Patent US4416537A successfully refreshed from Google Patents.
US4416537A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cleaning system
Assignee: Xerox Corp
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Filing: 1981-05-18
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Granted: 1983-11-22
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Expires: 2001-05-18
Abstract
Abstract An apparatus in which a belt transports cleaning material into contact with particles adhering to a substantially rigid member. The belt is maintained at a pre-selected tension. In this way, the cleaning material and particles are compressed and space the belt from the rigid member.
Inventors
- 👤 Robert W. Gundlach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:01
CPC Classifications
G; G03; G03G; G03G21/00; G03G21/0005; G03G21/0041
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
100 words
An apparatus for removing particles from a substantially rigid member, including: flexible means, positioned closely adjacent to the rigid member defining a cleaning zone therebetween, for transporting a cleaning material into contact with the particles adhering to the rigid member; means for maintaining said flexible means at a pre-selected tension of sufficient magnitude to compress the cleaning material and particles in the cleaning zone and to space said flexible means from the rigid member; and means for moving said belt toward the rigid member upon actuation of the apparatus and away from the rigid member upon de-actuation of the apparatus.
Claim 2
Independent Claim
100 words
An apparatus for removing particles from a substantially rigid member, including: flexible means, positioned closely adjacent to the rigid member defining a cleaning zone therebetween, for transporting a cleaning material into contact with the particles adhering to the rigid member; means for maintaining said flexible means at a pre-selected tension of sufficient magnitude to compress the cleaning material and particles in the cleaning zone and to space said flexible means from the rigid member; and means for moving said belt toward the rigid member upon actuation of the apparatus and away from the rigid member upon de-actuation of the apparatus.
Claim 3
Independent Claim
71 words
An apparatus for removing particles from a substantially rigid member, said apparatus comprising: a flexible particle removing member; and a pair of support members for said flexible member, said support members being positioned relative to said rigid member such that a portion of said flexible member intermediate said pair of support members is spaced from said substantially rigid member and substantially parallel thereto to thereby define an elongated cleaning zone therebetween.
Claim 4
Independent Claim
71 words
An apparatus for removing particles from a substantially rigid member, said apparatus comprising: a flexible particle removing member; and a pair of support members for said flexible member, said support members being positioned relative to said rigid member such that a portion of said flexible member intermediate said pair of support members is spaced from said substantially rigid member and substantially parallel thereto to thereby define an elongated cleaning zone therebetween.
Claim 5
Dependent Claim
20 words
Apparatus according to claim 2 wherein said flexible member comprises an endless belt entrained about said pair of support members.
Claim 6
Dependent Claim
14 words
Apparatus according to claim 3 further comprising means for electrically biasing said endless belt.
Claim 7
Dependent Claim
15 words
Apparatus according to claim 4 wherein said endless belt is fabricated from a conductive material.
Claim 8
Dependent Claim
15 words
Apparatus according to claim 5 further comprising means for removing the particles from said belt.
Claim 9
Dependent Claim
25 words
Apparatus according to claim 6 further comprising means for collecting the particles removed from said belt and means to remove particles to a remote location.
Claim 10
Dependent Claim
15 words
Apparatus according to claim 7 further comprising means for attracting cleaning material to said belt.
Claim 11
Dependent Claim
50 words
Apparatus according to claim 8 further comprising belt moving means for moving said belt towards said rigid member upon actuation of said apparatus for compressing the cleaning material attracted to said belt between said belt and said rigid member and away from the rigid member upon de-actuation of the apparatus.
Claim 12
Dependent Claim
82 words
An electrophotographic printing machine of the type having residual toner particles adhering to a substantially rigid photoconductive member wherein the improvement includes: a flexible particle removing member; and a pair of support members for said flexible member, said support members being positioned relative to said rigid photoconductive member such that a portion of said flexible member intermediate said pair of support members is spaced from said substantially rigid photoconductive member and substantially parallel thereto to thereby define an elongated cleaning zone therebetween.
Claim 13
Dependent Claim
82 words
An electrophotographic printing machine of the type having residual toner particles adhering to a substantially rigid photoconductive member wherein the improvement includes: a flexible particle removing member; and a pair of support members for said flexible member, said support members being positioned relative to said rigid photoconductive member such that a portion of said flexible member intermediate said pair of support members is spaced from said substantially rigid photoconductive member and substantially parallel thereto to thereby define an elongated cleaning zone therebetween.
Claim 14
Dependent Claim
22 words
A printing machine according to claim 10 wherein said flexible member comprises an endless belt entrained about said pair of support members.
Claim 15
Dependent Claim
16 words
A printing machine according to claim 11 further comprising means for electrically biasing said endless belt.
Claim 16
Dependent Claim
17 words
A printing machine according to claim 12 wheren said endless belt is fabricated from a conductive material.
Claim 17
Dependent Claim
17 words
A printing machine according to claim 13 further comprising means for attracting cleaning material to said belt.
Claim 18
Dependent Claim
52 words
A printing machine according to claim 14 further comprising belt moving means for moving said belt toward said rigid member upon actuation of said apparatus for compressing the cleaning material attracted to said belt between said belt and said rigid member and away from the rigid member upon de-actuation of the apparatus.
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) | 1986-11-21 | 1987-05-23 | 1987-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-11-21 | 1991-05-23 | 1991-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-11-21 | 1995-05-23 | 1995-11-22 | $7700.00 | Window Closed / Lapsed |