Patent US4842217A successfully refreshed from Google Patents.
US4842217A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self destruct video tape cassette
Assignee: Individual
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Filing: 1988-08-22
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Granted: 1989-06-27
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Expires: 2008-08-22
Abstract
Abstract A video tape cassette including a supply reel and a take-up reel and guide rollers for guiding the tape from said supply reel to the take-up reel. A portion of the tape is accessible to the reading head of a video player. A mutilating device, such as a cutting blade, is positioned adjacent the path of the leading portion of the tape so that the tape will be cut into strips prior to rewinding the tape on the take-up reel, whereby the video cassette is suitable for a one time only viewing. A cap is provided for locking the supply reel to the housing of the video tape cassette during shipment to prevent rotation of the supply reel. A simple dust cover is provided which may be completely removed from the video tape cassette and which seals the video tape cassette during shipment.
Inventors
- 👤 David A. Vinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 16:07
CPC Classifications
G; G11; G11B; G11B23/00; G11B23/02; G11B23/04; G11B23/08; G11B23/087; G11B23/28; Y; Y10; Y10S; Y10S242/00; Y10S242/911
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
165 words
A video tape cassette adapted to be removably inserted into a video tape cassette machine which includes a magnetic reading head, said cassette comprising: a housing defining a generally enclosed chamber; a supply reel and a take-up reel rotatably mounted within said chamber, said supply reel adapted to have wound thereon a flexible magnetic tape having pre-recorded information thereon, said magnetic tape including a substrate and a layer of magnetic material thereon; said take-up reel adapted to take up said tape from said supply reel, a portion of said tape being accessible to a reading head as said tape is being wound on said take-up reel; and mutilating means mounted in said chamber for physically progressively and continuously puncturing said substrate and layer of magnetic material to mutilate of said tape as it is being would onto the take-up reel, whereby said tape may be read only once for a one time viewing of the pre-recorded information prior to the progressive mutilation of said tape.
Claim 2
Dependent Claim
165 words
A video tape cassette adapted to be removably inserted into a video tape cassette machine which includes a magnetic reading head, said cassette comprising: a housing defining a generally enclosed chamber; a supply reel and a take-up reel rotatably mounted within said chamber, said supply reel adapted to have wound thereon a flexible magnetic tape having pre-recorded information thereon, said magnetic tape including a substrate and a layer of magnetic material thereon; said take-up reel adapted to take up said tape from said supply reel, a portion of said tape being accessible to a reading head as said tape is being wound on said take-up reel; and mutilating means mounted in said chamber for physically progressively and continuously puncturing said substrate and layer of magnetic material to mutilate of said tape as it is being would onto the take-up reel, whereby said tape may be read only once for a one time viewing of the pre-recorded information prior to the progressive mutilation of said tape.
Claim 3
Dependent Claim
24 words
The cassette according to claim 1 wherein said mutilating means is a cutting blade for progressively cutting said tape into a plurality of strips.
Claim 4
Dependent Claim
18 words
The cassette according to claim 1 including a completely removable cover for said accessible portion of said tape.
Claim 5
Dependent Claim
20 words
The cassette according to claim 1 including means for preventing rotation of said supply reel during shipment of said tape.
Claim 6
Dependent Claim
35 words
The cassette according to claim 4 wherein said rotation preventing means comprises a cap for simultaneously engaging a hub of said supply reel and said housing, whereby said supply reel is locked to said housing.
Claim 7
Dependent Claim
21 words
The cassette according to claim 1 wherein said cassette housing is sealed and cannot be opened without destruction of said housing.
Claim 8
Dependent Claim
145 words
A video tape cassette adapted to be removably inserted into a video cassette recorder, said cassette comprising; a housing defining a generally enclosed chamber; a supply reel and take-up reel rotatably mounted in said chamber; a flexible magnetic tape including a substrate and a layer of magnetic material thereon said tape having prerecorded information thereon, said tape being wound on said supply reel and having a leading end portion thereof connected to said take-up reel; means supported by said housing for guiding said tape from said supply reel to said take-up reel along a predetermined path; mutilating means mounted on said housing adjacent said said substrate and layer of magnetic material to mutilate said tape as said tape is wound on said take-up real from said supply reel, whereby said tape may be read once only for a one time viewing of the pre-recoreded information.
Claim 9
Dependent Claim
145 words
A video tape cassette adapted to be removably inserted into a video cassette recorder, said cassette comprising; a housing defining a generally enclosed chamber; a supply reel and take-up reel rotatably mounted in said chamber; a flexible magnetic tape including a substrate and a layer of magnetic material thereon said tape having prerecorded information thereon, said tape being wound on said supply reel and having a leading end portion thereof connected to said take-up reel; means supported by said housing for guiding said tape from said supply reel to said take-up reel along a predetermined path; mutilating means mounted on said housing adjacent said said substrate and layer of magnetic material to mutilate said tape as said tape is wound on said take-up real from said supply reel, whereby said tape may be read once only for a one time viewing of the pre-recoreded information.
Claim 10
Dependent Claim
24 words
The cassette according to claim 7 wherein said mutilating means comprises a cutting blade for progressively cutting said tape into a plurality of strips.
Claim 11
Dependent Claim
18 words
The cassette according to claim 7 including a completely removable cover for said accessible portion of said tape.
Claim 12
Dependent Claim
20 words
The cassette according to claim 7 including means for preventing rotation of said supply reel during shipment of said cassette.
Claim 13
Dependent Claim
41 words
The cassette according to claim 10 wherein said rotation preventing means comprises a cap for engaging a hub of said supply reel and said housing, whereby said supply reel is locked to said housing to prevent rotation of said supply reel.
Claim 14
Dependent Claim
21 words
The cassette according to claim 7 wherein said cassette housing is sealed and cannot be opened without destruction of said housing.
Claim 15
Independent Claim
126 words
A method of using a video tape cassette having a housing enclosing a supply reel and a take-up reel with a magnetic tape wound on the supply reel and having the leading end thereof wound on the take-up reel, said tape including a substrate and a layer of magnetic material thereon, said method comprising the steps of; recording information on said tape; winding said tape on said supply reel; feeding said tape from the supply reel through a video cassette player; winding the tape on said take-up reel to provide for viewing of the pre-recorded information; and physically progressively and continuously puncturing said substrate and magnetic material to mutilating as said tape is wound on said take-up reel, thereby rendering said tape unfit for further viewing.
Claim 16
Independent Claim
126 words
A method of using a video tape cassette having a housing enclosing a supply reel and a take-up reel with a magnetic tape wound on the supply reel and having the leading end thereof wound on the take-up reel, said tape including a substrate and a layer of magnetic material thereon, said method comprising the steps of; recording information on said tape; winding said tape on said supply reel; feeding said tape from the supply reel through a video cassette player; winding the tape on said take-up reel to provide for viewing of the pre-recorded information; and physically progressively and continuously puncturing said substrate and magnetic material to mutilating as said tape is wound on said take-up reel, thereby rendering said tape unfit for further viewing.
Claim 17
Dependent Claim
13 words
The method according to claim 13 including the step of sealing said housing.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-06-26 | 1992-12-26 | 1993-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-06-26 | 1996-12-26 | 1997-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-06-26 | 2000-12-26 | 2001-06-27 | $7700.00 | Window Closed / Lapsed |