Patent US3856281A successfully refreshed from Google Patents.
US3856281A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for cooling hot rolled metallic strips
Assignee: Centro Sperimentale Metallurgico SpA
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Filing: 1972-07-10
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Granted: 1974-12-24
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Expires: 1992-07-10
Abstract
Abstract Device for cooling hot-rolled metallic strips, by means of water directed against the rapidly moving strip, between the last finishing stand of the mill and the coiler, comprising: MEANS CAPABLE OF DELIVERING A CONTINUOUS WATER FILM, WITH VERY LOW TURBULENCE, LIMITED THICKNESS AND WITH A LENGTH EXCEEDING GREATLY THE SAID THICKNESS. MEANS CAPABLE OF CONTROLLING THE FLOW RATE OF THE SAID WATER FILM WITHIN A CONSIDERABLE RANGE. MEANS CAPABLE OF ORIENTING PROPERLY THE SAID WATER FILM AGAINST THE STRIP.
Inventors
- 👤 G Mocci
- 👤 N Bertolotti
- 👤 B Sabatini
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:01
CPC Classifications
B; B05; B05C; B05C5/00; B05C5/005; B21; B21B; B21B45/00; B21B45/02; B21B45/0203; B21B45/0209; B21B45/0215; B21B45/0233
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
75 words
A device for cooling hot rolled metallic strip by means of water directed against a strip moving rapidly between the last finishing stand of a strip mill and a coiler, comprising a cooling water distributing box having inner side walls that converge downwardly and terminate downwardly in a slit that extends generally transverse to the path of movement of the strip, said side walls having upper concave portions and lower convex portions adjacent said slit.
Claim 2
Independent Claim
75 words
A device for cooling hot rolled metallic strip by means of water directed against a strip moving rapidly between the last finishing stand of a strip mill and a coiler, comprising a cooling water distributing box having inner side walls that converge downwardly and terminate downwardly in a slit that extends generally transverse to the path of movement of the strip, said side walls having upper concave portions and lower convex portions adjacent said slit.
Claim 3
Dependent Claim
17 words
A device as claimed in claim 1, said concave portions being substantially taller than said convex portions.
Claim 4
Dependent Claim
24 words
A device as claimed in claim 1, said inner side walls forming an angle of 65* to 88* to the horizontal at said slit.
Claim 5
Dependent Claim
27 words
A device as claimed in claim 1, and means to adjust the position of said box vertically relative to a said path of movement of the strip.
Claim 6
Dependent Claim
32 words
A device as claimed in claim 1, and means to adjust the position of said box so that said slit forms an adjustable angle with said path of movement of the strip.
Claim 7
Dependent Claim
50 words
A device as claimed in claim 1, and means for controlling the flow rate of water through said slit, said means comprising a blade disposed in the distributing box and extending downwardly into said slit, and means for vertically adjusting the position of the blade relative to said side walls.
Claim 8
Dependent Claim
15 words
A device as claimed in claim 6, said blade having downwardly converging outer side walls.
Claim 9
Dependent Claim
22 words
A device as claimed in claim 7, said blade having a cross-sectional configuration which is symmetrical with respect to its vertical midplane.
Claim 10
Dependent Claim
19 words
A device as claimed in claim 8, said blade having a cross-sectional configuration which is substantially of tear-drop shape.
Claim 11
Dependent Claim
45 words
A device as claimed in claim 9, said tear-drop shape having a convex curvature that increases downwardly for a minor portion of the height of the blade and then decreases to an inflection point below which said outer side walls of said blade are concave.
Claim 12
Dependent Claim
37 words
A device as claimed in claim 6, said blade having upper edges disposed at an angle of 60* to 100* to each other and lower edges disposed at an angle of 4* to 20* to each other.
Claim 13
Dependent Claim
19 words
A device as claimed in claim 6, said blade occupying 50 to 90% of the width of said slit.
Claim 14
Dependent Claim
26 words
A device as claimed in claim 6, said blade being divided into at least three pieces disposed side-by-side and individually vertically movable independently of each other.
Claim 15
Dependent Claim
18 words
A device as claimed in claim 1, the upper portion of said box having a circular cross-sectional configuration.
Claim 16
Dependent Claim
23 words
A device as claimed in claim 1, and means mounting said inner side walls for adjustive movement toward and away from each other.
Claim 17
Dependent Claim
22 words
A device as claimed in claim 1, and means for adjusting the angle of said inner side walls relative to each other.
Claim 18
Dependent Claim
48 words
A device as claimed in claim 1, said box being elongated and having a generally rectangular configuration and said other side wAlls being defined by protrusions disposed in said box, said protrusions having substantially uniform cross-sectional configuration lengthwise of said box, said slit extending lengthwise of said box.
Claim 19
Dependent Claim
31 words
A device as claimed in claim 1, in which the water directed against the strip forms a continuous band-shaped flow having a width substantially corresponding to the width of said strip.
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) | 1977-12-23 | 1978-06-24 | 1978-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-23 | 1982-06-24 | 1982-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-23 | 1986-06-24 | 1986-12-24 | $7700.00 | Window Closed / Lapsed |