US4805892A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cross-track registration device for sheet transport system
Assignee: Eastman Kodak Co
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Filing: 1988-04-04
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Granted: 1989-02-21
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Expires: 2008-04-04
Abstract
Abstract A loop is formed between upstream and downstream pairs of rollers by driving the downstream pair slower than the upstream pair and/or by a direction changing guide. The downstream pair of rollers is axially movable to bring an in-track edge of a sheet to a predetermined sensed position to cross-track register the sheet. The loop permits cross-track movement of the sheet despite engagement of the sheet with the upstream pair of rollers.
Inventors
- 👤 Lee M. Calhoun
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:51
CPC Classifications
B; B65; B65H; B65H9/00; B65H9/10; B65H9/103; B65H5/00; B65H5/06; B65H5/062; B65H9/002; B65H2403/00; B65H2403/50; B65H2403/51; B65H2403/512; B65H2404/00; B65H2404/10; B65H2404/14; B65H2404/142; B65H2404/1424; B65H2404/60; B65H2404/61; B65H2404/611; B65H2404/6111
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
127 words
A cross-track registration device for a sheet transport system, comprising: upstream and downstream pairs of rollers for driving a sheet along a path, the in-path distance between the pairs of rollers being less than the in-path dimension of a sheet to be transported, means for continuously driving both pairs of rollers and for driving the downstream pair at a peripheral speed slower than the peripheral speed of the upstream pair to form a loop in a sheet being transported, means for sensing the cross-track position of an in-track edge of a sheet being driven by the downstream pair of rollers, and means for axially moving the downstream pair of rollers until an in-track edge of a sheet is sensed, thereby registering the sheet in the cross-track direction.
Claim 2
Dependent Claim
127 words
A cross-track registration device for a sheet transport system, comprising: upstream and downstream pairs of rollers for driving a sheet along a path, the in-path distance between the pairs of rollers being less than the in-path dimension of a sheet to be transported, means for continuously driving both pairs of rollers and for driving the downstream pair at a peripheral speed slower than the peripheral speed of the upstream pair to form a loop in a sheet being transported, means for sensing the cross-track position of an in-track edge of a sheet being driven by the downstream pair of rollers, and means for axially moving the downstream pair of rollers until an in-track edge of a sheet is sensed, thereby registering the sheet in the cross-track direction.
Claim 3
Dependent Claim
39 words
A device according to claim 1 further including guide means between said pairs of rollers to direct a sheet from the upstream pair of rollers to the downstream pair of rollers and to control the formation of said loop.
Claim 4
Dependent Claim
67 words
A device according to claim 2 wherein said guide means is shaped to direct said sheet through a curved path to said downstream pair of rollers, which downstream pair is located and orientated to receive the leading edge of a sheet moving in a direction different from the direction the trailing portion of the sheet is moving as said trailing portion leaves the upstream pair of rollers.
Claim 5
Dependent Claim
23 words
A device according to claim 3 wherein said guide means provides approximately a right angle turn in the path of a moving sheet.
Claim 6
Dependent Claim
108 words
A cross-track registration device for a sheet transport system, comprising: upstream and downstream means for driving a sheet along a path, means for guiding the leading portion of a sheet being driven by the first driving means through a curved path to the downstream driving means, said guide means being positioned and shaped to form a loop in said sheet, cross-track sensing means for sensing an in-track edge of a sheet being driven by the downstream driving means, means for axially moving the downstream driving means until an in-track edge of a sheet is sensed by the cross-track sensing means, thereby registering said sheet in the cross-track direction.
Claim 7
Dependent Claim
108 words
A cross-track registration device for a sheet transport system, comprising: upstream and downstream means for driving a sheet along a path, means for guiding the leading portion of a sheet being driven by the first driving means through a curved path to the downstream driving means, said guide means being positioned and shaped to form a loop in said sheet, cross-track sensing means for sensing an in-track edge of a sheet being driven by the downstream driving means, means for axially moving the downstream driving means until an in-track edge of a sheet is sensed by the cross-track sensing means, thereby registering said sheet in the cross-track direction.
Claim 8
Dependent Claim
22 words
A device according to claim 5 wherein guide means provides approximately a right angle turn in the path of a moving sheet.
Claim 9
Dependent Claim
101 words
A cross-track registration device for a sheet transport system, comprising: upstream and downstream means for driving a sheet to transport the sheet along a path; means for continuously driving the downstream means slower than the upstream means to form a loop in a sheet being transported, means for moving the downstream means in a cross-track direction to move the sheet being transported in a cross-track direction, means for sensing the cross-track position of a sheet being moved in a cross-track direction, and means for stopping said cross-track movement when said sheet reaches a predetermined cross-track position to cross-track register the sheet.
Claim 10
Dependent Claim
101 words
A cross-track registration device for a sheet transport system, comprising: upstream and downstream means for driving a sheet to transport the sheet along a path; means for continuously driving the downstream means slower than the upstream means to form a loop in a sheet being transported, means for moving the downstream means in a cross-track direction to move the sheet being transported in a cross-track direction, means for sensing the cross-track position of a sheet being moved in a cross-track direction, and means for stopping said cross-track movement when said sheet reaches a predetermined cross-track position to cross-track register the sheet.
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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) | 1992-02-21 | 1992-08-22 | 1993-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-02-21 | 1996-08-22 | 1997-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-02-21 | 2000-08-22 | 2001-02-21 | $7700.00 | Window Closed / Lapsed |