US3909257A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manifold imaging process with spool electrode
Assignee: Xerox Corp
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Filing: 1971-06-25
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Granted: 1975-09-30
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Expires: 1991-06-25
Abstract
Abstract A manifold set of donor layer, imaging material layer and receiver layer is formed between a backing electrode and a tape electrode. The tape electrode is initially wound on a spool and is laid out over the various layers of the manifold set by unwinding it from the spool. The imaging material is exposed to electromagnetic radiation and subjected to electric field. The donor and receiver layers are separated when the tape electrode is wound back onto the spool yielding complementary images formed from the imaging material on the donor and receiver layers.
Inventors
- 👤 James R Davidson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:18
CPC Classifications
G; G03; G03G; G03G17/00; G03G17/08
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
11 words
The process of claim 1 wherein said tape electrode is elastic.
Claim 2
Dependent Claim
20 words
The process of claim 1 wherein said imaging layer comprises an electrically photosensitive material is dispersed in an insulating binder.
Claim 3
Dependent Claim
14 words
The process of claim 3 wherein said electrically photosensitive material is an organic material.
Claim 4
Dependent Claim
39 words
The process of claim 1 wherein said receiver is fed by a pair of pinch rollers and subsequent to step (d) Said rollers are reversed whereby said sandwich is separated by a vertical force component on said receiver layer.
Claim 5
Dependent Claim
23 words
The process of claim 5 further including the step of cutting said receiver layer in front of said rollers after said sandwich separation.
Claim 6
Dependent Claim
44 words
The process of claim 3 further including the step of softening said imaging layer so as to render said layer structurally fracturable in response to the combined effects of an applied electric field and exposure to electromagnetic radiation to which said layer is sensitive.
Claim 7
Dependent Claim
18 words
The process of claim 7 wherein at least one of said donor and receiver layers are electrically conductive.
Claim 8
Dependent Claim
15 words
The process of claim 3 wherein said imaging layer is exposed through said donor layer.
Claim 9
Dependent Claim
22 words
The process of claim 1 wherein said tape electrode has a layer of insulating material coated on its surface contacting said sandwich.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
US3658519A
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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) | 1978-09-29 | 1979-03-31 | 1979-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-29 | 1983-03-31 | 1983-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-29 | 1987-03-31 | 1987-09-30 | $7700.00 | Window Closed / Lapsed |