US4606608A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and apparatus for preparing glass fibers coated with amorphous metallic alloy, and fibers coated thereby
Assignee: The AT&T MVPD Group LLC
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Filing: 1985-02-04
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Granted: 1986-08-19
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Expires: 2005-02-04
Abstract
Abstract A process and apparatus for preparing a glass fiber circumferentially coated with an amorphous metallic alloy, wherein the glass fiber is drawn to substantially its final diameter and then coated with amorphous metallic alloy. The coating is accomplished by passing the drawn glass fiber vertically through an opening formed between two circumferentially abutting, counter-rotating, circumferentially grooved rolls having a pool of a glass-forming alloy continuously supplied from a crucible and supported in the nip of the rolls adjacent the opening. The drawn glass fiber first passes through the pool of molten alloy and then immediately into the opening defined between the two rolls, whereby the metallic alloy coated onto the drawn glass fiber is rapidly cooled to form an amorphous coating.
Inventors
- 👤 Joseph A. Wysocki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:15
CPC Classifications
C; C03; C03C; C03C25/00; C03C25/10; C03C25/12; C03C25/104; C03C25/106; C03C25/1061; C03C25/1063; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/294; Y10T428/2942; Y10T428/2944; Y10T428/2958
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
83 words
A process for preparing a length of glass fiber coated with an amorphous metallic coating, comprising the steps of: drawing a length of glass fiber; coating the length of glass fiber with a glass-forming liquid metallic alloy to form a liquid metal-coated fiber, said step of coating to occur immediately after, but continuously with, said step of drawing; and solidifying the liquid layer of the liquid-coated fiber at a cooling rate sufficiently high to form an amorphous metallic coating on the glass fiber.
Claim 2
Dependent Claim
83 words
A process for preparing a length of glass fiber coated with an amorphous metallic coating, comprising the steps of: drawing a length of glass fiber; coating the length of glass fiber with a glass-forming liquid metallic alloy to form a liquid metal-coated fiber, said step of coating to occur immediately after, but continuously with, said step of drawing; and solidifying the liquid layer of the liquid-coated fiber at a cooling rate sufficiently high to form an amorphous metallic coating on the glass fiber.
Claim 3
Dependent Claim
15 words
The process of claim 1, wherein said step of drawing is accomplished without a die.
Claim 4
Dependent Claim
28 words
The process of claim 1, wherein the glass fiber comprises a central core of a first type of glass and a cladding of a second type of glass.
Claim 5
Dependent Claim
26 words
The process of claim 1, wherein said step of coating comprises the step of passing the drawn fiber through a pool of the liquid metallic alloy.
Claim 6
Dependent Claim
22 words
The process of claim 1, wherein said step of solidifying includes the step of passing the liquid-coated fiber through a cooled die.
Claim 7
Dependent Claim
22 words
The process of claim 1, wherein said step of solidifying includes the step of passing the liquid coated fiber between counter-rotating rolls.
Claim 8
Dependent Claim
10 words
The process of claim 6, wherein the rolls are grooved.
Claim 9
Dependent Claim
16 words
The process of claim 1, wherein the amorphous metallic alloy is magnetostictive in the amorphous state.
Claim 10
Dependent Claim
20 words
The process of claim 1, wherein the linear drawing rate is from about 0.5 to about 25 meters per second.
Claim 11
Dependent Claim
20 words
The process of claim 1, wherein the thickness of the metallic coating is from about 10 to about 100 micrometers.
Claim 12
Dependent Claim
16 words
A glass fiber coated with an amorphous metallic coating prepared by the process of claim 1.
Claim 13
Dependent Claim
139 words
A process for preparing a length of glass fiber coated with an amorphous metallic coating from a length of glass preform rod, comprising the steps of: heating a length of the glass preform rod; applying a load to the heated length to elongate the preform to form a drawn glass fiber; and passing the drawn glass fiber vertically through an opening between a pair of grooved counter-rotating rolls, the rolls having a pool of liquid glass-forming metal held in the nip of the rolls above the groove, and the cross-sectional area of the opening being greater than the cross-sectional area of the drawn glass fiber, whereby liquid metal from the pool is coated onto the drawn glass fiber as the drawn glass fiber passes therethrough and the metal is rapidly cooled as the coated fiber passes through the opening.
Claim 14
Dependent Claim
139 words
A process for preparing a length of glass fiber coated with an amorphous metallic coating from a length of glass preform rod, comprising the steps of: heating a length of the glass preform rod; applying a load to the heated length to elongate the preform to form a drawn glass fiber; and passing the drawn glass fiber vertically through an opening between a pair of grooved counter-rotating rolls, the rolls having a pool of liquid glass-forming metal held in the nip of the rolls above the groove, and the cross-sectional area of the opening being greater than the cross-sectional area of the drawn glass fiber, whereby liquid metal from the pool is coated onto the drawn glass fiber as the drawn glass fiber passes therethrough and the metal is rapidly cooled as the coated fiber passes through the opening.
Claim 15
Dependent Claim
27 words
The process of claim 12, wherein said rolls are rotated at a surface speed substantially equal to the linear rate of travel of the drawn glass fiber.
Claim 16
Dependent Claim
16 words
A glass fiber coated with an amorphous metallic coating prepared by the process of claim 12.
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) | 1989-08-18 | 1990-02-17 | 1990-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-08-18 | 1994-02-17 | 1994-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-08-18 | 1998-02-17 | 1998-08-19 | $7700.00 | Window Closed / Lapsed |