US4065075A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tape transport for a cassette
Assignee: Individual
•
Filing: 1976-04-14
•
Granted: 1977-12-27
•
Expires: 1996-04-14
Abstract
Abstract In a tape transport for a cassette for recording and reproducing apparatus, wherein reversibly driven feed reels and take-up reels are rotatably located in said cassette and providing tape tensioning means in the form of assist rollers to exert a continuous tensioning force on the moving tape, the improvement of including therein three or more recessed pin rollers located in the outer faces of said reels to reduce friction between said faces and the inner walls of said cassette.
Inventors
- 👤 Larry Wayne Holcomb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:11
CPC Classifications
G; G11; G11B; G11B23/00; G11B23/02; G11B23/037; G11B23/04; G11B23/08; G11B23/087; G11B23/08707; G11B23/08728
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
98 words
In a tape cassette for magnetic recording and reproducing apparatus including reversibly driven feed and take-up reels wherein continuous tensioning force is provided on the moving tape by inclusion of a tensioning roller between the feed reel and the directional guide roller, the improvement wherein each of said reels includes recessed portions in the outer faces thereof, three or more, in multiples of three, equidistantly spaced spring actuated pin rollers in said recessed portions and extending outwardly from said outer faces of said reels whereby frictional contact between the cassette and the reels is reduced during tape movement.
Claim 2
Dependent Claim
98 words
In a tape cassette for magnetic recording and reproducing apparatus including reversibly driven feed and take-up reels wherein continuous tensioning force is provided on the moving tape by inclusion of a tensioning roller between the feed reel and the directional guide roller, the improvement wherein each of said reels includes recessed portions in the outer faces thereof, three or more, in multiples of three, equidistantly spaced spring actuated pin rollers in said recessed portions and extending outwardly from said outer faces of said reels whereby frictional contact between the cassette and the reels is reduced during tape movement.
Claim 3
Dependent Claim
68 words
A tape cassette including a set of driven reversibly mounted feed and take-up reels wherein each of said reels includes recessed portions in the outer faces thereof, three or more, in multiples of three, equidistantly spaced spring actuated pin rollers located in said portions recessed and extending outwardly from said faces of said reels whereby frictional contact between the cassette and the reels is reduced during tape movement.
Claim 4
Dependent Claim
68 words
A tape cassette including a set of driven reversibly mounted feed and take-up reels wherein each of said reels includes recessed portions in the outer faces thereof, three or more, in multiples of three, equidistantly spaced spring actuated pin rollers located in said portions recessed and extending outwardly from said faces of said reels whereby frictional contact between the cassette and the reels is reduced during tape movement.
Claim 5
Dependent Claim
11 words
The device of claim 2 wherein three pin rollers are used.
Claim 6
Dependent Claim
11 words
The device of claim 2 wherein six pin rollers are used.
Claim 7
Dependent Claim
11 words
The device of claim 2 wherein nine pin rollers are used.
Claim 8
Dependent Claim
13 words
The device of claim 2 wherein the rollers are formed of resilient material.
References Cited (Backward Citations)
US2833489A
Cited
GB1188366A
Cited
US3529788A
Cited
US3656705A
Cited
US3625455A
Cited
US3826489A
Cited
DE2151386A1
Cited
US3887943A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-12-26 | 1981-06-27 | 1981-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-12-26 | 1985-06-27 | 1985-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-12-26 | 1989-06-27 | 1989-12-27 | $7700.00 | Window Closed / Lapsed |