US4017869A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ink recorder for the jet-ink-process
Assignee: Agfa Gevaert AG
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Filing: 1975-07-08
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Granted: 1977-04-12
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Expires: 1995-07-08
Abstract
Abstract An ink jet device for recording colored images comprises a plurality of nozzles for producing differently colored ink jets which are directed on to a common point in the plane of a recording support; a control electrode, an extraction system for removing the ink deflected and hence not used for recording and an aperture diaphragm being associated with each of the nozzles; the control electrodes, extraction systems and diaphragms being combined into a block; the control electrodes being electrically insulated with respect to each other and with respect to earth and the nozzles being at electrical earth potential.
Inventors
- 👤 Rudolf Meyer
- 👤 Klaus Hoffmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:03
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/005; B41J2/01; B41J2/21; B41J2/2107; B41J2/211; B41J2/17; B41J2/18; B41J2/185
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
132 words
An ink recorder comprising a recording support; nozzles for producing at least three differently colored ink jets which are directed on to a common point lying in the plane of the recording support; and a control electrode for each nozzle, an extraction system for the ink which is not required for recording and an apertured diaphragm associated with each nozzle, the control electrodes, extraction systems and diaphragms being combined into a block, the control electrodes being electrically insulated with respect to one another and with respect to earth and the nozzles being at electrical earth potential, each nozzle and its associated control electrode, extraction system and diaphragm being concentrically disposed about a nozzle centerline, and each nozzle centerline being disposed along the generatrix of a cone whose apex is the common point.
Claim 2
Dependent Claim
132 words
An ink recorder comprising a recording support; nozzles for producing at least three differently colored ink jets which are directed on to a common point lying in the plane of the recording support; and a control electrode for each nozzle, an extraction system for the ink which is not required for recording and an apertured diaphragm associated with each nozzle, the control electrodes, extraction systems and diaphragms being combined into a block, the control electrodes being electrically insulated with respect to one another and with respect to earth and the nozzles being at electrical earth potential, each nozzle and its associated control electrode, extraction system and diaphragm being concentrically disposed about a nozzle centerline, and each nozzle centerline being disposed along the generatrix of a cone whose apex is the common point.
Claim 3
Dependent Claim
37 words
An ink recorder as claimed in claim 1, wherein the extraction systems are combined to form a common extraction system within the block, and wherein the control electrodes are electrically insulated from the said common extraction system.
Claim 4
Dependent Claim
27 words
An ink recorder as claimed in claim 2 wherein the extraction system includes a conical vacuum chamber disposed between the insides of the centerline of the nozzles.
Claim 5
Dependent Claim
28 words
An ink recorder as claimed in claim 2 wherein the extraction system also includes an annular vacuum chamber disposed around the outsides of the centerline of the nozzles.
Claim 6
Dependent Claim
18 words
An ink recorder as claimed in claim 1, wherein the extraction systems are sealed off from one another.
Claim 7
Dependent Claim
32 words
An ink recorder as claimed in claim 5, wherein the extraction systems are electrically insulated with respect to one another and each have the same electrical potential as the associated control electrode.
Claim 8
Dependent Claim
26 words
An ink recorder as claimed in claim 1 wherein the nozzle centerlines are disposed at angles of about 120° relative to each other along the generatrix.
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) | 1980-04-11 | 1980-10-11 | 1981-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-04-11 | 1984-10-11 | 1985-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-04-11 | 1988-10-11 | 1989-04-12 | $7700.00 | Window Closed / Lapsed |