# US 5,349,916 A · System for effecting underwater coupling of optical fiber cables characterized by a novel pod-to-vehicle interlock > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 5,349,916 A - Document ID: US5349916A - Status: Granted - Kind: A - Application number: 08/120,880 - Filed: 1993-09-13 - Granted: 1994-09-27 - Earliest claimed: 1993-09-13 - Assignees: The United States of America as represented by the Secretary of the Navy - Inventors: Christopher F. Hillenbrand; Thomas D. Barron; David M. Nugent - Web page: https://patentgrep.com/patent/US5349916A ## CPC - B63C 11/52: Tools specially adapted for working underwater, not otherwise provided for - B63G 8/38: Arrangement of visual or electronic watch equipment, e.g. of periscopes, of radar {(periscopes, optical aiming or sighting devices per se G02B23/00)} - G02B 6/4427: {Pressure resistant cables, e.g. undersea cables} - B63C: LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS (floating nets, floating slipways, or the like for recovering aircraft from the water B63B35/52) - B63G: OFFENSIVE OR DEFENSIVE ARRANGEMENTS ON VESSELS; MINE-LAYING; MINE-SWEEPING; SUBMARINES; AIRCRAFT CARRIERS (means of attack or defence in general, e.g. turrets F41H) - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS ## Abstract A submarine trails one fiber optic cable and an undersea vehicle is contred by this first cable. A missile/torpedo trails a second cable that is to be coupled to the first cable. The second cable has a segment suspended vertically underwater between a buoyant pod and a sea anchor type buoy. The undersea vehicle, or Autonomous Undersea Vehicle, (AUV) hunts for the pod by a conventional homing transmitter, and a fork-shaped cable capture probe on the vehicle direct the cable's movement relative to the vehicle into a pod mating position in which a male plug portion in the underside of the pod mates with a female socket in a slot formed at the vertex of the fork. An interlock mechanism between the male socket and female socket holds the pod and AUV in engagement wherein optical coupling is achieved. ## Claims ### Claim 1 An undersea vehicle and cable coupling system comprising: a buoyant pod; a cable suspended from said pod, a V-shaped cable engaging probe provided on said vehicle such that said cable can be engaged by the open end of said V-shaped probe as a result of moving said vehicle transversely toward said cable; plug means including a male plug portion on said pod provided axially around said cable; said plug means also including a socket part at the vertex of said V-shaped probe whereby continued transverse movement of said vehicle causes said cable to slide along said V-shaped probe until engaged by said pod male plug portion; and said plug portion including a lifting pin mechanism provided in said male plug portion for engaging said socket whereby said probe is secured to said pod and said cable coupled to said vehicle, said lifting pin mechanism having locking devices, and biasing means for urging said locking devices toward positions wherein they engage detents in said socket part. ### Claim 2 (depends on 1) The system according to claim 1 wherein said buoyant pod is provided at an upper end of said cable suspended from said pod, and ballast means provided on a lower end of said cable suspended from said pod, whereby a cable segment defined by said upper and lower ends that is oriented vertically is adapted to be received by said V-shaped probe. ### Claim 3 (depends on 1) The system according to claim 1 further characterized by a control vessel, and a fiber optic cable connecting said undersea vehicle with said control vessel. ### Claim 4 (depends on 3) The system according to claim 3 wherein said undersea vehicle is controllable remotely, said undersea vehicle having means responsive to optical control signals, said control vessel having means for generating optical control signals. ### Claim 5 (depends on 4) The system according to claim 4 wherein said control vessel has means for storing and for launching said undersea vehicle. ### Claim 6 An undersea vehicle and cable coupling system comprising: a buoyant pod; a cable suspended from said pod, a V-shaped cable engaging probe provided on said vehicle such that said cable can be engaged by the open end of said V-shaped probe as a result of moving said vehicle transversely toward said cable; plug means including a male part on said pod provided axially around said cable; said plug means also including a socket part at the vertex of said V-shaped probe whereby continued transverse movement of said vehicle causes said cable to slide along said V-shaped probe until engaged by said pod male plug part; and said plug means including a lifting pin mechanism provided in said male plug part for engaging said socket, and means for locking said male plug part in engagement with said socket. ### Claim 7 (depends on 6) The system according to claim 6 wherein said buoyant pod is provided at an upper end of said cable suspended from said pod, and ballast means provided on a lower end of said cable suspended from said pod, whereby a cable segment defined by said upper and lower ends that is oriented vertically is adapted to be received by said V-shaped probe. ### Claim 8 (depends on 6) The system according to claim 6 further characterized by a control vessel, and a fiber optic cable connecting said undersea vehicle with said control vessel. ### Claim 9 (depends on 8) The system according to claim 8 wherein said undersea vehicle is controllable remotely, said undersea vehicle having means responsive to optical control signals, said control vessel having means for generating optical control signals. ### Claim 10 (depends on 9) The system according to claim 9 wherein said control vessel has means for storing and for launching said undersea vehicle.