US3847480A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous blade cleaner
Assignee: Xerox Corp
•
Filing: 1973-11-12
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Granted: 1974-11-12
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Expires: 1993-11-12
Abstract
Abstract An electrostatographic cleaning system for cleaning imaging material from the imaging surface by two cleaning edges of an endless belt which continuously moves transversely across the imaging surface. Providing a Mobius (one-half) twist in the belt, and appropriate supports, causes the two belt edges to continuously switch relative to the imaging surface. Cleaning and/or lubricating of the cleaning edges can be provided spaced from the imaging surface.
Inventors
- 👤 D Fisher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:31
CPC Classifications
G; G03; G03G; G03G21/00; G03G21/0005; G03G21/0011; G03G21/0029
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
106 words
In electrostatographic apparatus, the improvement in the cleaning system for cleaning imaging material from an imaging surface with a cleaning blade comprising: an endless belt having two opposite edges, said edges being adapted to clean said imaging surface; support means for continuous motion of said belt including continuously moving a portion of one said edge of said belt transversely across said imaging surface in cleaning engagement with said imaging surface; and a mobius twist in said belt spaced from said imaging surface for automatically reversing said one edge of said belt with the other said edge of said belt into cleaning engagement with said imaging surface.
Claim 2
Dependent Claim
106 words
In electrostatographic apparatus, the improvement in the cleaning system for cleaning imaging material from an imaging surface with a cleaning blade comprising: an endless belt having two opposite edges, said edges being adapted to clean said imaging surface; support means for continuous motion of said belt including continuously moving a portion of one said edge of said belt transversely across said imaging surface in cleaning engagement with said imaging surface; and a mobius twist in said belt spaced from said imaging surface for automatically reversing said one edge of said belt with the other said edge of said belt into cleaning engagement with said imaging surface.
Claim 3
Dependent Claim
29 words
The apparatus of claim 1 including linear guide means parallel to said imaging surface for guiding a portion of said belt linearly across said imaging surface in engagement therewith.
Claim 4
Dependent Claim
28 words
The apparatus of claim 2 wherein said linear guide means is a continuous sliding support channel and includes means for flexibly deforming said belt against said imaging surface.
Claim 5
Dependent Claim
26 words
The apparatus of claim 3 wherein said belt has a thin metal central portion and said edges comprise an elastomer material mounted to said central portion.
Claim 6
Dependent Claim
24 words
The apparatus of claim 1 including cleaning means for cleaning one said edge of said belt at a position spaced from said imaging surface.
Claim 7
Dependent Claim
23 words
The apparatus of claim 5 wherein said cleaning means engages the edge of said belt opposite from the edge engaging the imaging surface.
Claim 8
Dependent Claim
24 words
The apparatus of claim 1 including lubricating means for lubricating one said edge of said belt at a position spaced from said imaging surface.
Claim 9
Dependent Claim
33 words
The apparatus of claim 1 wherein said support means further includes two parallel pulleys located respectively at opposite sides of said imaging surface, said belt being mounted on and extending between said pulleys.
Claim 10
Dependent Claim
26 words
The apparatus of claim 1 wherein said belt has a thin metal central portion and said edges comprise an elastomer material mounted to said central portion.
References Cited (Backward Citations)
US3781107A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-11-11 | 1978-05-13 | 1978-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-11 | 1982-05-13 | 1982-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-11 | 1986-05-13 | 1986-11-12 | $7700.00 | Window Closed / Lapsed |