US3607164A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for producing glass filaments
Assignee: Owens Corning
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Filing: 1969-08-18
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Granted: 1971-09-21
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Expires: 1989-08-18
Abstract
Abstract An apparatus for producing glass filaments has an array of orificed tips through which streams of molten glass are flowed and then attenuated into filaments. A uniform filament-forming environment is attained by employment of solid heat-radiating tips to thermally shield certain active array boundary tips from the influences of a cooler ambient atmosphere.
Inventors
- 👤 Craig L Thom
- 👤 Charles L Mckinnis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:58
CPC Classifications
C; C03; C03B; C03B37/00; C03B37/01; C03B37/02; C03B37/0203; C03B37/0209; C03B37/08; C03B37/083
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
27 words
An apparatus for producing glass filaments as recited in claim 1 wherein said nonorificed tips are disposed in a discontinuous boundary relationship with the orificed tip array.
Claim 2
Dependent Claim
35 words
An apparatus for producing glass filaments as recited in claim 1 wherein said orificed tips are disposed in adjacent rows with said nonorificed tips being disposed as terminal tips at the ends of each row.
Claim 3
Dependent Claim
39 words
An apparatus for producing glass filaments as recited in claim 1 wherein said orificed tips are disposed in a substantially duplicating hexagonal configuration to insure that a maximum number of equispaced tips are always provided within a given space.
Claim 4
Dependent Claim
29 words
An apparatus for producing glass filaments as recited in claim 4 wherein said nonorificed tips are disposed in a discontinuous manner peripherally about the group of said orificed tips.
Claim 5
Dependent Claim
31 words
An apparatus for producing glass filaments as recited in claim 5 wherein said nonorificed tips are disposed as a continuation of the hexagonal pattern in which said orificed tips are disposed.
Claim 6
Independent Claim
104 words
An apparatus for producing glass fibers comprising: a feeder for feeding glass material in molten form; rows of heat-radiating orificed tips in a wall of said feeder through which streams of the molten glass material are emitted; a plurality of elongated shield members extending transversely between rows of said orificed tips; and a plurality of heat-radiating nonorificed tips extending from the wall of said feeder, said nonorificed tips being substantially equivalent in physical size to said orificed tips said nonorificed tips being disposed at opposite ends of each row of said orificed tips to promote a uniform filament-forming environment for all said orificed tips.
Claim 7
Dependent Claim
22 words
An apparatus for producing glass fibers as recited in claim 7 wherein said apparatus has means for forcefully cooling said shield members.
References Cited (Backward Citations)
US3068669A
Cited
US3468643A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-20 | 1975-03-22 | 1975-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-20 | 1979-03-22 | 1979-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-20 | 1983-03-22 | 1983-09-21 | $7700.00 | Window Closed / Lapsed |