US3670877A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Packaging coils
Assignee: British Iron and Steel Research Association BISRA
•
Filing: 1970-04-16
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Granted: 1972-06-20
•
Expires: 1990-04-16
Abstract
Abstract A coil of strip steel is packaged for export by wrapping protective material around the outer circumference of the coil with an overhanging projection around the outer circumferential edge at each end of the coil. A tube slightly longer than the coil is inserted through the eye of the coil and then the ends of the coil are sprayed with polyurethane rigid setting foam. The overhanging projections around the outer circumferential edge are provided by unwinding the outer turn of the coil and then winding it on again with narrow strips of material interposed between the outer turn and the rest of the coil.
Inventors
- 👤 Geoffrey Ronald Reed
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:19
CPC Classifications
B; B65; B65B; B65B27/00; B65B27/06
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
110 words
A method of packaging a coil of strip metal including wrapping metal protective material around the circumference of the coil with an overhanging projection of metal protective material around the outer circumferential edge at each end of the coil, securing the outer turn of the coil against unwinding, inserting protective sheet material in the eye of the coil, applying a releasing agent to the ends of the coil, applying a protective coating onto the releasing agent on the ends of the coil, and passing bands through the eye of the coil to form complete loops whereby said overhanging projections are collapsed locally where said bands pass over the overhanging projections.
Claim 2
Independent Claim
110 words
A method of packaging a coil of strip metal including wrapping metal protective material around the circumference of the coil with an overhanging projection of metal protective material around the outer circumferential edge at each end of the coil, securing the outer turn of the coil against unwinding, inserting protective sheet material in the eye of the coil, applying a releasing agent to the ends of the coil, applying a protective coating onto the releasing agent on the ends of the coil, and passing bands through the eye of the coil to form complete loops whereby said overhanging projections are collapsed locally where said bands pass over the overhanging projections.
Claim 3
Dependent Claim
45 words
A method as claimed in claim 1 including the step of inserting a tube of protective material through the eye of the coil so as to provide an overhanging projection around the inner circumferential edge at each end of the coil before applying the coating.
Claim 4
Dependent Claim
55 words
A method as claimed in claim 1 in which the outer turn of the coil is unwound to be subsequently wound back on the coil as protective material, and in which protective material is interposed between the outer turn and the rest of the coil to form the overhanging projections around the outer circumferential edges.
Claim 5
Dependent Claim
16 words
A method as claimed in claim 1 in which the protective coating is applied by spraying.
Claim 6
Dependent Claim
17 words
A method as claimed in claim 1 in which the protective coating includes polyurethane rigid setting foam.
Claim 7
Dependent Claim
101 words
A packaged coil of strip metal having protective metal material wrapped around the circumference of the coil with an overhanging projection of metal protective material around the outer circumferential edge at each end of the coil, protective sheet material provided in the eye of the coil, a releasing agent applied to the ends of the coil, and a coating of protective material applied onto the releasing agent on the ends of the coil, and bands passing through the eye of the coil to form complete loops whereby said overhanging projections are collapsed locally where said bands pass over the overhanging projections.
Claim 8
Dependent Claim
101 words
A packaged coil of strip metal having protective metal material wrapped around the circumference of the coil with an overhanging projection of metal protective material around the outer circumferential edge at each end of the coil, protective sheet material provided in the eye of the coil, a releasing agent applied to the ends of the coil, and a coating of protective material applied onto the releasing agent on the ends of the coil, and bands passing through the eye of the coil to form complete loops whereby said overhanging projections are collapsed locally where said bands pass over the overhanging projections.
Claim 9
Dependent Claim
38 words
A coil as claimed in claim 6 including a tube of protective material inserted in the eye of the coil so as to provide an overhanging projection around the inner circumferential edge at each end of the coil.
Claim 10
Dependent Claim
39 words
A coil as claimed in claim 6 in which the overhanging projections around the outer circumferential edges Are formed by a strip interposed at each end of the coil between the outer turn and the rest of the coil.
Claim 11
Dependent Claim
17 words
A coil as claimed in claim 6 in which the protective coating includes polyurethane rigid setting foam.
References Cited (Backward Citations)
US1543052A
Cited
US881490A
Cited
US1154022A
Cited
US1377154A
Cited
US1989053A
Cited
GB444305A
Cited
US2708031A
Cited
US2753992A
Cited
US2914167A
Cited
US3394797A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-20 | 1975-12-20 | 1976-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-20 | 1979-12-20 | 1980-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-20 | 1983-12-20 | 1984-06-20 | $7700.00 | Window Closed / Lapsed |