US3593394A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus having improved control means for producing nonwoven fabrics
Assignee: Deering Milliken Research Corp
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Filing: 1969-11-05
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Granted: 1971-07-20
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Expires: 1989-11-05
Abstract
Abstract Apparatus for producing nonwoven net fabrics composed of adhered warp and weft thread sheets, including means for winding a continuous weft thread around thread support means to form a plurality of thread sections which are advanced in generally spaced parallel relation to form the weft sheet, and means operatively associated with the winding means for sensing a predetermined condition and for advancing the thread sections in response thereto to facilitate uniform positioning of the thread sections in the weft sheet.
Inventors
- 👤 Milton M Bolles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:28
CPC Classifications
D; D04; D04H; D04H3/00; D04H3/02; D04H3/04
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
87 words
Apparatus for producing nonwoven net fabrics comprising thread support means, thread-winding means movable about said support means for winding a continuous thread thereabout to form a plurality of thread sections, said thread support means including means for advancing the thread sections in generally parallel spaced relation to form a weft sheet of threads, and means operatively associated with said winding means for sensing a predetermined condition and for advancing the thread sections in response thereto to facilitate uniform positioning of the thread sections in the weft sheet.
Claim 2
Dependent Claim
87 words
Apparatus for producing nonwoven net fabrics comprising thread support means, thread-winding means movable about said support means for winding a continuous thread thereabout to form a plurality of thread sections, said thread support means including means for advancing the thread sections in generally parallel spaced relation to form a weft sheet of threads, and means operatively associated with said winding means for sensing a predetermined condition and for advancing the thread sections in response thereto to facilitate uniform positioning of the thread sections in the weft sheet.
Claim 3
Dependent Claim
41 words
Apparatus as defined in claim 1 wherein said sensing means comprises means for sensing the position of the continuous thread being wound about said thread support means to advance the thread sections in response to a predetermined position of the thread.
Claim 4
Dependent Claim
29 words
Apparatus as defined in claim 1 wherein said sensing means comprises means for sensing the position of the movable thread-winding means to advance the thread sections in response thereto.
Claim 5
Dependent Claim
75 words
Apparatus as defined in claim 1 wherein said thread support means includes at least one elongate helical support member and said advancing means includes means for rotating the member about its longitudinal axis to move the thread sections in spaced relation along the helices of the member to form the weft sheet; and said means for advancing the sections in response to said sensing means comprises means for controlling the rotation of the support member.
Claim 6
Dependent Claim
26 words
Apparatus as defined in claim 4 wherein said rotation controlling means includes means for initiating rotation of said support member in response to said sensing means.
Claim 7
Dependent Claim
27 words
Apparatus as defined in claim 5 wherein said controlling means further includes means for rotating said support member a single revolution in response to said sensing means.
Claim 8
Dependent Claim
89 words
Apparatus as defined in claim 1 wherein said thread support means includes a pair of elongate helical thread support members, means mounting said members in generally parallel, side-by-side spaced relation for rotation about their respective longitudinal axes and for recEiving the continuous thread from the thread winding means in a plurality of thread sections therebetween; and said advancement means comprises means for controlling the rotation of said support members in response to said sensing means to facilitate uniform placement of the thread sections between the helices of the members.
Claim 9
Dependent Claim
32 words
Apparatus as defined in claim 7 wherein said rotation-controlling means includes means for initiating rotation of said support members in response to said sensing means for a predetermined amount of revolution thereof.
Claim 10
Dependent Claim
89 words
Apparatus as defined in claim 7 wherein said thread-winding means includes an endless flexible member, a thread guide mounted on said flexible member, means mounting said member for movement of said thread guide in a path around said thread support members to wind a continuous thread thereon to form the sections therebetween; and wherein said sensing means includes indicator means on said endless flexible member, and sensor means adjacent the path of movement of said thread guide and flexible member for detecting the passage of said indicator means thereby.
Claim 11
Dependent Claim
47 words
Apparatus as defined in claim 9 wherein said indicator means includes light-reflective means on said flexible member and said sensor means includes light-responsive means positioned adjacent the path of travel of said flexible member for actuation by said light-reflective means to initiate rotation of said support member.
Claim 12
Dependent Claim
26 words
Apparatus as defined in claim 10 wherein said rotation-controlling means includes clutch-brake means operatively connecting said means for rotating the support members to said support members.
Claim 13
Dependent Claim
34 words
Apparatus as defined in claim 11 wherein said clutch-brake means includes means for initiating rotation of the support members and for stopping rotation of the support members after a predetermined amount of revolution thereof.
Claim 14
Dependent Claim
64 words
Apparatus as defined in claim 9 wherein said sensor means includes a sensor element located at each end of said path and adjacent each thread support member to detect the passage of said indicator means thereby; and said rotation-controlling means includes means operatively connected to each of said sensor elements for independently controlling the rotation of the thread support member adjacent said sensor element.
Claim 15
Dependent Claim
28 words
Apparatus as defined in claim 13 wherein said independently controlling means includes means for initiating rotation of said adjacent support member for a predetermined amount of revolution thereof.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-19 | 1975-01-18 | 1975-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-19 | 1979-01-18 | 1979-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-19 | 1983-01-18 | 1983-07-20 | $7700.00 | Window Closed / Lapsed |