US3755856A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for the formation of fiber fluff
Assignee: Kimberly Clark Corp
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Filing: 1971-04-23
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Granted: 1973-09-04
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Expires: 1991-04-23
Abstract
Abstract Wood pulp fiber batts of uniform and controlled density are produced by picking fibers from compacted wood pulp and impelling the fibers to a receiving surface passing beneath a multiplicity of panel-like dividers disposed to provide a forming chamber for a unitary batt and to substantially prevent turbulent air currents from the formation zone.
Inventors
- 👤 C Banks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 04:47
CPC Classifications
D; D21; D21H; D21H11/00; B; B27; B27L; B27L11/00; B27L11/08
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
160 words
In combination, in apparatus for forming a continuous layer of wood pulp fibers, roll picker means and a fiberizing bar for defiberizing to substantially individual fibers a mat of the wood pulp fibers, means for feeding a mat of the wood pulp fibers to the said bar and roll picker means, a forming chamber closely adjacent the periphery of and below the roll picker means, and a receiving surface communicating With said forming chamber, said forming chamber having a plurality of panels projecting longitudinally in the direction of the receiving surface in laterally spaced apart relation defining small compartments communicating the picker roll periphery and receiving surface, said panels inhibiting air flow between compartments and being disposed slightly above the receiving surface to provide a continuous laterally extending zone on the receiving surface for fiber deposition, the said forming chamber being open to the atmosphere below the fiberizing bar and the said receiving surface having communication with a vacuum chamber.
Claim 2
Dependent Claim
160 words
In combination, in apparatus for forming a continuous layer of wood pulp fibers, roll picker means and a fiberizing bar for defiberizing to substantially individual fibers a mat of the wood pulp fibers, means for feeding a mat of the wood pulp fibers to the said bar and roll picker means, a forming chamber closely adjacent the periphery of and below the roll picker means, and a receiving surface communicating With said forming chamber, said forming chamber having a plurality of panels projecting longitudinally in the direction of the receiving surface in laterally spaced apart relation defining small compartments communicating the picker roll periphery and receiving surface, said panels inhibiting air flow between compartments and being disposed slightly above the receiving surface to provide a continuous laterally extending zone on the receiving surface for fiber deposition, the said forming chamber being open to the atmosphere below the fiberizing bar and the said receiving surface having communication with a vacuum chamber.
Claim 3
Dependent Claim
33 words
Apparatus as claimed in claim 1 and in which panels defining the forming chamber extend in the direction of the receiving surface beyond the picker roll center from rearwardly of the picker roll.
Claim 4
Dependent Claim
46 words
Apparatus as claimed in claim 1 and in which the panels are supported by and depend from the fiberizing bar and have a contour conforming to that of the picker roll and extend from the fiberizing bar beneath the picker forwardly of the picking roll center.
Claim 5
Dependent Claim
142 words
Apparatus for forming a continuous layer of wood pulp fibers from a mat of such fibers, said apparatus comprising a movable fiber receiving surface, a housing disposed above said fiber receiving surface for passage of the fiber receiving surface relative to the housing, roll picker means within the housing, a fiberizing bar, means for feeding a said mat of the fibers to said fiberizing bar and roll picker means so that said mat may be defiberized substantially individual fibers, a forming chamber between the receiving surface and roll picker means and having a plurality of panels extending longitudinally with and above the receiving surface defining narrow compartments, said forming chamber having an opening to the atmosphere rearwardly of the compartments and below the fiberizing bar, and vacuum chamber means in communication with said opening through said receiving surface and said forming chamber.
Claim 6
Dependent Claim
142 words
Apparatus for forming a continuous layer of wood pulp fibers from a mat of such fibers, said apparatus comprising a movable fiber receiving surface, a housing disposed above said fiber receiving surface for passage of the fiber receiving surface relative to the housing, roll picker means within the housing, a fiberizing bar, means for feeding a said mat of the fibers to said fiberizing bar and roll picker means so that said mat may be defiberized substantially individual fibers, a forming chamber between the receiving surface and roll picker means and having a plurality of panels extending longitudinally with and above the receiving surface defining narrow compartments, said forming chamber having an opening to the atmosphere rearwardly of the compartments and below the fiberizing bar, and vacuum chamber means in communication with said opening through said receiving surface and said forming chamber.
Claim 7
Dependent Claim
53 words
Apparatus as claimed in claim 4 and in which a plurality of fiberizing bars and associated roll picker means are disposed in linear relation above a common receiving surface, and a forming chamber associated with each fiberizing bar-roll picker means combination, the panels of successive forming chambers being offset from each other laterally.
Claim 8
Independent Claim
124 words
The method of forming a batt of pulp fibers which comprises forming in air a plurality of streams of substantially individual fibers with said streams in longitudinally spaced apart relation, directing the fiber streams toward a longitudinally moving common surface so that the fibers of the streams are superposed in layers on the said surface, limiting lateral movement of the fibers of each stream as it approaches the common surface by guiding each stream through a plurality of parallel disposed compartments and so that each stream is subdivided laterally, at least one compartment of one said plurality of compartments being disposed in slightly offset relation laterally to compartments of a subsequent plurality of parallel disposed compartments so that fibers of successive streams overlap laterally.
Claim 9
Independent Claim
124 words
The method of forming a batt of pulp fibers which comprises forming in air a plurality of streams of substantially individual fibers with said streams in longitudinally spaced apart relation, directing the fiber streams toward a longitudinally moving common surface so that the fibers of the streams are superposed in layers on the said surface, limiting lateral movement of the fibers of each stream as it approaches the common surface by guiding each stream through a plurality of parallel disposed compartments and so that each stream is subdivided laterally, at least one compartment of one said plurality of compartments being disposed in slightly offset relation laterally to compartments of a subsequent plurality of parallel disposed compartments so that fibers of successive streams overlap laterally.
Claim 10
Independent Claim
126 words
The method of forming a batt of pulp fibers which comprises forming in air a plurality of streams of substantially individual fibers with said streams in longitudinally spaced apart relation, directing the fiber streams toward a longitudinally moving common surface so that the fibers of the streams are superposed in layers on the said surface, limiting lateral movement of the fibers of each stream as it approaches the common surface by guiding each stream through a plurality of parallel disposed compartments and so that each stream is subdivided laterally, and forming initially one of said streams of said plurality of streams of a width which is significantly less than the width of at least one other of said streams so that a contoured batt is formed.
Claim 11
Independent Claim
126 words
The method of forming a batt of pulp fibers which comprises forming in air a plurality of streams of substantially individual fibers with said streams in longitudinally spaced apart relation, directing the fiber streams toward a longitudinally moving common surface so that the fibers of the streams are superposed in layers on the said surface, limiting lateral movement of the fibers of each stream as it approaches the common surface by guiding each stream through a plurality of parallel disposed compartments and so that each stream is subdivided laterally, and forming initially one of said streams of said plurality of streams of a width which is significantly less than the width of at least one other of said streams so that a contoured batt is formed.
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) | 1976-09-03 | 1977-03-05 | 1977-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-03 | 1981-03-05 | 1981-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-03 | 1985-03-05 | 1985-09-04 | $7700.00 | Window Closed / Lapsed |