US4468937A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for the fulling and washing of cord fabrics
Assignee: Individual
•
Filing: 1982-01-20
•
Granted: 1984-09-04
•
Expires: 2002-01-20
Abstract
Abstract Internally of its tub, the machine provides a conduit fitted with fan-shaped delivery outlet. The fan portion of said delivery outlet terminates with an arcuate surface provided with slots along which the fabric being processed runs. The conduit has connected thereto a water supply pipe for the conveyance of air mixed with water on the fabric being processed.
Inventors
- 👤 Attilio Bertoldi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 04:46
CPC Classifications
D; D06; D06C; D06C17/00; D06B; D06B3/00; D06B3/24; D06B3/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
174 words
A machine for washing fabrics in the form of a rope having ends which are attached to each other to form a fabric ring, the machine comprising: (a) a tub; at least a pair of rollers urged one against the other and disposed in the tub, the rollers defining means therebetween for the passage of the fabric ring, at least one of the rollers being actuated to cause rotation of the fabric ring in the tub at a speed sufficient to create a centrifugal force on the fabric ring; (c) a constrictive passage means for receiving the fabric ring fed by the pair of rollers; (d) a perforated surface in the tub located inside the circle defined by the fabric ring, the inner surface of the fabric ring being adapted to pass over the perforated surface; and (e) means for blowing air through the perforated surface towards the inner surface of the fabric ring for swelling the fabric passing over the perforated surface and pneumatically stretching out folds or creases formed on the fabric.
Claim 2
Dependent Claim
174 words
A machine for washing fabrics in the form of a rope having ends which are attached to each other to form a fabric ring, the machine comprising: (a) a tub; at least a pair of rollers urged one against the other and disposed in the tub, the rollers defining means therebetween for the passage of the fabric ring, at least one of the rollers being actuated to cause rotation of the fabric ring in the tub at a speed sufficient to create a centrifugal force on the fabric ring; (c) a constrictive passage means for receiving the fabric ring fed by the pair of rollers; (d) a perforated surface in the tub located inside the circle defined by the fabric ring, the inner surface of the fabric ring being adapted to pass over the perforated surface; and (e) means for blowing air through the perforated surface towards the inner surface of the fabric ring for swelling the fabric passing over the perforated surface and pneumatically stretching out folds or creases formed on the fabric.
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Cited
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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) | 1987-09-04 | 1988-03-05 | 1988-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-09-04 | 1992-03-05 | 1992-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-09-04 | 1996-03-05 | 1996-09-04 | $7700.00 | Window Closed / Lapsed |