US4965690A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tape cassette having outer housing layers of elastomeric material
Assignee: TDK Corp
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Filing: 1988-12-21
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Granted: 1990-10-23
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Expires: 2008-12-21
Abstract
Abstract A tape cassette including an upper and a lower half housing sections each of which is comprised of an inner housing layer and an outer housing layer formed integrally on the outer surface of the inner layer, the upper and lower half housing sections containing a tape and reels on which the tape is wound or unwound inside the inner housing layers and having guide members located close to the front end of the housing to guide the tape, characterized in that said outer housing layers are molded from a thermoplastic elastomeric material to impart anti-shock or vibration property.
Inventors
- 👤 Kimio Tanaka
- 👤 Haruo Shiba
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:27
CPC Classifications
G; G11; G11B; G11B23/00; G11B23/02; G11B23/04; G11B23/08; G11B23/087; G11B23/08707; G11B23/08785
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
115 words
In a tape cassette having a housing, said housing having a front end and including upper and lower half housing sections each of which is comprised of an inner housing layer with an outer surface and an outer housing layer formed integrally on the outer surface of the inner housing layer, said upper and lower half housing sections defining a space between the inner housing layers for containing a tape and reels on which the tape is wound or unwound and having guide members located close to the front end of the housing to guide the tape, the improvement wherein the outer housing layers on the housing sections are molded from a thermoplastic elastomeric material.
Claim 2
Dependent Claim
115 words
In a tape cassette having a housing, said housing having a front end and including upper and lower half housing sections each of which is comprised of an inner housing layer with an outer surface and an outer housing layer formed integrally on the outer surface of the inner housing layer, said upper and lower half housing sections defining a space between the inner housing layers for containing a tape and reels on which the tape is wound or unwound and having guide members located close to the front end of the housing to guide the tape, the improvement wherein the outer housing layers on the housing sections are molded from a thermoplastic elastomeric material.
Claim 3
Dependent Claim
30 words
A tape cassette according to claim 1 wherein said thermoplastic elastomeric material constituting said outer housing layers is mixed with from 5 to 60 percent by weight of a fluoroplastic.
Claim 4
Dependent Claim
34 words
A tape cassette according to claim 1 wherein said plastic material constituting said inner housing layers is selected from the group consisting of PA, PMMA, AS, PC, ABS, PS, Hi-PS, PBT and the like.
Claim 5
Dependent Claim
84 words
A tape cassette according to claim 1 wherein said inner and outer housing layers define top and bottom walls, one of said top and bottom walls having a predetermined thickness, said inner housing layers are formed at least partially of a transparent plastic material, there being a window in the outer layer in the one of the top and bottom walls into which the transparent plastic material extends, the transparent plastic material in the window having a thickness no greater than said predetermined thickness.
Claim 6
Dependent Claim
34 words
A tape cassette according to claim 1, wherein the thermoplastic elastomeric material is selected from the group consisting of styrenic elastomer, olefinic elastomer, polyester elastomer, polyurethane elastomer, polyamide elastomer, polybutadiene, and vinyl chloride elastomer.
References Cited (Backward Citations)
US4791503A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-10-22 | 1994-04-23 | 1994-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-10-22 | 1998-04-23 | 1998-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-10-22 | 2002-04-23 | 2002-10-23 | $7700.00 | Window Closed / Lapsed |