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US3965400A Expired / Lapsed US ⏱️ 0.0 years remaining

Corona generating device with improved built-in cleaning mechanism

Assignee: Xerox Corp
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Filing: 1975-02-24
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Granted: 1976-06-22
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Expires: 1995-02-24
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Abstract

Abstract A corona generating device having a corona wire and a shield partially surrounding the wire has an improved built-in cleaning mechanism. The cleaning mechanism includes a cleaning member slidably mounted within the shield, which member is driven back and forth along the device by a belt connected thereto. The belt is driven by a pulley rotatably mounted on the device, the pulley having gear teeth formed therein which are adapted to mesh with a drive gear. By using conventional quick-disconnect electrical connectors to connect the corona wire to a source of voltage, and a suitable supporting member to both support the device and position the pulley so that it meshes with the drive gear, the device can be easily removed from an electrostatic reproduction machine for routine maintenance, and easily inserted back into the machine.

Inventors

  • 👤 Peter M. Tolliver

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 16:05
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/02; G03G15/0258; G03G15/0291

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 162 words
An improved cleaning mechanism for a corona generating device, the device having an elongated generally U-shaped shield and a corona wire mounted within and extending along the shield, wherein the improvement comprises: a. cleaning means in contact with the corona wire and slidably mounted within the shield so as to be movable along the latter; b. a first circular member rotatably mounted on one end of the device and a second circular member rotatably mounted on the other end of the device, means forming a recess around the periphery of each of the circular memebers, and means forming gear teeth around the periphery of the first member on each side of the recess therein; c. a length of belt mounted in and supported by the recesses of the cirular members, the ends of the belt being connected to opposite sides of the cleaning member; and d. drive gear means having gear teeth meshing with the gear teeth of the first circular member.
Claim 2
Dependent Claim 162 words
An improved cleaning mechanism for a corona generating device, the device having an elongated generally U-shaped shield and a corona wire mounted within and extending along the shield, wherein the improvement comprises: a. cleaning means in contact with the corona wire and slidably mounted within the shield so as to be movable along the latter; b. a first circular member rotatably mounted on one end of the device and a second circular member rotatably mounted on the other end of the device, means forming a recess around the periphery of each of the circular memebers, and means forming gear teeth around the periphery of the first member on each side of the recess therein; c. a length of belt mounted in and supported by the recesses of the cirular members, the ends of the belt being connected to opposite sides of the cleaning member; and d. drive gear means having gear teeth meshing with the gear teeth of the first circular member.
Claim 3
Dependent Claim 20 words
The improved cleaning mechanism set forth in claim 1, wherein the cleaning means is also in contact with the shield.

References Cited (Backward Citations)

US3891846A Cited
US3842273A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1979-06-22 1979-12-22 1980-06-22 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1983-06-22 1983-12-22 1984-06-22 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1987-06-22 1987-12-22 1988-06-22 $7700.00 Window Closed / Lapsed

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