Patent US3718290A successfully refreshed from Google Patents.
US3718290A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recording tape segment indicator
Assignee: Individual
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Filing: 1971-01-27
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Granted: 1973-02-27
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Expires: 1991-01-27
Abstract
Abstract A transparent window of a recording tape container or cassette has longitudinally spaced markings disposed directly over the tape supply winding indicating the location of internal prerecorded tape segments. Precision measurements are made of the beginning or end of each segment with respect to the center of the supply reel and the end of the window. The tape recording is played in a standard cassette record player and the radial edge of the tape at the selected point is magnified and measured. Marks indicating the window ends and segments are placed on a magnified scale pattern which is photoreduced to normal size and printed repetitively on transparent plastic sheets. The sheets are cut to the size of the window which is inserted into the cassette opening with the marks, such as dots, positioned directly over the internal segment points on a repetitive basis for mass produced tape recordings.
Inventors
- 👤 R Wright
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:22
CPC Classifications
G; G11; G11B; G11B23/00; G11B23/02; G11B23/04; G11B23/08; G11B23/087; G11B23/08707; G11B23/0875; Y; Y10; Y10S; Y10S242/00; Y10S242/912
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
150 words
A recording tape segment indicator device comprising, a tape container; a tape supply reel and winding mounted within said container adjacent one end, said tape winding including a plurality of separate pre-recorded segments; a take-up reel mounted within said container adjacent the other end; driving means connected to said reels and adapted for coupling through a wall of said container; a side wall of said container having a central opening extending longitudinally between said reels over said tape winding; a transparent window in said opening; means on said window for establishing a reference point with respect to a fixed position at said tape winding; and a plurality of irregularly spaced selectively positioned markings on said window directly over predeTermined internal portions of said tape winding, each marking being disposed at a longitudinal position from said reference point corresponding to the location of a respective pre-recorded segment within said tape winding.
Claim 2
Dependent Claim
150 words
A recording tape segment indicator device comprising, a tape container; a tape supply reel and winding mounted within said container adjacent one end, said tape winding including a plurality of separate pre-recorded segments; a take-up reel mounted within said container adjacent the other end; driving means connected to said reels and adapted for coupling through a wall of said container; a side wall of said container having a central opening extending longitudinally between said reels over said tape winding; a transparent window in said opening; means on said window for establishing a reference point with respect to a fixed position at said tape winding; and a plurality of irregularly spaced selectively positioned markings on said window directly over predeTermined internal portions of said tape winding, each marking being disposed at a longitudinal position from said reference point corresponding to the location of a respective pre-recorded segment within said tape winding.
Claim 3
Dependent Claim
28 words
The device of claim 1 wherein said tape winding is of magnetic recording tape and said markings indicate selectively the beginning and end of successive internal tape segments.
Claim 4
Dependent Claim
35 words
The device of claim 2 wherein said tape segment indicating markings are spaced in a generally radial direction at predetermined distances from the center of said supply reel along a central area of said window.
Claim 5
Dependent Claim
24 words
The device of claim 3 wherein said markings are in the form of dots of opaque printing material on a surface of said window.
Claim 6
Dependent Claim
44 words
The device of claim 3 wherein said means for establishing a reference point includes additional markings adjacent the ends of said window defining the location of said window ends relative to the center of said supply reel and with respect to said segment markings.
Claim 7
Dependent Claim
14 words
The device of claim 3 wherein said window is detachably secured within said opening.
Claim 8
Dependent Claim
117 words
The device of claim 3 wherein said container includes a reversible tape cassette having substantially symmetrical opposite side walls, said tape winding having two recording tracks one on each side of said tape adjacent respective opposite side walls, each track having a plurality of recorded segments, said reels being reversible so that said take-up reel with respect to one side wall is a supply reel with respect to the opposite side wall, and said supply reel with respect to said one side wall is a take-up reel with respect to said opposite side wall, each said side wall having a central opening and transparent window with said segment markings thereon over respective said supply reel tape windings.
Claim 9
Dependent Claim
31 words
The device of claim 5 wherein said additional markings are at the corners of each said window end defining the length and width of said window with respect to said opening.
Claim 10
Dependent Claim
39 words
The device of claim 6 wherein said window opening is generally rectangular and includes laterally extending slots in the edges of the wall along each end of said opening, opposite side ends of said window engaging respective said slots.
Claim 11
Dependent Claim
19 words
The device of claim 7 wherein said segment markings are disposed on the under surface of each said window.
Claim 12
Dependent Claim
14 words
The device of claim 7 wherein said segment markings includes dots of different colors.
References Cited (Backward Citations)
US2937818A
Cited
US3565367A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-02-27 | 1976-08-28 | 1977-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-27 | 1980-08-28 | 1981-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-27 | 1984-08-28 | 1985-02-27 | $7700.00 | Window Closed / Lapsed |