Patent US3596683A successfully refreshed from Google Patents.
US3596683A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Weft yarn measuring and detaining device for shuttleless loom
Assignee: Nissan Motor Co Ltd
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Filing: 1969-09-18
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Granted: 1971-08-03
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Expires: 1989-09-18
Abstract
Abstract A device for continuously measuring and detaining unit lengths of weft yarn in a shuttleless loom. The device has two conveying belts set at an angle formed by the belt surfaces facing each other and diverging from the common tangential contact line in the drive end where the unit lengths are continuously measured and then detained in the angular space formed between the belt surfaces facing each other.
Inventors
- 👤 Terumitu Dendo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 22:34
CPC Classifications
D; D03; D03D; D03D47/00
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
142 words
In a shuttleless loom of fluid jet type, a device for continuously measuring and detaining the weft yarn to be intermittently projected into the shed of the warp yarn array comprising a conveying detainer belt driven at an adjustable speed and a protecting guide belt positioned in a face-to-face angular relationship with said detainer belt and having its drive end portion in tangential friction driving contact with said detainer belt for drawing and measuring a unit length of weft yarn per time unit from a yarn supply package, the facing surfaces of said detainer belt and said guide belt diverging from said drive end portion to form an angular space therebetween whereby the weft yarn fed from between the two belts through said drive end portion is conveyed and detained on said detainer belt guided and protected by said protecting guide belt.
Claim 2
Dependent Claim
142 words
In a shuttleless loom of fluid jet type, a device for continuously measuring and detaining the weft yarn to be intermittently projected into the shed of the warp yarn array comprising a conveying detainer belt driven at an adjustable speed and a protecting guide belt positioned in a face-to-face angular relationship with said detainer belt and having its drive end portion in tangential friction driving contact with said detainer belt for drawing and measuring a unit length of weft yarn per time unit from a yarn supply package, the facing surfaces of said detainer belt and said guide belt diverging from said drive end portion to form an angular space therebetween whereby the weft yarn fed from between the two belts through said drive end portion is conveyed and detained on said detainer belt guided and protected by said protecting guide belt.
Claim 3
Dependent Claim
52 words
A device according to claim 1, wherein said conveying detainer belt is held in position by a drive roller and a weft feed roller and said protecting guide belt being held by a pair of spaced apart idlers in tangential friction driving contact with said conveying detainer belt in said drive end.
Claim 4
Dependent Claim
22 words
A device according to claim 2, wherein said conveying detainer belt is further held in position by at least one additional roller.
Claim 5
Dependent Claim
22 words
A device according to claim 2, wherein said protecting guide belt is further held in position by at least one additional roller.
Claim 6
Dependent Claim
45 words
A device according to claim 2, wherein said conveying detainer belt is held in position at said drive end portion by two additional rollers for increasing said friction driving contact tO cover a substantial area between said conveying detainer belt and said protecting guide belt.
Claim 7
Dependent Claim
60 words
A device according to claim 2, wherein said conveying detainer belt is held in position at said drive end portion by two additional rollers and said protecting guide belt is held in position by one additional roller pressing said protecting guide belt against said conveying detainer belt between said auxiliary idlers of said conveying detainer belt over a substantial area.
Claim 8
Dependent Claim
20 words
A device according to claim 2, wherein at least one pressure roller is provided to avoid slippage between said belts.
Claim 9
Dependent Claim
21 words
A device according to claim 2, wherein at least one additional roller is provided to maintain said protecting guide belt taut.
Claim 10
Dependent Claim
26 words
A device according to claim 8, wherein said roller is mounted on a spring urged lever whereby pressure applied to said protecting guide belt is adjusted.
Claim 11
Dependent Claim
12 words
A device according to claim 1, wherein said angular space is adjustable.
References Cited (Backward Citations)
US3131729A
Cited
FR1423405A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-02 | 1975-02-01 | 1975-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-02 | 1979-02-01 | 1979-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-02 | 1983-02-01 | 1983-08-03 | $7700.00 | Window Closed / Lapsed |