US4902383A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making a papermaker's felt with no flap seam
Assignee: Asten Inc
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Filing: 1989-04-28
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Granted: 1990-02-20
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Expires: 2009-04-28
Abstract
Abstract An improved seamed papermaker's press felt of the type having a pintle seamed base fabric and at least one layer of batt material affixed thereto is disclosed. The improvement resides in the provision of an angled slit through the batt material adjacent to the seam. By means of the angled splice, a need for a flap overlying the seam is avoided.
Inventors
- 👤 Patrick H. Penven
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:25
CPC Classifications
D; D21; D21F; D21F7/00; D21F7/08; D21F7/10; Y; Y10; Y10S; Y10S162/00; Y10S162/90; Y10S162/904
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
148 words
A method of forming a seam splice in a papermaker's felt having at least one batt layer affixed thereto, said method comprising the steps of: (a) determining the intended running direction of said felt on the papermaking machine; (b) opening the fabric seam; (c) providing a support means for supporting the felt in the area adjacent the seam; (d) orienting the felt on said support means with the batt layer in a topmost position; (e) folding the felt back upon itself to expose the bottom surface of said batt through said open seam; and (f) cutting said batt layer directly adjacent said open seam in a directing opposite to the running direction of the felt so as to create an angled splice beginning at the bottom of said batt layer adjacent to the seam and angling outwardly by at least 10 degrees from a perpendicular through the seam.
Claim 2
Independent Claim
148 words
A method of forming a seam splice in a papermaker's felt having at least one batt layer affixed thereto, said method comprising the steps of: (a) determining the intended running direction of said felt on the papermaking machine; (b) opening the fabric seam; (c) providing a support means for supporting the felt in the area adjacent the seam; (d) orienting the felt on said support means with the batt layer in a topmost position; (e) folding the felt back upon itself to expose the bottom surface of said batt through said open seam; and (f) cutting said batt layer directly adjacent said open seam in a directing opposite to the running direction of the felt so as to create an angled splice beginning at the bottom of said batt layer adjacent to the seam and angling outwardly by at least 10 degrees from a perpendicular through the seam.
Claim 3
Dependent Claim
28 words
The method of claim 1 wherein said angled splice is in the range of 10 to 25 degrees off the perpendicular plane through said seam in said felt.
Claim 4
Independent Claim
197 words
A method of forming a seam splice in a papermaker's felt having at least one top and one bottom batt layer affixed to the top side and the bottom side, respectively, of a base fabric which has a rejoinable seam, said method comprising the steps of: (a) determining the intended running direction of said felt on the papermaking machine; (b) making a substantially perpendicular cut through the bottom batt layer to said base fabric seam; (c) opening the base fabric seam; (d) providing a support means for supporting the felt in the area adjacent the seam; (e) orienting the felt on said support means with he top batt layer in a topmost position; (f) folding the felt back upon itself to expose the bottom surface of said top batt layer through said cut bottom batt layers and said open seam; and (g) cutting through said top batt layer directly adjacent said open seam so as to create an angled splice beginning at the bottom of said batt layer adjacent to the seam and angling outwardly by at least 10 degrees from a perpendicular through the seam in a direction opposite to the running direction of the felt.
Claim 5
Independent Claim
197 words
A method of forming a seam splice in a papermaker's felt having at least one top and one bottom batt layer affixed to the top side and the bottom side, respectively, of a base fabric which has a rejoinable seam, said method comprising the steps of: (a) determining the intended running direction of said felt on the papermaking machine; (b) making a substantially perpendicular cut through the bottom batt layer to said base fabric seam; (c) opening the base fabric seam; (d) providing a support means for supporting the felt in the area adjacent the seam; (e) orienting the felt on said support means with he top batt layer in a topmost position; (f) folding the felt back upon itself to expose the bottom surface of said top batt layer through said cut bottom batt layers and said open seam; and (g) cutting through said top batt layer directly adjacent said open seam so as to create an angled splice beginning at the bottom of said batt layer adjacent to the seam and angling outwardly by at least 10 degrees from a perpendicular through the seam in a direction opposite to the running direction of the felt.
Claim 6
Dependent Claim
28 words
The method of claim 3 wherein said angled splice is in the range of 10 to 25 degrees off the perpendicular plane through said seam in said felt.
References Cited (Backward Citations)
DE1956412A1
Cited
DE1958335A1
Cited
JPS55358A
Cited
US4279676A
Cited
US4601785A
Cited
US4683624A
Cited
US4743482A
Cited
US4737241A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-02-19 | 1993-08-21 | 1994-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-02-19 | 1997-08-21 | 1998-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-02-19 | 2001-08-21 | 2002-02-20 | $7700.00 | Window Closed / Lapsed |