US4320429A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure device for flexible recording media in cartridges using a universal joint mounting
Assignee: Emtec Magnetics GmbH
•
Filing: 1980-01-17
•
Granted: 1982-03-16
•
Expires: 2000-01-17
Abstract
Abstract A pressure device for flexible recording media, especially those contained in cartridges, which comprises a rigid member provided with a resilient pad, which member, secured to a pivoted lever, is located in front of the write/read area of the scanning head relative to the direction of rotation of the recording medium, and presses the recording medium against a platen, wherein the rigid member is connected to the pivoted lever via a universal joint.
Inventors
- 👤 Werner Knerich
- 👤 Udo Boehm
- 👤 Klaus Schulze-Berge
- 👤 Roland Brotzler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:17
CPC Classifications
G; G11; G11B; G11B17/00; G11B17/32
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
112 words
A pressure device for flexible recording media contained in cartridges, which comprises a rigid member provided with a resilient pad, which member is arranged on a pivoted arm which can be urged toward a platen portion on the chassis of the drive unit for the recording medium, and is located in front of the write/read area of the scanning head relative to the direction of rotation of the flexible recording medium, and thus presses the recording medium, at least indirectly, against said platen portion, wherein the rigid member is mounted by means of a universal joint, in order to achieve the application of pressure over the entire surface of the resilient pad.
Claim 2
Dependent Claim
112 words
A pressure device for flexible recording media contained in cartridges, which comprises a rigid member provided with a resilient pad, which member is arranged on a pivoted arm which can be urged toward a platen portion on the chassis of the drive unit for the recording medium, and is located in front of the write/read area of the scanning head relative to the direction of rotation of the flexible recording medium, and thus presses the recording medium, at least indirectly, against said platen portion, wherein the rigid member is mounted by means of a universal joint, in order to achieve the application of pressure over the entire surface of the resilient pad.
Claim 3
Dependent Claim
32 words
A device as claimed in claim 1, wherein a ball with a pin is provided on the rigid member, and a socket, communicating with a hole, is provided on the pivoted lever.
Claim 4
Dependent Claim
26 words
A device as claimed in claim 1 or 2, wherein means are provided for preventing the rigid member from rotating with respect to the pivoted lever.
References Cited (Backward Citations)
US3678481A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-03-15 | 1985-09-14 | 1986-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-03-15 | 1989-09-14 | 1990-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-03-15 | 1993-09-14 | 1994-03-16 | $7700.00 | Window Closed / Lapsed |