Patent SE416419B successfully refreshed from Google Patents.
US4262856A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tape reel
Assignee: Nifco Inc
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Filing: 1980-01-14
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Granted: 1981-04-21
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Expires: 2000-01-14
Abstract
Abstract A plastic tape reel comprising a hub and two flanges attached one each to the opposite axial ends of the hub, the hub comprising an inner cylindrical part possessing a hollow portion adapted to engage with a reel engaging shaft, an outer cylindrical part possessing a peripheral surface adapted to have tape wound thereon and an annular part extending to connect the inner cylindrical part and the outer cylindrical part. The annular part is bent in the axial direction over its radial length and is constructed so that the inner edge thereof joins the axial basal edge of the inner cylindrical part and the outer edge thereof joins the outer cylindrical part intermediate of the entire axial length thereof.
Inventors
- 👤 Akira Nakagawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:40
CPC Classifications
G; G11; G11B; G11B23/00; G11B23/02; G11B23/037
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
147 words
In a plastic tape reel comprising a hub and two flanges attached one each to the opposite axial ends of the hub, said hub comprising an inner cylindrical part possessing a hollow portion adapted to engage with the reel engaging shaft of a video recording and reproducing device, an outer cylindrical part possessing a peripheral surface adapted to have tape wound thereon and an annular part connecting said inner cylindrical part to said outer cylindrical part wherein at least one of said two flanges is molded integrally with one axial end of said hub, the improvement which comprises the annular part being bent in the axial direction over its radial length and being constructed so that the inner edge thereof joins the axial basal edge of said inner cylindrical part and the outer edge thereof joins said outer cylindrical part intermediate of the entire axial length thereof.
Claim 2
Dependent Claim
147 words
In a plastic tape reel comprising a hub and two flanges attached one each to the opposite axial ends of the hub, said hub comprising an inner cylindrical part possessing a hollow portion adapted to engage with the reel engaging shaft of a video recording and reproducing device, an outer cylindrical part possessing a peripheral surface adapted to have tape wound thereon and an annular part connecting said inner cylindrical part to said outer cylindrical part wherein at least one of said two flanges is molded integrally with one axial end of said hub, the improvement which comprises the annular part being bent in the axial direction over its radial length and being constructed so that the inner edge thereof joins the axial basal edge of said inner cylindrical part and the outer edge thereof joins said outer cylindrical part intermediate of the entire axial length thereof.
Claim 3
Dependent Claim
37 words
The tape reel according to claim 1, wherein the outer edge of the annular part joins the outer cylindrical part at a height equalling about one half of the entire axial length of the outer cylindrical part.
Claim 4
Dependent Claim
35 words
The tape reel according to claim 1, which further comprises a plurality of radially spaced reinforcing crosspieces disposed between the outer surface of the inner cylindrical part and the bent portion of the annular part.
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) | 1984-04-20 | 1984-10-20 | 1985-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-04-20 | 1988-10-20 | 1989-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-04-20 | 1992-10-20 | 1993-04-21 | $7700.00 | Window Closed / Lapsed |