US3754754A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Document separator for accidental bunching
Assignee: Bull HN Information Systems Italia SpA
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Filing: 1971-12-03
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Granted: 1973-08-28
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Expires: 1991-12-03
Abstract
Abstract A document handling device is provided with a feed arrangement having a pair of rollers arranged to cooperate in feeding documents of varying size and thickness singly and sequentially from a stack, without adjustment of the device.
Inventors
- 👤 J Peterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:56
CPC Classifications
B; B65; B65H; B65H3/00; B65H3/02; B65H3/06; B65H3/0669; B65H3/0661
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
135 words
In a device for feeding documents singly and sequentially from a stack, feed means comprising a first roller and second roller each having surfaces juxtaposed one with the other for imparting motion to a document placed there between, a first gear interconnected to said first roller and a second gear interconnected to said second roller, a drive shaft having one drive gear engaging said first gear and another drive gear engaging said second gear, said second roller and said second gear being mounted in a housing and said housing being pivotably mounted for rotation about the axis of said drive shaft to bring said juxtaposed surfaces into mating engagement whereby said second gear and said other drive gear are maintained in driving engagement and a fixed distance apart on centerlines during rotation of said housing.
Claim 2
Dependent Claim
135 words
In a device for feeding documents singly and sequentially from a stack, feed means comprising a first roller and second roller each having surfaces juxtaposed one with the other for imparting motion to a document placed there between, a first gear interconnected to said first roller and a second gear interconnected to said second roller, a drive shaft having one drive gear engaging said first gear and another drive gear engaging said second gear, said second roller and said second gear being mounted in a housing and said housing being pivotably mounted for rotation about the axis of said drive shaft to bring said juxtaposed surfaces into mating engagement whereby said second gear and said other drive gear are maintained in driving engagement and a fixed distance apart on centerlines during rotation of said housing.
Claim 3
Dependent Claim
19 words
The device of claim 1 which further includes torque limiting means connecting said second roller to said second gear.
Claim 4
Dependent Claim
23 words
The device of claim 2 which further includes biasing means attached to said housing for urging first and second rollers into mating engagement.
Claim 5
Dependent Claim
15 words
The device of claim 3 wherein said torque limiting means is a magnetic particle clutch.
Claim 6
Dependent Claim
28 words
The device of claim 1 which further includes means for rotAting said drive shaft, and clutch means interconnecting said drive shaft with said means for rotating said shaft.
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) | 1976-08-27 | 1977-02-26 | 1977-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-27 | 1981-02-26 | 1981-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-27 | 1985-02-26 | 1985-08-28 | $7700.00 | Window Closed / Lapsed |