US3775061A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for making fibers
Assignee: Individual
•
Filing: 1965-08-19
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Granted: 1973-11-27
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Expires: 1985-08-19
Abstract
Abstract Apparatus for making crystal fibers by condensing a material from a vapor phase comprising a chamber, a vaporiser for supplying a vapor which is condensed and crystalized into fibers, heating elements around the chamber to maintain the vapor, cooling apparatus located at an exit orifice of the chamber, said cooling apparatus directing a stream of gas into the chamber to provide a cooler region where the vapor condenses to form solid fibrous materials, apparatus for applying an electrostatic charge to the growing fibers to fan out the ends of the fibers so that the ends are separated and individually exposed to the vapor, a reel for withdrawing the fibers through the exit opening, servo motor apparatus for operating the reel, an electric circuit for measuring the electrostatic charge on the fibers and actuating the reel in response thereto, and apparatus for coordinating the speed of rotation of the reel with the speed of producing fibers.
Inventors
- 👤 J Glass
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:43
CPC Classifications
C; C30; C30B; C30B25/00; C30B25/005; C30B23/00; C30B23/007; Y; Y10; Y10T; Y10T117/00; Y10T117/10; Y10T117/1004; Y10T117/1008; Y10T117/102
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
68 words
In apparatus for making fibers, a chamber, means for forming a plurality of growing elongated fibers by condensing fibrous crystals from a vapor stage of fiber-producing materials in the chamber, means for applying an electrostatic charge to the fibers to fan out their ends, and means for gathering the fibers together at a constricting position spaced away from the fiber ends so the fiber ends are held separated.
Claim 2
Dependent Claim
44 words
In apparatus for making fibers, a chamber having an electrostatically charged group of fibers in the chamber, a reel for withdrawing the fibers from the chamber, and servo motor means actuated in response to the electrostatic charge on the fibers for operating the reel.
Claim 3
Dependent Claim
49 words
In apparatus for making fibers, a chamber having a plurality of electrostatically charged groups of fibers in the chamber, and a plurality of reels for withdrawing the fibers from the chamber, said reels being operated by servo motor means actuated in response to the electrostatic charge on the fibers.
Claim 4
Dependent Claim
48 words
In apparatus for making fibers, apparatus for controlling the length of the fibers comprising means for applying an electrostatic charge to growing fibers in a growing zone, and means for withdrawing the fibers from the growing zone when the value of the electrostatic charge reaches a predetermined level.
Claim 5
Dependent Claim
88 words
In apparatus for making fibers, a chaMber, means for creating a vapor of fiber-producing material in the chamber, means for condensing the vapor into fibrous crystals to form a plurality of growing elongated fibers, said chamber having an exit opening formed therein, a reel for withdrawing the fibers from the chamber through the opening, servo motor means for operating the reel, and means for feeding back the rate of rotation of the reel to the vapor creating means to control the rate of creating vapor in the chamber.
Claim 6
Dependent Claim
65 words
Apparatus for making fibers comprising a chamber, means for producing a vapor of fiber-producing material in the chamber, means for condensing the vapor to form a plurality of growing elongated fibers, means for applying an electrostatic charge to the growing fibers, means for measuring the value of the electrostatic charge, and means for withdrawing the fibers from the chamber in response to predetermined measured values.
Claim 7
Dependent Claim
171 words
Apparatus for making fibers comprising a chamber, heated means positioned in the bottom portion of the chamber for producing a vapor of fiber-producing material in the chamber, means for condensing the vapor to form a plurality of growing elongated fibers, means for applying an electrostatic charge to the growing fibers to fan out the ends of the fibers so that the ends are separated and individually exposed to vapor, a guard ring for gathering the fibers together at a constricting position spaced away from the fiber ends, said chamber having an exit opening formed therein above the guard ring, a reel for withdrawing the fibers from the chamber through the opening in the form of a strand of fibers, servo motor means for operating the reel, electric circuit means for measuring the electrostatic charge on the fibers and actuating the reel in response thereto, and means for feeding back the rate of rotation of the reel to the vapor producing means to control the rate of producing vapor in the chamber.
Claim 8
Dependent Claim
25 words
The apparatus according to claim 8 wherein the electric circuit means includes an amplifier and an electronic bridge connected in circuit with the servo motor.
Claim 9
Dependent Claim
134 words
Apparatus for making fibers comprising vaporizing means to supply vapor to be condensed and crystallized into fibers in a chamber, heating means around said chamber to maintain said vapor, cooling means located at an exit orifice of said chamber, said cooling means being in the form of a stream of gas being directed into said chamber to provide a less heated region where vapor condenses to form solid fibrous materials, means for withdrawing the fibrous materials from the chamber, and means for feeding back the rate of material withdrawal to the vaporizing means to control the rate of producing vapor in the chamber, said feed-back means including an electrical circuit having a servo motor that responds to withdrawal rate and actuates a valve to control the amount of vapor being supplied to the chamber.
Claim 10
Dependent Claim
67 words
In apparatus for making fibers by nucleation from a vapor phase, a chamber, an orifice in the chamber through which nucleating fibers are drawn and constrained, means directing a cooling gas through the orifice and into the chamber, means distributing vaporized particles within the chamber, and means electrostatically charging the particles opposite to the charge on the nucleating fibers, whereby vaporized particles condense on the nucleating fibers.
Claim 11
Dependent Claim
48 words
In apparatus for making fibers by nucleation from a vapor phase, a chamber, constraining means in the chamber through which fibers are constrained, charging means electrostatically charging the ends of the fibers to disperse and hold apart said ends, and distributing means distributing vaporized particles within the chamber.
Claim 12
Dependent Claim
23 words
The apparatus of claim 12 wherein said constraining means is an orifice in the chamber through which the fibers are drawn and constrained.
Claim 13
Dependent Claim
18 words
The apparatus of claim 13 including means directing a cooling gas through the orifice and into the chamber.
Claim 14
Dependent Claim
19 words
The apparatus of claim 14 wherein said cooling gas contains an actIve element promoting a reduction of metal chloride.
Claim 15
Dependent Claim
18 words
The apparatus of claim 12 including means electrostatically charging the particles opposite to the charge on the fibers.
Claim 16
Dependent Claim
15 words
The apparatus of claim 12 wherein said distributing means distributes a vaporized phase of hydrocarbon.
Claim 17
Dependent Claim
14 words
The apparatus of claim 17 wherein said hydrocarbon is diluted by an inactive ingredient.
Claim 18
Dependent Claim
32 words
The apparatus of claim 17 wherein means are provided for cracking the hydrocarbon into its products, and means are provided for recirculating the products of cracking to aid in heating the chamber.
Claim 19
Dependent Claim
20 words
The apparatus of claim 12 including means in the chamber for promoting dendritic growth from the ends of the fibers.
Claim 20
Dependent Claim
19 words
The apparatus of claim 20 wherein said means for promoting dendritic growth comprises means for producing an electrical discharge.
Claim 21
Dependent Claim
20 words
The apparatus of claim 20 wherein said means for promoting dendritic growth comprises means for applying vibration to the chamber.
Claim 22
Dependent Claim
23 words
The apparatus defined in claim 20 wherein said means for promoting dendritic growth comprises means for introducing growth promoting materials into the chamber.
Claim 23
Dependent Claim
31 words
The apparatus defined in claim 12 including means for measuring the rate of growth of the fibers, and means responsive to said measuring means for controlling the rate of fiber growth.
Claim 24
Dependent Claim
20 words
The apparatus defined in claim 24 wherein said measuring means comprises means for measuring the electrical capacity of the fibers.
Claim 25
Dependent Claim
76 words
In apparatus for making fibers, apparatus for controlling the length of the fibers comprising means for applying an electrostatic charge to growing fibers in a growing zone, means for withdrawing the fibers from the growing zone when the value of the electrostatic charge reaches a predetermined level, and means for controlling the rate of growth of the fibers to correspond with the rate of withdrawal by servoing the introduction of cooling gas into the fiber-making apparatus.
Claim 26
Dependent Claim
76 words
In apparatus for making fibers, apparatus for controlling the length of the fibers comprising means for applying an electrostatic charge to growing fibers in a growing zone, means for withdrawing the fibers from the growing zone when the value of the electrostatic charge reaches a predetermined level, and means for controlling the rate of growth of the fibers to correspond with the rate of withdrawal by servoing the introduction of active ingredients into the fiber-making apparatus.
Claim 27
Dependent Claim
90 words
In apparatus for making fibers by nucleation from a vapor phase, a chamber, constraining means in the chamber through which fibers are constrained, charging means electrostatically charging the ends of the fibers to disperse and hold apart said ends, distributing means distributing vaporized particles within the chamber, means for measuring the rate of growth of the fibers, and means responsive to said measuring means for controlling the rate of fiber growth, wherein said control means comprises servo means controlling the rate of distribution in the chamber of the vaporized particles.
Claim 28
Dependent Claim
91 words
In apparatus for making fibers by nucleation from a vapor phase, a chamber, constraining means in the chamber through which fibers are constrained, charging means electrostatically charging the ends of the fibers to disperse and hold apart said ends, and distributing means distributing vaporized particles within the chamber, means for measuring the rate of growth of the fibers, and means responsive to said measuring means for controlling the rate of fiber growth, wherein said control means comprises servo means controlling the rate of distribution in the chamber of the vaporized particles.
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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) | 1976-11-26 | 1977-05-28 | 1977-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-26 | 1981-05-28 | 1981-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-26 | 1985-05-28 | 1985-11-27 | $7700.00 | Window Closed / Lapsed |