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Patent 6837175 Click For Printable Version of This Patent
Patent Information:  USPTO Site Listing

Patent Number: 6837175
Case ID: 82858
Patent Title: Asymmetric tow system for multiple linear seismic arrays
Status: ACTIVE
Status Date: 1/4/2005 9:43:03 AM
Issue Date: 1/4/2005
Filed Date: 7/24/2003
Serial #: 627103
Assignee Name: The United States of America as represented by the Secretary of the Navy (Washington, DC)
Inventor(s): Gieseke, Thomas J.
Lab Information:  View Lab Profile

Lab Name: NAVSEA Newport
Location: 1176 Howell Street
Newport, RI 02841
Contact: Contact Lab About This Patent
   
Description:
BACKGROUND OF THE INVENTION

(1) Field of the Invention

This invention generally relates to a device for towing long multiple line arrays.

More particularly, the invention relates to a device for towing long multiple linear arrays with a streamlined composite tow cable, with the composite tow cable having direct mechanical and electrical connections to each towed array.

The array towing arrangement and bridle configuration present minimal drag to the tow platform and consequently the proposed arrangement can be towed at greater speeds than other more traditional towing arrangements. The reduced drag enables higher tow speed and in turn more rapid coverage of large areas of the ocean floor.

(2) Description of the Prior Art

The current art for undersea oil exploration is guided by seismic analysis of the ocean floor. Large surface ships 90 tow multiple linear arrays 92 equipped with low frequ . . . . More
Abstract:
An asymmetric towing system for towing multiple linear arrays includes a tow platform and a single composite tow cable extending from the tow platform and having the multiple linear arrays connected both mechanically and electrically thereto. The composite tow cable is shaped by a hard streamlined casing and houses a load bearing cable for mechanical connection to each array and plural individual array connections for establishing electrical communication between each array and the tow platform. A single depressor is connected to a distal end of the composite cable for spreading the composite cable in a substantially lateral direction from and to one side of the tow platform.
Claims:
What is claimed is:

1. An asymmetric multiline towed array for towing by a tow platform comprising:

a support cable having a first end for connection to the tow platform and an opposing distal end, said support cable including both mechanical and signal components;

at least one array connected to said mechanical and signal components of said support cable; and

a depressor connected to the distal end of said support cable for spreading said support cable in a substantially lateral direction from one side of the tow platform;

wherein the signal component of said support cable includes at least one array connector for communications connection with said array.

2. The system according to claim 1 wherein said support cable is streamlined in shape to include a rounded leading nose portion and a tapered tail portion trailing the nose portion.

3. The system according to claim 1 wherein the mech . . . . More