US4623325A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Folding insert for forming a jacket
Assignee: O-M Ltd 17-GO 12-BAN UMEDA 1-CHOME KITA-KU OSAKA JAPAN
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Filing: 1983-11-30
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Granted: 1986-11-18
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Expires: 2003-11-30
Abstract
Abstract A folding insert for forming a jacket to be used for a device to form a envelope-shape jacket for a magnetic cartridge. The folding insert is provided with protrusions and grooves along both side edges thereof, whereby flaps of the jacket material can be bent more than 180° by a folding bar along the protrusions of the folding insert.
Inventors
- 👤 Yoshinobu Mori
- 👤 Akira Tada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:19
CPC Classifications
B; B31; B31B; B31B50/00; B31B50/26; B31B50/28
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
169 words
A folding insert for forming a substantially square envelope-shaped jacket for holding a magnetic disk to form a flexible disk cartridge, the jacket being formed by folding a rectangular sheet of thermoplastic resin material substantially in half with one portion on top of the other, the lower portion having flaps along the side edges which are then folded around the folding insert and adhered to the folded over upper portion of the rectangular sheet, said folding insert comprising: a flat plate having substantially the same width as the width of the rectangular sheet; projection means extending along both side edges of said flat plate around which the flaps are to be folded and which project slightly above the plane of the upper surface of said flat plate; whereby the flaps of the rectangular sheet can be bent more than 180° around said projection means so that upon flyback of the flaps, they will be positioned substantially 180° from the plane of the lower portion from which they were folded.
Claim 2
Dependent Claim
169 words
A folding insert for forming a substantially square envelope-shaped jacket for holding a magnetic disk to form a flexible disk cartridge, the jacket being formed by folding a rectangular sheet of thermoplastic resin material substantially in half with one portion on top of the other, the lower portion having flaps along the side edges which are then folded around the folding insert and adhered to the folded over upper portion of the rectangular sheet, said folding insert comprising: a flat plate having substantially the same width as the width of the rectangular sheet; projection means extending along both side edges of said flat plate around which the flaps are to be folded and which project slightly above the plane of the upper surface of said flat plate; whereby the flaps of the rectangular sheet can be bent more than 180° around said projection means so that upon flyback of the flaps, they will be positioned substantially 180° from the plane of the lower portion from which they were folded.
Claim 3
Dependent Claim
17 words
A folding insert as claimed in claim 1 in which said projection means consists of a projection.
Claim 4
Dependent Claim
30 words
A folding means as claimed in claim 1 in which said projection means comprises a projection, and said plate having a groove therein extending along the inside of said projection.
References Cited (Backward Citations)
US2058501A
Cited
US3059547A
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US3041944A
Cited
US3344978A
Cited
US3874276A
Cited
US4493682A
Cited
US4559030A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-11-17 | 1990-05-19 | 1990-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-11-17 | 1994-05-19 | 1994-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-11-17 | 1998-05-19 | 1998-11-18 | $7700.00 | Window Closed / Lapsed |