Patent US4285090A successfully refreshed from Google Patents.
US4285090A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cleaning device for cold pressure fusing roller
Assignee: Pitney Bowes Inc
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Filing: 1979-11-21
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Granted: 1981-08-25
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Expires: 1999-11-21
Abstract
Abstract In combination, a cylindrical cold pressure fusing roller for an electrophotocopying machine and a section of wire helically strung across the surface of the cold pressure fusing roller for removing electrostatic toner particles from the cylindrical surface of the cold pressure fusing roller.
Inventors
- 👤 Walter J. Jurkowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:55
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/20; G03G15/2092
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
80 words
In combination, a cylindrical roller, a section of wire helically strung across the cylindrical surface of said roller for removing particles from the cylindrical surface of said roller, and a pair of discs flanking the ends of said roller for providing continuous linear contact between the section of wire and said rollers, said discs having a diameter less than the diameter of said roller, and wherein said section of wire is fixedly secured to the peripheral surfaces of said discs.
Claim 2
Dependent Claim
80 words
In combination, a cylindrical roller, a section of wire helically strung across the cylindrical surface of said roller for removing particles from the cylindrical surface of said roller, and a pair of discs flanking the ends of said roller for providing continuous linear contact between the section of wire and said rollers, said discs having a diameter less than the diameter of said roller, and wherein said section of wire is fixedly secured to the peripheral surfaces of said discs.
Claim 3
Dependent Claim
23 words
The combination of claim 1, wherein the section of wire wraps helically around said roller between about 1/4 and 1/360 of a turn.
Claim 4
Dependent Claim
30 words
The combination of claim 1, further including a second section of wire helically strung across the surface of the roller for removing particles missed by the first section of wire.
Claim 5
Dependent Claim
22 words
The combination of claim 3, wherein the second section of wire is circumferentially spaced about 20° from the first section of wire.
Claim 6
Dependent Claim
20 words
The combination of claim 1, wherein the section of wire wraps helically around said roller about 1/8 of a turn.
Claim 7
Dependent Claim
22 words
The combination of claim 1, wherein said roller comprises a cold pressure fusing roller and wherein said particles comprise electrostatic toner particles.
Claim 8
Dependent Claim
26 words
The combination of claim 6, wherein the section of wire wraps helically around said cold pressure fusing roller between about 1/4 and 1/360 of a turn.
Claim 9
Dependent Claim
35 words
The combination of claim 6, further including a second section of wire helically strung across the surface of the cold pressure fusing roller for removing electrostatic toner particles missed by the first section of wire.
Claim 10
Dependent Claim
23 words
The combination of claim 8, wherein the second section of wire is circumferentially spaced about 20 degrees from the first section of wire.
Claim 11
Dependent Claim
23 words
The combination of claim 6, wherein the section of wire wraps helically around said cold pressure fusing roller about 1/4 of a turn.
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) | 1984-08-24 | 1985-02-23 | 1985-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-08-24 | 1989-02-23 | 1989-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-08-24 | 1993-02-23 | 1993-08-25 | $7700.00 | Window Closed / Lapsed |