US5402966A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Missile optical waveguide
Assignee: LFK-Lenkflugkörpersysteme GmbH
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Filing: 1992-11-05
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Granted: 1995-04-04
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Expires: 2012-11-05
Abstract
Abstract A missile optical waveguide for the transmission of signals is wound as a package body, can be withdrawn from the package body during missile flight, and is provided with an outer coating having a rectangular outer contour and a wall thickness which is cross-sectionally non-uniform and is thickest in the corner areas of the outer coating. The coating can be provided with embedded fiber reinforcements, whereby the light-signal-transmitting glass fiber of the optical waveguide is effectively protected from unacceptably high tensile and pressure loads which interfere with the quality of the transmission. The winding volume is thereby reduced and problem-free axial withdrawal of the optical waveguide from the package body is ensured.
Inventors
- 👤 Wolfgang von Hoessle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 00:18
CPC Classifications
B; B65; B65H; B65H49/00; B65H49/02; F; F42; F42B; F42B15/00; F42B15/01; F42B15/04; G; G02; G02B; G02B6/00; G02B6/44; G02B6/4439; G02B6/4457; B65H2701/00; B65H2701/30; B65H2701/32
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
100 words
An optical waveguide for transmission of signals to and from a missile, said waveguide being adapted to be wound as a package body and withdrawn from the package body during flight of the missile, said waveguide comprising: a signal transmitting central optical fiber; and an outer coating immediately surrounding said central optical fiber; said outer coating having a rectangular outer contour and a wall thickness which is cross sectionally non-uniform so as to have thickened corner areas of said outer coating; and said outer coating also having reinforcing fibers embedded therein, which fibers are arranged in said thickened corner areas.
Claim 2
Dependent Claim
100 words
An optical waveguide for transmission of signals to and from a missile, said waveguide being adapted to be wound as a package body and withdrawn from the package body during flight of the missile, said waveguide comprising: a signal transmitting central optical fiber; and an outer coating immediately surrounding said central optical fiber; said outer coating having a rectangular outer contour and a wall thickness which is cross sectionally non-uniform so as to have thickened corner areas of said outer coating; and said outer coating also having reinforcing fibers embedded therein, which fibers are arranged in said thickened corner areas.
Claim 3
Dependent Claim
22 words
A missile optical waveguide, according to claim 1, wherein the outer coating has a square outer contour and a circular inner contour.
Claim 4
Dependent Claim
27 words
A missile optical waveguide, according to claim 1, wherein the fiber reinforcements have a fiber orientation which is unidirectional in the longitudinal direction of the optical waveguide.
Claim 5
Dependent Claim
23 words
A missile optical waveguide, according to claim 3, wherein the fiber reinforcements consist of at least one of kevlar fibers and carbon fibers.
Claim 6
Dependent Claim
40 words
A missile optical waveguide, according to claim 4, wherein the package body is arranged in a rotationally fixed position relative to said missile, and the optical waveguide can be withdrawn during flight in the axial direction of the package body.
Claim 7
Dependent Claim
23 words
A missile optical waveguide, according to claim 5, wherein optical waveguide windings of the package body are glued together on mutual contact surfaces.
Claim 8
Dependent Claim
40 words
A missile optical waveguide, according to claim 1, wherein the package body is arranged in a rotationally fixed position relative to said missile, and the optical waveguide can be withdrawn during flight in the axial direction of the package body.
Claim 9
Dependent Claim
23 words
A missile optical waveguide, according to claim 1, wherein optical waveguide windings of the package body are glued together on mutual contact surfaces.
Claim 10
Dependent Claim
23 words
A missile optical waveguide, according to claim 1, wherein the fiber reinforcements consist of at least one of kevlar fibers and carbon fibers.
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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) | 1998-04-03 | 1998-10-03 | 1999-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-04-03 | 2002-10-03 | 2003-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-04-03 | 2006-10-03 | 2007-04-04 | $7700.00 | Window Closed / Lapsed |