US3581486A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Splicing of multifilament strands by turbulent gaseous fluid
Assignee: Eastman Kodak Co
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Filing: 1968-11-01
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Granted: 1971-06-01
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Expires: 1988-11-01
Abstract
Abstract Method, article of the method and apparatus for practicing the method by which overlapped strands of multifilament material are spliced together by a turbulent gaseous fluid with the resulting splice being about at least 80 percent of the strength of one of the unspliced strands and being only slightly increased in crosssectional size than that of an unspliced strand; the splice being characterized by a false interweaving.
Inventors
- 👤 Merton L Dibble
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 02:35
CPC Classifications
B; B65; B65H; B65H69/00; B65H69/06; B65H69/061; B65H2701/00; B65H2701/30; B65H2701/31
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
104 words
Method of joining multifilament strands of material, comprising the steps of positioning the end portions of said strands in overlapping relationship within a chamber that loosely confines the overlapped strands; holding the overlapped strands at their one end while leaving the other end free; supporting the overlapped strands within the chamber free from resting contact with the chamber walls by opposed streams of gaseous fluid that impinge the overlapped strands at opposite sides at one location along their axes; and moving the overlapped strands relative to the supporting opposed streams and in a direction that will bring their free end past said one location.
Claim 2
Dependent Claim
118 words
Method for joining two or more strands each comprising multifilamentary material, and comprising the steps of initially securing against axial movement a portion of each of the strands in stationary overlapping relationship and agitating the filaments of said overlapping strands by a turbulent flow of gaseous fluid within a confined space which loosely restricts the strands with reference to the cross-sectional area which they may occupy, and which causes the turbulent flow of gaseous fluid to possess a resultant direction of flow at an angle other than parallel to the axes of the overlapping strands, and then moving the overlapping strands through the turbulent flow whereby the filaments of each of the strands become intertwined and randomly interwoven.
Claim 3
Dependent Claim
36 words
A method as defined in claim 3 and wherein the turbulent flow of gaseous fluid is constrained to possess a resultant direction of flow at a diverging angle relative to the axes of the overlapping strands.
Claim 4
Dependent Claim
22 words
A splice produced between two overlapped end portions of two strands of materials in accordance with the method defined in claim 4.
Claim 5
Independent Claim
136 words
An apparatus for splicing overlapped end portions of strands of material, each strand having a plurality of fibrils and comprising: a housing defining therewithin a chamber that is open at its ends through the housing, one end opening being larger than the other; said housing also defining a closeable opening that extends the length of the housing and into said chamber, and which closeable opening is adapted to receive therethrough into said chamber the overlapped strand end portiOns to be spliced with the remaining portions of the strands extending outside the housing through the chamber end openings; and said housing further defining conduits that extend through the housing and open into said chamber at opposed locations, said conduits being adapted to conduct therethrough into said chamber a gaseous fluid for creating a turbulence in the chamber.
Claim 6
Dependent Claim
30 words
An apparatus as defined in claim 6 and wherein said housing is formed of two halves that may be temporarily separated and brought together again to provide said closeable opening.
Claim 7
Dependent Claim
29 words
An apparatus as defined in claim 6 and wherein said housing has a movable sleeve that fits coextensively within the chamber and is adapted to close said closeable opening.
Claim 8
Dependent Claim
48 words
An apparatus as defined in claim 8 and wherein said movable sleeve defines along its length an opening that is coextensive with the closeable opening of said housing when the sleeve is moved to open position to enable admission into the chamber of said overlapped strand end portions.
Claim 9
Dependent Claim
64 words
An apparatus as defined in claim 9 and wherein said movable sleeve has a handle for moving the sleeve to an open position wherein the opening of the sleeve is coextensive with the closeable opening of the housing and to a closed position for closing said closeable opening, said handle further forming one of said conduits through which said gaseous fluid may be conducted.
Claim 10
Dependent Claim
22 words
An apparatus as defined in claim 6 and wherein the chamber defined within said housing has the configuration of a truncated cone.
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) | 1974-05-31 | 1974-11-30 | 1975-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-31 | 1978-11-30 | 1979-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-31 | 1982-11-30 | 1983-06-01 | $7700.00 | Window Closed / Lapsed |