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US3709262A Expired / Lapsed US ⏱️ 0.0 years remaining

Circular weaving machine

Assignee: Georg Fischer AG
•
Filing: 1971-03-08
•
Granted: 1973-01-09
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Expires: 1991-03-08
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Abstract

Abstract The present invention is devoted to devising a circular weaving loom in which the conventional shedding mechanism and shuttle circulating within the shed are unnecessary.

Inventors

  • 👤 H Braunschweiler

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 05:07
CPC Classifications
D; D03; D03D; D03D37/00

Claims Analysis

Total Claims: 11
Claim 1
Independent Claim 158 words
A circular weaving machine characterized in that first and second magazine devices are provided, each emitting a group of warp threads, at least the second of said magazine devices being arranged basically along a self-contained curve and following the first magazine device looked at in the direction of run of the warp threads and that it is fitted with individually separated magazine elements between which warp threads from the first magazine device are capable of being led, power driven circularly moving means being provided parallel to the self-contained curve to lead weft threads between the two magazine devices and up to the first group of warp threads from the one and the other side alternately and to move them past the second magazine device in the direction of run of the warp, said power driven, circularly moving means comprising thread guides which helically encompass a number of the magazine elements for the warp threads of the second group.
Claim 2
Dependent Claim 158 words
A circular weaving machine characterized in that first and second magazine devices are provided, each emitting a group of warp threads, at least the second of said magazine devices being arranged basically along a self-contained curve and following the first magazine device looked at in the direction of run of the warp threads and that it is fitted with individually separated magazine elements between which warp threads from the first magazine device are capable of being led, power driven circularly moving means being provided parallel to the self-contained curve to lead weft threads between the two magazine devices and up to the first group of warp threads from the one and the other side alternately and to move them past the second magazine device in the direction of run of the warp, said power driven, circularly moving means comprising thread guides which helically encompass a number of the magazine elements for the warp threads of the second group.
Claim 3
Dependent Claim 25 words
A circular weaving machine as in claim 1, wherein successive thread guides are curved helically in the opposite direction to that of their own rotation.
Claim 4
Dependent Claim 43 words
A circular weaving machine as in claim 1, wherein each of the magazine elements for the warp threads of the second group, irrespective of its position relative to the thread guides, is constantly within the reach of two or more successive thread guides.
Claim 5
Dependent Claim 19 words
A circular weaving machine as in claim 3, wherein all the thread guides are driven in the same direction.
Claim 6
Dependent Claim 42 words
A circular weaving machine as in claim 1, wherein the magazine elements for the warp threads of the second group are arranged along a circle, while the magazine device for the warp threads of the second group is arranged around a circle.
Claim 7
Dependent Claim 45 words
A circular weaving machine as in claim 1, wherein the magazine eleMents for the warp threads of the second group are arranged along a circle, while the warp threads of the second group form a rotation surface, the basic line of which is a circle.
Claim 8
Dependent Claim 19 words
A circular weaving machine as in claim 1, wherein each thread guide is associated with a weft thread magazine.
Claim 9
Dependent Claim 269 words
A circular weaving machine characterized in that first and second magazine devices are provided, each emitting a group of warp threads, at least the second of said magazine devices being arranged basically along a self-contained curve and following the first magazine device looked at in the direction of run of the warp threads and that it is fitted with individually separated magazine elements between which warp threads from the first magazine device are capable of being led, power driven circularly moving means being provided parallel to the self-contained curve to lead weft threads between the two magazine devices and up to the first group of warp threads from the one and the other side alternately and to move them past the second magazine device in the direction of run of the warp, the magazine elements for the warp threads of the second group being arranged along a circle, while the magazine device for the warp threads of the first group is arranged around a circle, the magazine elements for the warp threads of the second group of warp threads being arranged in individual and similar groups that are separated from one another by gaps so as to be spaced apart in the circumferential direction along the circle, each such group of magazine elements being preceded by a separate magazine for the warp threads of the first group of warp threads, a maximum of as many thread guides being provided as there are gaps between the groups of magazine elements, and half of such thread guides being adapted to be driven in the opposite direction to the other half thereof.
Claim 10
Dependent Claim 269 words
A circular weaving machine characterized in that first and second magazine devices are provided, each emitting a group of warp threads, at least the second of said magazine devices being arranged basically along a self-contained curve and following the first magazine device looked at in the direction of run of the warp threads and that it is fitted with individually separated magazine elements between which warp threads from the first magazine device are capable of being led, power driven circularly moving means being provided parallel to the self-contained curve to lead weft threads between the two magazine devices and up to the first group of warp threads from the one and the other side alternately and to move them past the second magazine device in the direction of run of the warp, the magazine elements for the warp threads of the second group being arranged along a circle, while the magazine device for the warp threads of the first group is arranged around a circle, the magazine elements for the warp threads of the second group of warp threads being arranged in individual and similar groups that are separated from one another by gaps so as to be spaced apart in the circumferential direction along the circle, each such group of magazine elements being preceded by a separate magazine for the warp threads of the first group of warp threads, a maximum of as many thread guides being provided as there are gaps between the groups of magazine elements, and half of such thread guides being adapted to be driven in the opposite direction to the other half thereof.
Claim 11
Dependent Claim 19 words
A circular weaving machine as in claim 8 wherein each thread guide is associated with a weft thread magazine.

References Cited (Backward Citations)

US1495311A Cited
US3056430A Cited
FR2009039A1 Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-01-09 1976-07-10 1977-01-09 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-01-09 1980-07-10 1981-01-09 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-01-09 1984-07-10 1985-01-09 $7700.00 Window Closed / Lapsed

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