US3979195A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glass fiber orifice plate
Assignee: Kaiser Glass Fiber Corp
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Filing: 1975-01-08
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Granted: 1976-09-07
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Expires: 1995-01-08
Abstract
Abstract A method and apparatus for forming glass fibers employing a generally flat orifice plate having closely spaced orifices is disclosed. A bulk flow of upwardly directed cooling gas which impinges on the orifice plate to eliminate stagnant gas pockets and which surrounds and cools the molten glass cones beneath each orifice is employed to maintain fiber separation and improve fiber formation and properties. This a division of application Ser. No. 500,303, now U.S. Pat. No. 3,905,790, filed Aug. 26, 1974, which is a continuation-in-part of Ser. No. 432,997, filed Jan 14, 1974, abandoned.
Inventors
- 👤 Edward T. Strickland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:10
CPC Classifications
C; C03; C03B; C03B37/00; C03B37/01; C03B37/02; C03B37/0203; C03B37/0213; C03B37/08; C03B37/083; Y; Y02; Y02P; Y02P40/00; Y02P40/50; Y02P40/57
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
69 words
An orifice plate for forming glass fiber filaments including a generally flat orifice area having a plurality of orifices therein, each said orifice being adapted for the formation of a fiber-forming cone of molten glass, and capillary grooves in the underside of said orifice plate connecting adjacent orifices, whereby controlled flooding occurs between adjacent orifices connected by a capillary when a fiber drawn from one of said orifices breaks.
Claim 2
Dependent Claim
69 words
An orifice plate for forming glass fiber filaments including a generally flat orifice area having a plurality of orifices therein, each said orifice being adapted for the formation of a fiber-forming cone of molten glass, and capillary grooves in the underside of said orifice plate connecting adjacent orifices, whereby controlled flooding occurs between adjacent orifices connected by a capillary when a fiber drawn from one of said orifices breaks.
Claim 3
Dependent Claim
19 words
The orifice plate of clam 1 wherein each orifice is connected by grooves to at least two adjacent orifices.
Claim 4
Dependent Claim
19 words
The orifice plate of clam 1 wherein each orifice is connected by grooves to at least two adjacent orifices.
Claim 5
Dependent Claim
21 words
The orifice plate of claim 1 wherein only the orifices near the perephery of the orifice area are connected by grooves.
Claim 6
Dependent Claim
19 words
The orifice plate of claim 1 wherein the orifice density is at least about 50 orifices per square inch.
Claim 7
Dependent Claim
19 words
The orifice plate of claim 1 wherein the orifice density is at least about 100 orifices per square inch.
Claim 8
Dependent Claim
19 words
The orifice plate of claim 1 wherein the orifice density is at least about 200 orifices per square inch.
References Cited (Backward Citations)
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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) | 1979-09-07 | 1980-03-08 | 1980-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-09-07 | 1984-03-08 | 1984-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-09-07 | 1988-03-08 | 1988-09-07 | $7700.00 | Window Closed / Lapsed |