US3878940A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coil protector
Assignee: Allegheny Plastics Inc
•
Filing: 1973-06-04
•
Granted: 1975-04-22
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Expires: 1993-06-04
Abstract
Abstract A coil protector including a substantially tubular core for engaging the center opening of a coil and a surface radially extending from an end of the core for protecting the edges of the material forming the coil. The protector is secured to a coil by conventional banding.
Inventors
- 👤 Robert W Wittebort
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:49
CPC Classifications
B; B65; B65D; B65D85/00; B65D85/67; B65D85/671
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
79 words
A coil protector for protecting the edges of material formed in a coil having a central opening suitable for use in lifting and positioning the coil comprising: A. a substantially tubular core open over its diameter at both ends and having an outer tapered wall for facilitating engaging the core in the central opening of the coil; and B. a surface radially extending from an end of the core for protecting the edges of the material forming the coil.
Claim 2
Dependent Claim
79 words
A coil protector for protecting the edges of material formed in a coil having a central opening suitable for use in lifting and positioning the coil comprising: A. a substantially tubular core open over its diameter at both ends and having an outer tapered wall for facilitating engaging the core in the central opening of the coil; and B. a surface radially extending from an end of the core for protecting the edges of the material forming the coil.
Claim 3
Dependent Claim
79 words
A coil protector for protecting the edges of material formed in a coil having a central opening suitable for use in lifting and positioning the coil comprising: A. a substantially tubular core open over its diameter at both ends and having an outer tapered wall for facilitating engaging the core in the central opening of the coil; and B. a surface radially extending from an end of the core for protecting the edges of the material forming the coil.
Claim 4
Dependent Claim
79 words
A coil protector for protecting the edges of material formed in a coil having a central opening suitable for use in lifting and positioning the coil comprising: A. a substantially tubular core open over its diameter at both ends and having an outer tapered wall for facilitating engaging the core in the central opening of the coil; and B. a surface radially extending from an end of the core for protecting the edges of the material forming the coil.
Claim 5
Dependent Claim
36 words
A coil protector as set forth in claim 1 wherein the radially extending surface is drafted toward the core to insure its contact with edges of the coil when the protector is placed on a coil.
Claim 6
Dependent Claim
27 words
A coil protector as set forth in claim 1 wherein the plane of the radially extending surface extends substantially perpendicular to the longitudinal axis of the core.
Claim 7
Dependent Claim
13 words
A coil protector as set forth in claim 1 made of thermoplastic material.
References Cited (Backward Citations)
US1517940A
Cited
US1766257A
Cited
US1912388A
Cited
US1954848A
Cited
US1931314A
Cited
US2059267A
Cited
US3700099A
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 |