US3865565A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for gathering filaments into strands
Assignee: Owens Corning
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Filing: 1970-12-21
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Granted: 1975-02-11
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Expires: 1990-12-21
Abstract
Abstract Apparatus for gathering continuous glass filaments, as they are drawn downwardly as a converging body from a filament forming bushing, into a plurality of strand groups, directing the strand groups in passing contact with a size applicator, and guiding the finally compacted strands in close array to a pull wheel, the initial separation of the filaments into strand groups being accomplished by the temporary, horizontal projection of parallel graphite fingers through the body of filaments immediately above the size applicator, the maintenance of the strand groups and subsequent guiding of the strands being secured through a saw tooth comb placed just below and of a length comparable to that of the size applicator and a comparatively short shoe with a plurality of grooves positioned adjacent the pull wheel.
Inventors
- 👤 Harry E Spence
- 👤 Charles B Warden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 07:41
CPC Classifications
C; C03; C03C; C03C25/00; C03C25/10; C03C25/12; C03C25/20; C03B; C03B37/00; C03B37/01; C03B37/02; C03B37/03
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
157 words
Apparatus for drawing filaments from a molten glass source, gathering the filaments in a plurality of strands and depositing the strands upon a collecting surface to form a mat, said apparatus comprising an elongated multiple orifice bushing for delivering minute streams of molten glass, rotary means below said bushing peripherally receiving and applying pulling force upon the strands and therethrough continuously drawing the streams of molten glass into attenuated filaments, said rotary means projecting the strands onto the collecting surface, a multiple grooved filament gathering shoe adjacent said rotary means to which the filaments descend from said bushing in converging fan formation and are received in strand groups which are individually and separately compacted into strands in individual grooves of said gathering shoe, a second shoe having a single groove for initially receiving the filaments in a single strand for pulling by said rotary means, and means for withdrawing said second shoe from engagement with the filaments.
Claim 2
Dependent Claim
157 words
Apparatus for drawing filaments from a molten glass source, gathering the filaments in a plurality of strands and depositing the strands upon a collecting surface to form a mat, said apparatus comprising an elongated multiple orifice bushing for delivering minute streams of molten glass, rotary means below said bushing peripherally receiving and applying pulling force upon the strands and therethrough continuously drawing the streams of molten glass into attenuated filaments, said rotary means projecting the strands onto the collecting surface, a multiple grooved filament gathering shoe adjacent said rotary means to which the filaments descend from said bushing in converging fan formation and are received in strand groups which are individually and separately compacted into strands in individual grooves of said gathering shoe, a second shoe having a single groove for initially receiving the filaments in a single strand for pulling by said rotary means, and means for withdrawing said second shoe from engagement with the filaments.
Claim 3
Dependent Claim
52 words
Apparatus according to claim 1 in which said multiple grooved shoe and said second shoe are mounted on opposite ends of a pivotable means whereby as said second shoe is swung downwardly and laterally away from engagement with the filaments said multiple grooved shoe is swung upwardly and laterally into engagement therewith.
Claim 4
Dependent Claim
214 words
Apparatus for drawing filaments from a molten glass source, gathering the filaments in a plurality of strands and depositing the strands upon a collecting surface to form a mat, said apparatus comprising a mUltiple orifice bushing for delivering minute streams of molten glass, rotary means below said bushing peripherally receiving and applying pulling force upon the strands and therethrough continuously drawing the streams of molten glass into attenuated filaments, a first shoe having a single groove and positioned laterally adjacent said rotary means to which the filaments descend in converging fan formation and which initially receives the filaments as a single combined strand for transfer to said rotary means, a multiple grooved shoe, mounting means for said shoes, means for relatively moving said mounting means whereby said multiple grooved shoe is brought into engagement with the fan of filaments above said first shoe to divide and compact the filaments into separate strands in the grooves of said multiple grooved shoe and to disengage the filaments from said first shoe, means for releasing the multiple strands delivered thereto from said multiple grooved shoe from the peripheral surface of said rotary means whereby they are propelled downwardly therefrom, and means providing a collecting surface positioned below the rotary means for collecting the strands into a mat.
Claim 5
Dependent Claim
214 words
Apparatus for drawing filaments from a molten glass source, gathering the filaments in a plurality of strands and depositing the strands upon a collecting surface to form a mat, said apparatus comprising a mUltiple orifice bushing for delivering minute streams of molten glass, rotary means below said bushing peripherally receiving and applying pulling force upon the strands and therethrough continuously drawing the streams of molten glass into attenuated filaments, a first shoe having a single groove and positioned laterally adjacent said rotary means to which the filaments descend in converging fan formation and which initially receives the filaments as a single combined strand for transfer to said rotary means, a multiple grooved shoe, mounting means for said shoes, means for relatively moving said mounting means whereby said multiple grooved shoe is brought into engagement with the fan of filaments above said first shoe to divide and compact the filaments into separate strands in the grooves of said multiple grooved shoe and to disengage the filaments from said first shoe, means for releasing the multiple strands delivered thereto from said multiple grooved shoe from the peripheral surface of said rotary means whereby they are propelled downwardly therefrom, and means providing a collecting surface positioned below the rotary means for collecting the strands into a mat.
Claim 6
Dependent Claim
22 words
Apparatus according to claim 3 in which said multiple grooved shoe is initially positioned between said first shoe and said rotary means.
Claim 7
Dependent Claim
22 words
Apparatus according to claim 3 in which said means for relatively moving the mounting means for the shoes includes a pivotable bar.
Claim 8
Dependent Claim
23 words
Apparatus according to claim 5 in which said multiple grooved shoe and said first shoe are mounted on opposite ends of said bar.
Claim 9
Independent Claim
172 words
A method of drawing filaments and gathering the filaments in a closely arrayed set of strands and forming a mat which comprises drawing filaments in a downwardly converging fan formation from minute streams of molten glass issuing from a molten glass source, gathering the filaments at the apex of the fan formation into a single strand below the molten glass source and adjacent to means by which the filaments are drawn, moistening the filaments after they are first formed, then dividing the filaments of the converging fan formation into strand groups by inserting elements therebetween, thereafter applying a lubricating size to the filaments of the strand groups, after the application of the size inserting members between the strand groups of filaments to maintain their independent integrity while still in fan formation, dividing the single strand into the established strand groups of filaments and consolidating them into compact strands for receipt by the means by which the filaments are drawn, and depositing the compact strands on a collecting surface to form a mat.
Claim 10
Independent Claim
172 words
A method of drawing filaments and gathering the filaments in a closely arrayed set of strands and forming a mat which comprises drawing filaments in a downwardly converging fan formation from minute streams of molten glass issuing from a molten glass source, gathering the filaments at the apex of the fan formation into a single strand below the molten glass source and adjacent to means by which the filaments are drawn, moistening the filaments after they are first formed, then dividing the filaments of the converging fan formation into strand groups by inserting elements therebetween, thereafter applying a lubricating size to the filaments of the strand groups, after the application of the size inserting members between the strand groups of filaments to maintain their independent integrity while still in fan formation, dividing the single strand into the established strand groups of filaments and consolidating them into compact strands for receipt by the means by which the filaments are drawn, and depositing the compact strands on a collecting surface to form a mat.
Claim 11
Independent Claim
152 words
A method of drawing filaments and gathering the filaments in a closely arrayed set of strands and forming a mat which comprises drawing filaments in downwardly converging fan formation from minute streams of molten glass issuing from a molten glass source, moistening the filaments after they are first formed, then dividing the filaments of the converging fan formation into strand groups by inserting elements there-between, thereafter applying lubricating size to the filaments of the strand groups, after the application of the size inserting members between the strand groups of filaments to maintain their independent integrity while still in fan formation, consolidating the strand groups of filaments at the apex of the fan formation into compact strands for receipt by the means by which the filaments are drawn, withdrawing the elements by which the filaments were divided into strand groups, and depositing the compact strands on a collecting surface to form a mat.
Claim 12
Independent Claim
152 words
A method of drawing filaments and gathering the filaments in a closely arrayed set of strands and forming a mat which comprises drawing filaments in downwardly converging fan formation from minute streams of molten glass issuing from a molten glass source, moistening the filaments after they are first formed, then dividing the filaments of the converging fan formation into strand groups by inserting elements there-between, thereafter applying lubricating size to the filaments of the strand groups, after the application of the size inserting members between the strand groups of filaments to maintain their independent integrity while still in fan formation, consolidating the strand groups of filaments at the apex of the fan formation into compact strands for receipt by the means by which the filaments are drawn, withdrawing the elements by which the filaments were divided into strand groups, and depositing the compact strands on a collecting surface to form a mat.
Claim 13
Independent Claim
125 words
A method for drawing filaments from a molten glass source, gathering the filaments in a plurality of strands and forming a mat from the strands which comprises downwardly drawing streams of molten glass from an elongated multiple orifice bushing into attenuated filaments descending in downwardly converging fan formation, projecting parallel spaced fingers into thE fan of filaments to separate them into strand groups, depositing size on the filaments in the strand groups, introducing members between the strand groups after the size has been deposited thereon to maintain them in separate relation in the fan formation, at the apex of the fan formation of filaments compacting the strand groups of filaments into strands, and depositing the compacted strands on a collecting surface to form a mat.
Claim 14
Independent Claim
125 words
A method for drawing filaments from a molten glass source, gathering the filaments in a plurality of strands and forming a mat from the strands which comprises downwardly drawing streams of molten glass from an elongated multiple orifice bushing into attenuated filaments descending in downwardly converging fan formation, projecting parallel spaced fingers into thE fan of filaments to separate them into strand groups, depositing size on the filaments in the strand groups, introducing members between the strand groups after the size has been deposited thereon to maintain them in separate relation in the fan formation, at the apex of the fan formation of filaments compacting the strand groups of filaments into strands, and depositing the compacted strands on a collecting surface to form a mat.
Claim 15
Dependent Claim
213 words
Apparatus for drawing filaments from a molten glass source, gathering the filaments in a plurality of strands and depositing the strands upon a collecting surface to form a mat, said apparatus comprising an elongated multiple orifice bushing for delivering minute streams of molten glass, rotary means below said bushing peripherally receiving and applying pulling force upon the strands and therethrough continuously drawing the streams of molten glass into attenuated filaments, said rotary means projecting the strands onto the collecting surface, a multiple grooved filament gathering shoe adjacent said rotary means to which the filaments descend from the elongated bushing in converging fan formation and are received in strand groups which are individually and separately compacted into strands in individual grooves of said gathering shoe, an applicator depositing size on the filaments as they travel downwardly from said bushing to said gathering shoe, divider means above said applicator with parallel spaced fingers, means movably mounting said divider means by which said fingers may be temporarily projected into the fan of filaments to initially separate them into strand groups for receipt by said gathering shoe, and a comb positioned between said applicator and said gathering shoe having teeth projecting between strand groups of the fan of filaments to maintain the filaments in said strand groups.
Claim 16
Dependent Claim
213 words
Apparatus for drawing filaments from a molten glass source, gathering the filaments in a plurality of strands and depositing the strands upon a collecting surface to form a mat, said apparatus comprising an elongated multiple orifice bushing for delivering minute streams of molten glass, rotary means below said bushing peripherally receiving and applying pulling force upon the strands and therethrough continuously drawing the streams of molten glass into attenuated filaments, said rotary means projecting the strands onto the collecting surface, a multiple grooved filament gathering shoe adjacent said rotary means to which the filaments descend from the elongated bushing in converging fan formation and are received in strand groups which are individually and separately compacted into strands in individual grooves of said gathering shoe, an applicator depositing size on the filaments as they travel downwardly from said bushing to said gathering shoe, divider means above said applicator with parallel spaced fingers, means movably mounting said divider means by which said fingers may be temporarily projected into the fan of filaments to initially separate them into strand groups for receipt by said gathering shoe, and a comb positioned between said applicator and said gathering shoe having teeth projecting between strand groups of the fan of filaments to maintain the filaments in said strand groups.
Claim 17
Dependent Claim
172 words
Apparatus for drawing filaments from a molten glass source, gathering the filaments in a plurality of strands and depositing the strands upon a collecting surface to form a mat, said apparatus comprising an elongated multiple orifice bushing for delivering minute streams of molten glass, rotary means below said bushing peripherally receiving and applying pulling force upon the strands and therethrough continuously drawing the streams of molten glass into attenuated filaments, said rotary means projecting the strands onto the collecting surface, a multiple grooved filament gathering shoe laterally positioned adjacent said rotary means to which the filaments descend from the elongated bushing in converging fan formation and are received in strand groups which are individually and separately compacted into strands in individual grooves of said gathering shoe, an applicator located between said bushing and said gathering shoe for applying size to the filaments, and a plurality of parallel spaced elements mounted adjacent said applicator and projecting into the fan of filaments to separate them into strand groups for receipt by the gathering shoe.
Claim 18
Dependent Claim
172 words
Apparatus for drawing filaments from a molten glass source, gathering the filaments in a plurality of strands and depositing the strands upon a collecting surface to form a mat, said apparatus comprising an elongated multiple orifice bushing for delivering minute streams of molten glass, rotary means below said bushing peripherally receiving and applying pulling force upon the strands and therethrough continuously drawing the streams of molten glass into attenuated filaments, said rotary means projecting the strands onto the collecting surface, a multiple grooved filament gathering shoe laterally positioned adjacent said rotary means to which the filaments descend from the elongated bushing in converging fan formation and are received in strand groups which are individually and separately compacted into strands in individual grooves of said gathering shoe, an applicator located between said bushing and said gathering shoe for applying size to the filaments, and a plurality of parallel spaced elements mounted adjacent said applicator and projecting into the fan of filaments to separate them into strand groups for receipt by the gathering shoe.
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) | 1978-02-10 | 1978-08-12 | 1979-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-10 | 1982-08-12 | 1983-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-10 | 1986-08-12 | 1987-02-11 | $7700.00 | Window Closed / Lapsed |