US3874651A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improved registration edge for automatic document handler
Assignee: Xerox Corp
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Filing: 1974-04-26
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Granted: 1975-04-01
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Expires: 1994-04-26
Abstract
Abstract An automatic document handler for supplying and removing documents from the platen of a processing apparatus such as a copying machine. The document handler includes a register against which the document trailing edge is abutted through reversal of a platen transport belt for positioning the document on the platen. To prevent the document from overriding the registration edge as the platen belt is reversed to drive the document against the registration edge, an angled registration edge is provided to strip the document from the belt and provide a self-sharpening edge through the interaction of the belt with the edge.
Inventors
- 👤 Jeffery L Sisson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:52
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/32; G03B27/52; G03B27/62; G03B27/6207; G03B27/625; G03B27/6264
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
232 words
In a document handling apparatus for moving documents into copying position on the platen of a document copying machine, the combination of: a flexible document transport belt; a pair of interior support rolls about which said belt is operatively disposed, said support rolls being spaced apart to support said transport belt opposite to and extending across at least a portion of said platen; and, a register having an edge portion thereon movable into and out of the document path, said register being movable into the document path after a document is removed from the platen, movement of the document over said register edge onto the platen and subsequent reversal of the transport belt causing the document to be forced against the edge portion of said register and properly located on the platen, movement of the register out of the document path and operation of the transport belt in the reverse direction causing the document to be moved off of the platen, the edge portion of said register forming an included angle in the range of 79*-84* with the platen to provide a knife-like portion along the top of the register edge for stripping documents from said belt when said belt is reversed for forcing the document against said register, movement of said belt against said register causing said knife-like portion to be constantly sharpened thereby during operation of the document handling apparatus.
Claim 2
Dependent Claim
232 words
In a document handling apparatus for moving documents into copying position on the platen of a document copying machine, the combination of: a flexible document transport belt; a pair of interior support rolls about which said belt is operatively disposed, said support rolls being spaced apart to support said transport belt opposite to and extending across at least a portion of said platen; and, a register having an edge portion thereon movable into and out of the document path, said register being movable into the document path after a document is removed from the platen, movement of the document over said register edge onto the platen and subsequent reversal of the transport belt causing the document to be forced against the edge portion of said register and properly located on the platen, movement of the register out of the document path and operation of the transport belt in the reverse direction causing the document to be moved off of the platen, the edge portion of said register forming an included angle in the range of 79*-84* with the platen to provide a knife-like portion along the top of the register edge for stripping documents from said belt when said belt is reversed for forcing the document against said register, movement of said belt against said register causing said knife-like portion to be constantly sharpened thereby during operation of the document handling apparatus.
Claim 3
Dependent Claim
123 words
In a document handling apparatus for moving documents into copying position on the platen of a document copying machine, the combination of: register means associated with the platen for aligning documents placed on the platen against an edge of said register means, said edge being formed to provide an included angle with the platen in the range of 79*-84* to provide a knife-like portion on said edge; and, document feed means adapted for contact with said register means for moving documents therebetween onto the platen and against said register means, the top portion of said register edge being constantly sharpened by relative movement between said document feed means and said register means to prevent rounding-off of the top portion of the register edge.
Claim 4
Dependent Claim
123 words
In a document handling apparatus for moving documents into copying position on the platen of a document copying machine, the combination of: register means associated with the platen for aligning documents placed on the platen against an edge of said register means, said edge being formed to provide an included angle with the platen in the range of 79*-84* to provide a knife-like portion on said edge; and, document feed means adapted for contact with said register means for moving documents therebetween onto the platen and against said register means, the top portion of said register edge being constantly sharpened by relative movement between said document feed means and said register means to prevent rounding-off of the top portion of the register edge.
Claim 5
Dependent Claim
97 words
The apparatus of claim 2 wherein said document feed means is adapted for movement in a first direction for feeding documents onto the platen of the copy machine, reversal of said document feed means causing the document to be forced against said register edge and properly located on the platen, said register means being movable into and out of the path of movement of the documents, movement of the registration means out of the document path and operation of the document feed means in the reverse direction causing the document to be fed off of the platen.
References Cited (Backward Citations)
US3790158A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-03-31 | 1978-09-30 | 1979-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-31 | 1982-09-30 | 1983-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-31 | 1986-09-30 | 1987-04-01 | $7700.00 | Window Closed / Lapsed |