US3894510A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Toner distributor for use with electrophotographic copying machine
Assignee: Fujifilm Business Innovation Corp
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Filing: 1974-03-04
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Granted: 1975-07-15
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Expires: 1994-03-04
Abstract
Abstract A toner distributor for use in an electrophotographic copying machine comprising a apertured, flexible plate fixedly connected at one end thereof to the bottom of a toner storage container having an opening in the bottom thereof, a rotatable brush being mounted in the container so as to deform the apertured plate against the bottom of the container as the brush rotates to thereby facilitate distribution of the toner through the plate apertures and thence through the storage container opening to the developing station of the electrophotographic copying machine.
Inventors
- 👤 Yoshio Eto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:21
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/06; G03G15/08; G03G15/0822; G03G15/0877
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
125 words
In a toner distributor for use in an electrophotographic copying machine, said distributor comprising (a) a toner storage container having an apertured, plate in the bottom thereof and (b) a rotatable brush rotatably mounted in said container and against said apertured plate so that upon rotation of said brush, toner stored in said container is distributed to a developing station in said electrophotographic copying apparatus through said apertured plate, the improvement comprising, said apertured plate being (a) sufficiently flexible so as to be deformed by said brush and (b) connected at one end thereof to the approximate bottom of said toner storage container so that the ends of said rotatable brush are in intimate contact with the flexible, apertured plate across the entire width thereof.
Claim 2
Dependent Claim
125 words
In a toner distributor for use in an electrophotographic copying machine, said distributor comprising (a) a toner storage container having an apertured, plate in the bottom thereof and (b) a rotatable brush rotatably mounted in said container and against said apertured plate so that upon rotation of said brush, toner stored in said container is distributed to a developing station in said electrophotographic copying apparatus through said apertured plate, the improvement comprising, said apertured plate being (a) sufficiently flexible so as to be deformed by said brush and (b) connected at one end thereof to the approximate bottom of said toner storage container so that the ends of said rotatable brush are in intimate contact with the flexible, apertured plate across the entire width thereof.
Claim 3
Dependent Claim
16 words
The improvement as in claim 1 where said flexible, apertured plate is a thin, leaf-shaped sheet.
References Cited (Backward Citations)
US3721209A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-07-14 | 1979-01-13 | 1979-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-14 | 1983-01-13 | 1983-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-14 | 1987-01-13 | 1987-07-15 | $7700.00 | Window Closed / Lapsed |