Underwater vibration detector
First Claim
2. A SYSTEM FOR GIVING AUDIBLE INDICATION OF CONTACT OF A SWEEP CABLE WITH A SUBMERGED OBJECT IN MINESWEEPING OPERATIONS, COMPRISING A METAL SWEEP CABLE TOWED BY A SHIP AND PARTIALLY SUBMERGED BY A DEPRESSOR, A FIRST MECHANICAL VIBRATION FILTER CLAMPED ON SAID SWEEP CABLE AFT OF THE JUNCTION OF SAID SWEEP CABLE WITH A LINE FROM SAID DEPRESSOR, A SECOND CABLE SECURED AT ONE END TO THE SHIP THROUGH A SECOND VIBRATION FILTER AND AT THE OTHER END TO A POINT ON THE SWEEP CABLE IN ACOUSTICAL CONTACT WITH THE LATTER AFT OF SAID FIRST MECHANICAL VIBRATION FILTER, AN ELECTROACOUSTIC PICKUP DEVICE ATTACHED TO SAID SECOND METAL CABLE, AN AMPLIFIER OPERATIVELY CONNECTED TO THE PICKUP DEVICE, AND AN INDICATING MEANS OPERATIVELY CONNECTED WITH SAID AMPLIFIER.
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Accused Products
3 Citations
2 Claims
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2. A SYSTEM FOR GIVING AUDIBLE INDICATION OF CONTACT OF A SWEEP CABLE WITH A SUBMERGED OBJECT IN MINESWEEPING OPERATIONS, COMPRISING A METAL SWEEP CABLE TOWED BY A SHIP AND PARTIALLY SUBMERGED BY A DEPRESSOR, A FIRST MECHANICAL VIBRATION FILTER CLAMPED ON SAID SWEEP CABLE AFT OF THE JUNCTION OF SAID SWEEP CABLE WITH A LINE FROM SAID DEPRESSOR, A SECOND CABLE SECURED AT ONE END TO THE SHIP THROUGH A SECOND VIBRATION FILTER AND AT THE OTHER END TO A POINT ON THE SWEEP CABLE IN ACOUSTICAL CONTACT WITH THE LATTER AFT OF SAID FIRST MECHANICAL VIBRATION FILTER, AN ELECTROACOUSTIC PICKUP DEVICE ATTACHED TO SAID SECOND METAL CABLE, AN AMPLIFIER OPERATIVELY CONNECTED TO THE PICKUP DEVICE, AND AN INDICATING MEANS OPERATIVELY CONNECTED WITH SAID AMPLIFIER.
Specification
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Current AssigneeHorace M. Trent, Thomas F. Jones Jr
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Original AssigneeHorace M. Trent, Thomas F. Jones Jr
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InventorsTrent, Horace M., Jones, Thomas F. Jr.
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Application NumberUS02/653,928Time in Patent Office7,672 DaysField of SearchUS Class Current367/135CPC Class CodesB63G 7/08 of acoustic typeG01S 1/72 using ultrasonic, sonic or ...
