US3883292A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sleeveless pressure roll cleaner
Assignee: Xerox Corp
•
Filing: 1973-05-29
•
Granted: 1975-05-13
•
Expires: 1993-05-29
Abstract
Abstract Roll fusing device for a xerographic reproducing apparatus characterized by the provision of a heated member for cleaning toner material from an elastomeric back-up or pressure roll. The specific heated member comprises a wire brush which is rotated such that a brushing action is performed relative to the surface of the elastomeric back-up roll.
Inventors
- 👤 Ralph A Hamaker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:22
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/20; G03G15/2003; G03G15/2014; G03G15/2017; G03G15/2025; G03G15/206
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
77 words
Apparatus for fusing electroscopic toner particles to a substrate, said apparatus comprising: a first roll member; a second roll member mounted for simultaneous rotation with said first roll member and in contact therewith; means for heating one of said roll members; and means for cleaning toner particles from the other of said members, said toner cleaning means comprising a brush rotatable in contact with the surface of said other member and including a plurality of metallic bristles.
Claim 2
Dependent Claim
77 words
Apparatus for fusing electroscopic toner particles to a substrate, said apparatus comprising: a first roll member; a second roll member mounted for simultaneous rotation with said first roll member and in contact therewith; means for heating one of said roll members; and means for cleaning toner particles from the other of said members, said toner cleaning means comprising a brush rotatable in contact with the surface of said other member and including a plurality of metallic bristles.
Claim 3
Dependent Claim
12 words
Apparatus according to claim 1 including means for heating said metallic bristles.
Claim 4
Dependent Claim
29 words
Apparatus according to claim 2 wherein said brush has a circular cross section and said bristles are arranged in a spiral configuration along the longitudinal axis of said brush.
Claim 5
Dependent Claim
25 words
Apparatus according to claim 3 including means for applying a bias voltage to said bristles such that they attract toner material from said other member.
Claim 6
Dependent Claim
34 words
Apparatus according to claim 4 including a stationary comb through which said bristles are moved whereby toner material is picked up by said brush are removed therefrom and deposited in a removable catch tray.
Claim 7
Dependent Claim
10 words
Apparatus according to claim 5 including a removable catch tray.
Claim 8
Independent Claim
60 words
The method of fusing electroscopic marking particles to the substrate in image configuration comprising the steps of: contacting said marking particles with a heated roll member and simultaneously contacting the back side of said substrate with a pressure roll member; and rotating a metallic brush in contact with the surface of said pressure roll member to remove marking particles therefrom.
Claim 9
Independent Claim
60 words
The method of fusing electroscopic marking particles to the substrate in image configuration comprising the steps of: contacting said marking particles with a heated roll member and simultaneously contacting the back side of said substrate with a pressure roll member; and rotating a metallic brush in contact with the surface of said pressure roll member to remove marking particles therefrom.
Claim 10
Dependent Claim
15 words
The method according to claim 7 including the step of supplying heat to said brush.
Claim 11
Dependent Claim
31 words
The method of claim 8 including the step of applying a bias voltage to said metallic brush to thereby cause marking particles to be attracted thereto from said pressure roll member.
Claim 12
Dependent Claim
76 words
Apparatus for fusing electroscopic toner particles to a substrate, said apparatus comprising: a first roll member; a second roll member mounted for simultaneous rotation with said first roll member and in contact therewith; means for heating one of said roll members; and means for cleaning contaminants from the other of said members, said toner cleaning means comprising a brush rotatable in contact with the surface of said other member and including a plurality of metallic bristles.
Claim 13
Dependent Claim
76 words
Apparatus for fusing electroscopic toner particles to a substrate, said apparatus comprising: a first roll member; a second roll member mounted for simultaneous rotation with said first roll member and in contact therewith; means for heating one of said roll members; and means for cleaning contaminants from the other of said members, said toner cleaning means comprising a brush rotatable in contact with the surface of said other member and including a plurality of metallic bristles.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-05-12 | 1978-11-11 | 1979-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-12 | 1982-11-11 | 1983-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-12 | 1986-11-11 | 1987-05-13 | $7700.00 | Window Closed / Lapsed |