US4409709A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for continuous untwisting and crimping of a cloth
Assignee: Sando Iron Works Co Ltd
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Filing: 1981-12-31
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Granted: 1983-10-18
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Expires: 2001-12-31
Abstract
Abstract An apparatus for continuous untwisting and crimping of a cloth, including in a treating chamber, a pair of endless net conveyers spaced vertically apart and forming a gap therebetween to serve as a cloth passage. A plurality of jet pipes, each having a series of nozzles, are arranged to jet a high pressure fluid into the cloth passage. The jet pipes are provided in a zigzag up and down arrangement on the outside of the gap with the net conveyers between them. As a long knitted or woven cloth is passed continuously through the cloth passage while it receives the force of a fluid jetted zigzag from both sides, the cloth adopts a snaky or undulating state, and is stretched, beat and crumpled strongly so that the cloth is untwisted and crimped effectively.
Inventors
- 👤 Yoshikazu Sando
- 👤 Hiroshi Ishidoshiro
- 👤 Matsuo Minakata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:08
CPC Classifications
D; D06; D06C; D06C7/00; D06C7/02; D06B; D06B3/00; D06B3/10; D06B3/16; D06C29/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
165 words
An apparatus for continuously untwisting and crimping a cloth, comprising a treating chamber, a pair of endless conveyers located in said treating chamber one positioned above the other and forming a gap therebetween to serve as a cloth passage, a plurality of jet pipes each having a series of nozzles for jetting a high pressure fluid into the cloth passage, said jet pipes arranged in a zigzag manner up and down on both outer sides of the gap within said net conveyers so that said nozzles direct the jets of high pressure fluid through said net conveyers into the gap, the plurality of said jet pipes is divided into two groups, with said jet pipes in each group disposed in parallel, the pipes in one of said groups extending approximately perpendicularly of said net conveyers and the other said group extending lengthwise of said net conveyers, and said two groups of jet pipes arranged alternating with one another along the length of said net conveyers.
Claim 2
Independent Claim
165 words
An apparatus for continuously untwisting and crimping a cloth, comprising a treating chamber, a pair of endless conveyers located in said treating chamber one positioned above the other and forming a gap therebetween to serve as a cloth passage, a plurality of jet pipes each having a series of nozzles for jetting a high pressure fluid into the cloth passage, said jet pipes arranged in a zigzag manner up and down on both outer sides of the gap within said net conveyers so that said nozzles direct the jets of high pressure fluid through said net conveyers into the gap, the plurality of said jet pipes is divided into two groups, with said jet pipes in each group disposed in parallel, the pipes in one of said groups extending approximately perpendicularly of said net conveyers and the other said group extending lengthwise of said net conveyers, and said two groups of jet pipes arranged alternating with one another along the length of said net conveyers.
Claim 3
Dependent Claim
82 words
An apparatus for continuously untwisting and crimping of a cloth as set forth in claim 1, said treating chamber having a cloth inlet at one end and a cloth outlet at the other end, a number of control nozzles to jet a high pressure fluid to the cloth are provided in the cloth passage crosswise thereto respectively adjacent to the cloth inlet and outlet inside of the treating chamber so as to push the cloth against the lower side endless net conveyer.
Claim 4
Dependent Claim
43 words
An apparatus for continuously untwisting and crimping of a cloth as set forth in claim 1, in which a cloth expanding means and a cloth setting means are provided further to set a cylindrical cloth with a constant width after untwisting and crimping.
References Cited (Backward Citations)
FR612768A
Cited
BE506798A
Cited
US3007223A
Cited
US3195210A
Cited
US3205686A
Cited
US3579679A
Cited
US3827262A
Cited
US3757548A
Cited
US3978696A
Cited
FR2285485A1
Cited
US4087993A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-10-17 | 1987-04-18 | 1987-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-10-17 | 1991-04-18 | 1991-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-10-17 | 1995-04-18 | 1995-10-18 | $7700.00 | Window Closed / Lapsed |