US3998548A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sensitive drum receiving device for use in electrophotographic reproducing machine
Assignee: Fujifilm Business Innovation Corp
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Filing: 1975-08-07
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Granted: 1976-12-21
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Expires: 1995-08-07
Abstract
Abstract A sensitive drum of an electrophotographic reproducing machine, when disengaged from its driving mechanism, is received by rails provided at the opposited ends thereof and, after pulled along the rails, received and supported rotatably by rotary supporting members provided on extensions of the rails, respectively, for the purpose of cleaning of the drum.
Inventors
- 👤 Susumu Wakatsuki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:13
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/75; G03G15/751
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
98 words
A sensitive drum receiving device located in the housing of an electrophotographic reproducing machine, comprising (a) rail means, (b) a driving mechanism disposed above said rail means and releaseably connected to the sensitive drum for driving the drum, said rail means receiving and guiding opposite end portions of the sensitive drum when the latter is released from said driving mechanism and (c) rotary supporting means so disposed with respect to said rail means that said sensitive drum may be rolled from said rail means onto said rotary supporting means to rotatably support the sensitive drum for maintenance thereof.
Claim 2
Dependent Claim
98 words
A sensitive drum receiving device located in the housing of an electrophotographic reproducing machine, comprising (a) rail means, (b) a driving mechanism disposed above said rail means and releaseably connected to the sensitive drum for driving the drum, said rail means receiving and guiding opposite end portions of the sensitive drum when the latter is released from said driving mechanism and (c) rotary supporting means so disposed with respect to said rail means that said sensitive drum may be rolled from said rail means onto said rotary supporting means to rotatably support the sensitive drum for maintenance thereof.
Claim 3
Dependent Claim
33 words
A sensitive drum receiving device according to claim 1, wherein said rail means comprises a pair of oppositely disposed plate members and wherein said rotary supporting means are aligned with said plate members.
Claim 4
Dependent Claim
28 words
A sensitive drum receiving device according to claim 2, wherein each of said plate members has an end portion forming a space for setting said rotary supporting means.
Claim 5
Dependent Claim
38 words
A sensitive drum receiving device according to claim 3, wherein said rotary supporting means comprises two sets of rollers, each roller set including a pair of rollers rotatably supported in said space in an alignment with said rail.
Claim 6
Dependent Claim
40 words
A sensitive drum receiving device according to claim 1, wherein the sensitive drum is provided with reduced portions on the opposite ends thereof, said reduced portions being adapted to ride on said rail means and hence said rotary supporting means.
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) | 1979-12-21 | 1980-06-21 | 1980-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-12-21 | 1984-06-21 | 1984-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-12-21 | 1988-06-21 | 1988-12-21 | $7700.00 | Window Closed / Lapsed |