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US4298276A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cassette type roll sheet feeding apparatus
Assignee: Olympus Corp
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Filing: 1979-12-10
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Granted: 1981-11-03
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Expires: 1999-12-10
Abstract
Abstract A cassette roll sheet feeding apparatus for feeding a roll sheet from a cassette after the roll sheet cassette is loaded in a copying machine employs a sheet guide. The sheet guide is near a sheet outlet having at least one opening. An assembly such as a roller rotatably journaled by a shaft, serves to assist the feeding of the roll sheet through the outlet and is urged against the sheet guide through the leading end of the roll sheet. A sheet feed roller is in the copying machine body and projects through the opening in the sheet guide to hold the sheet in cooperation with the roller, when the cassette is mounted in the copying machine body. The sheet is held at the leading end portion when the cassette is removed from the copying machine body.
Inventors
- 👤 Hiroshi Tsuda
- 👤 Kiyoshi Miyashita
- 👤 Katsuhiko Kimura
- 👤 Heihachi Arima
- 👤 Osamu Ishimoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:30
CPC Classifications
B; B65; B65H; B65H16/00; B65H16/02; B65H20/00; B65H20/02; G; G03; G03B; G03B27/00; G03B27/32; G03B27/52; G03B27/58; G03B27/587; G03B27/588; G03G; G03G15/00; G03G15/65; G03G15/6517; G03G15/6523; G03G15/6588; G03G15/6594; B65H2405/00; B65H2405/10; B65H2405/11; B65H2405/111; B65H2405/1117; G03G2215/00; G03G2215/00362; G03G2215/00443; G03G2215/00518
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
198 words
A cassette type roll sheet feeding apparatus for feeding a roll sheet from a cassette after the roll sheet cassette is removably loaded in a copying machine body, comprising: a sheet guide provided in said roll sheet cassette disposed near a sheet outlet and having at least one opening; means for assisting the feeding of said roll sheet; said means are provided in the cassette at such a position that it faces the opening formed in said sheet guide to assist the feeding of the roll sheet through the outlet, said means being urged against the sheet guide through the leading end of roll sheet; and a sheet feed roller provided in said copying machine body, said roller being adapted to project through said opening in the sheet guide, to hold a leading end portion of said sheet in cooperation with said means for assisting the feeding of the sheet from the outlet, when said cassette is mounted in the copying machine body; whereby, said sheet is held at the leading end portion thereof between said means for assisting the feeding of the sheet and said sheet guide, when said cassette is removed from the copying machine body.
Claim 2
Dependent Claim
198 words
A cassette type roll sheet feeding apparatus for feeding a roll sheet from a cassette after the roll sheet cassette is removably loaded in a copying machine body, comprising: a sheet guide provided in said roll sheet cassette disposed near a sheet outlet and having at least one opening; means for assisting the feeding of said roll sheet; said means are provided in the cassette at such a position that it faces the opening formed in said sheet guide to assist the feeding of the roll sheet through the outlet, said means being urged against the sheet guide through the leading end of roll sheet; and a sheet feed roller provided in said copying machine body, said roller being adapted to project through said opening in the sheet guide, to hold a leading end portion of said sheet in cooperation with said means for assisting the feeding of the sheet from the outlet, when said cassette is mounted in the copying machine body; whereby, said sheet is held at the leading end portion thereof between said means for assisting the feeding of the sheet and said sheet guide, when said cassette is removed from the copying machine body.
Claim 3
Dependent Claim
25 words
An apparatus as claimed in claim 1, wherein: said means for assisting the feeding of roll sheet comprises a roller rotatably journaled by a shaft.
Claim 4
Dependent Claim
34 words
An apparatus as claimed in claim 2, wherein: spring means are provided for bringing the roller of the assisting means into pressure contact with the sheet guide, through the leading end of roll sheet.
References Cited (Backward Citations)
US3722999A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-11-02 | 1985-05-04 | 1985-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-11-02 | 1989-05-04 | 1989-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-11-02 | 1993-05-04 | 1993-11-03 | $7700.00 | Window Closed / Lapsed |