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US3648944A
Expired / Lapsed
US
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Reel
Assignee: Fujifilm Holdings Corp
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Filing: 1970-01-09
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Granted: 1972-03-14
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Expires: 1990-01-09
Abstract
Abstract A reel including a pair of flanges and a hub member has an axial slit on the hub periphery. A projection with a concave top surface is disposed inside the peripheral wall of the hub member. The engaging end of a magnetic tape or the like is held on the concave top surface of the projection by the finger of the operator with the tape end engaged by the slit to cause take-up of the tape on the reel during rotation of the same.
Inventors
- 👤 Hirotomo Fujiwara
- 👤 Takuya Arai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:45
CPC Classifications
G; G11; G11B; G11B23/00; G11B23/02; G11B23/037; G11B15/00; G11B15/60; G11B15/66; G11B15/67; G11B15/674
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
134 words
A tape reel comprising: a pair of flanges, a cylindrical hub portion extending between said flanges and coupling the same, an opening within at least one flange, internally of said hub, a cylindrical projection of a diameter approximating that of a human finger extending axially toward said opening from the opposite side of said hub, and terminating in a concave end surface axially inwards of the flange carrying said opening, and being positioned within said opening, a radial slit extending outwardly of said opening within said flange, and an axial slit operatively associated with said projection and extending across said hub in line with said radial slit to permit said tape to easily wrap itself about said hub after the terminal portion is pressed against the finger receiving concave end of said cylindrical projection.
Claim 2
Dependent Claim
134 words
A tape reel comprising: a pair of flanges, a cylindrical hub portion extending between said flanges and coupling the same, an opening within at least one flange, internally of said hub, a cylindrical projection of a diameter approximating that of a human finger extending axially toward said opening from the opposite side of said hub, and terminating in a concave end surface axially inwards of the flange carrying said opening, and being positioned within said opening, a radial slit extending outwardly of said opening within said flange, and an axial slit operatively associated with said projection and extending across said hub in line with said radial slit to permit said tape to easily wrap itself about said hub after the terminal portion is pressed against the finger receiving concave end of said cylindrical projection.
Claim 3
Dependent Claim
37 words
A tape reel as defined in claim 1 wherein said flanges and hub portion are constructed by a pair of substantially identical molded reel halves, with each comprising a flange portion and an interfitting hub forming portion.
Claim 4
Dependent Claim
23 words
A tape reel as defined in claim 2 wherein a space is provided around said projection for allowing tape to be wrapped thereabout.
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) | 1975-03-14 | 1975-09-13 | 1976-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-14 | 1979-09-13 | 1980-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-14 | 1983-09-13 | 1984-03-14 | $7700.00 | Window Closed / Lapsed |