US3709670A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method, apparatus and system for fiberizing molten mineral material
Assignee: Individual
•
Filing: 1970-09-10
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Granted: 1973-01-09
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Expires: 1990-09-10
Abstract
Abstract A method for converting molten material into filamentous form of fibers consisting of discharging the molten material to at least one spinner assembly disposed in the region of a pickup chamber, circulating a conveying medium through a duct work system including a pickup chamber in the region of the spinner assembly and controlling the temperature and velocity of the conveying medium in a manner to produce fibers having a minimum shot content and good strength and resiliency characteristics, an apparatus and system for converting molten material into filamentous form of fibers including a cupola for the molten material having a discharge spout, a duct work system, means for circulating the conveying medium through the duct work system, at least one pair of spinner assemblies in the region of a pickup chamber in the duct work system, feed means for directing the molten material to each of the spinner assemblies and means for maintaining the quantity discharged to each spinner assembly substantially uniform.
Inventors
- 👤 H Eriksen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:09
CPC Classifications
C; C03; C03B; C03B37/00; C03B37/01; C03B37/04; C03B37/05; C03B37/055; Y; Y10; Y10S; Y10S264/00; Y10S264/19
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
134 words
A method for converting molten mineral material into vitreous fiber consisting of the steps of discharging the molten mineral material to at least one spinner assembly comprising a plurality of rotating spinner wheels and disposed in the region of a pickup chamber located at the juncture of a pickup and return duct of a continuous duct work system, circulating a heated gaseous conveying medium through the duct work system, controlling velocity of the gaseous conveying medium in a manner to quickly convey fibers formed in the pickup chamber on discharge from the spinner assembly and effect passage through the pickup duct thereby to produce fibers having a minimum shot content and controlling temperature of the gaseous conveying medium by recirculating at least a portion thereof thereby producing fibers having good strength and resiliency characteristics.
Claim 2
Independent Claim
134 words
A method for converting molten mineral material into vitreous fiber consisting of the steps of discharging the molten mineral material to at least one spinner assembly comprising a plurality of rotating spinner wheels and disposed in the region of a pickup chamber located at the juncture of a pickup and return duct of a continuous duct work system, circulating a heated gaseous conveying medium through the duct work system, controlling velocity of the gaseous conveying medium in a manner to quickly convey fibers formed in the pickup chamber on discharge from the spinner assembly and effect passage through the pickup duct thereby to produce fibers having a minimum shot content and controlling temperature of the gaseous conveying medium by recirculating at least a portion thereof thereby producing fibers having good strength and resiliency characteristics.
Claim 3
Dependent Claim
23 words
A method as claimed in claim 1 wherein the temperature of the conveying medium is maintained in the range between about 300*-400* F.
Claim 4
Dependent Claim
39 words
A method as claimed in claim 1 wherein the velocity of the conveying medium is in the vicinity of about 2500 feet per minute At the pickup chamber, and about 4000 feet per minute in the duct work system.
Claim 5
Independent Claim
180 words
An apparatus for converting molten mineral material into vitreous fibers comprising a continuous duct work system, means for circulating a gaseous conveying medium through the duck work system, said duct work system including in series a non-horizontal pickup duct, a separator for separating fibers from the conveying medium and a conveying medium return duct, a juncture of the pickup duct and return duct defining a pickup chamber, at lease one spinner assembly in the region of the pickup chamber, said spinner assembly including a plurality of spinner wheels operable to effect conversion of the molten mineral material and random dispersion of fibers, means for directing the molten mineral material to the wheels of the spinner assembly, means for controlling the velocity of the gaseous conveying medium in a manner to quickly convey fibers formed in the pickup chamber and effect passage through the pickup duct thereby to produce fibers having a minimun shot content and means for controlling temperature of the gaseous conveying medium by recirculating at least a portion thereof thereby producing fibers having good strength and resiliency characteristics.
Claim 6
Independent Claim
180 words
An apparatus for converting molten mineral material into vitreous fibers comprising a continuous duct work system, means for circulating a gaseous conveying medium through the duck work system, said duct work system including in series a non-horizontal pickup duct, a separator for separating fibers from the conveying medium and a conveying medium return duct, a juncture of the pickup duct and return duct defining a pickup chamber, at lease one spinner assembly in the region of the pickup chamber, said spinner assembly including a plurality of spinner wheels operable to effect conversion of the molten mineral material and random dispersion of fibers, means for directing the molten mineral material to the wheels of the spinner assembly, means for controlling the velocity of the gaseous conveying medium in a manner to quickly convey fibers formed in the pickup chamber and effect passage through the pickup duct thereby to produce fibers having a minimun shot content and means for controlling temperature of the gaseous conveying medium by recirculating at least a portion thereof thereby producing fibers having good strength and resiliency characteristics.
Claim 7
Dependent Claim
47 words
An apparatus as claimed in claim 4 including a manifold system adjacent the spinner assembly, said manifold system including means for receiving low pressure gaseous conveying medium from the return duct and high pressure gaseous conveying medium and discharge means circumscribing the periphery of said spinner assembly.
Claim 8
Dependent Claim
26 words
An apparatus as claimed in claim 5 including valve means for selectively controlling the quantity of high pressure gaseous conveying medium introduced to said manifold system.
Claim 9
Dependent Claim
40 words
An apparatus as claimed in claim 4 including temperature sensing means in said pickup duct operatively connected to a valve control means in the return duct for selectively controlling the amount of gaseous conveying medium recirculated through the return duct.
Claim 10
Dependent Claim
19 words
An apparatus as claimed in claim 4 including classifying means to receive and classify fibers discharged from said separator.
Claim 11
Independent Claim
117 words
A system for converting molten mineral material into vitreous fibers including a container means for the molten mineral material having at least one discharge spout, at least one pair of spinner assemblies adjacent said discharge spout, each spinner assembly comprising a plurality of rotatable spinner wheels operable to disperse the molten material from the cupola to form the fibers, a feed trough for each of the spinner assemblies, an inclined distributor trough to receive molten material from the discharge spout and direct the same to the feed troughs, control means responsive to load on spinner wheels to actuate said inclined distributor trough and maintain the distribution of molten mineral material discharged to each spinner assembly substantially uniform.
Claim 12
Independent Claim
117 words
A system for converting molten mineral material into vitreous fibers including a container means for the molten mineral material having at least one discharge spout, at least one pair of spinner assemblies adjacent said discharge spout, each spinner assembly comprising a plurality of rotatable spinner wheels operable to disperse the molten material from the cupola to form the fibers, a feed trough for each of the spinner assemblies, an inclined distributor trough to receive molten material from the discharge spout and direct the same to the feed troughs, control means responsive to load on spinner wheels to actuate said inclined distributor trough and maintain the distribution of molten mineral material discharged to each spinner assembly substantially uniform.
Claim 13
Dependent Claim
65 words
A system as claimed in claim 9 including motor actuating means for each of the spinner assemblies, an actuator for the distributor trough and load sensing means for the spinner assembly, said motor actuator means operable in response to load variations to effect operation of said distributor trough actuator to vary distribution of molten material to said spinner assemblies to maintain a substantially uniform distribution.
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) | 1976-01-09 | 1976-07-10 | 1977-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-09 | 1980-07-10 | 1981-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-09 | 1984-07-10 | 1985-01-09 | $7700.00 | Window Closed / Lapsed |