Patent US5021830A successfully refreshed from Google Patents.
US5021830A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrostatic recording apparatus
Assignee: Konica Minolta Inc
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Filing: 1990-01-23
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Granted: 1991-06-04
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Expires: 2010-01-23
Abstract
Abstract An electrostatic recording apparatus having a cleaning device and/or a developing device, in which a container is provided and a seal member is mounted on the container. The seal member is inserted in a groove formed in the circumferential surface of an end portion of a photosensitive drum.
Inventors
- 👤 Jun-ichi Koiso
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 02:08
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/75; G03G15/751; G03G15/06; G03G15/08; G03G15/0806; G03G15/0817; G03G21/00; G03G21/0005; G03G21/007
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
36 words
An electrostatic recording apparatus comprising a cleaning device having a container, said container being provided with a seal member inserted in a groove formed in the circumferential surface of an end portion of a photosensitive drum.
Claim 2
Dependent Claim
36 words
An electrostatic recording apparatus comprising a cleaning device having a container, said container being provided with a seal member inserted in a groove formed in the circumferential surface of an end portion of a photosensitive drum.
Claim 3
Dependent Claim
41 words
The electrostatic recording apparatus according to claim 1, further comprising a developing device having a container, said container being provided with a seal member inserted in a groove formed in the circumferential surface of an end portion of a photosensitive drum.
Claim 4
Dependent Claim
36 words
An electrostatic recording apparatus comprising a developing device having a container, said container being provided with a seal member inserted in a groove formed in the circumferential surface of an end portion of a photosensitive drum.
Claim 5
Dependent Claim
36 words
An electrostatic recording apparatus comprising a developing device having a container, said container being provided with a seal member inserted in a groove formed in the circumferential surface of an end portion of a photosensitive drum.
Claim 6
Dependent Claim
63 words
An electrostatic recording apparatus comprising: a drum including a circumferential surface and a groove formed in said circumferential surface at an end portion thereof; a device for cleaning said drum, said cleaning device including a container; and a seal member for creating a seal between said drum and said container, said seal member being positioned on said container and disposed in said groove.
Claim 7
Dependent Claim
63 words
An electrostatic recording apparatus comprising: a drum including a circumferential surface and a groove formed in said circumferential surface at an end portion thereof; a device for cleaning said drum, said cleaning device including a container; and a seal member for creating a seal between said drum and said container, said seal member being positioned on said container and disposed in said groove.
Claim 8
Dependent Claim
18 words
The electrostatic recording apparatus of claim 4 wherein the seal member includes elongated fibers which engage the drum.
Claim 9
Dependent Claim
32 words
The electrostatic recording apparatus of claim 4 further comprising a gear positioned at an end of said drum, said groove being positioned between an end surface of said drum and said gear.
Claim 10
Dependent Claim
55 words
The electrostatic recording apparatus of claim 4 further comprising a device for developing an image on said drum, said developing device including a second container, and a second seal member for creating a seal between said drum and said second container, said seal member being positioned on said second container and disposed in said groove.
Claim 11
Dependent Claim
19 words
The electrostatic recording apparatus of claim 7 wherein the second seal member includes elongated fibers which engage the drum.
Claim 12
Dependent Claim
66 words
An electrostatic recording apparatus comprising: a drum having a circumferential surface and a groove formed in said circumferential surface at an end portion thereof; a device for developing an image on said drum, said developing device including a container; and a seal member for creating a seal between said drum and said container, said seal member being positioned on said container and disposed in said groove.
Claim 13
Dependent Claim
66 words
An electrostatic recording apparatus comprising: a drum having a circumferential surface and a groove formed in said circumferential surface at an end portion thereof; a device for developing an image on said drum, said developing device including a container; and a seal member for creating a seal between said drum and said container, said seal member being positioned on said container and disposed in said groove.
Claim 14
Dependent Claim
32 words
The electrostatic recording apparatus of claim 9 further comprising a gear positioned at an end of said drum, said groove being positioned between an end surface of said drum and said gear.
Claim 15
Dependent Claim
18 words
The electrostatic recording apparatus of claim 9 wherein the seal member includes elongated fibers which engage the drum.
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) | 1994-06-03 | 1994-12-03 | 1995-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-06-03 | 1998-12-03 | 1999-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-06-03 | 2002-12-03 | 2003-06-04 | $7700.00 | Window Closed / Lapsed |