US3591104A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resilient cable drum
Assignee: Individual
•
Filing: 1969-05-19
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Granted: 1971-07-06
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Expires: 1989-05-19
Abstract
Abstract A drum for the winding and storage of cable or wire comprising a core and a pair of flanges flanking the ends of the core. The marginal portion of each flange is surrounded by a resilient, nondeformable ring of metal or synthetic plastic which intercepts impact and shock forces applied to the edges of the flanges, thereby protecting the drum from damage.
Inventors
- 👤 Erich Hafner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:47
CPC Classifications
B; B66; B66D; B66D1/00; B66D1/28; B66D1/30; B65; B65H; B65H75/00; B65H75/02; B65H75/04; B65H75/08; B65H75/14; B65H75/145; B65H2701/00; B65H2701/50; B65H2701/51; B65H2701/513; B65H2701/5134; B65H2701/5136; B65H2701/514; B65H2701/515; B65H2701/5152; B65H2701/51526; B65H2701/51528
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
87 words
Cable reel, comprising a cylindrical core; disc-shaped flanges mounted on said core and defining with said core a space for cable, said core and flanges consisting of a hard resin; and an elastic ring mounted on the periphery of each of said flanges, said ring consisting of a softer resin than said hard resin and being profiled both axially and radially so that each ring has ribs and cavities, thereby increasing its flexibility and ability to absorb shocks without damage to itself, the flanges or the core.
Claim 2
Dependent Claim
87 words
Cable reel, comprising a cylindrical core; disc-shaped flanges mounted on said core and defining with said core a space for cable, said core and flanges consisting of a hard resin; and an elastic ring mounted on the periphery of each of said flanges, said ring consisting of a softer resin than said hard resin and being profiled both axially and radially so that each ring has ribs and cavities, thereby increasing its flexibility and ability to absorb shocks without damage to itself, the flanges or the core.
Claim 3
Dependent Claim
51 words
A cable reel as defined in claim 1, wherein each of said elastic rings has an internal surface and each of said flanges has an external surface adjacent to the corresponding ring, one of said surfaces having at least one annular groove receiving at least a portion of the other surface.
Claim 4
Dependent Claim
16 words
A cable reel as defined in claim 1, wherein said disc-shaped flanges are composed of polystyrene.
Claim 5
Dependent Claim
14 words
A cable reel as defined in claim 1, wherein said softer resin is polyethylene.
Claim 6
Dependent Claim
20 words
A cable reel as defined in claim 1, wherein at least one of said elastic rings has outwardly extending projections.
Claim 7
Dependent Claim
17 words
A cable reel as defined in claim 5, wherein at least some of said projections are hollow.
Claim 8
Dependent Claim
17 words
A cable reel as defined in claim 5, wherein at least some of said projections are solid.
Claim 9
Dependent Claim
27 words
A cable reel as defined in claim 1, wherein at least one of said elastic rings includes a circumferentially complete outer part and projections extending inwardly therefrom.
Claim 10
Dependent Claim
24 words
A cable reel as defined in claim 1, wherein the width of at least one of said elastic rings exceeds substantially the thickness thereof.
Claim 11
Dependent Claim
20 words
A cable reel as defined in claim 1, wherein at least one of said elastic rings is provided with recesses.
Claim 12
Dependent Claim
21 words
A cable reel as defined in claim 1, wherein at least one of said elastic rings is of undulate cross-sectional outline.
Claim 13
Dependent Claim
35 words
A cable as defined in claim 1, wherein at least one of said elastic rings comprises a first ring of synthetic plastic material and a second ring consisting of metallic material surrounding said first ring.
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) | 1974-07-05 | 1975-01-04 | 1975-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-05 | 1979-01-04 | 1979-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-05 | 1983-01-04 | 1983-07-06 | $7700.00 | Window Closed / Lapsed |