US4941022A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Toner recovery device
Assignee: Konica Minolta Inc
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Filing: 1989-11-06
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Granted: 1990-07-10
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Expires: 2009-11-06
Abstract
Abstract The invention provides a toner recovery device for collecting toner from a cleaning device into a recovery toner container. The device includes a toner conveyance, an operating lever and a shutter. The tone conveyance has a conveyance pipe whose base end portion is rotatably connected to the cleaning device and tip end portion with an outlet opening is detachably coupled to an inlet opening of the recovery toner container so that the tip end portion is pivotted around the base end portion so as to take the coupled position and the detached position. The operating lever is linked to the conveying pipe for pivotting the tip end portion between the coupled position and the detached position. The shutter is adapted to move on the conveying pipe interlockingly with the movement of the operating lever so that the shutter closes the outlet opening of the conveying pipe on the detached position and opens the outlet opening on the coupled position.
Inventors
- 👤 Atsuo Ohmura
- 👤 Jun-ichi Koiso
- 👤 Kohji Ishii
- 👤 Mitsugu Nemoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:23
CPC Classifications
G; G03; G03G; G03G21/00; G03G21/10; G03G21/105; Y; Y10; Y10S; Y10S222/00; Y10S222/01
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
164 words
A toner recovery device for collecting toner from a cleaning device to a recovery toner container, comprising a toner conveyance means for conveying toner from said cleaning device to said recovery toner container, said toner conveyance means having a conveyance pipe whose base end portion is rotatably connected to said cleaning device and tip end portion with an outlet opening is detachably coupled to an inlet opening of said recovery toner container so that said tip end portion is pivotted around said base end portion so as to take the coupled position and the detached position; an operating lever means linked to said conveying pipe for pivotting said tip end portion between the coupled position and the detached position; a shutter means adapted to move on said conveying pipe interlockingly with the movement of said operating lever means so that said shutter means closes the outlet opening of said conveying pipe on the detached position and opens the outlet opening on the coupled position.
Claim 2
Dependent Claim
164 words
A toner recovery device for collecting toner from a cleaning device to a recovery toner container, comprising a toner conveyance means for conveying toner from said cleaning device to said recovery toner container, said toner conveyance means having a conveyance pipe whose base end portion is rotatably connected to said cleaning device and tip end portion with an outlet opening is detachably coupled to an inlet opening of said recovery toner container so that said tip end portion is pivotted around said base end portion so as to take the coupled position and the detached position; an operating lever means linked to said conveying pipe for pivotting said tip end portion between the coupled position and the detached position; a shutter means adapted to move on said conveying pipe interlockingly with the movement of said operating lever means so that said shutter means closes the outlet opening of said conveying pipe on the detached position and opens the outlet opening on the coupled position.
Claim 3
Dependent Claim
21 words
The device of claim 1, wherein said toner conveying means comprises a screw means rotatably installed inside of said conveyance pipe.
Claim 4
Dependent Claim
55 words
The device of claim 2, wherein said screw means has a length corresponding to that of said conveyance pipe and at the tip end of said screw means corresponding to the position of the outlet opening of said conveying pipe there is provide a rotatable blade member for discharging the toner from the outlet opening.
Claim 5
Dependent Claim
21 words
The device of claim 3, wherein the length of said blade member is made longer than that of the outlet opening.
Claim 6
Dependent Claim
42 words
The device of claim 3, wherein the rotation radius R of said blade member is determined to satisfy the following relation; r≦R<D/2, where r is the rotation radius of said screw member and D is the inside radius of said conveying pipe.
Claim 7
Dependent Claim
12 words
An electrostatic recording device comprising the toner recovery device of claim 1.
References Cited (Backward Citations)
US4500196A
Cited
JPS59137978A
Cited
JPS60134273A
Cited
US4630653A
Cited
JPS61114270A
Cited
US4819578A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-07-09 | 1994-01-08 | 1994-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-07-09 | 1998-01-08 | 1998-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-07-09 | 2002-01-08 | 2002-07-10 | $7700.00 | Window Closed / Lapsed |