US3915447A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Horizontal platen belt transport
Assignee: Xerox Corp
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Filing: 1974-11-25
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Granted: 1975-10-28
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Expires: 1994-11-25
Abstract
Abstract Sheet handling apparatus including a movable endless belt having a plurality of flexible tabs formed thereon adapted for deskewing and registering the lead edge of a sheet presented thereto, the tabs thereafter being deformed into contact with the lead edge of the sheet to grip the sheet for subsequent conveyance thereof.
Inventors
- 👤 Bartholomew J Perno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:56
CPC Classifications
B; B65; B65H; B65H29/00; B65H29/02; B65H29/04; B65H29/045; B65H29/048; B65H29/16; B65H2404/00; B65H2404/20; B65H2404/23; B65H2404/231; B65H2404/232
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
168 words
A sheet handling mechanism for deskewing, registering and transporting individual sheets of material comprising: a movable endless belt having a plurality of flexible tabs formed thereon projecting substantially normal to the belt surface, the tabs extending across the belt in a direction perpendicular to the direction of belt travel; support means having a surface disposed opposite the belt for cooperation therewith, contact of the tabs with the surface of the support means causing the tabs to deform against the surface of the belt; and sheet supply means for conveying sheet material to the belt, said sheet supply means being adapted to overdrive the sheet material against the tabs to cause the sheet to be deskewed thereagainst movement of the belt relative to the support means causing the tabs to be deformed toward the surface of the belt to positively grip the lead edge of the sheet material between the tab and the belt surface for subsequent transport of the sheet material by the belt across said support means.
Claim 2
Dependent Claim
168 words
A sheet handling mechanism for deskewing, registering and transporting individual sheets of material comprising: a movable endless belt having a plurality of flexible tabs formed thereon projecting substantially normal to the belt surface, the tabs extending across the belt in a direction perpendicular to the direction of belt travel; support means having a surface disposed opposite the belt for cooperation therewith, contact of the tabs with the surface of the support means causing the tabs to deform against the surface of the belt; and sheet supply means for conveying sheet material to the belt, said sheet supply means being adapted to overdrive the sheet material against the tabs to cause the sheet to be deskewed thereagainst movement of the belt relative to the support means causing the tabs to be deformed toward the surface of the belt to positively grip the lead edge of the sheet material between the tab and the belt surface for subsequent transport of the sheet material by the belt across said support means.
Claim 3
Dependent Claim
69 words
A sheet handling mechanism according to claim 1 wherein said support means comprises a platen for a copy machine, the sheet handling mechanism further including: drive means for driving said movable endless belt; and sensing means adapted to sense a predetermined position of said belt for inactivating said drive means to position a sheet carried by said belt at a predetermined position on said platen for copying said sheet.
Claim 4
Dependent Claim
24 words
A sheet handling mechanism according to claim 2 wherein said sensing means comprises a microswitch adapted for actuation by movement of said tabs thereagainst.
Claim 5
Dependent Claim
76 words
A sheet handling mechanism according to claim 2 further including a sheet receiving tray, said tray being located downstream from said platen, movement of said belt to move said tabs gripping the sheets out of contact with said platen allowing said tabs to assume a normal orientation relative to the belt surface to release the lead edge of the sheet subsequent movement of said belt carrying the sheet off said platen into said sheet receiving tray.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-10-27 | 1979-04-28 | 1979-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-27 | 1983-04-28 | 1983-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-27 | 1987-04-28 | 1987-10-28 | $7700.00 | Window Closed / Lapsed |