Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
  • 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
  • B63C11/00—Equipment for dwelling or working underwater; Means for searching for underwater objects
  • B63C11/02—Divers' equipment
  • B63C11/26—Communication means, e.g. means for signalling the presence of divers
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
  • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
  • B63B2205/00—Tethers
  • B63B2205/02—Tether payout means
  • B63B2205/04—Tether payout means comprising means for controlling payout
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
  • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
  • B63B2205/00—Tethers
  • B63B2205/02—Tether payout means
  • B63B2205/06—Reels for tethers

Definitions

• the present invention concerns a device for the automatic adjusting, according to the pressure, of the length of the connection rope between a buoy and a skin-diver.
• the present invention takes its origin from the need to take the exact position of skin-divers with repect to the floating indicator buoy, so as to reduce the dangers deriving from incidents caused by arriving floating means.
• connection rope between said buoy and the skin-diver has always the same length, thus representing only the limit of the reciprocal distance.
• the aim set forth is reached by means of the device according to the present invention, comprising a winding and unwinding means for the connection rope between a floating buoy and an immersed skin-diver, so as to determine the automatic adjusting of its length following to the indications supplied by a pressure measuring sensor, provided on said skin-diver or on his spear gun or in any other housing.
• the device for unwinding the rope may be provided, according to the present invention, in correspondence with the buoy, and in that case the connection with the pressure sensor is realized with an acoustic emitter, of the sonar kind, or by means of an electrical connection obtained inside said rope, or said device - in a possible variant - may be carried by the skin-diver, may be applied to the spear gun or in any other place.
• Figure 1 shows a scheme of a device for the automatic adjusting, according to the hydrostatic pressure, of the length of the connection rope between a buoy and a skin-diver.
• Figure 2 shows a block scheme of the functioning of the device according to the present invention.
• Figures 3 and 4 show some possible variants of the device according to the present invention.
• the figures show a device for the automatic adjusting, according to the pressure, of the length of the connection rope between a buoy and a skin-diver, of the kind that can be inserted during the realization into floating buoys B of new kind, or also applied to the lower ring of already existing buoys B, comprising: a mechanism 1 for winding and unwnding a rope C, that can supply the length of the rope according to the values of the hydrostatic pressure taken by a sensor 2 inserted inside a watch or carried by the immersed skin- diver;
• an acoustic receiver 5 for taking, through the liquid means, the waves coming from the emitter 4, connected to the skin-diver;
• a pressure sensor 6 for transforming the measure of the depth reached by the skin-diver into hydrostatic pressure values.
• the device according to the present invention comprises, beyond the already mentioned details, an electric battery BA, a counter 9 of the recolutions of the electric motor 3 and a circuit 10 for the comparation between the depth and the revolution number so that the values of the hydrostatic pressure taken by the sensor 6 are translated, in real time, into the winding or unwinding of predetermined lengths of the rope C.
• said pressure sensor 6, through the transducer 7, sends an electric impulse which, passing through the cable 8, reaches the motor 3 connected to the buoy B, thus determining the winding or unwinding of the rope C, according to the taken pressure.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Ocean & Marine Engineering (AREA)
• Force Measurement Appropriate To Specific Purposes (AREA)
• Measuring Fluid Pressure (AREA)

Priority Applications (2)

Applications Claiming Priority (2)

Publications (1)

Family

ID=11401875

Family Applications (1)

Country Status (4)

Cited By (4)

Citations (4)

• 1993
  • 1993-07-20 IT ITRM930486A patent/IT1262379B/it active IP Right Grant
• 1994
  • 1994-03-11 DE DE69407267T patent/DE69407267D1/de not_active Expired - Lifetime
  • 1994-03-11 WO PCT/IT1994/000024 patent/WO1995003210A1/en active IP Right Grant
  • 1994-03-11 EP EP94910518A patent/EP0659139B1/de not_active Expired - Lifetime

Patent Citations (4)

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