US4582740A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for covering a substrate with threads welded through the use of ultrasounds, a machine for the application of this process and a substrate covered with threads welded according to this process
Assignee: Internationale de Revetements de Sol Sirs Ste SA
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Filing: 1984-11-26
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Granted: 1986-04-15
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Expires: 2004-11-26
Abstract
Abstract A machine for producing pile fabric comprises a sonotrode (1) , a matrix (4) of tubes (5) bringing threads (10) onto a support sheet (7) for the purpose of welding rows of loops to the surface of this sheet. The matrix (4) is guided between slides (6) which are parallel to the longitudinal axes of the tubes (5) and perpendicularly to the surface of application of the sonotrode (1) vibrations. A driving mechanism (13, 14, 15) periodically brings the extremities of the tubes (5) from which the threads leave against the sonotrode (1) by pressing the base of a row of loops and the support sheet (7) against the sonotrode in order to cause them to be welded together.
Inventors
- 👤 Erwin Zurcher
- 👤 Remi Cottenceau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:25
CPC Classifications
D; D04; D04H; D04H11/00; D04H11/04; B; B29; B29C; B29C65/00; B29C65/02; B29C65/08; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/20; B29C66/21; B29C66/40; B29C66/47; B29C66/474; B29C66/69; B29C66/70; B29C66/73; B29C66/739; B29C66/7392; B29C66/73921; B29C66/80; B29C66/81; B29C66/814; B29C66/8141; B29C66/81411; B29C66/81415; B29C66/81419; B29C66/8145; B29C66/81463; B29C66/81467; B29C66/82; B29C66/822; B29C66/8225; B29C66/83; B29C66/832; B29C66/8322; B29C66/84; B29C66/843; B29C66/8432; A; A44; A44B; A44B18/00; A44B18/0046; A44B18/0057; B29L; B29L2031/00; B29L2031/727; B29L2031/729; Y; Y10; Y10T; Y10T156/00; Y10T156/17; Y10T156/1702; Y10T156/1712; Y10T156/1737; Y10T428/00; Y10T428/23907; Y10T428/23929; Y10T428/23957; Y10T428/23964; Y10T428/23971
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
120 words
A pile fabric comprising a web substrate and a multiplicity of transversely spaced continuous threads in an undulating pattern having each a longitudinally extending row of loops upstanding from said substrate alternating with loops in contact with said substrate and ultrasonically welded to said substrate only at the points at which the alternate loops contact said substrate, the loops upstanding from said substrate forming the pile of the fabric and substantially covering the surface of said substrate to which said threads are welded, said rows being parallel to one another with the loops and contact points of each row being staggered in the longitudinal direction with respect to the loops and contact points of other rows transversely across the substrate.
Claim 2
Dependent Claim
120 words
A pile fabric comprising a web substrate and a multiplicity of transversely spaced continuous threads in an undulating pattern having each a longitudinally extending row of loops upstanding from said substrate alternating with loops in contact with said substrate and ultrasonically welded to said substrate only at the points at which the alternate loops contact said substrate, the loops upstanding from said substrate forming the pile of the fabric and substantially covering the surface of said substrate to which said threads are welded, said rows being parallel to one another with the loops and contact points of each row being staggered in the longitudinal direction with respect to the loops and contact points of other rows transversely across the substrate.
Claim 3
Dependent Claim
21 words
The pile fabric defined in claim 1 wherein the upstanding loops of each row are of different heights along the row.
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) | 1989-04-14 | 1989-10-14 | 1990-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-04-14 | 1993-10-14 | 1994-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-04-14 | 1997-10-14 | 1998-04-15 | $7700.00 | Window Closed / Lapsed |