Patent US2400175A successfully refreshed from Google Patents.
Patent US4985922A successfully refreshed from Google Patents.
US4985922A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Signal and power transmission through a wall
Assignee: Grumman Corp
•
Filing: 1988-07-27
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Granted: 1991-01-15
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Expires: 2008-07-27
Abstract
Abstract An inductive coupling permits bi-directional data and power to be transferred through the skin of an aircraft thereby avoiding pin connectors. The coupling comprises a sending unit which is detachably mounted to the skin exterior, and the pick-up unit is located on the interior skin surface in alignment with the sending unit.
Inventors
- 👤 Melvin Kolbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:12
CPC Classifications
H; H04; H04B; H04B5/00; H04B5/20; H04B5/24; H04B5/26; H04B5/266
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
An inductive coupling for transferring a signal across a thin conductive wall, the coupling comprising: a sending unit having (a) a housing made of ferromagnetic material; (b) a central core about which is wrapped a coil which receives the signal from a source; and (c) a ring magnet secured to the sending unit housing and extending outwardly therefrom for permitting detachable mounting to the wall; and further wherein the coupling includes a pick-up unit having (a) a housing made of ferromagnetic material and located entirely within the wall interior and in contact therewith, in alignment with the sending unit; (b) a central core about which is wrapped a coil which receives the couple signal for distribution to a utilization device; the wall having an opening with projections therearound, the opening filled with non-conductive material, wherein the coupling exists across the filled opening for decreasing coupling power dissipation.
Claim 2
Dependent Claim
147 words
An inductive coupling for transferring a signal across a thin conductive wall, the coupling comprising: a sending unit having (a) a housing made of ferromagnetic material; (b) a central core about which is wrapped a coil which receives the signal from a source; and (c) a ring magnet secured to the sending unit housing and extending outwardly therefrom for permitting detachable mounting to the wall; and further wherein the coupling includes a pick-up unit having (a) a housing made of ferromagnetic material and located entirely within the wall interior and in contact therewith, in alignment with the sending unit; (b) a central core about which is wrapped a coil which receives the couple signal for distribution to a utilization device; the wall having an opening with projections therearound, the opening filled with non-conductive material, wherein the coupling exists across the filled opening for decreasing coupling power dissipation.
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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) | 1994-01-14 | 1994-07-16 | 1995-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-01-14 | 1998-07-16 | 1999-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-01-14 | 2002-07-16 | 2003-01-15 | $7700.00 | Window Closed / Lapsed |