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US3710430A
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Method for optimizing the making of a laminated fibrous strip
Assignee: Westinghouse Electric Corp
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Filing: 1971-06-21
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Granted: 1973-01-16
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Expires: 1991-06-21
Abstract
Abstract A method for preparing a fibrous laminated strip on an elongated supporting surface, using a continuous fiber shredding apparatus having X shredders each cutting and applying P fibers/min., the strip consisting of N laminated layers of shredded metal fibers having a total weight per unit area of W gr./in2, the fibers having a thickness of f1 in., a width of f2 in. and a density of d gr./cu. in., the fibers of each layer being disposed at an orientation angle theta from the longitudinal axis of the supporting surface; the method comprising the steps: (1) forming a layer having a weight per unit area of w gr./in2 by applying P fibers/min. on the elongated supporting surface in a longitudinal direction, the fibers being disposed substantially parallel to each other and at an angle theta of between 15* and 75* from the longitudinal axis of the elongated supporting surface, the fibers being applied to the supporting surface at a traverse speed of Q in./min. and then (2) forming N layers by applying, at a speed Q, additional layers of loose thin metal fibers substantially parallel to each other within a layer, to cover the previous layer at an angle from the longitudinal axis of the elongated supporting surface alternating between theta and theta '' where theta '' theta wherein the following relationship exists: Q X((d)(N)(P)(f2)/(W)(sin theta or theta '')).
Inventors
- 👤 A Long
- 👤 J Seidel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:51
CPC Classifications
D; D04; D04H; D04H1/00; D04H1/70; D04H1/74; H; H01; H01M; H01M4/00; H01M4/02; H01M4/64; H01M4/70; H01M4/72; H01M4/74; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y10; Y10T; Y10T29/00; Y10T29/10; Y10T29/14; Y10T29/49; Y10T29/496; Y10T29/49604; Y10T29/49801
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
147 words
In the method of preparing a laminated fibrous strip wherein a single layer of shredded metal fibers are applied on an elongated supporting surface, the single layer having the weight of w gr/in2, the fibers being shredded by a single shredder at the rate of P fibers/min., the fibers having a thickness of f1 in., a width of f2 in. and a density of d gr/in3, the fibers being disposed substantially parallel to each other and at an angle theta of between 15* and 75* from the longitudinal axis of the elongated supporting surface, the improvement comprising the step of moving the shredder over the elongated supporting surface in a single back and forth traversing motion in the direction of the longitudinal axis of the supporting surface at a speed of Q in./min., wherein the following relationship exists: Q P(f1 X f2 X d)/(w sin theta ).
Claim 2
Dependent Claim
147 words
In the method of preparing a laminated fibrous strip wherein a single layer of shredded metal fibers are applied on an elongated supporting surface, the single layer having the weight of w gr/in2, the fibers being shredded by a single shredder at the rate of P fibers/min., the fibers having a thickness of f1 in., a width of f2 in. and a density of d gr/in3, the fibers being disposed substantially parallel to each other and at an angle theta of between 15* and 75* from the longitudinal axis of the elongated supporting surface, the improvement comprising the step of moving the shredder over the elongated supporting surface in a single back and forth traversing motion in the direction of the longitudinal axis of the supporting surface at a speed of Q in./min., wherein the following relationship exists: Q P(f1 X f2 X d)/(w sin theta ).
Claim 3
Independent Claim
198 words
The method of preparing a laminated strip, wherein X shredders are used for applying on an elongated supporting surface shredded metal fibers which define a matrix of N distinct layers, the matrix having the weight of W gr/in2, the fibers being shredded by each shredder at the rate of P fibers/min., the fibers having a thickness of f1 in., a width of f2 in. and a density of d gr/in3, the fibers in each layer being disposed substantially parallel to each other and at an angle theta of between 15* and 75* from the longitudinal axis of the elongated supporting surface, the improvement comprising the steps of moving the X shredders as a group over the elongated supporting surface in N traversing motions in the direction of the longitudinal axis of the supporting surface at a speed of Q in/min., the X shredders being grouped along the longitudinal axis of the surface alternately at angles theta theta '', which at the end of each traverse angles theta and theta '' change into angles theta '' and theta respectively, wherein the following relationship exists: Q XNP (f1 X f2 X d)/(W)(sin theta ) and the number of traverses N/X.
Claim 4
Independent Claim
198 words
The method of preparing a laminated strip, wherein X shredders are used for applying on an elongated supporting surface shredded metal fibers which define a matrix of N distinct layers, the matrix having the weight of W gr/in2, the fibers being shredded by each shredder at the rate of P fibers/min., the fibers having a thickness of f1 in., a width of f2 in. and a density of d gr/in3, the fibers in each layer being disposed substantially parallel to each other and at an angle theta of between 15* and 75* from the longitudinal axis of the elongated supporting surface, the improvement comprising the steps of moving the X shredders as a group over the elongated supporting surface in N traversing motions in the direction of the longitudinal axis of the supporting surface at a speed of Q in/min., the X shredders being grouped along the longitudinal axis of the surface alternately at angles theta theta '', which at the end of each traverse angles theta and theta '' change into angles theta '' and theta respectively, wherein the following relationship exists: Q XNP (f1 X f2 X d)/(W)(sin theta ) and the number of traverses N/X.
Claim 5
Dependent Claim
37 words
The method of claim 2 wherein the fiber length is between about 4 to 16 in. the fiber thickness is between about 0.0005 to 0.0030 in. and the fiber width is between about 0.0005 to 0.0030 in.
Claim 6
Dependent Claim
28 words
The mEthod of claim 3 wherein the elongated supporting surface is a belt movable in the longitudinal direction and the shredders are not moved in the longitudinal direction.
Claim 7
Dependent Claim
25 words
The method of claim 3 wherein the shredders are movable in the longitudinal direction and the supporting surface is not moved in the longitudinal direction.
Claim 8
Dependent Claim
27 words
The method of claim 3 wherein fibers of adjacent layers are disposed at an angle in opposite directions from the longitudinal axis of the elongated supporting surface.
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) | 1976-01-16 | 1976-07-17 | 1977-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-16 | 1980-07-17 | 1981-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-16 | 1984-07-17 | 1985-01-16 | $7700.00 | Window Closed / Lapsed |