US4410346A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for manufacturing distributor and mixer elements for optical communication technology
Assignee: Siemens AG
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Filing: 1981-08-07
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Granted: 1983-10-18
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Expires: 2001-08-07
Abstract
Abstract A method for manufacturing distributor and mixer elements for optical communications technology, which elements have at least two glass fiber light waveguides fused to one another along a given segment, characterized by the steps of forming a preform by arranging at least two fiber optical rods to extend parallel to each other, fusing the arranged rods to one another in at least one sharply limited longitudinal area, then subsequently heating the preform and drawing the elements therefrom.
Inventors
- 👤 Hubert Aulich
- 👤 Karl-Heinz Eisenrith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:18
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/24; G02B6/26; G02B6/28; G02B6/2804; G02B6/2821; G02B6/2835; C; C03; C03B; C03B37/00; C03B37/01; C03B37/012; C03B37/01205; C03B37/01211; C03B37/02; C03B37/025; C03B37/028
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
117 words
A method for manufacturing distributor and mixer elements for optical communications technology, which elements have at least two glass fiber light waveguides fused to one another along a given segment with free fiber ends extending from each end of the segment, said method consisting of the steps of forming a preform for drawing a fiber by arranging at least two glass rods to extend parallel to each other, fusing the arranged rods to one another in at least one sharply limited longitudinal area spaced from the ends of the rods, then subsequently heating the preform and drawing the elements having a fused segment with free fibers extending from each end of the segment from said heated preform.
Claim 2
Independent Claim
117 words
A method for manufacturing distributor and mixer elements for optical communications technology, which elements have at least two glass fiber light waveguides fused to one another along a given segment with free fiber ends extending from each end of the segment, said method consisting of the steps of forming a preform for drawing a fiber by arranging at least two glass rods to extend parallel to each other, fusing the arranged rods to one another in at least one sharply limited longitudinal area spaced from the ends of the rods, then subsequently heating the preform and drawing the elements having a fused segment with free fibers extending from each end of the segment from said heated preform.
Claim 3
Dependent Claim
23 words
A method according to claim 1, wherein the step of fusing the arranged glass rods comprises heating in a sharply limited heating zone.
Claim 4
Dependent Claim
29 words
A method according to claim 2, wherein the step of heating in a sharply limited heating zone utilizes a heating wire to cause the fusing of the glass rods.
Claim 5
Dependent Claim
23 words
A method according to claim 2, wherein the step of heating in a sharply limited heating zone is accomplished by utilizing a laser.
Claim 6
Dependent Claim
27 words
A method according to claim 2, wherein the step of heating in a sharply limited heating zone utilizes an oxyhydrogen burner with a sharply limited heating zone.
Claim 7
Dependent Claim
26 words
A method according to claim 2, wherein the step of heating in a sharply limited heating zone utilizes a heating wire in combination with a laser.
Claim 8
Dependent Claim
36 words
A method according to claim 6, which includes utilizing an oxy-hydrogen burner with a sharply limited heating zone in combination with the laser and heating wire for heating the rods in a sharply limited heating zone.
Claim 9
Dependent Claim
28 words
A method according to claim 2, wherein the heating in a sharply limited heating zone utilizes a laser and an oxy-hydrogen burner having a sharply limited heating zone.
Claim 10
Dependent Claim
32 words
A method according to claim 2, wherein the step of heating a sharply limited heating zone utilizes a heating wire in combination with an oxy-hydrogen burner with a sharply limited heating zone.
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) | 1986-10-17 | 1987-04-18 | 1987-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-10-17 | 1991-04-18 | 1991-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-10-17 | 1995-04-18 | 1995-10-18 | $7700.00 | Window Closed / Lapsed |