US4358807A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tape cassette
Assignee: Olympus Corp
•
Filing: 1980-07-11
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Granted: 1982-11-09
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Expires: 2000-07-11
Abstract
Abstract In the cassette disclosed, a cassette housing with magnetic tape has openings at the front surface thereof for receiving a magnetic head, a pinch roller and the like. A pair of tape pad springs for pressing against the head of the openings are integrally formed with the housing.
Inventors
- 👤 Akira Osanai
- 👤 Toshihisa Nakao
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:49
CPC Classifications
G; G11; G11B; G11B23/00; G11B23/02; G11B23/04; G11B23/08; G11B23/087; G11B23/08707; G11B23/08757; G11B23/08771
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
58 words
A tape cassette, comprising a cassette housing having upper and lower portions and a front edge, a magnetic tape accommodated therein, a pair of openings provided at the front edge of the housing for receiving a magnetic head, an opening for a pinch roller, and a pair of tape press pad springs integrally formed with the cassette housing.
Claim 2
Dependent Claim
58 words
A tape cassette, comprising a cassette housing having upper and lower portions and a front edge, a magnetic tape accommodated therein, a pair of openings provided at the front edge of the housing for receiving a magnetic head, an opening for a pinch roller, and a pair of tape press pad springs integrally formed with the cassette housing.
Claim 3
Dependent Claim
26 words
A tape cassette as claimed in claim 1, wherein each of the pad springs is integrally formed in upper and lower portions of the housings, respectively.
Claim 4
Dependent Claim
24 words
A tape cassette as claimed in claims 1 or 2, wherein each pad spring extends to a head receiving opening around a capstan opening.
Claim 5
Dependent Claim
96 words
A tape cassettte, comprising a cassette housing having upper and lower portions and a front edge, a pair of tape hubs rotatably mounted in the housing, a magnetic tape mounted on the hubs, means for guiding the tape from one hub to the other, said housing forming a pair of magnetic head receiving openings straddling the center of the edge, said housing forming an opening for a pinch roller between the magnetic head receiving openings, and a pair of tape press pad springs integrally formed with the cassette housing and extending to the head receiving openings.
Claim 6
Dependent Claim
96 words
A tape cassettte, comprising a cassette housing having upper and lower portions and a front edge, a pair of tape hubs rotatably mounted in the housing, a magnetic tape mounted on the hubs, means for guiding the tape from one hub to the other, said housing forming a pair of magnetic head receiving openings straddling the center of the edge, said housing forming an opening for a pinch roller between the magnetic head receiving openings, and a pair of tape press pad springs integrally formed with the cassette housing and extending to the head receiving openings.
Claim 7
Dependent Claim
31 words
A cassette as in claims 1, 2 or 4, further comprising a pair of stoppers near the head receiving openings, the springs being biased outwardly toward the edge against said stoppers.
Claim 8
Dependent Claim
93 words
A cassette as in claims 1 or 2, wherein the housing forms a capstan opening at the front edge between two head receiving openings, one of said pad springs extending from a point more remote from the capstan opening than one of the head receiving openings and forming a cantilever arm toward one of the head receiving openings, the other of said pad springs extending from a point more remote from the capstan opening than the other of the head receiving openings as a cantilever toward the other of the head receiving openings.
Claim 9
Dependent Claim
60 words
A cassette as in claim 6, wherein each of said pad springs has a pad mounted thereon closer to the head receiving portion than the other end thereof and is anchored at the other end thereof, the anchored end of said pad springs being more remote from the edge having the head receiving openings than the ends having the pads.
Claim 10
Dependent Claim
12 words
A cassette as in claim 7, wherein said pad springs are step-shaped.
Claim 11
Dependent Claim
33 words
A cassette as in claim 8, wherein each of said pads has two portions substantially parallel to the edge having the head receiving openings and one portion substantially perpendicular to the front edge.
Claim 12
Dependent Claim
89 words
A cassette as in claims 1, 2 or 4, wherein one of said pad springs extends from one side of the capstan opening and around the capstan opening to the head receiving opening at the outer side thereof, and the other of said pad springs extending from the other side of the capstan opening and around the capstan opening to the head receiving opening at the one side thereof, said pad springs each being arch-shaped and having an extension member from the arch-shaped extending parallel to the front edge.
Claim 13
Dependent Claim
50 words
A cassette as in claims 1, 2 or 4, wherein each of said springs form an arch shape and has an extension member extending from the arch shape parallel to the front edge, said springs having pads mounted thereon at the extension and being anchored at the other ends thereof.
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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) | 1985-11-08 | 1986-05-10 | 1986-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-11-08 | 1990-05-10 | 1990-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-11-08 | 1994-05-10 | 1994-11-09 | $7700.00 | Window Closed / Lapsed |