Patent US3889894A successfully refreshed from Google Patents.
US3889894A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cassette reel hub for a tape recorder
Assignee: UGEN KAISHA OVERU ENGINEERING
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Filing: 1974-02-05
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Granted: 1975-06-17
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Expires: 1994-02-05
Abstract
Abstract A reel hub comprises a reel hub body having a center hole provided with a plurality of projections and an outer periphery on which a tape is wound. An opening is provided in the reel hub body in the neighborhood of the outer periphery of the reel hub body and a slit at least sufficient for the tape to be inserted is provided in the outer periphery of the reel hub body to communicate with the opening. An engaging member is provided within the opening to permit it to be fitted into a recess defined in the opening.
Inventors
- 👤 Michiyuki Deguchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:38
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/60; G11B15/66; G11B15/67; G11B15/674; B; B65; B65H; B65H75/00; B65H75/02; B65H75/18; B65H75/28; G11B23/00; G11B23/02; G11B23/037; G11B23/04; G11B23/041; G11B23/044
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
124 words
A reel hub for a cassette comprising a reel hub body having an outer periphery on which a tape is wound, an opening provided adjacent to the outer periphery and having an inner surface, a slit provided in the outer periphery of the reel hub body to communicate with the opening and adapted to permit the tape to be inserted therethrough, and a Recess communicating with the opening; and engaging member provided in the opening, and a connecting member for connecting the engaging member to the inner surface of the opening, the connecting member being fractured to fit the engaging member into the recess thereby to fixedly secure the end of the tape between the inner surface of the recess and the engaging member.
Claim 2
Dependent Claim
124 words
A reel hub for a cassette comprising a reel hub body having an outer periphery on which a tape is wound, an opening provided adjacent to the outer periphery and having an inner surface, a slit provided in the outer periphery of the reel hub body to communicate with the opening and adapted to permit the tape to be inserted therethrough, and a Recess communicating with the opening; and engaging member provided in the opening, and a connecting member for connecting the engaging member to the inner surface of the opening, the connecting member being fractured to fit the engaging member into the recess thereby to fixedly secure the end of the tape between the inner surface of the recess and the engaging member.
Claim 3
Dependent Claim
24 words
The reel hub according to claim 1 in which the recess is of a semi-circular shape and the engaging member is ball-like in shape.
Claim 4
Dependent Claim
22 words
The reel hub according to claim 2 in which the ball-like engaging member has a size fittingly insertible into the semi-circular recess.
Claim 5
Dependent Claim
29 words
The reel hub according to claim 1 in which all of the reel hub body, the engaging member and the connecting member is one piece molded from synthetic resin.
Claim 6
Dependent Claim
21 words
The reel hub according to claim 1 in which said reel hub body has at least two holes different in size.
Claim 7
Dependent Claim
23 words
The reel hub according to claim 1 in which said reel hub body has a plurality of projections for reinforcing the reel hub.
Claim 8
Dependent Claim
25 words
The reel hub according to claim 1 in which said reel hub body has a center hole whose peripheral wall has a plurality of projections.
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) | 1978-06-16 | 1978-12-16 | 1979-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-16 | 1982-12-16 | 1983-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-16 | 1986-12-16 | 1987-06-17 | $7700.00 | Window Closed / Lapsed |