US3589579A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bidirectional random bin tape drive system
Assignee: Leach Corp
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Filing: 1969-05-08
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Granted: 1971-06-29
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Expires: 1989-05-08
Abstract
Abstract A drive system for bidirectionally driving a tape of an endless loop random bin tape system is disclosed. The tape is driven across a transducer assembly by a pair of differential capstans. The storage bin has a pair of entrance and/or exit passages communicating with the transducer portion of the recording and reproducing system. At each entrance and/or exit location there is provided an endless belt drive puck pair which makes frictional contact with the magnetic tape. The endless belt drive puck pair always move in the direction tending to urge the tape into the bin irrespective of the actual direction of tape movement. Each pair provides the necessary tape-driving force to drive the tape into the bin in one direction and conversely they will, when the tape moves in an opposite direction, tend to reject spurious loops which are drawn to the bin exit passage.
Inventors
- 👤 Gordon Richard Schulz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:29
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/70; G11B15/18; G11B15/26; G11B23/00; G11B23/02; G11B23/12
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
146 words
In a magnetic tape recording apparatus for moving an endless loop tape across a transducer assembly, the combination which comprises: an endless loop tape storage bin having at least one opening therein; tape driving means for moving the tape from the storage bin through the opening past the transducer assembly; and guard means for preventing spurious loops of said tape from exiting the storage bin, said guard means including a first movable surface contacting one side of the tape at the opening and a second movable surface contacting the opposite side of the tape at the opening, said first movable surface moving in a direction substantially opposite to the direction of tape movement to urge spurious loops contacting said first movable surface away from the area of said opening, said second movable surface moving in a direction substantially opposite to the direction of the tape movement.
Claim 2
Dependent Claim
146 words
In a magnetic tape recording apparatus for moving an endless loop tape across a transducer assembly, the combination which comprises: an endless loop tape storage bin having at least one opening therein; tape driving means for moving the tape from the storage bin through the opening past the transducer assembly; and guard means for preventing spurious loops of said tape from exiting the storage bin, said guard means including a first movable surface contacting one side of the tape at the opening and a second movable surface contacting the opposite side of the tape at the opening, said first movable surface moving in a direction substantially opposite to the direction of tape movement to urge spurious loops contacting said first movable surface away from the area of said opening, said second movable surface moving in a direction substantially opposite to the direction of the tape movement.
Claim 3
Dependent Claim
145 words
In a tape recording apparatus for moving an endless loop tape bidirectionally across a transducer assembly, the combination which comprises: an endless loop random tape storage bin having a first and second opening therein; tape driving means for bidirectionally moving the tape from the storage bin through one of said openings past the transducer assembly back into the storage bin through the other of said openings; a first movable surface contacting a surface of the tape at said first opening and moving in a direction tending to urge the tape into the storage bin proximate said first opening iRrespective of the direction of tape movement; and a second movable surface contacting a surface of the tape at said second opening and moving in a direction tending to urge the tape into the storage bin proximate said second opening irrespective of the direction of tape movement.
Claim 4
Dependent Claim
145 words
In a tape recording apparatus for moving an endless loop tape bidirectionally across a transducer assembly, the combination which comprises: an endless loop random tape storage bin having a first and second opening therein; tape driving means for bidirectionally moving the tape from the storage bin through one of said openings past the transducer assembly back into the storage bin through the other of said openings; a first movable surface contacting a surface of the tape at said first opening and moving in a direction tending to urge the tape into the storage bin proximate said first opening iRrespective of the direction of tape movement; and a second movable surface contacting a surface of the tape at said second opening and moving in a direction tending to urge the tape into the storage bin proximate said second opening irrespective of the direction of tape movement.
Claim 5
Dependent Claim
52 words
The combination of claim 2 further comprising: third and fourth movable surfaces one each associated with said first and second movable surfaces, each of said third and fourth surfaces contacting the tape on the side opposite that contacted by its associated surface and moving in the same direction as its associated surface.
Claim 6
Dependent Claim
28 words
The combination of claim 3 wherein there are first and second rotatably mounted pucks, the peripheral surfaces of said pucks forming said first and second movable surfaces respectively.
Claim 7
Dependent Claim
27 words
The combination of claim 4 wherein there are first and second movable endless belts, the outer surfaces of said belts forming said third and fourth surfaces respectively.
Claim 8
Dependent Claim
60 words
The combination of claim 2 further comprising: first and second rotatably mounted tape guides one each associated with said first and second openings, the tape being wrapped around a portion of the periphery of each tape guide; and means for preventing rotational motion of each of said tape guides when an associated opening is functioning as a bin output opening.
Claim 9
Dependent Claim
62 words
The combination of claim 5 wherein said tape-driving means includes first and second bidirectionally driven capstans, the tape being wrapped around a portion of the periphery of each capstan, the combination further comprising: means for driving said capstan in a first and second direction; and means responsive to said capstan-driving means for driving said pucks and said endless belts in fixed directions.
Claim 10
Dependent Claim
35 words
The combination of claim 7 wherein the surfaces of the puck and endless belt associated with an input opening are driven past said input opening at a speed greater than the speed of the tape.
Claim 11
Independent Claim
76 words
A method of bidirectionally driving tape from a random bin storage location through a first opening therein across a transducer assembly back into the storage location through a second opening therein comprising the steps of: pulling the tape from the bin through one of said openings; and moving a pair of surfaces, each in frictional contact with a surface of the tape at said one opening, in a direction opposite to the direction of tape movement.
Claim 12
Independent Claim
76 words
A method of bidirectionally driving tape from a random bin storage location through a first opening therein across a transducer assembly back into the storage location through a second opening therein comprising the steps of: pulling the tape from the bin through one of said openings; and moving a pair of surfaces, each in frictional contact with a surface of the tape at said one opening, in a direction opposite to the direction of tape movement.
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) | 1974-06-28 | 1974-12-28 | 1975-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-28 | 1978-12-28 | 1979-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-28 | 1982-12-28 | 1983-06-29 | $7700.00 | Window Closed / Lapsed |