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US3643300A Expired / Lapsed US ⏱️ 0.0 years remaining

Apparatus for producing nonwoven scrim fabrics

Assignee: Moulinage et Retorderie de Chavanoz SA
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Filing: 1970-10-30
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Granted: 1972-02-22
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Expires: 1990-10-30
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Abstract

Abstract The invention relates to a device for making nonwoven scrim, which device comprises a rotary member distributing two weft threads drawn from two fixedly mounted bobbins. It permits the production of nonwoven scrim of various constructions.

Inventors

  • 👤 Pierre Seguin

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-09 02:46
CPC Classifications
B; B65; B65H; B65H81/00; D; D04; D04H; D04H3/00; D04H3/02; D04H3/04; D04H3/045

Claims Analysis

Total Claims: 12
Claim 1
Independent Claim 99 words
Apparatus for producing nonwoven scrim fabrics comprising spaced thread support members for receiving a pair of continuous threads wound thereabout to provide a plurality of thread reaches extending therebetween, stationary means for supporting first and second thread supply packages, means for guiding first and second continuous threads from the supported packages and for winding the threads continuously about said spaced thread support members, and said means for supporting the first thread package positioned within the volume generated by movement of the path of the second thread as it is guided from its supply package to said thread support members.
Claim 2
Dependent Claim 99 words
Apparatus for producing nonwoven scrim fabrics comprising spaced thread support members for receiving a pair of continuous threads wound thereabout to provide a plurality of thread reaches extending therebetween, stationary means for supporting first and second thread supply packages, means for guiding first and second continuous threads from the supported packages and for winding the threads continuously about said spaced thread support members, and said means for supporting the first thread package positioned within the volume generated by movement of the path of the second thread as it is guided from its supply package to said thread support members.
Claim 3
Dependent Claim 37 words
Apparatus as defined in claim 1 wherein said means for supporting the first thread package also is positioned inside the volume generated by said movement of the path of the first thread to said thread support members.
Claim 4
Dependent Claim 72 words
Apparatus as defined in claim 1 wherein said guiding and winding means includes first and second thread guide outlet means movable in a closed path about said spaced thread support members, said first and second thread outlet means being spaced along said closed path of movement for separately guiding the threads, and means for moving said outlet means about said spaced thread support embers to wind the first and second threads thereabout.
Claim 5
Dependent Claim 108 words
Apparatus as defined in claim 3 wherein said guiding and winding means further comprises a rotatable support shaft having means for guiding the pair of threads therealong, means attached to and extending radially from said shaft for directing each of the threads outwardly of the shaft in different directions, said radially extending means including said thread guide outlet means displaced radially and along the axis of said shaft from the point of departure of the threads therefrom in the direction of said spaced thread support means, and means for rotating said support shaft to move said outlet means is a closed path about said spaced thread support members.
Claim 6
Dependent Claim 56 words
Apparatus as defined in claim 4 wherein said radially extending means comprises a pair of hollow guide arms extending outwardly from said shaft in opposite directions, the outer end portions of said guide arms being bent in the direction of said spaced thread support members and having said thread outlet means at the outer ends thereof.
Claim 7
Dependent Claim 63 words
Apparatus as defined in claim 4 wherein said means for guiding the weft threads along the rotatable support shaft includes means for guiding the threads for movement in opposite directions along the shaft, and wherein said means for supporting the first and second thread supply packages are located on opposite sides of the path of movement of said radially extending thread guide means.
Claim 8
Dependent Claim 149 words
Apparatus for producing nonwoven scrim fabrics comprising spaced thread support members for receiving a pair of continuous threads wound thereabout provide a plurality of thread reaches therebetween, a rotatable drive shaft, means mounting said shaft for rotation, a pair of thread guide arms attached to and extending outwardly from said shaft for rotation therewith, outer end portions of each said guide arms containing a thread outlet positioned adjacent said spaced thread support members whereby rotation of said shaft and guide arms moves said outlets in a closed path about said spaced members, means for supporting a first thread package adjacent one end of said shaft and a second thread package adjacent the other end thereof on the opposite sides of the plane of movement of said guide arms, and means for guiding threads from packages on each of said package support means along said Shaft to said guide arms.
Claim 9
Dependent Claim 149 words
Apparatus for producing nonwoven scrim fabrics comprising spaced thread support members for receiving a pair of continuous threads wound thereabout provide a plurality of thread reaches therebetween, a rotatable drive shaft, means mounting said shaft for rotation, a pair of thread guide arms attached to and extending outwardly from said shaft for rotation therewith, outer end portions of each said guide arms containing a thread outlet positioned adjacent said spaced thread support members whereby rotation of said shaft and guide arms moves said outlets in a closed path about said spaced members, means for supporting a first thread package adjacent one end of said shaft and a second thread package adjacent the other end thereof on the opposite sides of the plane of movement of said guide arms, and means for guiding threads from packages on each of said package support means along said Shaft to said guide arms.
Claim 10
Dependent Claim 44 words
Apparatus as defined in claim 7 wherein one of said thread package support means is positioned within the volume generated by the rotational movement of said thread guide arms, and means attaching said one package support means to said shaft for positional support thereby.
Claim 11
Dependent Claim 40 words
Apparatus as defined in claim 8 wherein said means for attaching said one thread package support means to said shaft includes means for supporting additional thread package support means within the volume generated by rotational movement of said guide arms.
Claim 12
Dependent Claim 28 words
Apparatus as defined in claim 9 wherein said drive shaft and guide arms are hollow and communicate to guide thread from yarn packages to said thread support members.

References Cited (Backward Citations)

US3505712A Cited
US3422511A Cited
US3390439A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1975-02-21 1975-08-23 1976-02-22 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-02-21 1979-08-23 1980-02-22 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-02-21 1983-08-23 1984-02-22 $7700.00 Window Closed / Lapsed

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