US3642364A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transfer apparatus
Assignee: Xerox Corp
•
Filing: 1969-11-14
•
Granted: 1972-02-15
•
Expires: 1989-11-14
Abstract
Abstract A mechanism for carrying sheets of support material past a wetting station and an electrophoretic image transfer station using grippers and lifter fingers to engage and disengage the sheet. The mechanism includes a roller capable of holding an electrical potential and a brush to contact and clean contaminating material from the roller. The entire mechanism can be moved into and out of contact with the member from which images will be electrophoretically transferred. Optionally, the image-bearing support material passes a fixer to heat the image for drying it and bonding it to the support material.
Inventors
- 👤 Raymond K Egnaczak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:04
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/20; G03G15/2003; G03G15/2007; G03G15/14; G03G15/16; G03G15/1665; G03G15/167; G03G17/00; G03G17/04
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
117 words
Transfer apparatus including a transfer member; means to fasten a support sheet on the surface of said member; means to move said member along a path including a first position for interfacing with a substance for transfer to the sheet; means to couple said member to an electrical source for electrophoretic attraction of the substance for transfer to the support sheet; means to apply material to the support sheet on the member at a second position along a path of movement of the member prior to interface with the substance for transfer; and, means to release the support sheet from the member at a third position along the path of movement thereof after transfer of the substance.
Claim 2
Dependent Claim
117 words
Transfer apparatus including a transfer member; means to fasten a support sheet on the surface of said member; means to move said member along a path including a first position for interfacing with a substance for transfer to the sheet; means to couple said member to an electrical source for electrophoretic attraction of the substance for transfer to the support sheet; means to apply material to the support sheet on the member at a second position along a path of movement of the member prior to interface with the substance for transfer; and, means to release the support sheet from the member at a third position along the path of movement thereof after transfer of the substance.
Claim 3
Dependent Claim
39 words
The apparatus of claim 1 wherein said means to apply material to the support sheet includes a material container; applicator means in said container contacting the material and adapted to contact a support sheet on the transfer roller surface.
Claim 4
Dependent Claim
28 words
The apparatus of claim 1 wherein said means to move said member is adapted to rotate said member in interface with the substance for transfer in rolling contact.
Claim 5
Dependent Claim
48 words
The apparatus of claim 2 further including means to shift at least a portion of said appliCator means into and out of interface with the support sheet, and programmer means to activate and deactivate said means to shift at predetermined times during the movement of the transfer member.
Claim 6
Dependent Claim
11 words
The apparatus of claim 1 wherein said material includes a liquid.
Claim 7
Dependent Claim
26 words
The apparatus of claim 1 wherein the material applied to the support sheet is of the same matter as comprises a portion of substance for transfer.
Claim 8
Dependent Claim
15 words
The apparatus of claim 1 wherein the material includes a binder dissolved in a solvent.
Claim 9
Dependent Claim
30 words
The apparatus of claim 1 further including means to heat the support sheet after release from the member and means to transport the support sheet to the means to heat.
Claim 10
Dependent Claim
45 words
The apparatus of claim 8 wherein said means to heat include belt transport means to move a sheet through said means to heat; a radiant heat source to supply radiant heat energy at the belt transport means, and means to heat said belt transport means.
Claim 11
Dependent Claim
34 words
Apparatus of claim 1 further including means to clean the surface of the transfer member at a fourth position along the path of movement thereof after release of a support sheet from the member.
Claim 12
Dependent Claim
48 words
The apparatus of claim 10 wherein said means to clean further includes a brush; means to rotate said brush; a chamber housing said brush having an aperture for accepting said member and second aperture, and pressure reduction means to remove contaminants from the chamber through the second aperture.
Claim 13
Dependent Claim
19 words
The apparatus of claim 11 further including a flicker bar operatively contacting the brush bristles for removing contaminants therefrom.
Claim 14
Dependent Claim
49 words
The apparatus of claim 1 wherein said means to fasten a support sheet includes gripper means; actuator means to open and close said gripper means to accept and hold a support sheet; control means to operate said means to open and close said gripper to accept a support sheet.
Claim 15
Dependent Claim
59 words
The apparatus of claim 1 wherein said means to release the support sheet includes means to open said means to fasten; lifter finger means to intercept the lead edge of a support sheet; release actuator means to operate said means to open and said finger means in timed relation to release a sheet held by said means to fasten.
Claim 16
Dependent Claim
43 words
The apparatus of claim 14 including means to puff gases toward the lead edge of a support sheet at said means to release, said means to puff gases being activated by said release actuator means in timed relation to said lifter finger means.
Claim 17
Dependent Claim
49 words
The apparatus of claim 1 wherein said transfer member includes a shaft; an electrically conductive core around said shaft; a relatively electrically insulating sleeve intimately secured to said core, a slot in said sleeve, and a housing within said slot for maintaining said means to fasten a support sheet.
Claim 18
Dependent Claim
36 words
The apparatus of claim 16 including gripper fingers adapted to clamp on a wall of said housing; a shaft maintaining said gripper fingers and journaled through said housing and adapted for oscillatory movement of said fingers.
References Cited (Backward Citations)
US510630A
Cited
US533443A
Cited
US1194702A
Cited
US668562A
Cited
US1107773A
Cited
US2889806A
Cited
US3169081A
Cited
US3079483A
Cited
US3163558A
Cited
US3427242A
Cited
US3506259A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-02-14 | 1975-08-16 | 1976-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-14 | 1979-08-16 | 1980-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-14 | 1983-08-16 | 1984-02-15 | $7700.00 | Window Closed / Lapsed |