US3717532A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for producing controllably oriented fibrous product
Assignee: Individual
•
Filing: 1970-12-24
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Granted: 1973-02-20
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Expires: 1990-12-24
Abstract
Abstract The method of making a non-woven fibrous pad comprising a threedimensional network of individual fibers interconnected by bonding means where they cross and contact each other and having a surface textured with a pattern of undulating elevations separated by a respective pattern of undulating depressions wherein each of the elevations comprises a structural dome in which the ratio of cap wall unit weight to average web unit weight is less than 1.0. The method includes the step of subjecting an unbonded web of mechanically engaged fibers to successive forming operations between partly meshing, multiple cogged work members relocating fibers from the regions forming the peaks of the elevations to the regions forming the sidewalls thereof. Apparatus for producing such a fibrous pad comprises a pair of fiber orienting arrangements, one of which includes means forming a traveling cog surface and the other of which includes a plurality of synchronized cog members meshing successively with the cog surface. One of the fiber orienting arrangements includes a plurality of closely laterally spaced cog elements having channels therebetween aligned generally with the direction of travel of the cog surface, and a conveyor belt arrangement is disposed partly in the channels and diverges from a meshed region of the fiber orienting arrangements for feeding a fibrous web into the orienting arrangements or stripping a processed web therefrom.
Inventors
- 👤 E Kamp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:09
CPC Classifications
B; B31; B31F; B31F1/00; B31F1/07; B31F2201/00; B31F2201/07; B31F2201/0707; B31F2201/0715; B31F2201/0723; B31F2201/0728; B31F2201/0733; B31F2201/0738; B31F2201/0741; B31F2201/0743; B31F2201/0754; B31F2201/0756; B31F2201/0758; B31F2201/0771; B31F2201/0774; B31F2201/0784; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1007; Y10T428/00; Y10T428/24; Y10T428/24628; Y10T428/24636; Y10T428/29; Y10T428/2904
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
49 words
Apparatus for producing a non-woven fibrous pad comprising: first fiber orienting means including means forming a continuous traveling cog surface; and second fiber orienting means including a plurality of individual transversely extending synchronized cog-surfaced members spaced in the direction of travel and meshing successively with said traveling cog surface.
Claim 2
Dependent Claim
49 words
Apparatus for producing a non-woven fibrous pad comprising: first fiber orienting means including means forming a continuous traveling cog surface; and second fiber orienting means including a plurality of individual transversely extending synchronized cog-surfaced members spaced in the direction of travel and meshing successively with said traveling cog surface.
Claim 3
Dependent Claim
19 words
ApparatUs according to claim 1 wherein said traveling cog surface is arranged on the periphery of a cylindrical drum.
Claim 4
Dependent Claim
75 words
Apparatus for producing a non-woven fibrous pad comprising: first fiber orienting means including means forming a continuous traveling cog surface; second fiber orienting means including a plurality of individual transversely extending synchronized cog-surfaced members spaced in the direction of travel and meshing successively with said traveling cog surface; and stripping means for stripping a processed web from said first fiber orienting means after the final engagement of said web by said second fiber orienting means.
Claim 5
Dependent Claim
75 words
Apparatus for producing a non-woven fibrous pad comprising: first fiber orienting means including means forming a continuous traveling cog surface; second fiber orienting means including a plurality of individual transversely extending synchronized cog-surfaced members spaced in the direction of travel and meshing successively with said traveling cog surface; and stripping means for stripping a processed web from said first fiber orienting means after the final engagement of said web by said second fiber orienting means.
Claim 6
Dependent Claim
19 words
Apparatus according to claim 3 wherein said traveling cog surface is arranged on the periphery of a cylindrical drum.
Claim 7
Dependent Claim
24 words
Apparatus according to claim 3 wherein said stripping means includes an air stream directed between said processed web and said first fiber orienting means.
Claim 8
Dependent Claim
122 words
Apparatus for producing a non-woven fibrous pad comprising: first fiber orienting means including means forming a continuous traveling cog surface; second fiber orienting means including a plurality of individual transversely extending synchronized cog-surfaced members spaced in the direction of travel and meshing successively with said traveling cog surface, one of said first and second fiber orienting means including a plurality of closely laterally spaced cog elements having channel means therebetween running generally in the direction of travel of said traveling cog surface; and conveyor belt means disposed partly in said channel means and diverging from a meshed region of said first and second fiber orienting means for feeding a fibrous web into said fiber orienting means or stripping a processed web therefrom.
Claim 9
Dependent Claim
122 words
Apparatus for producing a non-woven fibrous pad comprising: first fiber orienting means including means forming a continuous traveling cog surface; second fiber orienting means including a plurality of individual transversely extending synchronized cog-surfaced members spaced in the direction of travel and meshing successively with said traveling cog surface, one of said first and second fiber orienting means including a plurality of closely laterally spaced cog elements having channel means therebetween running generally in the direction of travel of said traveling cog surface; and conveyor belt means disposed partly in said channel means and diverging from a meshed region of said first and second fiber orienting means for feeding a fibrous web into said fiber orienting means or stripping a processed web therefrom.
Claim 10
Dependent Claim
19 words
Apparatus according to claim 6 wherein said traveling cog surface is arranged on the periphery of a cylindrical drum.
Claim 11
Dependent Claim
28 words
Apparatus according to claim 6 wherein said conveyor belt means includes laterally spaced belt elements running generally parallel with the direction of travel of said traveling cog surface.
Claim 12
Dependent Claim
61 words
Apparatus according to claim 6 wherein said conveyor belt means includes first belt elements running generally parallel with the direction of travel of said traveling cog surface directly beneath the fibrous web being processed through said apparatus and second belt elements running parallel to said first belt elements in the same direction directly above and in contact with said fibrous web.
Claim 13
Dependent Claim
46 words
Apparatus according to claim 6 wherein said conveyor belt means includes first and second belt elements running generally parallel with the direction of travel of said traveling cog surface and third belt elements running transversely of said first belt elements and connected thereto forming a mesh.
Claim 14
Dependent Claim
18 words
Apparatus according to claim 6 wherein said conveyor belt means comprises a plurality of round extruded elastomer belts.
Claim 15
Dependent Claim
10 words
Apparatus according to claim 11 wherein said elastomer is polyurethane.
Claim 16
Independent Claim
90 words
The method of producing a non-woven fibrous pad possessed of a surface textured with a pattern of undulating elevations separated by a respective pattern of undulating depressions from an unbonded web of mechanically engaged fibers, which method comprises: feeding said web to a processing station; subjecting said web to successive forming operations between partly meshing, multiple cogged work members relocating fibers from the regions forming the peaks of said elevations to the regions forming the sidewalls thereof; and bonding said formed web to lock said fibers in their reoriented relationship.
Claim 17
Independent Claim
90 words
The method of producing a non-woven fibrous pad possessed of a surface textured with a pattern of undulating elevations separated by a respective pattern of undulating depressions from an unbonded web of mechanically engaged fibers, which method comprises: feeding said web to a processing station; subjecting said web to successive forming operations between partly meshing, multiple cogged work members relocating fibers from the regions forming the peaks of said elevations to the regions forming the sidewalls thereof; and bonding said formed web to lock said fibers in their reoriented relationship.
Claim 18
Dependent Claim
21 words
The method according to claim 13 wherein said successive forming operations are performed with the web in a substantially dry state.
Claim 19
Dependent Claim
31 words
The method according to claim 13 wherein first forming operations work principally on one side of the web and second forming operations work principally on the opposite side of the web.
Claim 20
Independent Claim
138 words
The method of producing a non-woven fibrous pad possessed of a surface textured with a pattern of undUlating elevations separated by a respective pattern of undulating depressions from an unbonded web of mechanically engaged fibers, which method comprises: supporting said web on a cogged surface; rotating a first correspondingly cogged drum means in partly meshed engagement with said surface, the cog teeth of said drum means wiping into said web to form said depressions and elevations; rotating a second correspondingly cogged drum means in partly meshed engagement with said surface and subsequent to said first drum means, the cog teeth of said second drum means engaging said depressions and elevations to relocate fibers from the respective crest and root regions thereof to the sidewall regions; and bonding said formed web to lock said fibers in their reoriented relationship.
Claim 21
Independent Claim
138 words
The method of producing a non-woven fibrous pad possessed of a surface textured with a pattern of undUlating elevations separated by a respective pattern of undulating depressions from an unbonded web of mechanically engaged fibers, which method comprises: supporting said web on a cogged surface; rotating a first correspondingly cogged drum means in partly meshed engagement with said surface, the cog teeth of said drum means wiping into said web to form said depressions and elevations; rotating a second correspondingly cogged drum means in partly meshed engagement with said surface and subsequent to said first drum means, the cog teeth of said second drum means engaging said depressions and elevations to relocate fibers from the respective crest and root regions thereof to the sidewall regions; and bonding said formed web to lock said fibers in their reoriented relationship.
Claim 22
Dependent Claim
18 words
The method according to claim 16 wherein said second drum means comprises a plurality of cogged drum elements.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-02-20 | 1976-08-21 | 1977-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-20 | 1980-08-21 | 1981-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-20 | 1984-08-21 | 1985-02-20 | $7700.00 | Window Closed / Lapsed |