Patent US3866451A successfully refreshed from Google Patents.
US3866451A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for producing multiple gauge strip
Assignee: Olin Corp
•
Filing: 1974-02-04
•
Granted: 1975-02-18
•
Expires: 1994-02-04
Abstract
Abstract A method for the preparation of multiple gauge metal strip possessing improved dimensional precision is disclosed which comprises passing the strip through a grooved roll assembly whereby strip reduction is confined to the area of contact with the grooves. The roll assembly of this invention employs a grooved upper roll whose dimensions are defined by the ratio of the length of the arc of contact of the upper roll with the strip to the width of the groove. The method of this invention is advantageously employed as a single pass operation.
Inventors
- 👤 Joseph Winter
- 👤 Eugene Shapiro
- 👤 Warren F Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 15:52
CPC Classifications
B; B21; B21H; B21H8/00; B21B; B21B1/00; B21B1/08; B21B3/00; B21B2003/005; B21B27/00; B21B27/02
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
89 words
Method for the preparation of multiple gauge metal strip possessing improved structural quality and dimensional precision which comprises passing the strip through a grooved roll assembly comprising a dimensionally defined grooved upper roll, whereby strip reduction is confined to the area of groove contact and is determined by the ratio of L/W, L is defined as the length of the arc of contact of said upper roll with said strip, and W is defined as the width of the groove, and said L/W ratio is at least about 4.
Claim 2
Dependent Claim
89 words
Method for the preparation of multiple gauge metal strip possessing improved structural quality and dimensional precision which comprises passing the strip through a grooved roll assembly comprising a dimensionally defined grooved upper roll, whereby strip reduction is confined to the area of groove contact and is determined by the ratio of L/W, L is defined as the length of the arc of contact of said upper roll with said strip, and W is defined as the width of the groove, and said L/W ratio is at least about 4.
Claim 3
Dependent Claim
11 words
The method of claim 1 wherein said ratio is about 10:1.
Claim 4
Dependent Claim
15 words
The method of claim 1 wherein a single groove is defined by said upper roll.
Claim 5
Dependent Claim
14 words
The method of claim 3 wherein said single groove is of rectangular cross-sectional shape.
Claim 6
Dependent Claim
13 words
The method of claim 3 wherein said single groove is round in shape.
Claim 7
Dependent Claim
16 words
The method of claim 1 wherein at least two grooves are defined by said upper roll.
Claim 8
Dependent Claim
13 words
The method of claim 6 wherein said grooves are of rectangular cross-sectional shape.
Claim 9
Dependent Claim
12 words
The method of claim 6 wherein said grooves are round in shape.
Claim 10
Dependent Claim
24 words
The method of claim 6 wherein the distance between said grooves is substantially the same as or larger than the width of said grooves.
Claim 11
Dependent Claim
17 words
The method of claim 1 wherein strip reduction is conducted in one pass through said roll assembly.
Claim 12
Dependent Claim
67 words
The roll assembly for the preparation of multiple gauge metal strip possessing improved structural quality and dimensional precision which comprises a grooved upper roll whose dimensions are defined by the ratio of L/W, wherein L is defined as the arc of contact of said upper roll with said strip, W is defined as the width of the groove, and said L/W ratIo is at least about 4.
Claim 13
Dependent Claim
67 words
The roll assembly for the preparation of multiple gauge metal strip possessing improved structural quality and dimensional precision which comprises a grooved upper roll whose dimensions are defined by the ratio of L/W, wherein L is defined as the arc of contact of said upper roll with said strip, W is defined as the width of the groove, and said L/W ratIo is at least about 4.
Claim 14
Dependent Claim
12 words
The roll assembly of claim 11 wherein said ratio is about 10:1.
Claim 15
Dependent Claim
15 words
The roll assembly of claim 11 wherein said grooved upper roll defines a single groove.
Claim 16
Dependent Claim
15 words
The roll assembly of claim 13 wherein said single groove is of rectangular cross-sectional shape.
Claim 17
Dependent Claim
14 words
The roll assembly of claim 13 wherein said single groove is round in shape.
Claim 18
Dependent Claim
16 words
The roll assembly of claim 11 wherein said grooved upper roll defines at least two grooves.
Claim 19
Dependent Claim
14 words
The roll assembly of claim 16 wherein said grooves are of rectangular cross-sectional shape.
Claim 20
Dependent Claim
13 words
The roll assembly of claim 16 wherein said grooves are round in shape.
Claim 21
Dependent Claim
25 words
The roll assembly of claim 16 wherein the distance between said groove is substantially the same as or larger than the width of said grooves.
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) | 1978-02-17 | 1978-08-19 | 1979-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-17 | 1982-08-19 | 1983-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-17 | 1986-08-19 | 1987-02-18 | $7700.00 | Window Closed / Lapsed |