Patent US3609029A successfully refreshed from Google Patents.
US3609029A
Expired / Lapsed
US
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Materials application apparatus
Assignee: Xerox Corp
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Filing: 1969-11-14
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Granted: 1971-09-28
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Expires: 1989-11-14
Abstract
Abstract Apparatus for supplying a fluid coating to a surface. The apparatus has an extruder extending across the length of a movable surface with a manifold fluid supply system to force the fluid through the extruder. One embodiment includes a roller applicator as part of the extruder and a vacuum pickup to remove excess fluid from the surface.
Inventors
- 👤 Raymond K Egnaczak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:24
CPC Classifications
G; G03; G03G; G03G17/00; G03G17/04
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
115 words
Apparatus for forming images from particle suspensions including: first electrode means capable of maintaining an image; second electrode means for interfacing with said first electrode at an imagining area; means to present activating electromagnetic radiation at the image area; means to couple an electrical source to said electrode means for producing a field therebetween at the image area; means adjacent one of said electrode means for supplying the particle suspension to the surface thereof including chamber means for maintaining a reservoir of the suspension; a narrow egress port in said chamber means juxtaposed to the adjacent electrode means, and smoothing means to form a uniform layer of suspension on the surface of the adjacent electrode.
Claim 2
Dependent Claim
115 words
Apparatus for forming images from particle suspensions including: first electrode means capable of maintaining an image; second electrode means for interfacing with said first electrode at an imagining area; means to present activating electromagnetic radiation at the image area; means to couple an electrical source to said electrode means for producing a field therebetween at the image area; means adjacent one of said electrode means for supplying the particle suspension to the surface thereof including chamber means for maintaining a reservoir of the suspension; a narrow egress port in said chamber means juxtaposed to the adjacent electrode means, and smoothing means to form a uniform layer of suspension on the surface of the adjacent electrode.
Claim 3
Dependent Claim
14 words
The apparatus of claim 1 wherein said means adjacent the surface includes pressure-adjusting means.
Claim 4
Dependent Claim
16 words
The apparatus of claim 1 wherein said means for supplying a liquid includes pulsing valve means.
Claim 5
Dependent Claim
20 words
The apparatus of claim 1 including means for moving said means adjacent the surface toward and away from the surface.
Claim 6
Dependent Claim
16 words
The apparatus of claim 4 wherein said means for moving includes a rack and pinion means.
Claim 7
Dependent Claim
14 words
The apparatus of claim 1 furtHer including a vacuum chamber adjacent the chamber means.
Claim 8
Dependent Claim
17 words
The apparatus of claim 6 including a scraper blade separating said chamber means and said vacuum chamber.
References Cited (Backward Citations)
US3227076A
Cited
FR1301044A
Cited
US3424126A
Cited
US3368894A
Cited
US3485738A
Cited
US3384051A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-27 | 1975-03-29 | 1975-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-27 | 1979-03-29 | 1979-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-27 | 1983-03-29 | 1983-09-28 | $7700.00 | Window Closed / Lapsed |