US3638880A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tape transport apparatus and cartridge therefor
Assignee: American Videonetics Corp
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Filing: 1969-11-03
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Granted: 1972-02-01
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Expires: 1989-11-03
Abstract
Abstract A tape transport wherein supply and takeup rolls are engaged by a resilient drive body disposed between the rolls, and urged against the rolls by means independent of the tape. Unidirectional brake means restrain rotation of the supply roll so as to tension a span of tape disposed between the rolls during feeding thereof. In one embodiment, a motor drives the rotating body directly. The brakes, applied at the hub of the supply roll, are individual to that particular supply roll to be carried therewith for use on all machines. In another embodiment, the drive body serves as a transfer roller to transfer forces between the rolls whereby one of two motors respectively connected to supply and takeup rolls drives the takeup roll while the other motor applies a drag to the rotation of the supply roll. In reverse feeding of tape, the functions of the two motors are reversed.
Inventors
- 👤 Ashley J Hollingsworth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:55
CPC Classifications
G; G11; G11B; G11B23/00; G11B23/02; G11B23/04; G11B23/08; G11B23/087; G11B15/00; G11B15/18; G11B15/1883; G11B15/22; G11B15/26; G11B15/28; G11B15/29; G11B15/295; G11B15/46; G11B15/48; G11B15/60; G11B15/66; G11B15/67
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
204 words
In a tape transport of a type for feeding a length of pliable recording tape wrapped to form supply and takeup rolls, the combination comprising a rotatable resilient body disposed between said rolls and substantially continuously engaging and rotating said rolls during feeding of tape, means for rotatably supporting the supply and takeup rolls to advance and retreat relative to said body respectively in a direction defined substantially along a radius of the roll and passing substantially through the axis of rotation of said body to maintain continuous engagement between said body and said rolls during rapid changes in the speed of the rolls while feeding tape, means independent of the tape for yieldingly urging said rolls in said direction against said body during rotation thereof for forming said tape tightly upon their respective said rolls, means forming a guide channel leading around the periphery of the body and adjacent thereto to lead the tape free of the surface oF said body to form an unsupported span disposed and adapted to cooperate with a transducer adjacent the body, and drag brake means serving to restrain rotation of the supply roll to tension a portion of the tape between the rolls during the feeding thereof.
Claim 2
Dependent Claim
204 words
In a tape transport of a type for feeding a length of pliable recording tape wrapped to form supply and takeup rolls, the combination comprising a rotatable resilient body disposed between said rolls and substantially continuously engaging and rotating said rolls during feeding of tape, means for rotatably supporting the supply and takeup rolls to advance and retreat relative to said body respectively in a direction defined substantially along a radius of the roll and passing substantially through the axis of rotation of said body to maintain continuous engagement between said body and said rolls during rapid changes in the speed of the rolls while feeding tape, means independent of the tape for yieldingly urging said rolls in said direction against said body during rotation thereof for forming said tape tightly upon their respective said rolls, means forming a guide channel leading around the periphery of the body and adjacent thereto to lead the tape free of the surface oF said body to form an unsupported span disposed and adapted to cooperate with a transducer adjacent the body, and drag brake means serving to restrain rotation of the supply roll to tension a portion of the tape between the rolls during the feeding thereof.
Claim 3
Dependent Claim
46 words
In a tape transport according to claim 1 further comprising means supporting said brake means to be carried with said rolls readily detachable from and independently of the transport to provide each roll with its own tension characteristic notwithstanding use of the roll on various transports.
Claim 4
Dependent Claim
135 words
In a tape transport of a type for feeding a length of pliable recording tape wrapped to form supply and takeup rolls, the combination comprising means for rotatably supporting a supply and takeup roll, a rotatable resilient body disposed between said rolls to engage and rotate with the rolls, the axis of said body being movable relative to the rolls and means urging the body against the rolls to maintain continuous engagement between said body and said rolls during changes in the diameter of the rolls while feeding tape, and first and second motive means associated with each of said rolls respectively to be alternately activated for driving one of the rolls for winding tape thereon while the inactive one of said motive means serves to restrain the tape being withdrawn from the other roll.
Claim 5
Dependent Claim
135 words
In a tape transport of a type for feeding a length of pliable recording tape wrapped to form supply and takeup rolls, the combination comprising means for rotatably supporting a supply and takeup roll, a rotatable resilient body disposed between said rolls to engage and rotate with the rolls, the axis of said body being movable relative to the rolls and means urging the body against the rolls to maintain continuous engagement between said body and said rolls during changes in the diameter of the rolls while feeding tape, and first and second motive means associated with each of said rolls respectively to be alternately activated for driving one of the rolls for winding tape thereon while the inactive one of said motive means serves to restrain the tape being withdrawn from the other roll.
Claim 6
Dependent Claim
84 words
In a tape transport according to claim 1 wherein said supply roll comprises a hub, a length of pliable tape wrapped therearound to form a roll, and means forming an envelope around the roll, an opening in the envelope for withdrawing tape from the roll, means supporting said hub for rotation within said envelope, and said drag brake means comprising unidirectional brake means carried by said envelope and serving to apply greater restraint to the unwinding of the tape than to the winding thereof.
Claim 7
Dependent Claim
188 words
A tape transport apparatus of a type having a base comprising a pair of spaced drive spindles and first and second motive means for driving one or the other in opposite directions, transducer means carried by the base, a resilient rotatable body carried by the base, a tape cartridge comprising a hollow case, a pair of hubs journaled in the case, an elongated pliable recording tape wrapped partially about both of said hubs to form rolls of tape, said hubs being formed to engage said spindles for feeding tape from one hub to the other via said transducer means, said motive means serving to provide means for applying a braking restraint to rotation of the hubs respectively in opposite directions, an opening in said case to receive said body in the plane of said rolls to engage both rolls simultaneously, means for urging said body against both rolls during feeding of tape to form the tape tightly upon one of the hubs, and another opening in said case to receive said transducer means at a position disposed in the path of that tape extending between the two rolls.
Claim 8
Dependent Claim
188 words
A tape transport apparatus of a type having a base comprising a pair of spaced drive spindles and first and second motive means for driving one or the other in opposite directions, transducer means carried by the base, a resilient rotatable body carried by the base, a tape cartridge comprising a hollow case, a pair of hubs journaled in the case, an elongated pliable recording tape wrapped partially about both of said hubs to form rolls of tape, said hubs being formed to engage said spindles for feeding tape from one hub to the other via said transducer means, said motive means serving to provide means for applying a braking restraint to rotation of the hubs respectively in opposite directions, an opening in said case to receive said body in the plane of said rolls to engage both rolls simultaneously, means for urging said body against both rolls during feeding of tape to form the tape tightly upon one of the hubs, and another opening in said case to receive said transducer means at a position disposed in the path of that tape extending between the two rolls.
Claim 9
Dependent Claim
161 words
A tape transport assembly comprising a tape transport having a pair of spaced drive spindles protruding in a common direction from a transport base, and having a rotatable resilient annular body disposed in a plane substantially normal to said spindles, a cartridge comprising a hollow generally planar case, a pair of hubs journaled in said case to engage and be driven by said spindles and to rotate in their own planes at spaced positions within the case, a length of pliable tape wrapped about both of said hubs to form a pair of tape rolls with the rolls interconnected by a span of said tape, an opening formed in the peripheral edge of said case opposite said span and dimensioned and adapted to accommodate entry of said body in the plane of the rolls for transferring forces therebetween via said body, and another opening in said case adapted to accommodate entry of transducer means to cooperate with said span of tape.
Claim 10
Dependent Claim
161 words
A tape transport assembly comprising a tape transport having a pair of spaced drive spindles protruding in a common direction from a transport base, and having a rotatable resilient annular body disposed in a plane substantially normal to said spindles, a cartridge comprising a hollow generally planar case, a pair of hubs journaled in said case to engage and be driven by said spindles and to rotate in their own planes at spaced positions within the case, a length of pliable tape wrapped about both of said hubs to form a pair of tape rolls with the rolls interconnected by a span of said tape, an opening formed in the peripheral edge of said case opposite said span and dimensioned and adapted to accommodate entry of said body in the plane of the rolls for transferring forces therebetween via said body, and another opening in said case adapted to accommodate entry of transducer means to cooperate with said span of tape.
References Cited (Backward Citations)
US2605056A
Cited
US2775407A
Cited
US3130975A
Cited
US3064916A
Cited
US3203636A
Cited
US3258215A
Cited
FR1427665A
Cited
US3482800A
Cited
US3489369A
Cited
US3526371A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-01-31 | 1975-08-02 | 1976-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-31 | 1979-08-02 | 1980-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-31 | 1983-08-02 | 1984-02-01 | $7700.00 | Window Closed / Lapsed |