US5285248A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fixing device having silicone rubber sprayed with phenyl type silicone oil
Assignee: Canon Inc
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Filing: 1990-11-29
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Granted: 1994-02-08
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Expires: 2010-11-29
Abstract
Abstract This invention relates to a fixing device with a heat rotatory body heated by a heating source having a surface layer of a silicone rubber; a back-up rotatory body which is in pressure contact with the heated rotatory body; an oil feeding apparatus which feeds silicone oil to the heated rotatory surface; the pair of rotatory bodies performing fixing while conveying the supporting material having unfixed images supported thereon sandwiched therebetween; and the feeding oil being a phenyl type silicone oil and the silicone rubber surface being impregnated with dimethylsilicone oil.
Inventors
- 👤 Takeshi Menjo
- 👤 Masaaki Sakurai
- 👤 Tatsuo Takeuchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:46
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/20; G03G15/2003; G03G15/2014; G03G15/2053; G03G15/2057; G03G11/00; G03G15/2017; G03G15/2025; G03G2215/00; G03G2215/20; G03G2215/2003; G03G2215/2048; G03G2215/2051; G03G2215/2054
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
59 words
A fixing device comprising: a heat rotatable member having a surface layer comprising a silicone rubber; a heating source for heating said heat rotatable member; and oil application means for applying silicone oil onto a surface of said heat rotatable member; wherein said silicone oil is phenyl silicone oil and the silicone rubber is impregnated with a dimethylsilicone oil.
Claim 2
Dependent Claim
59 words
A fixing device comprising: a heat rotatable member having a surface layer comprising a silicone rubber; a heating source for heating said heat rotatable member; and oil application means for applying silicone oil onto a surface of said heat rotatable member; wherein said silicone oil is phenyl silicone oil and the silicone rubber is impregnated with a dimethylsilicone oil.
Claim 3
Dependent Claim
19 words
A fixing device according to claim 1, wherein said surface layer is methyl type or methylvinyl type silicone rubber.
Claim 4
Dependent Claim
15 words
A fixing device according to claim 2, wherein said silicone oil is methylphenyl silicone oil.
Claim 5
Dependent Claim
20 words
A fixing device according to claim 3, wherein moles of said methylphenyl silicone oil are 5 mole % or more.
Claim 6
Dependent Claim
19 words
A fixing device according to claim 1, wherein the viscosity of said silicone oil is 10 to 10000 cs.
Claim 7
Dependent Claim
19 words
A fixing device according to claim 1, wherein the viscosity of said impregnated oil is 10 to 1000 cs.
Claim 8
Dependent Claim
22 words
A fixing device according to claim 1, wherein the viscosity of said impregnated oil is lower than that of said silicone oil.
Claim 9
Dependent Claim
25 words
A fixing device according to claim 1, wherein the amount of said dimethylsilicone oil impregnated is 1 to 50% by weight of said silicone rubber.
Claim 10
Dependent Claim
42 words
A fixing device according to claim 1, wherein said fixing is used for a full-color image forming device which laminates toner images with different colors on a supporting material, and said fixing device mixes colors of the toner images of multiple layers.
Claim 11
Dependent Claim
79 words
A fixing device comprising: a heat rotatable member having a surface layer comprising a silicone rubber; a heating source for heating said heat rotatable member; and oil application means for applying a silicone oil onto a surface of said heat rotatable member; wherein the silicone oil is a phenyl silicone oil, and the silicone rubber is a methyl type or methylvinyl type silicone rubber with a saturated swelling amount of 0% or less based on the phenyl silicone oil.
Claim 12
Dependent Claim
79 words
A fixing device comprising: a heat rotatable member having a surface layer comprising a silicone rubber; a heating source for heating said heat rotatable member; and oil application means for applying a silicone oil onto a surface of said heat rotatable member; wherein the silicone oil is a phenyl silicone oil, and the silicone rubber is a methyl type or methylvinyl type silicone rubber with a saturated swelling amount of 0% or less based on the phenyl silicone oil.
Claim 13
Dependent Claim
20 words
A fixing device according to claim 10, wherein moles of said methylphenyl silicone oil are 5 mole % or more.
Claim 14
Dependent Claim
19 words
A fixing device according to claim 10, wherein the viscosity of said silicone oil is 10 to 10000 cs.
Claim 15
Dependent Claim
42 words
A fixing device according to claim 10, wherein said fixing is used for a full-color image forming device which laminates toner images with different colors on a supporting material, and said fixing device mixes colors of the toner images of multiple layers.
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) | 1997-02-07 | 1997-08-09 | 1998-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-02-07 | 2001-08-09 | 2002-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-02-07 | 2005-08-09 | 2006-02-08 | $7700.00 | Window Closed / Lapsed |