Patent US4422550A successfully refreshed from Google Patents.
US4422550A
Expired / Lapsed
US
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Structure of pivotal-shaft receiving hole of thin-walled molding product
Assignee: TDK Corp
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Filing: 1981-07-02
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Granted: 1983-12-27
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Expires: 2001-07-02
Abstract
Abstract A pivotal-shaft receiving hole formed in a thin-walled one-piece molded product for receiving a pivotal-shaft of another molded product is formed by a boss formed in one piece with the thin wall of said molded product and the pivotal-shaft receiving hole having a length greater than that of said pivotal-shaft which is formed through said thin wall and said boss.
Inventors
- 👤 Masatoshi Okamura
- 👤 Haruo Shiba
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:27
CPC Classifications
G; G11; G11B; G11B23/00; G11B23/02; G11B23/04; G11B23/08; G11B23/087; G11B23/08707; G11B23/08735; Y; Y10; Y10T; Y10T403/00; Y10T403/16; Y10T403/1608
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
106 words
A pivotal shaft receiving member, comprising: a one piece molded product including a portion having a first thickness; a boss formed on one surface of said portion of said product; a bore for a pivotal shaft, said bore having walls defined by said portion and said boss, the depth of said bore being greater than said first thickness; and a pivotal shaft positionable in said bore, said pivotal shaft having a length greater than said first thickness and less than said depth of said bore, wherein said molded product comprises a magnetic tape cassette and wherein said shaft is fixed to a cover for said cassette.
Claim 2
Dependent Claim
106 words
A pivotal shaft receiving member, comprising: a one piece molded product including a portion having a first thickness; a boss formed on one surface of said portion of said product; a bore for a pivotal shaft, said bore having walls defined by said portion and said boss, the depth of said bore being greater than said first thickness; and a pivotal shaft positionable in said bore, said pivotal shaft having a length greater than said first thickness and less than said depth of said bore, wherein said molded product comprises a magnetic tape cassette and wherein said shaft is fixed to a cover for said cassette.
Claim 3
Dependent Claim
34 words
The member of claim 1 wherein the walls of said bore are continuous and said bore extends into said portion and said boss from a second surface of said portion opposite said one surface.
References Cited (Backward Citations)
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Cited
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-12-26 | 1987-06-27 | 1987-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-12-26 | 1991-06-27 | 1991-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-12-26 | 1995-06-27 | 1995-12-27 | $7700.00 | Window Closed / Lapsed |