US3941373A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Floating gate sheet separator
Assignee: Xerox Corp
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Filing: 1974-11-25
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Granted: 1976-03-02
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Expires: 1994-11-25
Abstract
Abstract A sheet feeding device adapted to separate a single sheet from a stack of sheets and forward the separated sheet away from the stack for subsequent processing. The apparatus includes a feed belt disposed adjacent one edge of the stack for contact with the lead edge of the top sheet in the stack to separate the sheet therefrom. Gate means biased into engagement with the feed belt provide a forward stop for the sheet stack, actuation of the feed belt causing the top sheet in the stack to be forced between the low friction upper surface of the gate means and the feed belt to move the top sheet off from the stack, the biased gate means preventing passage of multiple sheets by the feed means.
Inventors
- 👤 Klaus K. Stange
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:48
CPC Classifications
B; B65; B65H; B65H3/00; B65H3/02; B65H3/04; B65H3/047; B65H3/46; B65H3/56; B65H5/00; B65H5/06; B65H5/062; B65H2301/00; B65H2301/30; B65H2301/33; B65H2301/331
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
142 words
An apparatus for feeding and separating individual sheets from a stack of sheets including: a first feed roll disposed adjacent the forward edge of the stack; a second roll disposed adjacent said first feed roll; a feed belt mounted on said first and second rolls for movement therearound; a narrow, low friction feed gate disposed adjacent one corner of the front edge of the stack adapted to locate the front edges of the sheet in the stack; and, biasing means adapted to bias said feed gate into engagement with said feed belt, movement of said feed belt causing the sheet in the stack in contact therewith to be forced between said feed gate and said feed belt for movement of a single sheet off from the stack, said feed gate preventing passage of multiple sheets between said gate and said feed belt.
Claim 2
Independent Claim
142 words
An apparatus for feeding and separating individual sheets from a stack of sheets including: a first feed roll disposed adjacent the forward edge of the stack; a second roll disposed adjacent said first feed roll; a feed belt mounted on said first and second rolls for movement therearound; a narrow, low friction feed gate disposed adjacent one corner of the front edge of the stack adapted to locate the front edges of the sheet in the stack; and, biasing means adapted to bias said feed gate into engagement with said feed belt, movement of said feed belt causing the sheet in the stack in contact therewith to be forced between said feed gate and said feed belt for movement of a single sheet off from the stack, said feed gate preventing passage of multiple sheets between said gate and said feed belt.
Claim 3
Dependent Claim
37 words
An apparatus for feeding and separating sheets according to claim 1 wherein said feed gate is pivotally mounted adjacent said feed belt, said biasing means being adapted to pivot said gate into engagement with said feed belt.
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) | 1979-03-02 | 1979-09-01 | 1980-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-02 | 1983-09-01 | 1984-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-02 | 1987-09-01 | 1988-03-02 | $7700.00 | Window Closed / Lapsed |