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Patent 7913944 Click For Printable Version of This Patent
Patent Information:  USPTO Site Listing

Patent Number: 7913944
Case ID: 0
Patent Title: Cable brake for sea deployments of light cable
Status: ACTIVE
Status Date: 11/30/2011 11:07:54 AM
Issue Date: 3/29/2011
Filed Date: 6/3/2008
Serial #: 2/132,091
Assignee Name: The United States of America as represented by the Secretary of the Navy (Washington, DC)
Inventor(s): Lombardi, Tammy , GilChrist, Jeff , Bratten, Aaron , Collins, Lynn , Whiteside, Steve , Gonzales, Frank , Smith, Kristin
Lab Information:  View Lab Profile

Lab Name: SPAWAR Systems Center, Pacific
Location: 53560 Hull Street
San Diego, CA 92152-5001
Contact: Contact Lab About This Patent
   
Description:
BACKGROUND

There are several challenges associated with the deployment of fiber-optic cable in water. To prevent wasteful, unrestrained payout of the cable, especially in deep water, tension is typically applied to the cable by way of capstans or hand tension. These previous techniques have draw-backs, however, such as cable damage in the event of a cable snag, limited sequential in-line sensor deployment capability, and lack of precision/control. A need exists for a system with improved functional capability and greater control of optical-cable deployment.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1a shows a schematic of a ship equipped with the presently disclosed system.

FIG. 1b shows a side view of a cable brake system.

FIG. 2 shows an actuator/brake-hub sub-assembly.

FIG. 3 shows a perspective view of a sensor assembly.

FIG. 4 shows a sensor for counting revolutions of a drum; and

FIG. 5 shows perspective view  . . . . More
Abstract:
A cable brake system for deployments of cable comprising: a frame configured to be mounted on a ship; a repeater supporting track mounted longitudinally to the frame, the supporting track being configured for slidingly supporting a plurality of repeaters; a spool positioned exterior to the frame, the spool having the cable wrapped therearound and being capable of supplying the cable to an interior of the frame; at least one planar surface on an interior of the frame, the planar surface being positioned approximately parallel to the repeater supporting track; and a plurality of brake sub-assemblies being supported by the planar surface in a manner so as to establish a serpentine path for the cable and to impart variable frictional resistance to the cable.
Claims:
We claim:

1. A cable brake system for deployments of cable comprising: a frame configured to be mounted on a ship; a repeater supporting track mounted longitudinally to said frame, said supporting track being configured for slidingly supporting a plurality of repeaters; a spool positioned exterior to said frame, said spool having the cable wrapped therearound and being capable of supplying said cable to an interior of said frame; at least one planar surface on an interior of said frame, said planar surface being positioned approximately parallel to said repeater supporting track; and a plurality of brake sub-assemblies being supported by said planar surface in a manner so as to establish a serpentine path for the cable and to impart variable frictional resistance to the cable.

2. The cable brake system for deployments of light cable of claim 1, further comprising a counter, wherein said counter comprises a light reflective surface on said spool and a light emitti . . . . More