US4947215A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transfer apparatus
Assignee: Dx Imaging Inc
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Filing: 1989-11-15
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Granted: 1990-08-07
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Expires: 2009-11-15
Abstract
Abstract An apparatus which transfers a liquid image from an image support surface to a sheet. A deformable cylindrical member made from a flexible, dielectric material presses the sheet against the image support surface. As the cylindrical member presses the sheet against the image support surface, it deforms to define a transfer area. A conductive roll, disposed interiorly of the cylindrical member in the transfer area, tacks the liquid image to the image support surface. A corona generating device, positioned adjacent the conductive roll interiorly of the cylindrical member, transfers the liquid image from the image support surface to the sheet.
Inventors
- 👤 Thomas C. Chuang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 17:38
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/14; G03G15/16; G03G15/163; G03G15/1635; G03G15/165; G03G15/1655; G03G15/169
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
101 words
An apparatus for transferring a liquid image from an image support surface to a sheet, including: a deformable cylindrical member comprised of a dielectric material, said cylindrical member being deformed to define a transfer area when pressing the sheet against the image support surface; means, disposed interiorly of said cylindrical member in the region of the transfer area, for tacking the liquid image to the image support surface; and means, disposed interiorly of said cylindrical member in the region of the transfer area adjacent said tacking means, for transferring the the liquid image from the image support surface to the sheet.
Claim 2
Independent Claim
101 words
An apparatus for transferring a liquid image from an image support surface to a sheet, including: a deformable cylindrical member comprised of a dielectric material, said cylindrical member being deformed to define a transfer area when pressing the sheet against the image support surface; means, disposed interiorly of said cylindrical member in the region of the transfer area, for tacking the liquid image to the image support surface; and means, disposed interiorly of said cylindrical member in the region of the transfer area adjacent said tacking means, for transferring the the liquid image from the image support surface to the sheet.
Claim 3
Dependent Claim
47 words
An apparatus according claim 1, wherein said cylindrical member includes: a tubular flexible sheet; a pair of opposed, spaced support members with one support member supporting one end of said tubular flexible sheet and the other support member supporting the other end of said tubular flexible sheet.
Claim 4
Dependent Claim
15 words
An apparatus according claim 2, wherein said tacking means includes an electrically biased conductive roll.
Claim 5
Dependent Claim
15 words
An apparatus according to claim 3, wherein said transferring means includes a corona generating device.
Claim 6
Dependent Claim
137 words
An apparatus according to claim 4, wherein said pair of support members include: a pair of substantially rigid hub members spaced from one another with one of said pair of hub members being at least partially disposed in one end of said flexible tubular sheet and the other of said pair of hub members being at least partially disposed in the other end of said flexible tubular sheet; and a pair of resilient members spaced from one another with one of said pair of resilient members being interposed between one of said pair of hub members and said flexible tubular sheet at one end thereof and the other one of said pair of resilient members being interposed between the other one of said pair of hub members and said flexible tubular sheet at the other end thereof.
Claim 7
Dependent Claim
21 words
An apparatus according to claim 5, further including means for tacking the sheet to the flexible tubular sheet for movement therewith.
Claim 8
Dependent Claim
18 words
An apparatus according to claim 6, further including means for discharging the dielectric material of said cylindrical member.
Claim 9
Dependent Claim
105 words
A printing machine of the type in which a liquid image is transferred from a photoconductive drum to a sheet, wherein the improvement includes: a deformable cylindrical member comprised of a dielectric material, said cylindrical member deforming to define a transfer area when pressing the sheet against the photoconductive drum; means, disposed interiorly of said cylindrical member in the region of the transfer area, for tacking the liquid image to the photoconductive drum; and means, disposed interiorly of said cylindrical member in the region of the transfer area adjacent said tacking means, for transferring the the liquid image from the photoconductive drum to the sheet.
Claim 10
Dependent Claim
105 words
A printing machine of the type in which a liquid image is transferred from a photoconductive drum to a sheet, wherein the improvement includes: a deformable cylindrical member comprised of a dielectric material, said cylindrical member deforming to define a transfer area when pressing the sheet against the photoconductive drum; means, disposed interiorly of said cylindrical member in the region of the transfer area, for tacking the liquid image to the photoconductive drum; and means, disposed interiorly of said cylindrical member in the region of the transfer area adjacent said tacking means, for transferring the the liquid image from the photoconductive drum to the sheet.
Claim 11
Dependent Claim
49 words
A printing machine according to claim 8, wherein said cylindrical member includes: a tubular flexible sheet; a pair of opposed, spaced support members with one support member supporting one end of said tubular flexible sheet and the other support member supporting the other end of said tubular flexible sheet.
Claim 12
Dependent Claim
17 words
A printing machine according to claim 9, wherein said tacking means includes an electrically biased conductive roll.
Claim 13
Dependent Claim
16 words
A printing machine according to claim 10, wherein said transferring means includes a corona generating device.
Claim 14
Dependent Claim
138 words
A printing machine according to claim 11, wherein said pair of support members include: a pair of substantially rigid hub members spaced from one another with one of said pair of hub members being at least partially disposed in one end of said flexible tubular sheet and the other of said pair of hub members being at least partially disposed in the other end of said flexible tubular sheet; and a pair of resilient members spaced from one another with one of said pair of resilient members being interposed between one of said pair of hub members and said flexible tubbular sheet at one end thereof and the other one of said pair of resilient members being interposed between the other one of said pair of hub members and said flexible tubular sheet at the other end thereof.
Claim 15
Dependent Claim
22 words
A printing machine according to claim 12, further including means for tacking the sheet to said flexible tubular sheet for movement therewith.
Claim 16
Dependent Claim
19 words
A printing machine according to claim 13, further including means for discharging the dielectric material of said cylindrical member.
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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) | 1993-08-06 | 1994-02-05 | 1994-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-08-06 | 1998-02-05 | 1998-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-08-06 | 2002-02-05 | 2002-08-07 | $7700.00 | Window Closed / Lapsed |