US4196248A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Felt having reinforced crosswise yarns
Assignee: Albany International Corp
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Filing: 1974-09-09
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Granted: 1980-04-01
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Expires: 1994-09-09
Abstract
Abstract A papermakers felt utilizing reinforced yarns and suitable weaves to provide a simulated beam structure in the crosswise direction of the fabric.
Inventors
- 👤 William H. Dutt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:39
CPC Classifications
B; B29; B29D; B29D29/00; D; D21; D21F; D21F1/00; D21F1/0027; D21F1/0036; Y; Y10; Y10T; Y10T442/00; Y10T442/20; Y10T442/2008; Y10T442/30; Y10T442/3065; Y10T442/3073
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
72 words
A papermakers felt which comprises a woven multilayer, single-ply fabric in which first crosswise yarns are reinforced by twisting in combination with second crosswise yarns having superior tensile and compressive strength in comparison to said first crosswise yarns and in which the crosswise yarns are displaced from the neutral axis of said fabric by lengthwise yarns common to each layer and means for securing the crosswise and lengthwise yarns against relative movement.
Claim 2
Dependent Claim
72 words
A papermakers felt which comprises a woven multilayer, single-ply fabric in which first crosswise yarns are reinforced by twisting in combination with second crosswise yarns having superior tensile and compressive strength in comparison to said first crosswise yarns and in which the crosswise yarns are displaced from the neutral axis of said fabric by lengthwise yarns common to each layer and means for securing the crosswise and lengthwise yarns against relative movement.
Claim 3
Dependent Claim
13 words
A papermakers felt according to claim 1 wherein said crosswise yarns are straight.
Claim 4
Dependent Claim
22 words
A papermakers felt according to claim 1 wherein said lengthwise yarns are flexible and the crosswise yarns are straight and substantially rigid.
Claim 5
Dependent Claim
28 words
A papermakers felt according to claim 1 wherein said means for securing the crosswise yarns and the lengthwise yarns from relative movement comprises the tightness of the weave.
Claim 6
Dependent Claim
37 words
A papermakers felt according to claim 1 wherein said means of securing the crosswise yarns and the lengthwise yarns from relative movement comprises an adhesive bond between said crosswise yarns and said lengthwise yarns at crossover points.
Claim 7
Dependent Claim
14 words
A papermakers felt according to claim 5 wherein the adhesive is a resorcinol-formaldehyde resin.
Claim 8
Dependent Claim
14 words
A papermakers felt according to claim 5 wherein the adhesive is a polyurethane resin.
Claim 9
Dependent Claim
26 words
A papermakers felt according to claim 1 wherein said lengthwise yarns are multifilament nylon yarn and said crosswise yarns are asbestos yarn twisted about monel wire.
Claim 10
Dependent Claim
73 words
A papermakers felt which comprises; a woven multilayer, single-ply fabric having; (i) multiple layers of crosswise yarns wherein each yarn of each layer is substantially in vertical alignment with a corresponding yarn of the adjacent layer, and each crosswise yarn is rigid and straight; (ii) flexible lengthwise yarns which are common to each of said multiple layers; and (iii) an adhesive bond between said crosswise yarns and said lengthwise yarns at crossover points.
Claim 11
Dependent Claim
73 words
A papermakers felt which comprises; a woven multilayer, single-ply fabric having; (i) multiple layers of crosswise yarns wherein each yarn of each layer is substantially in vertical alignment with a corresponding yarn of the adjacent layer, and each crosswise yarn is rigid and straight; (ii) flexible lengthwise yarns which are common to each of said multiple layers; and (iii) an adhesive bond between said crosswise yarns and said lengthwise yarns at crossover points.
Claim 12
Dependent Claim
25 words
A papermakers felt according to claim 9 wherein said crosswise yarns are asbestos yarn twisted about monel wire and said lengthwise yarns are multifilament nylon.
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) | 1983-04-01 | 1983-10-01 | 1984-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-04-01 | 1987-10-01 | 1988-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-04-01 | 1991-10-01 | 1992-04-01 | $7700.00 | Window Closed / Lapsed |