US3872307A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Discharger for electrophotographic copying apparatus
Assignee: Canon Inc
•
Filing: 1973-02-15
•
Granted: 1975-03-18
•
Expires: 1993-02-15
Abstract
Abstract This specification discloses a discharger for use with an electrophotographic copying apparatus and removable with respect to the body of the copying apparatus. The discharger includes a single discharge wire or a plurality of discharge wires securely held by terminal receivers and extended therebetween. A shield member of substantially U-shaped cross-section surrounds the discharge wire or wires by three sides thereof. At least one side portion of the shield member is separate from the other two sides and secured to the body of the copying apparatus.
Inventors
- 👤 Kuichi Miyamoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:20
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/02; G03G15/0258
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
81 words
A dischargeR for use with an electrophotographic copying apparatus comprising a plurality of discharge wires, means for interchanging said discharge wires with one another for discharging, terminal receivers for holding said discharge wires, a shield member surrounding said discharge wires on three sides thereof, at least one side portion of said shield member being secured to the body of the said copying apparatus and the remaining portion of the discharger being removable with respect to the body of said copying apparatus.
Claim 2
Dependent Claim
81 words
A dischargeR for use with an electrophotographic copying apparatus comprising a plurality of discharge wires, means for interchanging said discharge wires with one another for discharging, terminal receivers for holding said discharge wires, a shield member surrounding said discharge wires on three sides thereof, at least one side portion of said shield member being secured to the body of the said copying apparatus and the remaining portion of the discharger being removable with respect to the body of said copying apparatus.
Claim 3
Dependent Claim
36 words
A discharger according to claim 1, wherein, means are provided for applying a high voltage to at least one of said discharge wires for effecting discharge while no voltage is applied to the other discharge wires.
Claim 4
Dependent Claim
22 words
A discharger according to claim 2, wherein said discharge wires are secured to rotatable turret means so as to be interchangeably used.
References Cited (Backward Citations)
US2811135A
Cited
US3244083A
Cited
US3358289A
Cited
US3348041A
Cited
US3499143A
Cited
US3620617A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-03-17 | 1978-09-16 | 1979-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-17 | 1982-09-16 | 1983-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-17 | 1986-09-16 | 1987-03-18 | $7700.00 | Window Closed / Lapsed |