US4078286A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat fixing roll for electrophotographic duplicators
Assignee: Xerox Ltd
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Filing: 1977-03-14
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Granted: 1978-03-14
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Expires: 1997-03-14
Abstract
Abstract Silicone rubber is employed as an outer coating material on a fuser member and is applied to the base member by means of a novel construction which prevents the separation of the outer silicone rubber coating from the roll even when silicone oil is applied thereto. The fuser member comprises a base member, a layer of a heat-resistant resin formed on the base member and a layer of a silicone rubber formed on the heat-resistant resin layer, the silicone rubber being vulcanized after the formation of the layer of silicone rubber on the resin layer. A primer layer may be used between the heat-resistant resin layer and the silicone rubber layer.
Inventors
- 👤 Koichi Takiguichi
- 👤 Teruhiko Itami
- 👤 Shigeru Sadamatsu
- 👤 Ashihiko Yamada
- 👤 Masakatsu Kimura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:15
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/20; G03G15/2003; G03G15/2014; G03G15/2053; G03G15/2057
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
46 words
A fuser member for pressure fusing electrostatic toner images at elevated temperatures comprising a base member, a layer of a heat-resistant resin material coated on the base member and at least one outer layer of a silicone rubber coated upon the layer of heat-resistant resin material.
Claim 2
Dependent Claim
46 words
A fuser member for pressure fusing electrostatic toner images at elevated temperatures comprising a base member, a layer of a heat-resistant resin material coated on the base member and at least one outer layer of a silicone rubber coated upon the layer of heat-resistant resin material.
Claim 3
Dependent Claim
25 words
The fuser member of claim 1 wherein the silicone rubber outer layer is vulcanized after it is placed upon the layer of heat-resistant resin material.
Claim 4
Dependent Claim
15 words
The fuser member of claim 1 wherein the heat-resistant resin material is a polyamide resin.
Claim 5
Dependent Claim
15 words
The fuser member of claim 1 wherein the heat-resistant resin material is a polyamideimide resin.
Claim 6
Dependent Claim
15 words
The fuser member of claim 1 wherein the heat-resistant resin material is a polyimide resin.
Claim 7
Dependent Claim
43 words
The fuser member of claim 1 further comprising a layer of primer material between the heat-resistant resin material and the silicone rubber layer, the primer material being one which promotes the adhesion of the silicone rubber to the layer of heat-resistant resin material.
Claim 8
Dependent Claim
21 words
The fuser member of claim 2 wherein the silicone rubber vulcanized upon the heat-resistant resin material is a RTV silicone rubber.
Claim 9
Dependent Claim
21 words
The fuser member of claim 2 wherein the silicone rubber vulcanized upon the heat-resistant resin material is a HTV silicone rubber.
Claim 10
Dependent Claim
21 words
The fuser member of claim 2 wherein the silicone rubber vulcanized upon the heat-resistant resin material is a LTV silicone rubber.
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) | 1981-03-13 | 1981-09-12 | 1982-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-03-13 | 1985-09-12 | 1986-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-03-13 | 1989-09-12 | 1990-03-14 | $7700.00 | Window Closed / Lapsed |