Patent US4309103A successfully refreshed from Google Patents.
Patent US3793016A successfully refreshed from Google Patents.
US3793016A
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Electrophotographic sheet binding process
Assignee: Xerox Corp
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Filing: 1972-10-19
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Granted: 1974-02-19
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Expires: 1992-10-19
Abstract
Abstract Sheet binding where the printing medium itself is the sheet binder. In a xerographic process, high density areas of xerographic toner are provided at desired binding areas. Sufficiently high density toner areas are provided by inserting a finely apertured optical mask adapted to provide edge development effects to maximize overall toner density over the selected binding area, yet which is compatible with solid area coverage machines. These toner binding areas may then be subsequently refused between adjacent overlaying sheets to provide bound stacks, without requiring any additional binding material.
Inventors
- 👤 R Eichorn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:39
CPC Classifications
B; B42; B42C; B42C9/00; B42C9/0093; G; G03; G03G; G03G2215/00; G03G2215/00362; G03G2215/00789; G03G2215/00822; G03G2215/00835; Y; Y10; Y10S; Y10S412/00; Y10S412/90
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
28 words
The process of claim 1 wherein said light and dark images are consistently spaced apart by a distance corresponding to the effective edge development distance of said photoreceptor.
Claim 2
Dependent Claim
37 words
The process of claim 2 wherein said light and dark images are a band of closely spaced lines and said binding area is the image of said band extended along at least one edge of said sheets.
Claim 3
Dependent Claim
29 words
The process of claim 1 wherein said light and dark images are applied by inserting a finely multiply apertured optical mask between said indicia bearing original and said photoreceptor.
Claim 4
Dependent Claim
18 words
The process of claim 1 wherein said mask is inserted by inserting a transparent overlay bearing said mask.
Claim 5
Dependent Claim
43 words
The process of claim 4 wherein said optical mask is inserted by inserting said original into a transparent folder bearing said optical mask and positioning said original in said folder so that no indicia or said original is masked by said optical mask.
Claim 6
Dependent Claim
38 words
The process of claim 3 wherein said lines are applied spaced apart by approximately 0.05 millimeters and are between approximately 0.05 to 3.2 millimeters in width, and wherein said band is greater than approximately 6.35 millimeters in width.
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) | 1977-02-18 | 1977-08-20 | 1978-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-18 | 1981-08-20 | 1982-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-18 | 1985-08-20 | 1986-02-19 | $7700.00 | Window Closed / Lapsed |