US3590412A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brush cleaning device for electrostatic machines
Assignee: Xerox Corp
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Filing: 1968-05-24
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Granted: 1971-07-06
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Expires: 1988-05-24
Abstract
Abstract A brush cleaning device for use with the developing system of an electrostatic reproduction machine includes a rotating flicker bar in the path of movement of the tips of the bristles of a cleaning brush. As the bristle tips engage and slide over the bar, toner particles on the bristle tips are flicked-off and are extracted from the vicinity of the brush by a vacuum system.
Inventors
- 👤 Dennis Paul Gerbasi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:14
CPC Classifications
G; G03; G03G; G03G21/00; G03G21/0005; G03G21/0035; G03C; G03C8/00; G03C8/02; G03C8/04; G03C8/06; Y; Y10; Y10S; Y10S118/00; Y10S118/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
176 words
Apparatus for removing previously charged particles from a surface including a housing, a cylindrical brush mounted for rotation in the housing and in sweeping contact with the surface, means for rotating said brush for producing a continuous sweeping action of the bristles of the brush relative to the surface thereby removing particles therefrom, an elongated flicking member extending parallel to and along substantially the length of said brush and positioned so as to be inwardly radially relative to the outer tips of the bristles whereby rotation of the brush will produce flicking action for the particles adhering to the bristles, said flicking member being coated with a material having its relative position in a triboelectric series different than for the material of the bristles whereby a charge is produced on the bristles tips of opposite polarity to that on the particles for attracting the same from the surface and wherein the charge on the bristles is opposite that of the charge on the flicking member for repelling the particles from the flicking member after a flicking.
Claim 2
Dependent Claim
176 words
Apparatus for removing previously charged particles from a surface including a housing, a cylindrical brush mounted for rotation in the housing and in sweeping contact with the surface, means for rotating said brush for producing a continuous sweeping action of the bristles of the brush relative to the surface thereby removing particles therefrom, an elongated flicking member extending parallel to and along substantially the length of said brush and positioned so as to be inwardly radially relative to the outer tips of the bristles whereby rotation of the brush will produce flicking action for the particles adhering to the bristles, said flicking member being coated with a material having its relative position in a triboelectric series different than for the material of the bristles whereby a charge is produced on the bristles tips of opposite polarity to that on the particles for attracting the same from the surface and wherein the charge on the bristles is opposite that of the charge on the flicking member for repelling the particles from the flicking member after a flicking.
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) | 1974-07-05 | 1975-01-04 | 1975-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-05 | 1979-01-04 | 1979-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-05 | 1983-01-04 | 1983-07-06 | $7700.00 | Window Closed / Lapsed |