US3578337A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reversible drive for transducer used in a recording and reproducing apparatus
Assignee: International Business Machines Corp
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Filing: 1968-11-20
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Granted: 1971-05-11
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Expires: 1988-11-20
Abstract
Abstract A transducer is driven in reciprocating motion relative to a recording medium for scanning the medium by attaching a band having apertures therein to the transducer. Rotating means has means to engage the apertures in the band to provide positive engagement between the rotating means and the band. The direction of rotation of the rotating means is reversed at each end of scanning by the transducer. The change in direction of rotation of the rotating means is accomplished through a pivotally mounted member that locks a ball retaining member against rotation.
Inventors
- 👤 Walter F Klein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:25
CPC Classifications
G; G11; G11B; G11B25/00; G11B25/04
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
157 words
Apparatus for scanning a medium in a plurality of alternate directions including: transducer means; means for retaining the medium adjacent said transducer means for scanning; linear moving means attached to said transducer means, said linear moving means being movable in a first direction to drive said transducer means in one direction and movable in a second direction to drive said transducer means in another direction; rotatable means connected to said linear moving means to drive said linear moving means in the first and second directions; means to change the direction of rotation of said rotatable means when said transducer means completes movement in said one direction and is ready for movement in said another direction and vice versa; and means to step one of said transducer means and the medium relative to the other in a direction at an angle to the scanning directions at either end of movement of said transducer means in the scanning directions.
Claim 2
Dependent Claim
157 words
Apparatus for scanning a medium in a plurality of alternate directions including: transducer means; means for retaining the medium adjacent said transducer means for scanning; linear moving means attached to said transducer means, said linear moving means being movable in a first direction to drive said transducer means in one direction and movable in a second direction to drive said transducer means in another direction; rotatable means connected to said linear moving means to drive said linear moving means in the first and second directions; means to change the direction of rotation of said rotatable means when said transducer means completes movement in said one direction and is ready for movement in said another direction and vice versa; and means to step one of said transducer means and the medium relative to the other in a direction at an angle to the scanning directions at either end of movement of said transducer means in the scanning directions.
Claim 3
Dependent Claim
83 words
The apparatus according to claim 1 including: motive means; a shaft connected to said motive means and rotated in only one direction; first means to connect said shaft to said rotatable means to rotate said rotatable means in one direction; second means to connect said shaft to said rotatable means to rotate said rotatable means in the opposite direction; and said changing means rendering only one of said first and second means effective and the other of said first and second means ineffective.
Claim 4
Dependent Claim
34 words
The apparatus according to claim 1 in which: said linear moving means is a band having apertures therein; and said rotatable means has means cooperating with said apertures to provide positive driving engagement therewith.
Claim 5
Dependent Claim
34 words
The apparatus according to claim 2 in which: said linear moving means is a band having apertures therein; and said rotatable means has means cooperating with said apertures to provide positive driving engagement therewith.
Claim 6
Dependent Claim
91 words
The apparatus according to claim 2 in which: said changing means includes: axially movable means movable in response to the direction of rotation of said rotatable means; latching means responsive to the position of said transducer means and cooperating with said axially movable means; and pivotally mounted means engaging one of said first and second connecting means to render it effective; said axially movable means and said latching means cooperating to change the position of said pivotally mounted means when said transducer means has completed movement in one of its directions.
Claim 7
Dependent Claim
78 words
The apparatus according to claim 5 in which: said axially movable means includes: a slider; resilient means to cause said slider to be movable in response to rotation of said rotatable means; said latching means latching said slider against movement; and resilient means connecting said pivotally mounted means to said slider, said last mentioned reSilient means having its line of force changed to change the position of said pivotally mounted means when said latching means releases said slider.
Claim 8
Dependent Claim
81 words
The apparatus according to claim 5 in which: each of said first and second connecting means includes: ball retaining means; and said ball retaining means having balls mounted therein to transmit movement to said rotatable means from said shaft; and said pivotally mounted means includes means to engage said ball retaining means of one of said first and second connecting means to lock said ball retaining means against movement to render said connecting means having said locked ball retaining means effective.
Claim 9
Dependent Claim
130 words
The apparatus according to claim 5 which: each of said first and second means includes: a member rotating in response to rotation of said shaft; said ball retaining means having balls mounted therein to transmit movement to said rotatable means from said rotating member; and a spring surrounding said rotating member and said ball retaining means, said spring engaging said rotating member but being normally spaced from said ball retaining means; and said pivotally mounted means includes means to cause said spring of one of said first and second connecting means to engage against said ball retaining means to render said one connecting means effective by causing said ball retaining means to rotate with said rotating member and rotate said rotatable means in the same direction as said rotating member.
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) | 1974-05-10 | 1974-11-09 | 1975-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-10 | 1978-11-09 | 1979-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-10 | 1982-11-09 | 1983-05-11 | $7700.00 | Window Closed / Lapsed |