Patent US4277810A successfully refreshed from Google Patents.
US4277810A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Floppy disc structure with rectangular casing
Assignee: Siemens AG
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Filing: 1979-02-15
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Granted: 1981-07-07
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Expires: 1999-02-15
Abstract
Abstract A floppy disc structure comprises a magnetic disc which is rotatably disposed in a rectangular casing. At points where a gripping arrangement grasps the floppy disc in order to draw the same into a floppy disc drive unit automatically, spacers are provided which prevent compression of the casing, the spacers being disposed between the inner surfaces of the walls of the casing. The spacers are approximately the thickness of the magnetic disc.
Inventors
- 👤 Hans Helmrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:31
CPC Classifications
G; G11; G11B; G11B17/00; G11B17/02; G11B17/022; G11B17/028; G11B17/03; G11B23/00; G11B23/02; G11B23/03; G11B23/033; G11B23/0332
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
121 words
A floppy disc structure to be gripped by a pair of spaced grippers of a gripping arrangement of a floppy disc drive unit for drawing the floppy disc structure into the floppy disc drive unit, comprising: a rectangular casing for loading into a floppy disc drive unit, said casing including a pair of spaced walls; a floppy disc rotatably mounted in said casing between said pair of spaced walls; and spacing means between said walls only at gripping locations of the spaced grippers of the gripping arrangement at two adjacent corners of said casing and outside of the space occupied by said floppy disc, said spacing means having a thickness which is approximately the same as that of said floppy disc.
Claim 2
Dependent Claim
121 words
A floppy disc structure to be gripped by a pair of spaced grippers of a gripping arrangement of a floppy disc drive unit for drawing the floppy disc structure into the floppy disc drive unit, comprising: a rectangular casing for loading into a floppy disc drive unit, said casing including a pair of spaced walls; a floppy disc rotatably mounted in said casing between said pair of spaced walls; and spacing means between said walls only at gripping locations of the spaced grippers of the gripping arrangement at two adjacent corners of said casing and outside of the space occupied by said floppy disc, said spacing means having a thickness which is approximately the same as that of said floppy disc.
Claim 3
Dependent Claim
29 words
The structure of claim 1, wherein said spacing means comprises: a pair of triangular-shaped members located at respective ones of and conforming to the shape of said two corners.
Claim 4
Dependent Claim
25 words
The structure of claim 1, wherein: one of said walls includes a U-shaped extension which extends about an edge of the other of said walls.
Claim 5
Dependent Claim
42 words
The structure of claim 1, wherein: one of said walls includes a first U-shaped portion with one leg of said U forming said spacing means; and a second U-shaped portion extending such that one leg thereof embraces the other of said walls.
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) | 1984-07-06 | 1985-01-05 | 1985-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-07-06 | 1989-01-05 | 1989-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-07-06 | 1993-01-05 | 1993-07-07 | $7700.00 | Window Closed / Lapsed |