Patent US3955530A successfully refreshed from Google Patents.
US3955530A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transfer-fixing device
Assignee: Canon Inc
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Filing: 1974-06-26
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Granted: 1976-05-11
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Expires: 1994-06-26
Abstract
Abstract In a transfer-fixing device for transferring a developed image from an image carrier onto a transfer medium, there is provided urge means for urging the transfer medium against the image carrier, and heating means disposed adjacent the urge means for heating the urge means substantially at the same time that the transfer medium is urged against the image carrier.
Inventors
- 👤 Wilhelm Knechtel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:35
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/14; G03G15/16; G03G15/1665; G03G15/167; G03G15/01; G03G15/0142; G03G15/0147; G03G15/0152; G03G15/0173; G03G15/20; G03G15/2003; G03G15/2014; G03G15/2017; G03G15/2032; G03G2215/00; G03G2215/01; G03G2215/0167; G03G2215/0174; G03G2215/018
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
96 words
A transfer-fixing device for transferring a developed image onto a transfer medium, said device comprising: an image carrier having a surface for carrying a developed image, said image carrier having a metallic base, an elastic layer of heat insulating material covering said metallic base and a heat-resistant layer covering said elastic layer and forming said surface; means for urging the transfer medium against said surface of said image carrier; and means for heating said urging means so that the transfer medium is in a heated condition at the time it is urged against said image carrier.
Claim 2
Dependent Claim
96 words
A transfer-fixing device for transferring a developed image onto a transfer medium, said device comprising: an image carrier having a surface for carrying a developed image, said image carrier having a metallic base, an elastic layer of heat insulating material covering said metallic base and a heat-resistant layer covering said elastic layer and forming said surface; means for urging the transfer medium against said surface of said image carrier; and means for heating said urging means so that the transfer medium is in a heated condition at the time it is urged against said image carrier.
Claim 3
Dependent Claim
23 words
A device according to claim 1, wherein said urging means is pivotally movable away from and toward said surface of said image carrier.
Claim 4
Dependent Claim
24 words
A device according to claim 2, wherein said urging means comprises a roller mounted for pivotal movement and having said heating means disposed therewithin.
Claim 5
Dependent Claim
25 words
A device according to claim 3, wherein said heating means disposed within said roller is fixedly mounted with respect to pivotal movement of said roller.
Claim 6
Dependent Claim
25 words
A device according to claim 1, wherein said image carrier further includes a thin metallic layer disposed between said elastic layer and said heat-resistant layer.
Claim 7
Dependent Claim
17 words
A device according to claim 5, wherein said thin metallic layer is a sheet of aluminum foil.
Claim 8
Dependent Claim
14 words
A device according to claim 1, wherein said metallic base is an aluminum cylinder.
Claim 9
Dependent Claim
17 words
A device according to claim 1, wherein said elastic layer is a layer of silicon crepe rubber.
Claim 10
Dependent Claim
14 words
A device according to claim 1, wherein said heat-resistant layer is a teflon layer.
References Cited (Backward Citations)
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US3666247A
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US3698314A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-05-11 | 1979-11-10 | 1980-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-05-11 | 1983-11-10 | 1984-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-05-11 | 1987-11-10 | 1988-05-11 | $7700.00 | Window Closed / Lapsed |