Patent US3861608A successfully refreshed from Google Patents.
US3861608A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Traversing mechanism
Assignee: Johns Manville Corp
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Filing: 1973-10-29
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Granted: 1975-01-21
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Expires: 1993-10-29
Abstract
Abstract An apparatus for winding continuous strands of material about rotating cores to form strand packages is provided with primary traversing mechanisms which impart a primary traversing motion to the strands as they are being wound on the packages whereby the strands progress and regress to define a series of bights. A secondary traversing mechanism is provided to impart a secondary traversing motion of the strands relative to the packages to advance the series of bights back and forth across the peripheral face of the packages. The primary traversing mechanisms each comprise a first series and a second series of cam members having outwardly facing convex surfaces for engaging the strands. The convex surfaces of the cam members of the first and second series face in opposing directions with the convex surfaces for successive cam members of each series being progressively displaced relative to preceding cam members in a direction parallel to the axis of rotation of the traversing mechanism. With this construction the first series of cam members move the strands in one direction and the second series of cam members move the strands in an opposite direction.
Inventors
- 👤 John Gilbert Mohr
- 👤 James William Hartman
- 👤 David Michael Arno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:39
CPC Classifications
B; B65; B65H; B65H54/00; B65H54/02; B65H54/28; B65H54/2836; B65H54/2845; B65H2701/00; B65H2701/30; B65H2701/31; Y; Y10; Y10S; Y10S242/00; Y10S242/92
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
331 words
An apparatus for winding a plurality of continuous strands of flexible material about a core to form a package which apparatus includes a source of said strands, means for rotating said core about a first axis, a traversing mechanism rotatable about a second axis parallel to said first axis and adjacent to a peripheral surface of said package for imparting primary traversing motions to said strands as they are being wound on said package whereby said strands progress and regress to define a series of bights, and means for imparting a secondary traversing motion to the strands relative to the package to advance the series of bights across the peripheral surface of the package, the improvement comprising: said traversing mechanism comprising a first series of cam members and a second series of cam members, mounting means for suPporting said cam members in fixed relative positions for rotation about the axis of rotation of said traversing mechanism, each of said cam member lying in a plane containing the axis of rotation of rotation of said traversing mechanism, each of said cam members having an outwardly facing convex surface extending in a direction parallel to the axis of rotation of said traversing mechanism for engaging the strands, said convex surfaces of said first series facing in a first direction and said convex surfaces of said second series facing in a second direction opposing said first direction with said convex surfaces for succesisve cam members of said cam members of both of said series being progressively displaced relative to said convex surfaces of preceding cam members of said cam members in a direction parallel to the axis of rotation of said traversing mechanism whereby the first series of cam members move the strands in said first direction and the second series of cam members move said strands in said second direction while maintaining the strands in a split relationship for the major portion of their movement and bringing said strands together at spaced intervals.
Claim 2
Independent Claim
331 words
An apparatus for winding a plurality of continuous strands of flexible material about a core to form a package which apparatus includes a source of said strands, means for rotating said core about a first axis, a traversing mechanism rotatable about a second axis parallel to said first axis and adjacent to a peripheral surface of said package for imparting primary traversing motions to said strands as they are being wound on said package whereby said strands progress and regress to define a series of bights, and means for imparting a secondary traversing motion to the strands relative to the package to advance the series of bights across the peripheral surface of the package, the improvement comprising: said traversing mechanism comprising a first series of cam members and a second series of cam members, mounting means for suPporting said cam members in fixed relative positions for rotation about the axis of rotation of said traversing mechanism, each of said cam member lying in a plane containing the axis of rotation of rotation of said traversing mechanism, each of said cam members having an outwardly facing convex surface extending in a direction parallel to the axis of rotation of said traversing mechanism for engaging the strands, said convex surfaces of said first series facing in a first direction and said convex surfaces of said second series facing in a second direction opposing said first direction with said convex surfaces for succesisve cam members of said cam members of both of said series being progressively displaced relative to said convex surfaces of preceding cam members of said cam members in a direction parallel to the axis of rotation of said traversing mechanism whereby the first series of cam members move the strands in said first direction and the second series of cam members move said strands in said second direction while maintaining the strands in a split relationship for the major portion of their movement and bringing said strands together at spaced intervals.
Claim 3
Dependent Claim
56 words
The improvement as defined in claim 1 wherein: there are four of said cam members in each series with each of said cam members being spaced 45* from adjacent cam members and with said cam members of said first and second series being spaced 180* from said cam members of the other series which are complementary.
Claim 4
Dependent Claim
46 words
The improvement as defined in claim 1 wherein each of said convex surfaces of said cam members has substantially the same radius of curvature with said cam members of said first and said second series which are spaced apart 180* being mirror images of each other.
Claim 5
Dependent Claim
36 words
The improvement as defined in claim 1 wherein each of said cam members has limiting means adjacent an inner end of said convex surfaces of said cam member for limiting the spacing between said split strands.
Claim 6
Dependent Claim
39 words
The improvement as defined in claim 4 wherein said limiting means comprises a second surface of said cam member merging with said convex surface end extending generally parallel with respect to said axis of rotation of said traversing mechanism.
Claim 7
Dependent Claim
26 words
The improvement as defined in claim 5 wherein the radius of curvature of said convex surface of each of said cam members is about five inches.
Claim 8
Dependent Claim
65 words
The improvement as defined in claim 6 wherein said second surface is spaced radially outward from said axis of rotation of said traversing mechanism with minimum and maximum effective diameters of strand contact surfaces defined by said second surface and said convex surface of said traverse mechanism being about 3 + or - 1 inches and about 4- 1/2 + or - 1 inches respectively.
Claim 9
Dependent Claim
35 words
The improvement as defined in claim 6 wherein minimum and maximum effective diameters of strand contacting surfaces of second surface and said convex surface are about 2- 1/2 inches and about 1- 1/2 inches respectively.
Claim 10
Dependent Claim
35 words
The improvement as defined in claim 6 wherein maximum and minimum effective diameters of strand contacting surfaces of said second surface and said convex surface differ by about 1 inch to about 1- 1/2 inches.
Claim 11
Dependent Claim
27 words
The improvement as defined in claim 1 wherein the radius of curvature for the convex surface of each of said cam members is about 2- 1/2 inches.
Claim 12
Dependent Claim
33 words
The improvement as defined in claim 1 wherein: said cam members are rods having rounded surfaces for contacting said strands with said cam members contacting said strands at spaced points along said strands.
References Cited (Backward Citations)
US2391870A
Cited
US3056711A
Cited
US3040999A
Cited
US2989258A
Cited
US3292872A
Cited
US3356304A
Cited
US3399841A
Cited
US3414956A
Cited
US3695523A
Cited
US3784121A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-01-20 | 1978-07-22 | 1979-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-20 | 1982-07-22 | 1983-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-20 | 1986-07-22 | 1987-01-21 | $7700.00 | Window Closed / Lapsed |