US3752113A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cassette tape movement indicator
Assignee: Individual
•
Filing: 1971-08-02
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Granted: 1973-08-14
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Expires: 1991-08-02
Abstract
Abstract A cassette tape movement indicator having indicating means coupled to the takeup hub of the tape cassette, the indicating means being viewable through the window of a cassette recorder. In one embodiment the indicating means is a removable insert having a plurality of radially extending tines from a central portion having downwardly depending projections adapted for engagement with the inwardly extending projections on the hub of the cassette. In a second embodiment a transparent disc is coupled to the hub internally of the cassette, the disc having markings thereon viewable through the window in the cassette, one disc being associated with each hub of the cassette, the discs being positioned on that side of the hub which is viewable through the window of the cassette when that particular hub has tape being wound thereon.
Inventors
- 👤 F Blechman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:20
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/02; G11B15/05; G11B15/093; G11B23/00; G11B23/02; G11B23/04; G11B23/08; G11B23/087; G11B23/08707; G11B23/0875; G11B27/00; G11B27/10; G11B27/34
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
92 words
A tape movement indicator for use with a tape cassette having the tape wound between hubs within a housing having a viewing aperture between the hubs to display the disposition of tape therein, said indicator comprising: a body portion; means on said body portion for engaging one of the hubs for rotation therewith; indicating meanS on said body portion extending into proximity with but displaced from the viewing aperture, said indicating means being disposed on said body portion to permit generally unobstructed viewing of the disposition of the tape within the aperture.
Claim 2
Dependent Claim
92 words
A tape movement indicator for use with a tape cassette having the tape wound between hubs within a housing having a viewing aperture between the hubs to display the disposition of tape therein, said indicator comprising: a body portion; means on said body portion for engaging one of the hubs for rotation therewith; indicating meanS on said body portion extending into proximity with but displaced from the viewing aperture, said indicating means being disposed on said body portion to permit generally unobstructed viewing of the disposition of the tape within the aperture.
Claim 3
Dependent Claim
13 words
The combination according to claim 1 wherein said body portion is a disc.
Claim 4
Dependent Claim
25 words
The combination according to claim 1 wherein the engaging means includes a plurality of depending projections for matingly engaging a hub externally of the housing.
Claim 5
Dependent Claim
14 words
The combination according to claim 3 wherein the indicating means are radially extending portions.
Claim 6
Dependent Claim
14 words
The combination according to claim 3 wherein the indicating means are radially extending tines.
Claim 7
Dependent Claim
19 words
The combination according to claim 3 wherein the projections frictionally engage the hub intermediate inwardly radially extending hub projections.
Claim 8
Dependent Claim
30 words
The combination according to claim 2 wherein the disc is secured to the hub within the housing and the indicating means thereon extend substantially the length of the viewing aperture.
Claim 9
Dependent Claim
23 words
The combination according to claim 7 wherein the body portion is a transparent disc and the indicating means are radially disposed markings thereon.
Claim 10
Dependent Claim
12 words
The combination according to claim 8 wherein the markings are colored lines.
Claim 11
Dependent Claim
202 words
In a magnetic recording tape cassette the combination comprising: a housing having a generally parallel upper and lower walls therein; a first and second pair of aligned apertures in the walls in an axial direction perpendicular to the plane of the walls; a first and a second hub members axially aligned with each pair of apertures for rotational movement with respect to the housing; a length of magentic recording tape having one end thereof secured to said first hub and the other end thereof secured to said second hub for winding therebetween; a pair of aligned generally rectangular viewing apertures in said walls between said hubs for viewing the tape therein; a first and a second indicator members, each of said indicator members having at least portions thereof having a radius greater than the radius of all the tape wound on one of said hubs, one of said indicator members being secured to each of said hubs adjacent opposite walls of said housing, each of said members having said portions thereof viewable through its respective viewing aperture when said huBs are rotating, said indicator members being so configured to permit generally unobstructed viewing of the disposition of the tape within said aperture.
Claim 12
Dependent Claim
202 words
In a magnetic recording tape cassette the combination comprising: a housing having a generally parallel upper and lower walls therein; a first and second pair of aligned apertures in the walls in an axial direction perpendicular to the plane of the walls; a first and a second hub members axially aligned with each pair of apertures for rotational movement with respect to the housing; a length of magentic recording tape having one end thereof secured to said first hub and the other end thereof secured to said second hub for winding therebetween; a pair of aligned generally rectangular viewing apertures in said walls between said hubs for viewing the tape therein; a first and a second indicator members, each of said indicator members having at least portions thereof having a radius greater than the radius of all the tape wound on one of said hubs, one of said indicator members being secured to each of said hubs adjacent opposite walls of said housing, each of said members having said portions thereof viewable through its respective viewing aperture when said huBs are rotating, said indicator members being so configured to permit generally unobstructed viewing of the disposition of the tape within said aperture.
Claim 13
Dependent Claim
21 words
The combination according to claim 10 wherein said indicator member is a transparent disc with markings thereon viewable through the aperture.
Claim 14
Dependent Claim
14 words
The combination according to claim 11 wherein the markings are radially extending colored lines.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-08-13 | 1977-02-12 | 1977-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-13 | 1981-02-12 | 1981-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-13 | 1985-02-12 | 1985-08-14 | $7700.00 | Window Closed / Lapsed |