US3766593A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cleaning apparatus for insulating surfaces
Assignee: Xerox Corp
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Filing: 1971-07-02
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Granted: 1973-10-23
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Expires: 1991-07-02
Abstract
Abstract Apparatus for cleaning residual particulate material remaining after transfer of a developed image from an insulator. The apparatus comprises rotating and stationary brushes for cleaning both surfaces of the insulator, both brushes enmeshing after the cleaning cycle to provide a brush self-cleaning action for the stationary brush. The apparatus is designed such that air flow is at a maximum at the point where the particulate material would normally be centrifuged out of the brush housing, thereby minimizing leakage of the particulate material despite a gap between the insulator and the brush housing.
Inventors
- 👤 G Becker
- 👤 J Santoro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:31
CPC Classifications
G; G03; G03G; G03G21/00; G03G21/0005; G03G21/0035
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
119 words
Apparatus for cleaning opposite surfaces of a plate member comprising: a first brush member adapted for rotation about the central axis thereof for cleaning a first surface of a plate member, a second brush member supported for movement in a direction substantially normal to the surface of said cylindrical brush member for cleaning a second surface of said plate member, means normally biasing said second brush member into contact with said first brush member to form a nip therebetween, and means for rotating said first brush member about said central axis to clean said second brush member in said normally biased position and to clean said first surface of said plate member as it is advanced through said nip.
Claim 2
Dependent Claim
119 words
Apparatus for cleaning opposite surfaces of a plate member comprising: a first brush member adapted for rotation about the central axis thereof for cleaning a first surface of a plate member, a second brush member supported for movement in a direction substantially normal to the surface of said cylindrical brush member for cleaning a second surface of said plate member, means normally biasing said second brush member into contact with said first brush member to form a nip therebetween, and means for rotating said first brush member about said central axis to clean said second brush member in said normally biased position and to clean said first surface of said plate member as it is advanced through said nip.
Claim 3
Dependent Claim
35 words
The apparatus as defined in claim 1 wherein said first surface is the surface of photoconductive insulator and said second surface is the surface of a conductive substrate, said photoconductive insulator overlying said conductive substrate.
Claim 4
Dependent Claim
88 words
The apparatus as defined in claim 2 wherein said first brush member is partially enclosed in a housing, said housing including a cylindrically shaped portion disposed coaxially to said first brush member and at least one flat portion, means interposed between said first brush member and said cylindrically shaped portion for restricting air flow in one side of said housing, and means for introducing an air flow into said housing whereby maximum air intake occurs on the side of the housing where the air flow is not restricted.
Claim 5
Dependent Claim
65 words
The apparatus as defined in claim 3 wherein said plate member enters the cleaning apparatus at the side of the housing where maximum air intake occurs, the plate member being separated from said flat portion of said housing by a gap, maximum air intake at said gap causing particulate material removed from said first surface of said photoconductive insulator to be entrained within said housing.
Claim 6
Dependent Claim
177 words
Apparatus for cleaning opposite surfaces of an electrophotographic plate meMber comprising: a first brush member of cylindrical configuration adapted for rotation about the central axis thereof for cleaning the photoconductive surface of said plate member, a second brush member for cleaning the surface of said electrophotographic plate member opposite the photoconductive surface thereof, means supporting said second brush member for movement in a direction substantially normal to the central axis of said first brush member, means operatively associated with said second brush member for normally biasing said second brush member into contact with said first brush member, means for advancing said electrophotographic plate member between said first brush member and said second brush members, said biasing means biasing said second brush member and said electrophotographic plate member in a direction toward said first brush member, and means for rotating said first brush member about said central axis, the photoconductive surface of said electrophotographic plate member supported in contact therewith and said second brush member, in its normally biased position, being cleaned by the rotating first brush member.
Claim 7
Dependent Claim
177 words
Apparatus for cleaning opposite surfaces of an electrophotographic plate meMber comprising: a first brush member of cylindrical configuration adapted for rotation about the central axis thereof for cleaning the photoconductive surface of said plate member, a second brush member for cleaning the surface of said electrophotographic plate member opposite the photoconductive surface thereof, means supporting said second brush member for movement in a direction substantially normal to the central axis of said first brush member, means operatively associated with said second brush member for normally biasing said second brush member into contact with said first brush member, means for advancing said electrophotographic plate member between said first brush member and said second brush members, said biasing means biasing said second brush member and said electrophotographic plate member in a direction toward said first brush member, and means for rotating said first brush member about said central axis, the photoconductive surface of said electrophotographic plate member supported in contact therewith and said second brush member, in its normally biased position, being cleaned by the rotating first brush member.
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) | 1976-10-22 | 1977-04-23 | 1977-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-22 | 1981-04-23 | 1981-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-22 | 1985-04-23 | 1985-10-23 | $7700.00 | Window Closed / Lapsed |