claim 5 wherein said rollers comprise a central steel core surfaced with a soft, neoprene rubber.
Claim 9
Dependent Claim
33 words
The device of claim 5 additionally having a small lead roller in front and between said rollers for expressing water to a point in front of said rollers when said device is moved.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-08-15 | 1976-02-14 | 1976-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-15 | 1980-02-14 | 1980-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-15 | 1984-02-14 | 1984-08-15 | $7700.00 | Window Closed / Lapsed |