US4248345A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protective cap for a magnetic recording tape cassette
Assignee: Individual
•
Filing: 1979-05-24
•
Granted: 1981-02-03
•
Expires: 1999-05-24
Abstract
Abstract A protective cap for protecting the magnetic tape of a tape cassette from damage and exposure to dust while the tape cassette is not in operation. A plastic strip covers the apertures of the engaging wall of the tape cassette and is held in position by prongs integral therewith. The prongs project into the apertures. The plastic strip can be removed by gripping it at one end at which it extends beyond the end of the wall and by pulling it away from the tape cassette.
Inventors
- 👤 Robert C. Bowers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:25
CPC Classifications
G; G11; G11B; G11B23/00; G11B23/02; G11B23/04; G11B23/023
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
138 words
A protective cap for use with a tape cassette containing magnetic recording tape and including one generally flat wall defining at least one aperture which exposes said magnetic tape, said protective cap comprising: (a) a strip adapted to be juxtaposed to the outside surface of said wall and covering all of said apertures defined by said wall, said strip extending beyond at least one edge portion of said wall and extending to at most the width of said wall; and (b) means for maintaining said strip in position juxtaposed to the outside surface of said wall, said means including at least two prongs which project from one side of said strip and are adapted to project into one of said defined apertures, said prongs being spaced apart approximately the width of said aperture into which said prongs project.
Claim 2
Dependent Claim
138 words
A protective cap for use with a tape cassette containing magnetic recording tape and including one generally flat wall defining at least one aperture which exposes said magnetic tape, said protective cap comprising: (a) a strip adapted to be juxtaposed to the outside surface of said wall and covering all of said apertures defined by said wall, said strip extending beyond at least one edge portion of said wall and extending to at most the width of said wall; and (b) means for maintaining said strip in position juxtaposed to the outside surface of said wall, said means including at least two prongs which project from one side of said strip and are adapted to project into one of said defined apertures, said prongs being spaced apart approximately the width of said aperture into which said prongs project.
Claim 3
Dependent Claim
12 words
The protective cap of claim 1 in which said prongs are resilient.
Claim 4
Dependent Claim
13 words
The protective cap of claim 1 in which said strip includes plastic material.
Claim 5
Dependent Claim
13 words
The protective cap of claim 1 in which said prongs include plastic material.
Claim 6
Dependent Claim
15 words
The protective cap of claim 3 in which said prongs are integral with said strip.
Claim 7
Dependent Claim
28 words
The protective cap of claim 1 in which said prongs have a generally bowed shape and in which said prongs have end portions projecting inwardly toward one another.
Claim 8
Dependent Claim
100 words
A protective cap in combination with a tape cassette containing magnetic recording tape and including one generally flat wall, defining at least one aperture which exposes said magnetic tape, said protective cap comprising: (a) a strip, juxtaposed to the outside surface of said wall and covering all of said apertures defined by said wall, said strip extending beyond at most the two ends of said wall, and extending to at most the width of said wall; and (b) means for maintaining said strip in position juxtaposed to the outside surface of said wall, said means including at least two prongs.
Claim 9
Dependent Claim
100 words
A protective cap in combination with a tape cassette containing magnetic recording tape and including one generally flat wall, defining at least one aperture which exposes said magnetic tape, said protective cap comprising: (a) a strip, juxtaposed to the outside surface of said wall and covering all of said apertures defined by said wall, said strip extending beyond at most the two ends of said wall, and extending to at most the width of said wall; and (b) means for maintaining said strip in position juxtaposed to the outside surface of said wall, said means including at least two prongs.
Claim 10
Dependent Claim
142 words
A protective cap for use with a tape cassette containing magnetic recording tape and including one generally flat wall defining at least one aperture which exposes said magnetic tape, said protective cap comprising: (a) a strip adapted to be juxtaposed to the outside surface of said wall and covering all of said apertures defined by said wall, said strip extending to at most the width of said wall; (b) means for maintaining said strip in position juxtaposed to the outside surface of said wall, said means including at least two prongs which project from one side of said strip and are adapted to project into one of said defined apertures, said prongs being spaced apart approximately the width of said aperture into which said prongs project; and (c) means for removing said strip from juxtaposition with the outside surface of said wall.
Claim 11
Dependent Claim
142 words
A protective cap for use with a tape cassette containing magnetic recording tape and including one generally flat wall defining at least one aperture which exposes said magnetic tape, said protective cap comprising: (a) a strip adapted to be juxtaposed to the outside surface of said wall and covering all of said apertures defined by said wall, said strip extending to at most the width of said wall; (b) means for maintaining said strip in position juxtaposed to the outside surface of said wall, said means including at least two prongs which project from one side of said strip and are adapted to project into one of said defined apertures, said prongs being spaced apart approximately the width of said aperture into which said prongs project; and (c) means for removing said strip from juxtaposition with the outside surface of said wall.
Claim 12
Dependent Claim
120 words
A protective cap in combination with a tape cassette containing magnetic recording tape and including one generally flat wall, defining at least one aperture which exposes said magnetic tape, said protective cap comprising: (a) a strip, said strip being juxtaposed to the outside surface of said wall and covering all of said apertures defined by said wall, said strip extending to at most the width of said wall; (b) means for maintaining said strip in position juxtaposed to the outside surface of said wall, said means including at least two prongs; and (c) means for removing said strip from juxtaposition to the outside surface of said wall, said means including said strip extending beyond an edge portion of said wall.
Claim 13
Dependent Claim
120 words
A protective cap in combination with a tape cassette containing magnetic recording tape and including one generally flat wall, defining at least one aperture which exposes said magnetic tape, said protective cap comprising: (a) a strip, said strip being juxtaposed to the outside surface of said wall and covering all of said apertures defined by said wall, said strip extending to at most the width of said wall; (b) means for maintaining said strip in position juxtaposed to the outside surface of said wall, said means including at least two prongs; and (c) means for removing said strip from juxtaposition to the outside surface of said wall, said means including said strip extending beyond an edge portion of said wall.
References Cited (Backward Citations)
GB734857A
Cited
US3015408A
Cited
FR1498288A
Cited
US3638788A
Cited
US3603478A
Cited
US3746180A
Cited
US3909088A
Cited
US3759465A
Cited
US4030602A
Cited
US4098402A
Cited
US4140219A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-02-03 | 1984-08-04 | 1985-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-02-03 | 1988-08-04 | 1989-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-02-03 | 1992-08-04 | 1993-02-03 | $7700.00 | Window Closed / Lapsed |