US4260243A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cleaning apparatus
Assignee: Pitney Bowes Inc
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Filing: 1979-10-15
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Granted: 1981-04-07
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Expires: 1999-10-15
Abstract
Abstract A cleaning apparatus for use in an electrostatographic reproducing machine to remove magnetic toner particles from a moving surface such as a photoreceptor or transfer belt is disclosed. The cleaning apparatus comprises a frame member which includes means for containing toner particles therein; scraping means positioned in contiguous relation to said moving surface whereby toner particles adhering to the surface are removed therefrom; and magnetic means positioned on the frame opposite to the location of the scraping means for attracting the magnetic toner particles away from the moving surface and into the container means.
Inventors
- 👤 Donald T. Dolan
- 👤 Salvatore J. Calvi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:46
CPC Classifications
G; G03; G03G; G03G21/00; G03G21/0005; G03G21/10; G03G21/12
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
105 words
A cleaning apparatus for use in an electrostatographic reproducing machine to remove magnetic toner particles from a moving surface of said machine comprising in combination: a frame member including a container means; scraping means positioned in contiguous relation to said moving surface to remove toner particles adhering to said surface; and magnetic means positioned on said frame opposite to said scraping means for attracting said toner particles away from said surface and into said container means said container means including means for breaking the magnetic attraction between the toner particles and said magnetic means whereby the toner particles can be removed from said container means.
Claim 2
Dependent Claim
105 words
A cleaning apparatus for use in an electrostatographic reproducing machine to remove magnetic toner particles from a moving surface of said machine comprising in combination: a frame member including a container means; scraping means positioned in contiguous relation to said moving surface to remove toner particles adhering to said surface; and magnetic means positioned on said frame opposite to said scraping means for attracting said toner particles away from said surface and into said container means said container means including means for breaking the magnetic attraction between the toner particles and said magnetic means whereby the toner particles can be removed from said container means.
Claim 3
Dependent Claim
17 words
A cleaning apparatus according to claim 1 wherein said scraping means is a plurality of wire elements.
Claim 4
Dependent Claim
17 words
A cleaning apparatus according to claim 2 wherein said wire elements are formed of a fibrous material.
Claim 5
Dependent Claim
17 words
A cleaning apparatus according to claim 2 wherein said scraping means is secured to said reproducing machine.
Claim 6
Dependent Claim
29 words
A cleaning apparatus according to claim 1 wherein said means for breaking the magnetic attraction is a flexible sheet of material covering the bottom portion of said container means.
Claim 7
Dependent Claim
15 words
A cleaning apparatus according to claim 5 wherein said flexible sheet of material is mylar.
Claim 8
Dependent Claim
15 words
A cleaning apparatus according to claim 1 wherein said moving surface is a transfer belt.
Claim 9
Dependent Claim
15 words
A cleaning apparatus according to claim 1 wherein said moving surface is a photoreceptor belt.
References Cited (Backward Citations)
US2878926A
Cited
US3523319A
Cited
US3859691A
Cited
US3706108A
Cited
US3918808A
Cited
US3993022A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-04-06 | 1984-10-06 | 1985-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-04-06 | 1988-10-06 | 1989-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-04-06 | 1992-10-06 | 1993-04-07 | $7700.00 | Window Closed / Lapsed |