US4430406A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuser member
Assignee: NexPress Solutions LLC
•
Filing: 1981-10-22
•
Granted: 1984-02-07
•
Expires: 2001-10-22
Abstract
Abstract A fuser member has a composite layer including (1) a first layer of a first material which is an elastomer; (2) a second layer of a second material which is preferably a fluoroelastomer which is impervious to fuser oil absorbed by said first material; and (3) a layer intermediate to and continuous with the first and second layers in which the proportion of the first material to the second material gradually varies from substantially only the first material to substantially only the second material. Methods of making the fuser member by a spray technique and of using the fuser member to fuse toner images to a receiver are also disclosed.
Inventors
- 👤 James S. Newkirk
- 👤 Robert A. Wiederhold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:28
CPC Classifications
B; B05; B05D; B05D1/00; B05D1/34; G; G03; G03G; G03G15/00; G03G15/20; G03G15/2003; G03G15/2014; G03G15/2053; G03G15/2057; G03G2215/00; G03G2215/20; G03G2215/2003; G03G2215/2016; G03G2215/2025; G03G2215/2032; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24942; Y10T428/31504; Y10T428/3154; Y10T428/31544; Y10T428/31652; Y10T428/31667
Claims Analysis
Total Claims: 46
Claim 1
Independent Claim
79 words
The method of forming a member for fusing toner images to a receiver, comprising: spraying a base member with a first material which is an elastomer; after a layer of the first material has been formed continuing to spray said first material while spraying a gradually varying proportion of a second material with said first material until only said second material is sprayed; and continuing to spray said second material only to form a layer of said second material.
Claim 2
Independent Claim
79 words
The method of forming a member for fusing toner images to a receiver, comprising: spraying a base member with a first material which is an elastomer; after a layer of the first material has been formed continuing to spray said first material while spraying a gradually varying proportion of a second material with said first material until only said second material is sprayed; and continuing to spray said second material only to form a layer of said second material.
Claim 3
Independent Claim
110 words
The method of forming a member for fusing toner images to a receiver, comprising: spraying a base member with a first material which is an elastomer; after a layer of the first material has been formed continuing to spray said first material while spraying a gradually varying proportion of a second material with said first material until only said second material is sprayed, said second material being impervious to absorption of fuser oil which is absorbed by said first material; and continuing to spray only said second material to form a layer of said second material which acts as a barrier to absorption of fuser oil by said first material.
Claim 4
Independent Claim
110 words
The method of forming a member for fusing toner images to a receiver, comprising: spraying a base member with a first material which is an elastomer; after a layer of the first material has been formed continuing to spray said first material while spraying a gradually varying proportion of a second material with said first material until only said second material is sprayed, said second material being impervious to absorption of fuser oil which is absorbed by said first material; and continuing to spray only said second material to form a layer of said second material which acts as a barrier to absorption of fuser oil by said first material.
Claim 5
Dependent Claim
53 words
The method of claim 2 including continuing to spray said second material while simultaneously spraying a gradually varying proportion of a third material which prevents offset of toner thereto; and continuing to spray only said third material to form a layer thereof which contacts a toner image to be fused to a receiver.
Claim 6
Dependent Claim
12 words
The method of claim 2 wherein said second material is an elastomer.
Claim 7
Dependent Claim
16 words
The method of claim 2 wherein said first and second materials are high temperature resistant elastomers.
Claim 8
Independent Claim
25 words
The method of claims 2, 3, 4 or 5 wherein said first material is a silicone material and said second material is a fluoropolymeric-based material.
Claim 9
Dependent Claim
28 words
The method of claim 5 wherein said first material is a silicone elastomer and said second material is a fluoroelastomer including fluorosilicone elastomers and vinylidene-fluoride based fluoropolymeric elastomers.
Claim 10
Dependent Claim
32 words
The method of claim 7 wherein said second material is selected from the group consisting of the copolymer of vinylidene fluoride and hexafluoropropylene and the terpolymer of vinylidene fluoride, hexafluoropropylene and tetrafluoroethylene.
Claim 11
Dependent Claim
21 words
The method of claim 3 wherein said first and third material comprise silicone elastomer and said second material comprises a fluoroelastomer.
Claim 12
Dependent Claim
14 words
The method of claim 9 wherein said fluoroelastomer comprises a vinylidene-fluoride based fluoropolymeric elastomer.
Claim 13
Independent Claim
23 words
The method of claims 1 or 2 wherein said member comprises a roller and includes rotating said roller while spraying said materials thereon.
Claim 14
Independent Claim
33 words
The method of claims 1 or 2 wherein said second material is sprayed in a gradually increasing proportion of said second material to said first material until only said second material is sprayed.
Claim 15
Independent Claim
24 words
The method of claims 4, 5, 7, 8, 9, or 10 including curing said member after completion of said spraying of said elastomer materials.
Claim 16
Independent Claim
39 words
The method of claims 4, 5, 7, 8, 9, or 10 wherein prior to spraying said first and second elastomer materials are respectively dissolved in the same solvent or solvents or in solvents in which both elastomers are soluble.
Claim 17
Dependent Claim
79 words
A member for fusing toner images to a receiver comprising: a composite layer including: (1) a first layer of a first material which is an elastomer; (2) a second layer of a second material different from the first material; and (3) a layer intermediate to and continuous with said first and second layers in which the proportion of the first material to the second material gradually varies from substantially only the first material to substantially only the second material.
Claim 18
Dependent Claim
79 words
A member for fusing toner images to a receiver comprising: a composite layer including: (1) a first layer of a first material which is an elastomer; (2) a second layer of a second material different from the first material; and (3) a layer intermediate to and continuous with said first and second layers in which the proportion of the first material to the second material gradually varies from substantially only the first material to substantially only the second material.
Claim 19
Dependent Claim
89 words
A member for fusing toner images to a receiver comprising: a composite layer including: (1) a first layer of a first material which is an elastomer; (2) a second layer of a second material which is resistant to absorption of fuser oil which is absorbed by said first material; and (3) a layer intermediate to and continuous with said first and second layers in which the proportion of the first material to the second material gradually varies from substantially only the first material to substantially only the second material.
Claim 20
Dependent Claim
89 words
A member for fusing toner images to a receiver comprising: a composite layer including: (1) a first layer of a first material which is an elastomer; (2) a second layer of a second material which is resistant to absorption of fuser oil which is absorbed by said first material; and (3) a layer intermediate to and continuous with said first and second layers in which the proportion of the first material to the second material gradually varies from substantially only the first material to substantially only the second material.
Claim 21
Dependent Claim
12 words
The member of claim 16 wherein said second material is an elastomer.
Claim 22
Dependent Claim
16 words
The member of claim 16 wherein said first and second materials are high temperature resistant elastomers.
Claim 23
Dependent Claim
24 words
The member of claims 16, 17 or 18 wherein said first material is a silicone material and said second material is a fluoropolymeric-based material.
Claim 24
Dependent Claim
33 words
The member of claim 18 wherein said first material is a silicone elastomer and said secnd material is a fluoroelastomer selected from the group consisting of fluorosilicone elastomer and vinylidene-fluoride based fluoropolymeric elastomers.
Claim 25
Dependent Claim
62 words
The member of claim 16 wherein said composite layer includes a third layer of a third material which prevents offset of toner thereto and a layer intermediate to and continuous with said second and third layers in which the proportion of the second material to the third material gradually varies from substantially only the second material to substantially only the third material.
Claim 26
Dependent Claim
15 words
The member of claim 21 wherein said toner offset preventing material is a silicone elastomer.
Claim 27
Dependent Claim
22 words
The member of claim 16 wherein the thickness of said first layer is substantially greater than the thickness of said second layer.
Claim 28
Dependent Claim
38 words
The member of claims 15 or 16 wherein the proportion of the first material to the second material in said intermediate layer gradually increases from substantially none of said second material to substantially all of said second material.
Claim 29
Dependent Claim
19 words
The member of claims 15, 16, 17, 18, 20, 21, 22 or 23 wherein said member has been cured.
Claim 30
Dependent Claim
33 words
The member of claims 17, 18 or 20 wherein prior to spraying said first and second elastomer materials are respectively dissolved in the same solvent or solvents in which both elastomers are solvent.
Claim 31
Dependent Claim
96 words
A fuser roller for fusing toner images to a receiver comprising: a cylindrical core; a composite layer on said core including: (1) a first layer of a first material which is an elastomer; (2) a second layer of a second material which is resistant to absorption of release oil which is absorbed by said first materal; and (3) a layer intermediate to and continuous with said first and second layers in which the proportion of the first material to the second material gradually varies from substantially only the first material to substantially only the second material.
Claim 32
Dependent Claim
96 words
A fuser roller for fusing toner images to a receiver comprising: a cylindrical core; a composite layer on said core including: (1) a first layer of a first material which is an elastomer; (2) a second layer of a second material which is resistant to absorption of release oil which is absorbed by said first materal; and (3) a layer intermediate to and continuous with said first and second layers in which the proportion of the first material to the second material gradually varies from substantially only the first material to substantially only the second material.
Claim 33
Dependent Claim
34 words
The roller of claim 27 including a second roller forming a nip with said first roller through which is passed a receiver carrying at least one toner image to be fused by said rollers.
Claim 34
Dependent Claim
29 words
The roller of claim 27 wherein said core comprises a cylindrical shell of heat conductive or heat transmissive material and inluding a source of heat located within said shell.
Claim 35
Dependent Claim
12 words
The roller of claim 27 wherein said second material is an elastomer.
Claim 36
Dependent Claim
16 words
The roller of claim 27 wherein said first and second materials are high temperature resistant elastomers.
Claim 37
Dependent Claim
24 words
The roller of claims 27, 30 or 31 wherein said first material is a silicone elastomer and said second material is a fluoropolymeric-based elastomer.
Claim 38
Dependent Claim
33 words
The roller of claim 31 wherein said first material is a silicone elastomer and said second material is a fluoroelastomer selected from the group consisting of fluorosilicone elastomer and vinylidene-fluoride based fluoropolymeric elastomers.
Claim 39
Dependent Claim
66 words
The roller of claim 27 wherein said composite layer includes a third layer of a third material which is an elastomer which prevents offset of toner thereto and a layer intermediate to and continuous with said second and third layers in which the proportion of the second material to the third material gradually varies from substantially only the second material to substantially only the third material.
Claim 40
Dependent Claim
24 words
The roller of claim 34 wherein said first and third materials are silicone elastomers and said second material is a vinylidene-fluoride based fluoropolymeric elastomer.
Claim 41
Dependent Claim
33 words
The fuser roller of claim 27 wherein the proportion of the first materal in said intermediate layer gradually increases from substantially none of said second material to substantially all of said second material.
Claim 42
Dependent Claim
22 words
The fuser roller of claims 27, 28, 29, 30, 31, 33, 34, 35 or 36 wherein said fuser roller has been cured.
Claim 43
Dependent Claim
38 words
The fuser roller of claims 30, 31, 33 or 35 wherein prior to spraying said first and second elastomer materials are respectively dissolved in the same solvent or solvents or in solvents in which both elastomers are soluble.
Claim 44
Independent Claim
116 words
The method of fusing a heat-softenable toner image to a receiver which comprises pressure contacting a heat-softenable toner image carried by a receiver with a fusing member at a temperature effective to fuse said toner image to said receiver member, said fuser member having a composite layer including: (1) a first layer of a first material which is a high-temperature resistant elastomer; (2) a second layer of a second material which is a high-temperature resistant elastomer; and (3) a layer intermediate to and continuous with said first and second layers in which the proportion of the first material to the second material gradually varies from substantially only said first material to substantially only said second material.
Claim 45
Independent Claim
116 words
The method of fusing a heat-softenable toner image to a receiver which comprises pressure contacting a heat-softenable toner image carried by a receiver with a fusing member at a temperature effective to fuse said toner image to said receiver member, said fuser member having a composite layer including: (1) a first layer of a first material which is a high-temperature resistant elastomer; (2) a second layer of a second material which is a high-temperature resistant elastomer; and (3) a layer intermediate to and continuous with said first and second layers in which the proportion of the first material to the second material gradually varies from substantially only said first material to substantially only said second material.
Claim 46
Dependent Claim
13 words
The method of claim 39 including applying fuser oil to said fuser member.
References Cited (Backward Citations)
AU136080B2
Cited
US2852415A
Cited
US3009209A
Cited
US3020182A
Cited
US3291466A
Cited
US3449548A
Cited
US3452181A
Cited
US3849128A
Cited
US3852861A
Cited
US3776760A
Cited
GB1456239A
Cited
GB1456237A
Cited
GB1456238A
Cited
US3967042A
Cited
US3849062A
Cited
US3988817A
Cited
USB425770I5
Cited
US3883293A
Cited
UST934010I4
Cited
US3912901A
Cited
US3948214A
Cited
US4098631A
Cited
US4092953A
Cited
US4064313A
Cited
US4375505A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-02-06 | 1987-08-08 | 1988-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-02-06 | 1991-08-08 | 1992-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-02-06 | 1995-08-08 | 1996-02-07 | $7700.00 | Window Closed / Lapsed |