Patent US3887750A successfully refreshed from Google Patents.
US3887750A
Expired / Lapsed
US
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Compressible printing blanket
Assignee: Day International Inc
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Filing: 1973-01-08
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Granted: 1975-06-03
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Expires: 1993-01-08
Abstract
Abstract A compressible printing blanket and method of manufacture, in which the blanket has at least one base fabric layer, an elastomeric face, and an intermediate compressible layer. The compressible layer is formed of an elastomeric matrix into which hollow fibers have been incorporated. These fibers create unconnected voids which form a cellular layer.
Inventors
- 👤 John C Duckett
- 👤 Wayne W Easley
- 👤 William T Wickham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:56
CPC Classifications
B; B41; B41N; B41N10/00; B41N10/02; B41N10/04; B41N2210/00; B41N2210/04; B41N2210/14; Y; Y10; Y10S; Y10S264/00; Y10S264/06; Y10S428/00; Y10S428/903; Y10S428/909; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/249971; Y10T428/249972; Y10T428/29; Y10T428/2913; Y10T428/2973; Y10T428/2975; Y10T442/00; Y10T442/30; Y10T442/3065; Y10T442/3089; Y10T442/3106; Y10T442/3325; Y10T442/335; Y10T442/3472; Y10T442/3504; Y10T442/3512
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
62 words
A LAMINATED PRINTING BLANKET COMPRISING AT LEAST ONE FABRIC BASE PLY, A SURFACE LAYER, AND COMPRESSIBLE INTERMEDIATE LAYER SAID INTERMEDIATE LAYER COMPRISING AN ELASTOMERIC MATRIX HAVING UNCONNECTED VOIDS UNIFORMLY DISTRIBUTED THERETHROUGH, SAID VOIDS DEFINED BY DISCRETE HOLLOW FIBERS HAVING THIN ELASTIC WALLS MADE OF VINYLIDENE CHLORIDE-ACRYLONITRILE COPOLYMER WHICH IS COMPATIBLE WITH SAID MATRIX MATERIAL AND CAPABLE OF BEING BONDED THERETO UPON CURING.
Claim 2
Dependent Claim
62 words
A LAMINATED PRINTING BLANKET COMPRISING AT LEAST ONE FABRIC BASE PLY, A SURFACE LAYER, AND COMPRESSIBLE INTERMEDIATE LAYER SAID INTERMEDIATE LAYER COMPRISING AN ELASTOMERIC MATRIX HAVING UNCONNECTED VOIDS UNIFORMLY DISTRIBUTED THERETHROUGH, SAID VOIDS DEFINED BY DISCRETE HOLLOW FIBERS HAVING THIN ELASTIC WALLS MADE OF VINYLIDENE CHLORIDE-ACRYLONITRILE COPOLYMER WHICH IS COMPATIBLE WITH SAID MATRIX MATERIAL AND CAPABLE OF BEING BONDED THERETO UPON CURING.
Claim 3
Dependent Claim
63 words
A laminated printing blanket comprising at least one fabric base ply, a surface layer, and a compressible intermediate layer, said intermediate layer comprising an elastomeric matrix having unconnected voids uniformly distributed therethrough, said voids defined by discrete hollow fibers having thin elastic walls made of vinylidene chloride-acrylonitrile copolymer which is compatible with said matrix material and capable of being bonded thereto upon curing.
Claim 4
Dependent Claim
63 words
A laminated printing blanket comprising at least one fabric base ply, a surface layer, and a compressible intermediate layer, said intermediate layer comprising an elastomeric matrix having unconnected voids uniformly distributed therethrough, said voids defined by discrete hollow fibers having thin elastic walls made of vinylidene chloride-acrylonitrile copolymer which is compatible with said matrix material and capable of being bonded thereto upon curing.
Claim 5
Dependent Claim
20 words
The blanket of claim 1 having a compression of 0.004 inch to 0.011 inch under a pressure of 125 p.s.i.
Claim 6
Dependent Claim
28 words
The blanket of claim 1 in which said fibers are present in the ratio of 5 to 25 parts by weight per 100 parts of elastomeric matrix material.
Claim 7
Dependent Claim
17 words
The blanket of claim 1 in which said fibers have a diameter of 0.01 to 0.1 millimeter.
Claim 8
Dependent Claim
16 words
The blanket of claim 1 in which said fibers have an average diameter of 0.03 millimeter.
Claim 9
Dependent Claim
36 words
The blanket of claim 1 in which said fibers have an average diameter of 0.03 millimeter, and are present in the ratio of 5 to 25 parts by weight per 100 parts of elastomeric matrix material.
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) | 1978-06-02 | 1978-12-02 | 1979-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-02 | 1982-12-02 | 1983-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-02 | 1986-12-02 | 1987-06-03 | $7700.00 | Window Closed / Lapsed |