US3713735A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Document transport mechanism
Assignee: Singer Co
•
Filing: 1971-09-10
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Granted: 1973-01-30
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Expires: 1991-09-10
Abstract
Abstract A document handling device comprising a document feed magazine removably supported by a pair of guide tracks in a main frame. The document feed magazine has a rotatable rear roller, a feed roller and associated pressure rollers forward of the rear roller, a diverting member adjustable between a document eject and a document re-enter position forward of the feed roller, and a simple latch for releasably locking the magazine in the guide tracks. Entry feed is provided by the magazine feed roller and pressure rollers mounted in the main frame; exit feed is provided by the feed roller and the associated magazine pressure rollers. Document turnaround is provided by the rear roller in cooperation with a document deflector, which may comprise a movable photoconductive web in an electrostatic copier, located in the main frame adjacent the rear roller.
Inventors
- 👤 T Wilber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:43
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/60; G03G15/602
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
107 words
A document handling device comprising: a housing; a rotatable roller mounted at the rear of said housing; a feed roller rotatably mounted forward of said rear of said housing; a pressure roller rotatably mounted adjacent said feed roller in surface contact with portions of said feed roller surface; a document diverting member adjustable between a first position permitting document feed in a direction forward of said feed roller and a second position permitting document feed in a direction rearward of said feed roller; and a latching means mounted on the forward portion of said housing for releasably locking said document handling device to an associated main frame.
Claim 2
Dependent Claim
107 words
A document handling device comprising: a housing; a rotatable roller mounted at the rear of said housing; a feed roller rotatably mounted forward of said rear of said housing; a pressure roller rotatably mounted adjacent said feed roller in surface contact with portions of said feed roller surface; a document diverting member adjustable between a first position permitting document feed in a direction forward of said feed roller and a second position permitting document feed in a direction rearward of said feed roller; and a latching means mounted on the forward portion of said housing for releasably locking said document handling device to an associated main frame.
Claim 3
Dependent Claim
107 words
A document handling device comprising: a housing; a rotatable roller mounted at the rear of said housing; a feed roller rotatably mounted forward of said rear of said housing; a pressure roller rotatably mounted adjacent said feed roller in surface contact with portions of said feed roller surface; a document diverting member adjustable between a first position permitting document feed in a direction forward of said feed roller and a second position permitting document feed in a direction rearward of said feed roller; and a latching means mounted on the forward portion of said housing for releasably locking said document handling device to an associated main frame.
Claim 4
Dependent Claim
107 words
A document handling device comprising: a housing; a rotatable roller mounted at the rear of said housing; a feed roller rotatably mounted forward of said rear of said housing; a pressure roller rotatably mounted adjacent said feed roller in surface contact with portions of said feed roller surface; a document diverting member adjustable between a first position permitting document feed in a direction forward of said feed roller and a second position permitting document feed in a direction rearward of said feed roller; and a latching means mounted on the forward portion of said housing for releasably locking said document handling device to an associated main frame.
Claim 5
Dependent Claim
44 words
The apparatus of claim 1 further including a pair of stub shafts transversely fixed at the rear of said housing coaxially with respect to said rotatable roller, and wherein said rotatable roller is carried by the inner end portion of each of said shafts.
Claim 6
Dependent Claim
52 words
The apparatus of claim 1 wherein said feed roller comprises a cylindrical member having a first surface portion with a first outer diameter and flanking surface portions with a second outer diameter smaller than said first diameter, and wherein said pressure roller is mounted in surface contact with said first surface portion.
Claim 7
Dependent Claim
48 words
The apparatus of claim 1 wherein said feed roller comprises a cylindrical member having a plurality of first surface portions each of a first outer diameter and each separated by a plurality of second surface portions each of a second outer diameter smaller than said first outer diameter.
Claim 8
Dependent Claim
30 words
The apparatus of claim 4 further including a plurality of pressure rollers each mounted adjacent said feed roller in surface contact with a different one of said first surface portions.
Claim 9
Dependent Claim
81 words
The apparatus of claim 4 wherein said diverting member comprises a rockable support member disposed transversely of said housing forward of said feed roller, and a flap having a first set of arcuate tabs extending in a generally rearward direction, the end portions of said tabs being positioned in the interstices between said plurality of first surface portions when said document diverting member is in said first position, and a second set of arcuate tabs extending in a generally downward direction.
Claim 10
Dependent Claim
57 words
The apparatus of claim 1 wherein said diverting member comprises a rockable support member disposed transversely of said housing forward of said feed roller, and a flap having a first arcuate portion extending in a generally rearward direction when said member is in said first position and a second arcuate portion extending in a generally downward direction.
Claim 11
Dependent Claim
26 words
The apparatus of claim 1 wherein said latching means comprises a retractable pin normally extending transversely outwardly of said housing and means for retracting said pin.
Claim 12
Dependent Claim
16 words
The apparatus of claim 8 wherein said means for retracting said pin comprises a flexible cable.
Claim 13
Independent Claim
264 words
A device for conveying a document along an entry path and an exit path comprising: a main frame having a pair of substantially parallel guide tracks, a lower guide plate and an upper guide plate; a removable document feed magazine mounted in said main frame comprising: a housing having an upper surface and a lower surface; guide means extending from said housing for sliding engagement with said guide tracks; a rotatable roller mounted at the rear of of said housing; a feed roller rotatably mounted forward of said rear of said housing; at least one pressure roller rotatably mounted adjacent said feed roller in surface contact with a portion of said feed roller surface; a document diverting member adjustable between a first position for ejecting said document from said device and a second position for guiding said document toward said entry path; and a latching means mounted forwardly of said feed roller for releasably locking said document feed magazine to said main frame; at least one pressure roller rotatably mounted in said main frame substantially transversely of said guide tracks in surface contact with a portion of said feed roller surface; a document deflector mounted rearwardly of said rotatable roller; and drive means mounted on said main frame for rotating said feed roller; said lower housing surface and said lower main frame guide plate forming said entry path, said upper housing surface and said upper main frame guide plate forming said exit path, and said document deflector and said rotatable roller comprising a turnaround station when said magazine is mounted in said main frame.
Claim 14
Independent Claim
264 words
A device for conveying a document along an entry path and an exit path comprising: a main frame having a pair of substantially parallel guide tracks, a lower guide plate and an upper guide plate; a removable document feed magazine mounted in said main frame comprising: a housing having an upper surface and a lower surface; guide means extending from said housing for sliding engagement with said guide tracks; a rotatable roller mounted at the rear of of said housing; a feed roller rotatably mounted forward of said rear of said housing; at least one pressure roller rotatably mounted adjacent said feed roller in surface contact with a portion of said feed roller surface; a document diverting member adjustable between a first position for ejecting said document from said device and a second position for guiding said document toward said entry path; and a latching means mounted forwardly of said feed roller for releasably locking said document feed magazine to said main frame; at least one pressure roller rotatably mounted in said main frame substantially transversely of said guide tracks in surface contact with a portion of said feed roller surface; a document deflector mounted rearwardly of said rotatable roller; and drive means mounted on said main frame for rotating said feed roller; said lower housing surface and said lower main frame guide plate forming said entry path, said upper housing surface and said upper main frame guide plate forming said exit path, and said document deflector and said rotatable roller comprising a turnaround station when said magazine is mounted in said main frame.
Claim 15
Dependent Claim
59 words
The apparatus of claim 10 wherein said guide means comprises a pair of stub shafts transversely fixed at the rear of said housing coaxially with respect to said rotatable roller, said rotatable roller being carried by the inner end portion of each of said shafts, and a pair of support members transversely fixed at the front of said housing.
Claim 16
Dependent Claim
48 words
The apparatus of claim 10 wherein said feed roller comprises a cylindrical member having a plurality of first surface portions each of a first outer diameter and each separated by a plurality of second surface portions each of a second outer diameter smaller than said first outer diameter.
Claim 17
Dependent Claim
36 words
The apparatus of claim 10 wherein said latching means comprises at least one retractable pin normally extending transversely outwardly of said housing for engagement with one of said guide tracks, and means for retracting said pin.
Claim 18
Dependent Claim
16 words
The apparatus of claim 13 wherein said means for retracting said pin comprises a flexible cable.
Claim 19
Dependent Claim
57 words
The apparatus of claim 10 wherein said diverting member comprises a rockable support member disposed transversely of said housing forward of said feed roller, and a flap having a first arcuate portion extending in a generally rearward direction when said member is in said first position and a second arcuate portion extending in a generally downward direction.
Claim 20
Dependent Claim
23 words
The apparatus of claim 10 further including an entry chute mounted in said main frame for guiding said document toward said entry path.
References Cited (Backward Citations)
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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) | 1976-01-30 | 1976-07-31 | 1977-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-30 | 1980-07-31 | 1981-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-30 | 1984-07-31 | 1985-01-30 | $7700.00 | Window Closed / Lapsed |