Patent US4044959A successfully refreshed from Google Patents.
Patent US4213162A successfully refreshed from Google Patents.
US4213162A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic tape cartridge transducing apparatus and method
Assignee: Individual
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Filing: 1977-12-30
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Granted: 1980-07-15
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Expires: 1997-12-30
Abstract
Abstract An apparatus and method are provided for transducing information with respect to magnetic tape supplied and supported within a magazine or cartridge. In one form, the tape in the magazine extends from a supply reel to a take-up reel and a free length thereof between the supply and take-up reel is exposed to the exterior of the magazine as it is driven past a semi-cylindrical supporting surface forming part of the magazine. Either by movement of the magazine and/or a drum-shaped support for a number of magnetic transducers, into engagement with each other, the tape is made to conform to the semi-cylindrical surface support of the magazine and to the cylindrically shaped surface of the drum supporting the transducers. Thereafter the tape is driven from the supply to the take-up reel against or closely adjacent to the drum-shaped transducer support in a manner such that one or more magnetic heads supported by the drum scan transverse tracks of the magnetic tape. In so doing, high speed magnetic recording and/or reproduction of information, such as video information generated in the megahertz frequency range may be recorded along the transverse tracks of the tape without the need for driving the tape at extremely high speeds.
Inventors
- 👤 Jerome H. Lemelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:35
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/60; G11B15/61; G11B15/615
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
189 words
Magnetic tape transducing apparatus comprising in combination with a magazine containing magnetic tape, supply means for said tape and means for guiding a free length of said tape from said supply means, a support including means for receiving and predeterminately positioning said magazine on said support, take-up means for said tape, magnetic transducing means, rotatable drum means having an elongated cylindrical surface rotatably supported by said support and supporting said transducing means with the operating end of said transducing means disposed at the cylindrical surface of said rotatable drum means, concave arcuate surface means supported by said magazine for cooperating with said cylindrical surface of said rotatable drum means whereby the transducing means supported by said rotatable drum means may scan said tape, power means for rotating said rotatable drum means, means for driving said tape from said supply means to said take-up means while said tape is engaged against said cylindrical surface by said concave arcuate surface means and while said rotatable means rotates to cause said transducing means to transversely scan said tape and to permit said transducing means to transduce signals with respect to said tape.
Claim 2
Dependent Claim
189 words
Magnetic tape transducing apparatus comprising in combination with a magazine containing magnetic tape, supply means for said tape and means for guiding a free length of said tape from said supply means, a support including means for receiving and predeterminately positioning said magazine on said support, take-up means for said tape, magnetic transducing means, rotatable drum means having an elongated cylindrical surface rotatably supported by said support and supporting said transducing means with the operating end of said transducing means disposed at the cylindrical surface of said rotatable drum means, concave arcuate surface means supported by said magazine for cooperating with said cylindrical surface of said rotatable drum means whereby the transducing means supported by said rotatable drum means may scan said tape, power means for rotating said rotatable drum means, means for driving said tape from said supply means to said take-up means while said tape is engaged against said cylindrical surface by said concave arcuate surface means and while said rotatable means rotates to cause said transducing means to transversely scan said tape and to permit said transducing means to transduce signals with respect to said tape.
Claim 3
Dependent Claim
20 words
A magnetic tape transducing means in accordance with claim 1 wherein said tape guide means is supported by said magazine.
Claim 4
Dependent Claim
48 words
A magnetic tape transducing apparatus in accordance with claim 2 wherein said concave arcuate surface tape guide means is defined by a wall of said magazine and means supported by said magazine for guiding a free length of said tape adjacent said wall containing said concave arcuate surface.
Claim 5
Dependent Claim
34 words
A magnetic transducing apparatus in accordance with claim 2 wherein said magazine is made of molded plastic resin and said arcuate surface is defined by a portion of the molded plastic of said magazine.
Claim 6
Dependent Claim
40 words
A magnetic transducing apparatus in accordance with claim 1 wherein said means for causing said tape of said magazine to conform to a portion of the cylindrical surface of said rotatable means includes a resilient material supported by said magazine.
Claim 7
Dependent Claim
104 words
A magnetic tape transducing apparatus in accordance with claim 1, said magazine being formed with an end wall, said concave arcuate surface means defined by an arcuate surface portion of said end wall and defining said means for causing said tape to longitudinally conform to said cylindrical surface of said rotatable means, and means for retaining said magazine at an operable location on said support whereby said arcuate surface portion of said magazine end wall and said cylindrical surface of said rotatable means are in conformance with each other and said tape is disposed therebetween when said magazine is operably located on said support.
Claim 8
Dependent Claim
42 words
A magnetic tape transducing apparatus in accordance with claim 1, said magazine having said means for causing said tape to longitudinally conform to the cylindrical surface of said rotatable means extending between and supported by the major side walls of said magazine.
Claim 9
Dependent Claim
33 words
A magnetic tape transducing apparatus in accordance with claim 7 wherein said means for causing said magnetic tape to conform to said cylindrical surface is an extension of a wall of said magazine.
Claim 10
Dependent Claim
38 words
A magnetic transducing apparatus in accordance with claim 7 wherein said means causing said tape to conform to the cylindrical surface of said rotatable means extends at an angle with respect to an end wall of said magazine.
Claim 11
Dependent Claim
58 words
A magnetic transducing apparatus in accordance with claim 1 wherein said rotatable means has a barrel shaped surface with a central cylindrically shaped portion supporting said transducing means for receiving and gradually deforming said tape to make it conform to the cylindrically shaped portion thereof and to guide said tape to a flat condition beyond said rotatable means.
Claim 12
Dependent Claim
210 words
Magnetic tape transducing apparatus comprising in combination with a magazine containing magnetic tape, an opening in said magazine, supply and take-up means for said tape supported by said magazine, and means for guiding said tape between said supply and take-up means past said opening in said magazine to present a length of said tape exposed to the exterior of said magazine adjacent said opening, a support, magnetic transducing means, a drum supporting said magnetic transducing means, means for rotationally supporting said drum on said support for rotation of said drum and said magnetic transducing means about the longitudinal axis of said drum, means supported by said support for receiving and predeterminately positioning said magazine on said support so as to locate said opening in said magazine in alignment with said drum and to dispose at least a portion of the length of said tape extending adjacent said opening against and longitudinally of said drum whereby, when the drum is rotated, it will cause said transducing means to transversely scan said tape, means for power rotating said drum and driving said tape between said supply and said takde-up means of said magazine to cause said transducing means to scan and transduce information with respect to parallel transverse tracks of said tape.
Claim 13
Dependent Claim
210 words
Magnetic tape transducing apparatus comprising in combination with a magazine containing magnetic tape, an opening in said magazine, supply and take-up means for said tape supported by said magazine, and means for guiding said tape between said supply and take-up means past said opening in said magazine to present a length of said tape exposed to the exterior of said magazine adjacent said opening, a support, magnetic transducing means, a drum supporting said magnetic transducing means, means for rotationally supporting said drum on said support for rotation of said drum and said magnetic transducing means about the longitudinal axis of said drum, means supported by said support for receiving and predeterminately positioning said magazine on said support so as to locate said opening in said magazine in alignment with said drum and to dispose at least a portion of the length of said tape extending adjacent said opening against and longitudinally of said drum whereby, when the drum is rotated, it will cause said transducing means to transversely scan said tape, means for power rotating said drum and driving said tape between said supply and said takde-up means of said magazine to cause said transducing means to scan and transduce information with respect to parallel transverse tracks of said tape.
Claim 14
Dependent Claim
30 words
Magnetic tape transducing apparatus in accordance with claim 11 wherein said drum varies in diameter along its length to facilitate conformation of said tape with the surface of said drum.
Claim 15
Dependent Claim
37 words
Magnetic tape transducing apparatus in accordance with claim 12 including means for moving said magazine in a fixed path on said support to being the tape of said magazine into and out of engagement with said drum.
Claim 16
Dependent Claim
38 words
Magnetic tape transducing apparatus in accordance with claim 11 including means supported by said magazine for causing said tape to conform to the surface of said drum when said magazine is operatively rotated with respect to said drum.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-07-15 | 1984-01-14 | 1984-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-07-15 | 1988-01-14 | 1988-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-07-15 | 1992-01-14 | 1992-07-15 | $7700.00 | Window Closed / Lapsed |