US3719266A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheet stacking apparatus
Assignee: Xerox Corp
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Filing: 1970-09-09
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Granted: 1973-03-06
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Expires: 1990-09-09
Abstract
Abstract Apparatus for stacking copies from documents that are copied in repeated cycles. A transport delivers copies to a gate which collects them in a stack. A jogging device positioned at the entrance of the gate ensures proper corner registration of the copies in the tray. After the stack is assembled in the gate, the gate is pivoted out of the sheet path and pinch rolls associated with the gate serve to grip the stack and eject it into a receiving tray located below the gate. Cam actuated devices serve to reposition the gate and pinch rolls at the proper interval.
Inventors
- 👤 H Korn
- 👤 S Greenfield
- 👤 D Stemmle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 01:04
CPC Classifications
B; B65; B65H; B65H31/00; B65H31/30; B65H31/3027; B65H31/04; B65H31/06; B65H31/3009; B65H31/34; G; G03; G03G; G03G15/00; G03G15/22; G03G15/23; G03G15/231; G03G15/232; G03G15/234; G03G15/65; G03G15/6538; G03G15/6547; B65H2301/00; B65H2301/40; B65H2301/42; B65H2301/421; B65H2301/4214; B65H2301/42146; B65H2301/4219; B65H2301/422; B65H2301/4226; B65H2301/42261; G03G2215/00; G03G2215/00362; G03G2215/00886; G03G2215/0089
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
175 words
Sheet paper stacking apparatus comprising transport means for advancing paper sheet material along a predetermined path, rotatable paddle means positioned in the sheet path to contact the sheet material surface to impart a sideways movement to the sheet material, gate means in the sheet path to arrest moving sheet material in a stack in corner registration therewith, said gate means being pivotable from a first position in the sheet path to a second position away from the sheet path, stack eject means including pinching rollers associated with said gate means operative to engage the stack in a nip and eject it upon movement of said gate means away from the sheet path, a receiving tray positioned in the sheet path to receive the stack ejected by said stack eject means, and control means for moving said gate means from a position in the sheet path to a position out of the sheet path and then causing said stack to be ejected into the receiving tray after the gate means is moved to its second position.
Claim 2
Dependent Claim
175 words
Sheet paper stacking apparatus comprising transport means for advancing paper sheet material along a predetermined path, rotatable paddle means positioned in the sheet path to contact the sheet material surface to impart a sideways movement to the sheet material, gate means in the sheet path to arrest moving sheet material in a stack in corner registration therewith, said gate means being pivotable from a first position in the sheet path to a second position away from the sheet path, stack eject means including pinching rollers associated with said gate means operative to engage the stack in a nip and eject it upon movement of said gate means away from the sheet path, a receiving tray positioned in the sheet path to receive the stack ejected by said stack eject means, and control means for moving said gate means from a position in the sheet path to a position out of the sheet path and then causing said stack to be ejected into the receiving tray after the gate means is moved to its second position.
Claim 3
Dependent Claim
175 words
Sheet paper stacking apparatus comprising transport means for advancing paper sheet material along a predetermined path, rotatable paddle means positioned in the sheet path to contact the sheet material surface to impart a sideways movement to the sheet material, gate means in the sheet path to arrest moving sheet material in a stack in corner registration therewith, said gate means being pivotable from a first position in the sheet path to a second position away from the sheet path, stack eject means including pinching rollers associated with said gate means operative to engage the stack in a nip and eject it upon movement of said gate means away from the sheet path, a receiving tray positioned in the sheet path to receive the stack ejected by said stack eject means, and control means for moving said gate means from a position in the sheet path to a position out of the sheet path and then causing said stack to be ejected into the receiving tray after the gate means is moved to its second position.
Claim 4
Dependent Claim
175 words
Sheet paper stacking apparatus comprising transport means for advancing paper sheet material along a predetermined path, rotatable paddle means positioned in the sheet path to contact the sheet material surface to impart a sideways movement to the sheet material, gate means in the sheet path to arrest moving sheet material in a stack in corner registration therewith, said gate means being pivotable from a first position in the sheet path to a second position away from the sheet path, stack eject means including pinching rollers associated with said gate means operative to engage the stack in a nip and eject it upon movement of said gate means away from the sheet path, a receiving tray positioned in the sheet path to receive the stack ejected by said stack eject means, and control means for moving said gate means from a position in the sheet path to a position out of the sheet path and then causing said stack to be ejected into the receiving tray after the gate means is moved to its second position.
Claim 5
Dependent Claim
37 words
Apparatus according to claim 1 wherein said paddle means comprises a plurality of blade members mounted on a hub rotated on shaft on an axis inclined at an acute angle to the plane of the sheet path.
Claim 6
Dependent Claim
51 words
Apparatus according to claim 1 wherein said control means includes circuit means for supplying signals operative to maintain said gate means away from the sheet path and said stack eject means in contact with the sheet path to advance sheet material directly from said transport means into the receiving tray continuously.
Claim 7
Dependent Claim
207 words
Sheet paper stacking apparatus comprising transport means for advancing paper sheet material along a predetermined path, rotatable paddle means positioned in the sheet path to contact the sheet material surface to impart a sideways movement to the sheet material, gate means in the sheet path to arrest moving sheet material in a stack in corner registration therewith, said gate means being pivotable from a first position in the sheet path to a second position away from the sheet path, stack eject means associated with said gate means operative to engage the stack in a nip and eject it upon movement of said gate means away from the sheet path, a receiving tray positioned in the sheet path to receive the stack ejected by said stack eject means, and control means for moving said gate means from a position in the sheet path to a position out of the sheet path and then causing said stack to be ejected into the receiving tray after the gate means is moved to its second position, said control means includes a continuously moving drive mechanism engaging a cam member operative to move said gate means and actuate said stack eject means through a clutch mechanism actuatable in response to electrical signals.
Claim 8
Dependent Claim
207 words
Sheet paper stacking apparatus comprising transport means for advancing paper sheet material along a predetermined path, rotatable paddle means positioned in the sheet path to contact the sheet material surface to impart a sideways movement to the sheet material, gate means in the sheet path to arrest moving sheet material in a stack in corner registration therewith, said gate means being pivotable from a first position in the sheet path to a second position away from the sheet path, stack eject means associated with said gate means operative to engage the stack in a nip and eject it upon movement of said gate means away from the sheet path, a receiving tray positioned in the sheet path to receive the stack ejected by said stack eject means, and control means for moving said gate means from a position in the sheet path to a position out of the sheet path and then causing said stack to be ejected into the receiving tray after the gate means is moved to its second position, said control means includes a continuously moving drive mechanism engaging a cam member operative to move said gate means and actuate said stack eject means through a clutch mechanism actuatable in response to electrical signals.
References Cited (Backward Citations)
US3231100A
Cited
US3382966A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-03-05 | 1976-09-04 | 1977-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-05 | 1980-09-04 | 1981-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-05 | 1984-09-04 | 1985-03-06 | $7700.00 | Window Closed / Lapsed |