US4922361A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure pad, particularly for magnetic tapes
Assignee: Individual
•
Filing: 1988-05-16
•
Granted: 1990-05-01
•
Expires: 2008-05-16
Abstract
Abstract The pressure pad comprises a support body defining folded portions adapted for connection to retention pins a magnetic tape cassette, and a region bearing a plurality of monofilaments. The monofilaments each have one end fixed to the region of the support body, and another end adapted for contact engagement with a magnetic tape. The monofilaments can be made of conductive material for dispersing static electricity.
Inventors
- 👤 Abramo Bordignon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 16:24
CPC Classifications
G; G11; G11B; G11B23/00; G11B23/02; G11B23/04; G11B23/08; G11B15/00; G11B15/60; G11B15/62; G11B23/087; G11B23/08707; G11B23/08757; G11B23/08771; G11B23/50; G11B23/502
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
133 words
In combination, a pressure pad particularly for magnetic tapes, and a magnetic tape, said pressure pad comprising; a support body locatable proximate to said magnetic tape, at least one portion defined on said support body and being elastically pressed towards said magnetic tape by said support body, a plurality of monofilaments, at least one end defined by each monofilament in said plurality of monofilaments and being fixed to said one portion of said support body, at least one other end defined by each monofilament in said plurality of monofilaments and being in contact engagement said magnetic tape, wherein said monofilaments have a diameter comprised between 15 microns and 32 microns, a length comprised between 0.6 mm and 1.6 mm and a monofilament density comprised between 400 and 100 monofilaments per mm 2 .
Claim 2
Dependent Claim
133 words
In combination, a pressure pad particularly for magnetic tapes, and a magnetic tape, said pressure pad comprising; a support body locatable proximate to said magnetic tape, at least one portion defined on said support body and being elastically pressed towards said magnetic tape by said support body, a plurality of monofilaments, at least one end defined by each monofilament in said plurality of monofilaments and being fixed to said one portion of said support body, at least one other end defined by each monofilament in said plurality of monofilaments and being in contact engagement said magnetic tape, wherein said monofilaments have a diameter comprised between 15 microns and 32 microns, a length comprised between 0.6 mm and 1.6 mm and a monofilament density comprised between 400 and 100 monofilaments per mm 2 .
Claim 3
Dependent Claim
14 words
Combination according to claim 1, wherein said monofilaments are made of electrically conductive material.
Claim 4
Dependent Claim
27 words
Combination according to claim 1, wherein said monofilaments are made of synthetic plastic material, and wherein said synthetic plastic material is treated with an electrically conductive material.
References Cited (Backward Citations)
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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) | 1993-04-30 | 1993-10-30 | 1994-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-04-30 | 1997-10-30 | 1998-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-04-30 | 2001-10-30 | 2002-05-01 | $7700.00 | Window Closed / Lapsed |