Patent US2256035A successfully refreshed from Google Patents.
US3929327A
Expired / Lapsed
US
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Document transport and registration apparatus
Assignee: AB Dick Co
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Filing: 1974-04-01
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Granted: 1975-12-30
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Expires: 1994-04-01
Abstract
Abstract A document transport and registration apparatus is provided comprising an idler roller and a frusto-conical drive roller which cooperate in pinching engagement to advance a document along a predetermined path. The drive roller is of flexible, resilient material which is deformed radially when advancing the document, whereby a misaligned document is automatically brought into alignment and registration with a guide edge.
Inventors
- 👤 Lorin P Olson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:04
CPC Classifications
B; B65; B65H; B65H9/00; B65H9/16; B65H9/166; B65H2301/00; B65H2301/30; B65H2301/36; B65H2404/00; B65H2404/10; B65H2404/13; B65H2404/131; B65H2404/1315; B65H2404/14; B65H2404/143; B65H2701/00; B65H2701/10; B65H2701/13; B65H2701/131; B65H2701/1313; Y; Y10; Y10S; Y10S271/00; Y10S271/90
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
210 words
An apparatus for transporting documents in a predetermined direction of travel, said apparatus comprising: a support member defining a generally planar document support surface extending in the direction of document travel, said support member having an aperture therein, an edge member mounted to one side of said support surface and defining a document registration edge generally parallel to the direction of travel, a pair of rollers mounted adjacent said surface on opposite sides of said aperture, and means for rotatably driving at least one of said rollers to effect movement of a document disposed between and drivingly engaged by said rollers, one of said pair of rollers being yieldable, flexible, resilient, hollow construction with an outer configuration of decreasing radius along at least a portion of said axis of rotation when undeformed and open to the hollow at the lArger radius end and having a continuous surface peripheral portion being flattened in the area engaging the document and subsequently flexing radially outward upon disengagement from the document, said area engaging the document being asymmetric with respect to said direction of travel whereby said one roller creates a couple influencing the trailing edge of the document toward said registration edge, said larger radius open end generally facing toward said registration edge.
Claim 2
Independent Claim
210 words
An apparatus for transporting documents in a predetermined direction of travel, said apparatus comprising: a support member defining a generally planar document support surface extending in the direction of document travel, said support member having an aperture therein, an edge member mounted to one side of said support surface and defining a document registration edge generally parallel to the direction of travel, a pair of rollers mounted adjacent said surface on opposite sides of said aperture, and means for rotatably driving at least one of said rollers to effect movement of a document disposed between and drivingly engaged by said rollers, one of said pair of rollers being yieldable, flexible, resilient, hollow construction with an outer configuration of decreasing radius along at least a portion of said axis of rotation when undeformed and open to the hollow at the lArger radius end and having a continuous surface peripheral portion being flattened in the area engaging the document and subsequently flexing radially outward upon disengagement from the document, said area engaging the document being asymmetric with respect to said direction of travel whereby said one roller creates a couple influencing the trailing edge of the document toward said registration edge, said larger radius open end generally facing toward said registration edge.
Claim 3
Dependent Claim
24 words
The apparatus set forth in claim 1 wherein said one roller is located on the side of said support member opposite said support surface.
Claim 4
Dependent Claim
18 words
The apparatus set forth in claim 1 wherein said one roller is drivingly connected to said driving means.
Claim 5
Dependent Claim
25 words
The apparatus set forth in claim 1 wherein said hollow is of decreasing radius configuration generally concentric with the outer configuration of said one roller.
Claim 6
Independent Claim
189 words
An apparatus for transporting documents in a predetermined direction of travel, said apparatus comprising: a document support surface extending in the direction of travel, an edge member mounted on one side of said support surface and defining a document registration edge generally parallel to the direction of travel, a drive shaft mounted generally parallel to said support surface, a single drive roller mounted to said drive shaft adjacent said support surface and being of generally hollow, tapered decreasing radius configuration open at the larger radius end, drive means for rotating said shaft about the axis of said roller, said drive roller being of flexible, resilient construction having a continuous peripheral drive surface adjacent said open end, a portion of said peripheral drive surface engaging a presented document in an area, said portion being deformed radially inward while in engagement with said document, said area being asymmetric with respect to said direction of travel whereby said roller creates a couple influencing the trailing end of the document toward said registration edge during transport, said drive roller being of generally frusto-conical configuration with said open end facing toward said registration edge.
Claim 7
Independent Claim
189 words
An apparatus for transporting documents in a predetermined direction of travel, said apparatus comprising: a document support surface extending in the direction of travel, an edge member mounted on one side of said support surface and defining a document registration edge generally parallel to the direction of travel, a drive shaft mounted generally parallel to said support surface, a single drive roller mounted to said drive shaft adjacent said support surface and being of generally hollow, tapered decreasing radius configuration open at the larger radius end, drive means for rotating said shaft about the axis of said roller, said drive roller being of flexible, resilient construction having a continuous peripheral drive surface adjacent said open end, a portion of said peripheral drive surface engaging a presented document in an area, said portion being deformed radially inward while in engagement with said document, said area being asymmetric with respect to said direction of travel whereby said roller creates a couple influencing the trailing end of the document toward said registration edge during transport, said drive roller being of generally frusto-conical configuration with said open end facing toward said registration edge.
Claim 8
Dependent Claim
40 words
The apparatus set forth in claim 5 wherein said drive means alternately rotates said drive roller in forward and reverse directions to transport the document in forward and reverse directions respectively while maintaining such in registration with said edge member.
Claim 9
Dependent Claim
39 words
The apparatus set forth in claim 5 further including means mounted adjacent said support surface and opposite said drive roller for engaging the document on a side opposite said one side and holding the document against said drive roller.
Claim 10
Dependent Claim
26 words
The apparatus set forth in claim 7 wherein said means for maintaining the document in engagement with the drive roller comprises a freely rotatable idler roller.
Claim 11
Dependent Claim
21 words
The apparatus set forth in claim 8 wherein said idler roller is of relatively rigid construction compared to said drive roller.
Claim 12
Dependent Claim
49 words
The apparatus set forth in claim 5 wherein said drive roller is distorted during document transport with said portion being asymmetric with respect to said axis whereby said roller creates a linear force component influencing said document toward said registration edge during transport in both forward and reverse directions.
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) | 1978-12-29 | 1979-06-30 | 1979-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-29 | 1983-06-30 | 1983-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-29 | 1987-06-30 | 1987-12-30 | $7700.00 | Window Closed / Lapsed |