Patent US1578210A successfully refreshed from Google Patents.
Patent US4976509A successfully refreshed from Google Patents.
US4976509A
Expired / Lapsed
US
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Flexible electrical control cable
Assignee: Siemens AG
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Filing: 1989-12-18
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Granted: 1990-12-11
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Expires: 2009-12-18
Abstract
Abstract In order to improve a multi-conductor control cable comprising conductor bundles utilized in container loading devices (spreader cables) so that it can transmit video signals, a stranded unit is provided in place of a conductor bundle. This stranded unit consists of only four stranded elements: an optical waveguide cable; a stranded element with a diameter equal to the diameter of the optical waveguide cable; and two additional stranded elements of smaller diameter.
Inventors
- 👤 Andreas Bachmann
- 👤 Arnd-Gunther Carl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:24
CPC Classifications
H; H01; H01B; H01B11/00; H01B11/22; G; G02; G02B; G02B6/00; G02B6/44; G02B6/4401; G02B6/4415; G02B6/4416
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
89 words
A flexible electrical control cable comprising: (a) central supporting member; (b) a plurality of conductor bundles surrounding said central supporting member with interstices between said conductor bundles, at least one of said conductor bundles comprising four elements stranded together, said elements including an optical waveguide cable, a stranded element with a diameter equal to the diameter of said optical waveguide cable and two stranded elements with diameters smaller than the diameter of said optical waveguide cable; and (c) braided lead cords arranged in the interstices between the conductor bundles.
Claim 2
Dependent Claim
89 words
A flexible electrical control cable comprising: (a) central supporting member; (b) a plurality of conductor bundles surrounding said central supporting member with interstices between said conductor bundles, at least one of said conductor bundles comprising four elements stranded together, said elements including an optical waveguide cable, a stranded element with a diameter equal to the diameter of said optical waveguide cable and two stranded elements with diameters smaller than the diameter of said optical waveguide cable; and (c) braided lead cords arranged in the interstices between the conductor bundles.
Claim 3
Dependent Claim
25 words
The control cable of claim 1, wherein said optical waveguide cable comprises a hollow core conductor and a plurality of optical waveguide cables contained therein.
Claim 4
Dependent Claim
38 words
The control cable of claim 2, wherein the non-optical stranded elements comprise insulated electrical control wires, the control wire with a diameter equal to the diameter of said optical waveguide cable being provided with a thickened conductor insulation.
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) | 1993-12-10 | 1994-06-11 | 1994-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-12-10 | 1998-06-11 | 1998-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-12-10 | 2002-06-11 | 2002-12-11 | $7700.00 | Window Closed / Lapsed |