US4545550A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tape reel mounting and coupling for a magnetic-tape cassette
Assignee: Brug Gerard J V D
•
Filing: 1983-08-29
•
Granted: 1985-10-08
•
Expires: 2003-08-29
Abstract
Abstract In a magnetic-tape cassette having adjacent flanged reels mounted for rotation in a housing, coupling members connect the reels to the winding mandrels on a cassette apparatus. Each member has an axial portion extending through the housing for engagement by a spring which presses the reel against an apparatus reel disc, and radially resilient limbs extending in the opposite direction for engaging the mandrel.
Inventors
- 👤 Joost M. Wolf
- 👤 Hendrik A. Post
- 👤 Willem H. Stigter
- 👤 Gerard J. van der Brug
- 👤 Joannes H. F. C. Sieben
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:32
CPC Classifications
G; G11; G11B; G11B23/00; G11B23/02; G11B23/04; G11B23/08; G11B23/087
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
155 words
A magnetic-tape cassette comprising a housing and adjacent reels, each of said reels being provided with a hub and flanges mounted for rotation within the housing, characterized in that the reels each comprise a first flange connected to the hub; a coupling member near said first flange, which coupling member comprises a first portion which extends axially outwardly into an aperture in the housing, and a plurality of limbs which extend axially opposite said first portion and are deflectable resiliently in a radially inward direction, said limbs being disposed inside said hub of the reel and arranged such that, responsive to placing the cassette on a magnetic tape apparatus having a reel disc and a winding mandrel, said limbs are engageable with the winding mandrel of the magnetic-tape apparatus; and a second flange connected to the hub and comprising an annular contact surface for positioning the reel on the reel disc of the magnetic-tape apparatus.
Claim 2
Dependent Claim
155 words
A magnetic-tape cassette comprising a housing and adjacent reels, each of said reels being provided with a hub and flanges mounted for rotation within the housing, characterized in that the reels each comprise a first flange connected to the hub; a coupling member near said first flange, which coupling member comprises a first portion which extends axially outwardly into an aperture in the housing, and a plurality of limbs which extend axially opposite said first portion and are deflectable resiliently in a radially inward direction, said limbs being disposed inside said hub of the reel and arranged such that, responsive to placing the cassette on a magnetic tape apparatus having a reel disc and a winding mandrel, said limbs are engageable with the winding mandrel of the magnetic-tape apparatus; and a second flange connected to the hub and comprising an annular contact surface for positioning the reel on the reel disc of the magnetic-tape apparatus.
Claim 3
Dependent Claim
22 words
A magnetic-tape cassette as claimed in claim 1, characterized in that the aperture in the cassette housing is closed by a foil.
Claim 4
Dependent Claim
36 words
A magnetic-tape cassette as claimed in claim 2, characterized in that the housing has a second aperture, on the side through which the winding mandrel is engaged, said second aperture being also closed by a foil.
References Cited (Backward Citations)
US3236468A
Cited
US3489273A
Cited
US3631971A
Cited
US3661250A
Cited
US3784001A
Cited
US3873193A
Cited
US3883090A
Cited
US3865331A
Cited
US4234140A
Cited
US4329073A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-10-07 | 1989-04-08 | 1989-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-10-07 | 1993-04-08 | 1993-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-10-07 | 1997-04-08 | 1997-10-08 | $7700.00 | Window Closed / Lapsed |