Patent US4697522A successfully refreshed from Google Patents.
US4697522A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drawn mine-removing apparatus
Assignee: Kabelwerke Friedrich C Ehlers
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Filing: 1986-05-20
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Granted: 1987-10-06
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Expires: 2006-05-20
Abstract
Abstract A mine-removing apparatus to be drawn behind a mine-sweeping boat and comprising a pulling cable pulling a sound generator for igniting acoustic mines, and electrode-carrying floating cables or an electrically-conductive floating cable loop for igniting magnetic mines, wherein said pulling cable and said floating cables extend in the region close to the boat as a common strand permitting limited longitudinal displacement of said cables relative to each other, said pulling cable extends beyond the trailing end of said floating cables, and all cables can be wound on and off a single winch on the boat stern.
Inventors
- 👤 Karl-Heinz Groschupp
- 👤 Simon P. Vreeke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:23
CPC Classifications
B; B63; B63G; B63G7/00; B63G7/02; B63G7/08
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
113 words
In a mine-removing apparatus to be drawn behind a mine-sweeping boat and comprising a pulling cable, at least one sound generator connected to said pulling cable and adapted for igniting acoustic mines, and electrode-carrying floating cables or an electrically-conductive floating cable loop for igniting magnetic mines, the improvement wherein said pulling cable has a first portion close to the boat, at least said first portion and said floating cables extending as a common strand; said floating cables have a trailing end and said pulling cable has a length extending in operation beyond said trailing end; and said pulling cable and said floating cables are guided for limited longitudinal displacement relative to each other.
Claim 2
Dependent Claim
113 words
In a mine-removing apparatus to be drawn behind a mine-sweeping boat and comprising a pulling cable, at least one sound generator connected to said pulling cable and adapted for igniting acoustic mines, and electrode-carrying floating cables or an electrically-conductive floating cable loop for igniting magnetic mines, the improvement wherein said pulling cable has a first portion close to the boat, at least said first portion and said floating cables extending as a common strand; said floating cables have a trailing end and said pulling cable has a length extending in operation beyond said trailing end; and said pulling cable and said floating cables are guided for limited longitudinal displacement relative to each other.
Claim 3
Dependent Claim
23 words
The apparatus as defined in claim 1, wherein said floating-cables in the region close to the boat are twined around said pulling cable.
Claim 4
Dependent Claim
32 words
The apparatus as defined in claim 1, wherein said floating cables have in the region close to the boat a pulling sleeve and said pulling cable is guided in said pulling sleeve.
Claim 5
Dependent Claim
22 words
The apparatus as defined in claim 1, further comprising transverse binder means connected said floating cables and displaceably guiding said pulling cable.
Claim 6
Dependent Claim
19 words
The apparatus as defined in claim 4, wherein said transverse binder means include guiding tubes for said pulling cable.
Claim 7
Dependent Claim
23 words
The apparatus as defined in claim 5, wherein at least the first portion of said pulling cable is formed substantially of polyarylamide fibers.
Claim 8
Dependent Claim
28 words
The apparatus as defined in claim 5, wherein at least the first portion of said pulling cable is formed of synthetic fibers having a low tensile elongation value.
Claim 9
Dependent Claim
36 words
The apparatus as defined in claim 7, wherein said pulling cable has a second portion connecting said first portion with said sound generator, said second portion being formed of material having a higher elastic elongation value.
Claim 10
Dependent Claim
28 words
The apparatus as defined in claim 1, further including a single winch drum on said boat for winding on and off said pulling cable and said floating cables.
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) | 1990-10-05 | 1991-04-06 | 1991-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-10-05 | 1995-04-06 | 1995-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-10-05 | 1999-04-06 | 1999-10-06 | $7700.00 | Window Closed / Lapsed |