US3858623A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Papermakers fabrics
Assignee: HUYCK CORPORATION A CORP. OF NY.
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Filing: 1973-11-15
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Granted: 1975-01-07
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Expires: 1993-11-15
Abstract
Abstract This invention relates to paper machine clothing, and more particularly to a woven forming medium, the machine direction yarns of which have crimps which undulate in the cross-machine direction, and to a method for producing same.
Inventors
- 👤 Leonard R Lefkowitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:38
CPC Classifications
D; D21; D21F; D21F1/00; D21F1/0027; Y; Y10; Y10S; Y10S162/00; Y10S162/903
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
163 words
A forming belt for a papermaking machine comprising: a. nondeformable warp and weft yarns interwoven to form said belt with certain of said yarns extending in the lengthwise direction of said belt and other yarns extending in the widthwise direction of said belt, said widthwise yarns being woven such that they are not interlaced between two adjacent lengthwise yarns at a point where said widthwise yarns will interfere with lateral crimping in said lengthwise yarns; b. the vertical distance between the axes of adjacent lengthwise yarns being less Than the diameter of said widthwise yarns to substantially reduce vertical crimp in said lengthwise yarns; and, c. said widthwise yarns having a diameter, measured at a point where said widthwise yarns contact adjacent lengthwise yarns, which is greater than the arithmetical mean displacement between adjacent surfaces of said lengthwise yarns, the lateral distance between adjacent lengthwise yarns varying substantially continuously along the length of the fabric to accommodate the interlacing of said widthwise yarns.
Claim 2
Dependent Claim
163 words
A forming belt for a papermaking machine comprising: a. nondeformable warp and weft yarns interwoven to form said belt with certain of said yarns extending in the lengthwise direction of said belt and other yarns extending in the widthwise direction of said belt, said widthwise yarns being woven such that they are not interlaced between two adjacent lengthwise yarns at a point where said widthwise yarns will interfere with lateral crimping in said lengthwise yarns; b. the vertical distance between the axes of adjacent lengthwise yarns being less Than the diameter of said widthwise yarns to substantially reduce vertical crimp in said lengthwise yarns; and, c. said widthwise yarns having a diameter, measured at a point where said widthwise yarns contact adjacent lengthwise yarns, which is greater than the arithmetical mean displacement between adjacent surfaces of said lengthwise yarns, the lateral distance between adjacent lengthwise yarns varying substantially continuously along the length of the fabric to accommodate the interlacing of said widthwise yarns.
Claim 3
Dependent Claim
165 words
A forming belt for a papermaking machine comprising: a. nondeformable synthetic monofilament warp and weft yarns interwoven to form said belt with certain of said yarns extending in the lengthwise direction of said belt and other yarns extending in the widthwise direction of said belt, said widthwise yarns being woven such that they are not interlaced between two adjacent lengthwise yarns at a point where said widthwise yarns will interfere with lateral crimping in said lengthwise yarns; b. the vertical distance between the axes of adjacent lengthwise yarns being less than the diameter of said widthwise yarns to substantially reduce vertical crimp in said lengthwise yarns; and, c. said widthwise yarns having a diameter, measured at a point where said widthwise yarns contact adjacent lengthwise yarns, which is greater than the arithmetical mean displacement between adjacent surfaces of said lengthwise yarns, the lateral distance between adjacent lengthwise yarns varying substantially continuously along the length of the fabric to accommodate the interlacing of said widthwise yarns.
Claim 4
Dependent Claim
165 words
A forming belt for a papermaking machine comprising: a. nondeformable synthetic monofilament warp and weft yarns interwoven to form said belt with certain of said yarns extending in the lengthwise direction of said belt and other yarns extending in the widthwise direction of said belt, said widthwise yarns being woven such that they are not interlaced between two adjacent lengthwise yarns at a point where said widthwise yarns will interfere with lateral crimping in said lengthwise yarns; b. the vertical distance between the axes of adjacent lengthwise yarns being less than the diameter of said widthwise yarns to substantially reduce vertical crimp in said lengthwise yarns; and, c. said widthwise yarns having a diameter, measured at a point where said widthwise yarns contact adjacent lengthwise yarns, which is greater than the arithmetical mean displacement between adjacent surfaces of said lengthwise yarns, the lateral distance between adjacent lengthwise yarns varying substantially continuously along the length of the fabric to accommodate the interlacing of said widthwise yarns.
Claim 5
Dependent Claim
186 words
A forming belt for a papermaking machine comprising: a. nondeformable synthetic monofilament warp and weft yarns which consist substantially entirely of one or more synthetic materials selected from the group consisting of polyamides, polyesters, acrylics and copolymers interwoven to form said belt with certain of said yarns extending in the lengthwise direction of said belt and other yarns extending in the widthwise direction of said belt, said widthwise yarns being woven such that they are not interlaced between two adjacent lengthwise yarns at a point where said widthwise yarns will interfere with lateral crimping in said lengthwise yarns, b. the vertical distance between the axes of adjacent lengthwise yarns being less than the diameter of said widthwise yarns to substantially reduce vertical crimp in said lengthwise yarns; and, c. said widthwise yarns having a diameter, measured at a point where said widthwise yarns contact adjacent lengthwise yarns, which is greater than the arithmetical mean displacement between adjacent surfaces of said lengthwise yarns, the lateral distance between adjacent lengthwise yarns varying substantially continuously along the length of the fabric to accommodate the interlacing of said widthwise yarns.
Claim 6
Dependent Claim
186 words
A forming belt for a papermaking machine comprising: a. nondeformable synthetic monofilament warp and weft yarns which consist substantially entirely of one or more synthetic materials selected from the group consisting of polyamides, polyesters, acrylics and copolymers interwoven to form said belt with certain of said yarns extending in the lengthwise direction of said belt and other yarns extending in the widthwise direction of said belt, said widthwise yarns being woven such that they are not interlaced between two adjacent lengthwise yarns at a point where said widthwise yarns will interfere with lateral crimping in said lengthwise yarns, b. the vertical distance between the axes of adjacent lengthwise yarns being less than the diameter of said widthwise yarns to substantially reduce vertical crimp in said lengthwise yarns; and, c. said widthwise yarns having a diameter, measured at a point where said widthwise yarns contact adjacent lengthwise yarns, which is greater than the arithmetical mean displacement between adjacent surfaces of said lengthwise yarns, the lateral distance between adjacent lengthwise yarns varying substantially continuously along the length of the fabric to accommodate the interlacing of said widthwise yarns.
Claim 7
Dependent Claim
189 words
A forming belt for a papermaking machine comprising: a. nondeformable warp and weft yarns which consist substantially entirely of one or more synthetic materials selected from the group consisting of polyamides, polyesters, acrylics and copolymers interwoven in a four-harness sateen weave to form said belt with certain of said yarns extending in the lengthwise direction of said belt and other yarns extending in the widthwise direction of said belt, said widthwise yarns being woven such that they are not interlaced between two adjacent lengthwise yarns at a point where said widthwise yarns will interfere with lateral crimping in said lengthwise yarns; b. the vertical distance between the axes of adjacent lengthwise yarns being less than the diameter of said widthwise yarns to substantially reduce vertical crimp in said lengthwise yarns; and, c. said widthwise yarns having a diameter, measured at a point where said widthwise yarns contact adjacent lengthwise yarns, which is greater than the arithmetical mean displacement between adjacent surfaces of said lengthwise yarns, the lateral distaNce between adjacent lengthwise yarns varying substantially continuously along the length of the fabric to accommodate the interlacing of said widthwise yarns.
Claim 8
Dependent Claim
189 words
A forming belt for a papermaking machine comprising: a. nondeformable warp and weft yarns which consist substantially entirely of one or more synthetic materials selected from the group consisting of polyamides, polyesters, acrylics and copolymers interwoven in a four-harness sateen weave to form said belt with certain of said yarns extending in the lengthwise direction of said belt and other yarns extending in the widthwise direction of said belt, said widthwise yarns being woven such that they are not interlaced between two adjacent lengthwise yarns at a point where said widthwise yarns will interfere with lateral crimping in said lengthwise yarns; b. the vertical distance between the axes of adjacent lengthwise yarns being less than the diameter of said widthwise yarns to substantially reduce vertical crimp in said lengthwise yarns; and, c. said widthwise yarns having a diameter, measured at a point where said widthwise yarns contact adjacent lengthwise yarns, which is greater than the arithmetical mean displacement between adjacent surfaces of said lengthwise yarns, the lateral distaNce between adjacent lengthwise yarns varying substantially continuously along the length of the fabric to accommodate the interlacing of said widthwise yarns.
Claim 9
Dependent Claim
163 words
An endless woven forming belt for a papermaking machine comprising: a. nondeformable warp and weft yarns interwoven to form said belt with weft yarns extending in the lengthwise direction of said belt and warp yarns extending in the widthwise direction of said belt, said warp yarns being woven such that they are not interlaced between two adjacent weft yarns at a point where said warp yarns will interfere with lateral crimping in said weft yarns, b. the vertical distance between the axes of adjacent weft yarns being less than the diameter of said warp yarns to substantially reduce vertical crimp in said weft yarns; and, c. said warp yarns having a diameter, measured at a point where said warp yarns contact adjacent weft yarns, which is greater than the arithmetical mean displacement between adjacent surfaces of said weft yarns, the lateral distance between adjacent weft yarns varying substantially continuously along the length of the fabric to accommodate the interlacing of said warp yarns.
Claim 10
Dependent Claim
163 words
An endless woven forming belt for a papermaking machine comprising: a. nondeformable warp and weft yarns interwoven to form said belt with weft yarns extending in the lengthwise direction of said belt and warp yarns extending in the widthwise direction of said belt, said warp yarns being woven such that they are not interlaced between two adjacent weft yarns at a point where said warp yarns will interfere with lateral crimping in said weft yarns, b. the vertical distance between the axes of adjacent weft yarns being less than the diameter of said warp yarns to substantially reduce vertical crimp in said weft yarns; and, c. said warp yarns having a diameter, measured at a point where said warp yarns contact adjacent weft yarns, which is greater than the arithmetical mean displacement between adjacent surfaces of said weft yarns, the lateral distance between adjacent weft yarns varying substantially continuously along the length of the fabric to accommodate the interlacing of said warp yarns.
Claim 11
Dependent Claim
161 words
A forming belt for a papermaking machine comprising: a. nondeformable warp and weft yarns interwoven to form said belt with warp yarns extending in the lengthwise direction of said belt and weft yarns extending in the widthwise direction of said belts, said weft yarns being woven such that they are not interlaced between two adjacent warp yarns at a point where said weft yarns will interfere with lateral crimping in said warp yarns; b. the vertical distance between the axes of adjacent warp yarns being less than the diameter of said weft yarns to substantially reduce vertical crimp in said warp yarns; and, c. said weft yarns having a diameter, measured at a point where said weft yarns contact adjacent warp yarns, which is greater than the arithmetical mean displacement between adjacent surfaces of said warp yarns, the lateral distance between adjacent warp yarns varying substantially continuously along the length of the fabric to accommodate the interlacing of said weft yarns.
Claim 12
Dependent Claim
161 words
A forming belt for a papermaking machine comprising: a. nondeformable warp and weft yarns interwoven to form said belt with warp yarns extending in the lengthwise direction of said belt and weft yarns extending in the widthwise direction of said belts, said weft yarns being woven such that they are not interlaced between two adjacent warp yarns at a point where said weft yarns will interfere with lateral crimping in said warp yarns; b. the vertical distance between the axes of adjacent warp yarns being less than the diameter of said weft yarns to substantially reduce vertical crimp in said warp yarns; and, c. said weft yarns having a diameter, measured at a point where said weft yarns contact adjacent warp yarns, which is greater than the arithmetical mean displacement between adjacent surfaces of said warp yarns, the lateral distance between adjacent warp yarns varying substantially continuously along the length of the fabric to accommodate the interlacing of said weft yarns.
Claim 13
Dependent Claim
176 words
An endless woven forming belt for a papermaking machine comprising: a. nondeformable synthetic monofilament polyester warp and weft yarns interwoven in a four-harness sateen weave to form said belt with 62 to 95 weft yarns per inch extending in the lengthwise direction of said belt and warp yarns extending in the widthwise direction of said belt, said warp yarns being woven such that they are not interlaced between two adjacent weft yarns at a point where said warp yarns will interfere with lateral crimping in said weft yarns; b. the vertical distance between the axes of adjacent weft yarns being less than the diameter of said warp yarns to substantially reduce vertical crimp in said weft yarns; and, c. said warp yarns having a diameter, measured at a point where said warp yarns contact adjacent weft yarns, which is greater than the arithmetical mean displacement between adjacent surfaces of said weft yarns, the lateral distance between adjacent weft yarns varying substantially continuously along the length of the fabric to accommodate the interlacing of said warp yarns.
Claim 14
Dependent Claim
176 words
An endless woven forming belt for a papermaking machine comprising: a. nondeformable synthetic monofilament polyester warp and weft yarns interwoven in a four-harness sateen weave to form said belt with 62 to 95 weft yarns per inch extending in the lengthwise direction of said belt and warp yarns extending in the widthwise direction of said belt, said warp yarns being woven such that they are not interlaced between two adjacent weft yarns at a point where said warp yarns will interfere with lateral crimping in said weft yarns; b. the vertical distance between the axes of adjacent weft yarns being less than the diameter of said warp yarns to substantially reduce vertical crimp in said weft yarns; and, c. said warp yarns having a diameter, measured at a point where said warp yarns contact adjacent weft yarns, which is greater than the arithmetical mean displacement between adjacent surfaces of said weft yarns, the lateral distance between adjacent weft yarns varying substantially continuously along the length of the fabric to accommodate the interlacing of said warp yarns.
Claim 15
Independent Claim
169 words
A method of producing a forming belt for a papermaking machine with certain of said yarns extending in the lengthwise direction of said belt and other yarns extending in the widthwise direction of said belt comprising the steps of weaving said belt from nondeformable warp and weft yarns with said widthwise yarns being woven such that they are not interlaced between two adjacent lengthwise yarns at a point where said widthwise yarns will interfere with lateral crimping in said lengthwise yarns, and with the vertical distance between the axes of adjacent lengthwise yarns being less than the diameter of said widthwise yarns to substantially reduce vertical crimp in said lengthwise yarns, and with the arithmetical meAn displacement between adjacent surfaces of said lengthwise yarns being less than the diameter of said widthwise yarns, measured at a point where said widthwise yarns contact adjacent lengthwise yarns, the lateral distance between adjacent lengthwise yarns varying substantially continuously along the length of the fabric to accommodate the interlacing of said widthwise yarns.
Claim 16
Independent Claim
169 words
A method of producing a forming belt for a papermaking machine with certain of said yarns extending in the lengthwise direction of said belt and other yarns extending in the widthwise direction of said belt comprising the steps of weaving said belt from nondeformable warp and weft yarns with said widthwise yarns being woven such that they are not interlaced between two adjacent lengthwise yarns at a point where said widthwise yarns will interfere with lateral crimping in said lengthwise yarns, and with the vertical distance between the axes of adjacent lengthwise yarns being less than the diameter of said widthwise yarns to substantially reduce vertical crimp in said lengthwise yarns, and with the arithmetical meAn displacement between adjacent surfaces of said lengthwise yarns being less than the diameter of said widthwise yarns, measured at a point where said widthwise yarns contact adjacent lengthwise yarns, the lateral distance between adjacent lengthwise yarns varying substantially continuously along the length of the fabric to accommodate the interlacing of said widthwise yarns.
Claim 17
Independent Claim
200 words
A method of producing a forming belt for a papermaking machine having certain of said yarns extending in the lengthwise direction of said belt and having other of said yarns extending in the widthwise direction of said belt comprising the steps of weaving said belt from nondeformable warp and weft yarns with said widthwise yarns being woven such that they are not interlaced between two adjacent lengthwise yarns at a point where said widthwise yarns will interfere with lateral crimping in said lengthwise yarns, and with the vertical distance between the axes of adjacent lengthwise yarns being less than the diameter of said widthwise yarns to substantially reduce vertical crimp in said lengthwise yarns, and reducing the length of the widthwise yarns by shrinking said yarns until the arithmetical mean displacement between adjacent surfaces of said lengthwise yarns is less than the diameter of said widthwise yarns, measured at a point where said widthwise yarns contact adjacent lengthwise yarns, while holding said lengthwise yarns such that said vertical distance remains less than said diameter, to allow the lateral between adjacent lengthwise yarns to vary substantially continuously along the length of the fabric to accommodate the interlacing of said widthwise yarns.
Claim 18
Independent Claim
200 words
A method of producing a forming belt for a papermaking machine having certain of said yarns extending in the lengthwise direction of said belt and having other of said yarns extending in the widthwise direction of said belt comprising the steps of weaving said belt from nondeformable warp and weft yarns with said widthwise yarns being woven such that they are not interlaced between two adjacent lengthwise yarns at a point where said widthwise yarns will interfere with lateral crimping in said lengthwise yarns, and with the vertical distance between the axes of adjacent lengthwise yarns being less than the diameter of said widthwise yarns to substantially reduce vertical crimp in said lengthwise yarns, and reducing the length of the widthwise yarns by shrinking said yarns until the arithmetical mean displacement between adjacent surfaces of said lengthwise yarns is less than the diameter of said widthwise yarns, measured at a point where said widthwise yarns contact adjacent lengthwise yarns, while holding said lengthwise yarns such that said vertical distance remains less than said diameter, to allow the lateral between adjacent lengthwise yarns to vary substantially continuously along the length of the fabric to accommodate the interlacing of said widthwise yarns.
Claim 19
Independent Claim
206 words
A method of producing a forming belt for a papermaking machine having certain of said yarns extending in the lengthwise direction of said belt and having other of said yarns extending in the widthwise direction of said belt comprising the steps of weaving said belt from nondeformable warp and weft yarns with said widthwise yarns being woven such that they are not interlaced between two adjacent lengthwise yarns at a point where said widthwise yarns will interfere with lateral crimping in said lengthwise yarns, and with the vertical distance between the axes of adjacent lengthwise yarns being less than the diameter of said widthwise yarns to substantially reduce vertical crimp in said lengthwise yarns, and reducing the length of the widthwise yarns by subjecting said belt to lengthwise tension and heat until the arithmetical mean displacement between adjacent surfaces of said lengthwise yarns is less than the diameter of said widthwise yarns, measured at a point where said widthwise yarns contact adjacent lengthwise yarns, while holding said lengthwise yarns such that said vertical distance remains less than said diameter, to allow the lateral distance between adjacent lengthwise yarns to vary substantially continuously along the length of the fabric to accommodate the interlacing of said widthwise yarns.
Claim 20
Independent Claim
206 words
A method of producing a forming belt for a papermaking machine having certain of said yarns extending in the lengthwise direction of said belt and having other of said yarns extending in the widthwise direction of said belt comprising the steps of weaving said belt from nondeformable warp and weft yarns with said widthwise yarns being woven such that they are not interlaced between two adjacent lengthwise yarns at a point where said widthwise yarns will interfere with lateral crimping in said lengthwise yarns, and with the vertical distance between the axes of adjacent lengthwise yarns being less than the diameter of said widthwise yarns to substantially reduce vertical crimp in said lengthwise yarns, and reducing the length of the widthwise yarns by subjecting said belt to lengthwise tension and heat until the arithmetical mean displacement between adjacent surfaces of said lengthwise yarns is less than the diameter of said widthwise yarns, measured at a point where said widthwise yarns contact adjacent lengthwise yarns, while holding said lengthwise yarns such that said vertical distance remains less than said diameter, to allow the lateral distance between adjacent lengthwise yarns to vary substantially continuously along the length of the fabric to accommodate the interlacing of said widthwise yarns.
Claim 21
Independent Claim
166 words
A method of producing an endless woven forming belt for a papermaking machine with weft yarns extending in the lengthwise direction of said belt and warp yarns extending in the widthwise direction of said belt comprising the steps of weaving said belt from nondeformable yarns with said warp yarns being woven such that they are not interlaced between two adjacent weft yarns at a point where said warp yarns will interfere with lateral crimping in said weft yarns, and with the vertical distance between the axes of adjacent weft yarns being less than the diameter of said warp yarns to substantially reduce vertical crimp in said weft yarns, and with the arithmetical mean displacement between adjacent surfaces of said weft yarns being less than the diameter of said warp yarns, measured at a point where said warp yarns contact adjacent weft yarns, the lateral distance between adjacent weft yarns varying substantially continuously along the length of the fabric to accommodate the interlacing of said warp yarns.
Claim 22
Independent Claim
166 words
A method of producing an endless woven forming belt for a papermaking machine with weft yarns extending in the lengthwise direction of said belt and warp yarns extending in the widthwise direction of said belt comprising the steps of weaving said belt from nondeformable yarns with said warp yarns being woven such that they are not interlaced between two adjacent weft yarns at a point where said warp yarns will interfere with lateral crimping in said weft yarns, and with the vertical distance between the axes of adjacent weft yarns being less than the diameter of said warp yarns to substantially reduce vertical crimp in said weft yarns, and with the arithmetical mean displacement between adjacent surfaces of said weft yarns being less than the diameter of said warp yarns, measured at a point where said warp yarns contact adjacent weft yarns, the lateral distance between adjacent weft yarns varying substantially continuously along the length of the fabric to accommodate the interlacing of said warp yarns.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-01-06 | 1978-07-08 | 1979-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-06 | 1982-07-08 | 1983-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-06 | 1986-07-08 | 1987-01-07 | $7700.00 | Window Closed / Lapsed |