US3933566A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tires, etc.
Assignee: BUCHHOLZER FRANCES S
•
Filing: 1974-03-25
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Granted: 1976-01-20
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Expires: 1994-03-25
Abstract
Abstract The inner surface of a green tire provided with an air-sealing liner, is cured or partially cured to produce a steam- and water-resistant surface, and the tire after such treatment is cured in a usual press without an air-bag or bladder. One or more plies of a tire, usually the outer fabric plies, are partially cured before assembly in the tire, to insure that plies so located are cured, without over-curing inner and outer portions of the tire. New tires are made by placing a carcass, whether green or partially cured, in a mold and extruding rubber over the outer surface of this carcass to fill the mold, and then giving the final cure to the resulting tire. Tires are retreaded by applying ribbons of tread stock over the carcass prepared in any conventional manner, and then completing the cure without the use of a mold. Retreaded tires are cured by placing a carcass prepared in any conventional manner, in a mold, extruding tread stock into the mold around the carcass, and the curing. A tire, the inner surface of which is provided with a non-cured liner reinforced with a non-wicking fabric is cured without an air-bag or bladder. Curing or partial curing may be effected by electron irradiation. Progressive irradiation is disclosed by which an object is repeatedly irradiated to attain a desired cure. Other methods of curing may be preferable in some operations.
Inventors
- 👤 Theophilus K. Seiberling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:08
CPC Classifications
B; B29; B29D; B29D30/00; B29D30/0005; B29D30/06; B29D30/0601; B29D30/0633; B29C; B29C2791/00; B29C2791/001; B29C35/00; B29C35/02; B29C35/08; B29K; B29K2105/00; B29K2105/24; B29K2105/243; B29L; B29L2030/00; B29L2030/008; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24942
Claims Analysis
Total Claims: 45
Claim 1
Independent Claim
103 words
The method of making a liner for a pneumatic tire which liner is composed of a plurality of layers which method comprises, without completely curing the outer surface of the liner which is the surface adapted to contact the carcass of the tire, curing or only partially curing by irradiation at least a portion of one layer of the liner and thereby rearranging the molecular structure thereof, all without curing the inner layer which is the layer adapted to face toward subsequent tire-inflating fluid, which portion is substantially coextensive with the layer and thereby rearranging the molecular structure thereof, and laminating said layers.
Claim 2
Independent Claim
103 words
The method of making a liner for a pneumatic tire which liner is composed of a plurality of layers which method comprises, without completely curing the outer surface of the liner which is the surface adapted to contact the carcass of the tire, curing or only partially curing by irradiation at least a portion of one layer of the liner and thereby rearranging the molecular structure thereof, all without curing the inner layer which is the layer adapted to face toward subsequent tire-inflating fluid, which portion is substantially coextensive with the layer and thereby rearranging the molecular structure thereof, and laminating said layers.
Claim 3
Dependent Claim
17 words
The method of claim 1 wherein one layer is composed of a rubber not curable by irradiation.
Claim 4
Dependent Claim
49 words
The method of claim 1 wherein one layer is composed of a rubber not curable by electron irradiation and another layer is composed of a material curable by such irradiation, which method comprises curing or partially curing said latter layer by irradiation and thereby rearranging the molecular structure thereof.
Claim 5
Dependent Claim
15 words
The method of claim 1 wherein said inner layer is composed of a butyl rubber.
Claim 6
Independent Claim
90 words
The method of making a liner for a pneumatic tire which tire is to be cured by steam and/or hot water, which liner is composed of a plurality of layers, which method comprises curing or partially curing at least a portion of only one layer by irradiation which rearranges the molecular structure of the rubber therein, which portion is substantially coextensive with the other layers and laminating said layers while providing the outer and inner surfaces of the liner with rubber curable by the process used in curing the tire.
Claim 7
Independent Claim
90 words
The method of making a liner for a pneumatic tire which tire is to be cured by steam and/or hot water, which liner is composed of a plurality of layers, which method comprises curing or partially curing at least a portion of only one layer by irradiation which rearranges the molecular structure of the rubber therein, which portion is substantially coextensive with the other layers and laminating said layers while providing the outer and inner surfaces of the liner with rubber curable by the process used in curing the tire.
Claim 8
Independent Claim
97 words
The method of making a liner for a pneumatic tire which liner includes an inner layer of a butyl rubber which is adapted to face toward subsequent tire-inflating fluid, the outer layer of the liner being adapted to contact the carcass of the tire and being composed of a rubber curable by irradiation which rearranges the molecular structure thereof, which method comprises curing by such irradiation the inner portion of said outer layer and laminating to the layer of rubber curable by irradiation a layer of a butyl rubber which forms the inner layer of the liner.
Claim 9
Independent Claim
97 words
The method of making a liner for a pneumatic tire which liner includes an inner layer of a butyl rubber which is adapted to face toward subsequent tire-inflating fluid, the outer layer of the liner being adapted to contact the carcass of the tire and being composed of a rubber curable by irradiation which rearranges the molecular structure thereof, which method comprises curing by such irradiation the inner portion of said outer layer and laminating to the layer of rubber curable by irradiation a layer of a butyl rubber which forms the inner layer of the liner.
Claim 10
Independent Claim
98 words
The method of making a liner for a pneumatic tire which liner is composed of a plurality of layers which method comprises curing or partially curing at least a portion of one layer by irradaition which rearranges the molecular structure of the rubber therein, which portion is substantially coextensive with the layer, and forming the inner surface of the liner which is the surface which is adapted to face toward subsequent tire-inflating fluid, by laminating another layer to said one layer without completely curing the outer surface of the liner which surface is adapted to contact the carcass.
Claim 11
Independent Claim
98 words
The method of making a liner for a pneumatic tire which liner is composed of a plurality of layers which method comprises curing or partially curing at least a portion of one layer by irradaition which rearranges the molecular structure of the rubber therein, which portion is substantially coextensive with the layer, and forming the inner surface of the liner which is the surface which is adapted to face toward subsequent tire-inflating fluid, by laminating another layer to said one layer without completely curing the outer surface of the liner which surface is adapted to contact the carcass.
Claim 12
Dependent Claim
17 words
The method of claim 7 wherein a layer of butyl rubber is laminated to said one layer.
Claim 13
Independent Claim
78 words
The method of making a liner for a pneumatic tire which liner for a pneumatic tire which liner is composed of a plurality of layers and includes an inner layer of a butyl rubber which layer is adapted to face toward subsequent tire-inflating fluid, which method comprises curing or partially curing at least a portion of one layer by irradiation which rearranges the molecular structure thereof, which portion is substantially coextensive with the layer, and laminating the layers.
Claim 14
Independent Claim
78 words
The method of making a liner for a pneumatic tire which liner for a pneumatic tire which liner is composed of a plurality of layers and includes an inner layer of a butyl rubber which layer is adapted to face toward subsequent tire-inflating fluid, which method comprises curing or partially curing at least a portion of one layer by irradiation which rearranges the molecular structure thereof, which portion is substantially coextensive with the layer, and laminating the layers.
Claim 15
Independent Claim
59 words
The method of making a liner for a pneumatic tire which liner is composed of a plurality of layers which method comprises curing or only partially curing at least a portion of only one layer other than the inner and outer surfaces of the liner by irradiation which rearranges the molecular structure of the layer, and laminating the layers.
Claim 16
Independent Claim
59 words
The method of making a liner for a pneumatic tire which liner is composed of a plurality of layers which method comprises curing or only partially curing at least a portion of only one layer other than the inner and outer surfaces of the liner by irradiation which rearranges the molecular structure of the layer, and laminating the layers.
Claim 17
Dependent Claim
17 words
The method of claim 10 wherein one layer is composed of a rubber not curable by irradiation.
Claim 18
Independent Claim
97 words
The method of making a liner for a pneumatic tire which liner is composed of a plurality of layers, which method comprises laminating said layers and providing one layer composed of a rubber which is not curable by electron irradiation and a layer of other rubber which can be so cured, one surface of said latter layer forming the outer surface of the liner which is adapted to contact the carcass of the tire, and without completely curing said surface, curing or partially curing said rubber curable by irradiation which rearranges the molecular structure of the rubber.
Claim 19
Independent Claim
97 words
The method of making a liner for a pneumatic tire which liner is composed of a plurality of layers, which method comprises laminating said layers and providing one layer composed of a rubber which is not curable by electron irradiation and a layer of other rubber which can be so cured, one surface of said latter layer forming the outer surface of the liner which is adapted to contact the carcass of the tire, and without completely curing said surface, curing or partially curing said rubber curable by irradiation which rearranges the molecular structure of the rubber.
Claim 20
Independent Claim
82 words
The method of making a liner for a pneumatic tire, which liner is composed of a plurality of layers, which method comprises curing or partially curing at least a portion of the liner by irradiation which rearranges the molecular structure thereof without curing the inner layer which is adapted to face toward subsequent tire-inflating fluid, which portion is substantially coextensive with the layer, and without completely curing the outer surface of the liner which is opposite said layer, and laminating the layers.
Claim 21
Independent Claim
82 words
The method of making a liner for a pneumatic tire, which liner is composed of a plurality of layers, which method comprises curing or partially curing at least a portion of the liner by irradiation which rearranges the molecular structure thereof without curing the inner layer which is adapted to face toward subsequent tire-inflating fluid, which portion is substantially coextensive with the layer, and without completely curing the outer surface of the liner which is opposite said layer, and laminating the layers.
Claim 22
Dependent Claim
35 words
The method of claim 13 in which the inner layer which is the layer which is not cured and is the layer adapted to face toward subsequent tire-inflating fluid, is composed of a butyl rubber.
Claim 23
Dependent Claim
121 words
The process of producing a laminated liner for a pneumatic tire which tire is to be cured in a conventional manner, which lamination comprises a first rubber layer which can be cured by electron irradiation and a second rubber layer which forms the inner surface of the liner which is the surface which is adapted to face toward subsequent tire-inflating fluid and which cannot be so cured but is curable by the method of curing the tire, which process comprises curing or partially curing the first layer by irradiation which rearranges the molecular structure of the layer, and laminating the layers, all without completely curing the outer surface of the liner which is adapted to contact the carcass of the tire.
Claim 24
Dependent Claim
121 words
The process of producing a laminated liner for a pneumatic tire which tire is to be cured in a conventional manner, which lamination comprises a first rubber layer which can be cured by electron irradiation and a second rubber layer which forms the inner surface of the liner which is the surface which is adapted to face toward subsequent tire-inflating fluid and which cannot be so cured but is curable by the method of curing the tire, which process comprises curing or partially curing the first layer by irradiation which rearranges the molecular structure of the layer, and laminating the layers, all without completely curing the outer surface of the liner which is adapted to contact the carcass of the tire.
Claim 25
Dependent Claim
14 words
The process of claim 15 in which said second layer is a butyl rubber.
Claim 26
Independent Claim
62 words
The method of making a liner for a pneumatic tire, which liner is composed of a plurality of layers, which method comprises curing or partially curing at least a portion of only one layer of the liner by irradiation which rearranges the molecular structure of the layer and laminating the layers, all without curing the inner and outer surfaces of the liner.
Claim 27
Independent Claim
62 words
The method of making a liner for a pneumatic tire, which liner is composed of a plurality of layers, which method comprises curing or partially curing at least a portion of only one layer of the liner by irradiation which rearranges the molecular structure of the layer and laminating the layers, all without curing the inner and outer surfaces of the liner.
Claim 28
Independent Claim
63 words
The method of making a liner for a pneumatic tire which liner is composed of a plurality of layers, which method comprises curing or partially curing by irradiation at least only one face of a layer to which face is laminated a second layer, which irradiation rearranges the molecular structure of the layer, laminating the layers and making a band of the liner.
Claim 29
Independent Claim
63 words
The method of making a liner for a pneumatic tire which liner is composed of a plurality of layers, which method comprises curing or partially curing by irradiation at least only one face of a layer to which face is laminated a second layer, which irradiation rearranges the molecular structure of the layer, laminating the layers and making a band of the liner.
Claim 30
Dependent Claim
14 words
The method of claim 18 wherein the said second layer is a butyl rubber.
Claim 31
Dependent Claim
26 words
The method of claim 18 wherein the said second layer forms the inner layer of the liner which is adapted to face toward subsequent tire-inflating fluid.
Claim 32
Independent Claim
110 words
The method of making a liner for a pneumatic tire which tire is to be cured by a conventional method, the outer layer of which liner is adapted to contact the carcass of the tire and is curable by electron irradiation and the inner layer of which liner is adapted to face toward subsequent tire-inflating fluid and is composed of a butyl rubber, which method comprises curing or partially curing the inner portion of said outer layer by irradiation which rearranges the molecular structure thereof and laminating the layers, all without completely curing the outer surface of the liner, which is the surface which is adapted to contact the carcass.
Claim 33
Independent Claim
110 words
The method of making a liner for a pneumatic tire which tire is to be cured by a conventional method, the outer layer of which liner is adapted to contact the carcass of the tire and is curable by electron irradiation and the inner layer of which liner is adapted to face toward subsequent tire-inflating fluid and is composed of a butyl rubber, which method comprises curing or partially curing the inner portion of said outer layer by irradiation which rearranges the molecular structure thereof and laminating the layers, all without completely curing the outer surface of the liner, which is the surface which is adapted to contact the carcass.
Claim 34
Dependent Claim
14 words
The method of claim 1 in which the irradiation is effected by electron irradiation.
Claim 35
Dependent Claim
14 words
The method of claim 7 in which the irradiation is affected by electron irradiation.
Claim 36
Dependent Claim
14 words
The method of claim 9 in which the irradiation is effected by electron irradiation.
Claim 37
Dependent Claim
14 words
The method of claim 10 in which the irradiation is effected by electron irradiation.
Claim 38
Dependent Claim
14 words
The method of claim 12 in which the irradiation is effected by electron irradiation.
Claim 39
Dependent Claim
14 words
The method of claim 13 in which the irradiation is effected by electron irradiation.
Claim 40
Dependent Claim
15 words
The method of claim 15 in which the first rubber is cured by electron irradiation.
Claim 41
Dependent Claim
14 words
The method of claim 17 in which the irradiation is effected by electron irradiation.
Claim 42
Dependent Claim
14 words
The method of claim 18 in which the irradiation is effected by electron irradiation.
Claim 43
Dependent Claim
14 words
The method of claim 21 in which the irradiation is effected by electron irradiation.
Claim 44
Independent Claim
85 words
The method of making a liner for a pneumatic tire, which liner is composed of a plurality of layers, which method comprises curing or partially curing at least a portion of the liner by irradiation which rearranges the molecular structure thereof and which portion is substantially coextensive with the liner, without curing the layer which is adapted to face toward subsequent tire-inflating fluid and without curing the surface of the liner which is adapted to contact the carcass of the tire, and laminating the layers.
Claim 45
Independent Claim
85 words
The method of making a liner for a pneumatic tire, which liner is composed of a plurality of layers, which method comprises curing or partially curing at least a portion of the liner by irradiation which rearranges the molecular structure thereof and which portion is substantially coextensive with the liner, without curing the layer which is adapted to face toward subsequent tire-inflating fluid and without curing the surface of the liner which is adapted to contact the carcass of the tire, and laminating the 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) | 1979-01-19 | 1979-07-21 | 1980-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-01-19 | 1983-07-21 | 1984-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-01-19 | 1987-07-21 | 1988-01-20 | $7700.00 | Window Closed / Lapsed |