US3924019A
Expired / Lapsed
US
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Method of raised xerographic printing and product
Assignee: EZEKIEL JACOB J
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Filing: 1973-07-16
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Granted: 1975-12-02
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Expires: 1993-07-16
Abstract
Abstract Raised Xerographic printing is produced by the use of thermally intumesced electroscopic powders for the development of electrophotographic images. Intumescent electroscopic powders are blended with the powdered pigmented ''''ink'''' or ''''Toner'''' in the ink reservoir of a Xerographic copying machine. The image is formed and transferred to a paper carrier in the well-known process of Carlson, U.S. Pat. No. 2,297,691. The heat used in thermoadhesively attaching the ''''Toner'''' to the paper carrier also causes great intumescence of the intumescent powder, resulting in a raised image. The image is similar in appearance and texture to ''''engraving'''' or raised thermographic printing. It can be read by the sightless by tactile recognition. The intumescent powder used is made of vinylidene-chlorideacrylonitrile-isobutane as described by the inventor in his Disclosure Document No. 001078 filed in the U.S. Patent Office on Dec. 22, 1969. Original Application was submitted in raised printing exemplifying this invention. It was produced by the normal copying operation of a Xerox 813 Copier without any mechanical changes using the intumescent ''''Toner'''' of the present invention.
Inventors
- 👤 Ezekiel J Jacob
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:17
CPC Classifications
G; G03; G03G; G03G9/00; G03G9/08; G03G9/09; G03G9/0926; G03G13/00; G03G13/22; G09; G09B; G09B21/00; G09B21/001; G09B21/003; Y; Y10; Y10S; Y10S101/00; Y10S101/37; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24934
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
77 words
A METHOD OF PRODUCING RAISED IMAGES BY XEROGRAPHIC MEANS COMPRISING THE STEPS OF (A) PRODUCING AN ELECTROSTATIC LATENT IMAGE ON A XEROGRAPHIC MEMBER, (B) CONTACTING SAID MEMBER WITH A DRY, FREE-FLOWING, SELF-CONTAINED INTUMESCENT ELECTROSCOPIC TONER MIXTURE TO DEVELOP SAID ELECTROSTATIC LATENT IMAGE, (C) TRANSFERRING THE DISTRIBUTED TONER FROM SAID MEMBER TO A TRANSFER SURFACE AND (D) SUBJECTING SAID TRANSFERRED TONER TO HEAT SUFFICIENT TO CAUSE INTUMESCENCE THEREOF AND THEREBY PROVIDE A PERMANENT RAISED IMAGE ON SAID SURFACE.
Claim 2
Independent Claim
77 words
A METHOD OF PRODUCING RAISED IMAGES BY XEROGRAPHIC MEANS COMPRISING THE STEPS OF (A) PRODUCING AN ELECTROSTATIC LATENT IMAGE ON A XEROGRAPHIC MEMBER, (B) CONTACTING SAID MEMBER WITH A DRY, FREE-FLOWING, SELF-CONTAINED INTUMESCENT ELECTROSCOPIC TONER MIXTURE TO DEVELOP SAID ELECTROSTATIC LATENT IMAGE, (C) TRANSFERRING THE DISTRIBUTED TONER FROM SAID MEMBER TO A TRANSFER SURFACE AND (D) SUBJECTING SAID TRANSFERRED TONER TO HEAT SUFFICIENT TO CAUSE INTUMESCENCE THEREOF AND THEREBY PROVIDE A PERMANENT RAISED IMAGE ON SAID SURFACE.
Claim 3
Independent Claim
94 words
A method of producing raised images by xerographic means for use as braille images comprising the steps of (a) producing an electrostatic latent image on a xerographic member, (b) contacting said member with a dry, free-flowing, self-contained intumescent electroscopic toner mixture in an amount sufficient to provide ultimate braille images to develop said electrostatic latent image, (c) transferring the distributed toner from said member to a transfer surface and (d) subjecting said transferred toner to heat sufficient to cause intumescence thereof and thereby provide a permanent raised image of braille significance on said surface.
Claim 4
Independent Claim
94 words
A method of producing raised images by xerographic means for use as braille images comprising the steps of (a) producing an electrostatic latent image on a xerographic member, (b) contacting said member with a dry, free-flowing, self-contained intumescent electroscopic toner mixture in an amount sufficient to provide ultimate braille images to develop said electrostatic latent image, (c) transferring the distributed toner from said member to a transfer surface and (d) subjecting said transferred toner to heat sufficient to cause intumescence thereof and thereby provide a permanent raised image of braille significance on said surface.
Claim 5
Independent Claim
88 words
A method of producing images by xerographic means comprising the steps of (a) producing an electrostatic latent image on a xerographic member, (b) contacting said member with a dry, free-flowing, self-contained intumescent electroscopic toner mixture to develop said electrostatic latent image, (c) transferring the distributed toner from said member to a transfer surface and (d) subjecting said transferred toner to heat sufficient to cause intumescence thereof while at the same time subjecting said surface and toner to pressure thereby to provide a permanent compacted image on said surface.
Claim 6
Independent Claim
88 words
A method of producing images by xerographic means comprising the steps of (a) producing an electrostatic latent image on a xerographic member, (b) contacting said member with a dry, free-flowing, self-contained intumescent electroscopic toner mixture to develop said electrostatic latent image, (c) transferring the distributed toner from said member to a transfer surface and (d) subjecting said transferred toner to heat sufficient to cause intumescence thereof while at the same time subjecting said surface and toner to pressure thereby to provide a permanent compacted image on said surface.
Claim 7
Independent Claim
91 words
A method of producing images by xerographic means comprising the steps of (a) producing an electrostatic latent image on a xerographic member, (b) contacting said member with a dry, free-flowing, self-contained colored intumescent electroscopic toner mixture to develop said electrostatic latent image, (c) transferring the distributed toner from said member to a transfer Surface and (d) subjecting said transferred toner to heat sufficient to cause intumescence thereof while at the same time subjecting said surface and toner to compression and thereby to provide a permanent compacted color image on said surface.
Claim 8
Independent Claim
91 words
A method of producing images by xerographic means comprising the steps of (a) producing an electrostatic latent image on a xerographic member, (b) contacting said member with a dry, free-flowing, self-contained colored intumescent electroscopic toner mixture to develop said electrostatic latent image, (c) transferring the distributed toner from said member to a transfer Surface and (d) subjecting said transferred toner to heat sufficient to cause intumescence thereof while at the same time subjecting said surface and toner to compression and thereby to provide a permanent compacted color image on said surface.
Claim 9
Independent Claim
93 words
A method of producing raised images by xerographic means comprising the steps of (a) producing an electrostatic latent image on a xerographic member, (b) contacting said member with a dry, free-flowing, self-contained intumescent electroscopic toner mixture to develop said electrostatic latent image, (c) transferring the distributed toner from said member to a transfer surface and (d) subjecting said transferred toner to heat sufficient to cause intumescence thereof while at the same time subjecting said surface and adhered toner to selective compression and thereby to provide a permanent bas relief image on said surface.
Claim 10
Independent Claim
93 words
A method of producing raised images by xerographic means comprising the steps of (a) producing an electrostatic latent image on a xerographic member, (b) contacting said member with a dry, free-flowing, self-contained intumescent electroscopic toner mixture to develop said electrostatic latent image, (c) transferring the distributed toner from said member to a transfer surface and (d) subjecting said transferred toner to heat sufficient to cause intumescence thereof while at the same time subjecting said surface and adhered toner to selective compression and thereby to provide a permanent bas relief image on said surface.
Claim 11
Independent Claim
93 words
A method of producing a silk screen master by xerographic means comprising the steps of (a) producing an electrostatic latent image on a xerographic member, (b) contacting said member with a dry, free-flowing, self-contained intumescent electroscopic toner mixture to develop said electrostatic latent image, (c) transferring the distributed toner from said member to a textile transfer surface and (d) subjecting said transferred toner to heat sufficient to cause intumescence thereof while at the same time subjecting said surface and toner to compression and thereby to provide a permanent compacted image on said surface.
Claim 12
Independent Claim
93 words
A method of producing a silk screen master by xerographic means comprising the steps of (a) producing an electrostatic latent image on a xerographic member, (b) contacting said member with a dry, free-flowing, self-contained intumescent electroscopic toner mixture to develop said electrostatic latent image, (c) transferring the distributed toner from said member to a textile transfer surface and (d) subjecting said transferred toner to heat sufficient to cause intumescence thereof while at the same time subjecting said surface and toner to compression and thereby to provide a permanent compacted image on said surface.
Claim 13
Dependent Claim
9 words
Raised xerographic printing produced by the method of claim
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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) | 1978-12-01 | 1979-06-02 | 1979-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-01 | 1983-06-02 | 1983-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-01 | 1987-06-02 | 1987-12-02 | $7700.00 | Window Closed / Lapsed |