SU148654A1 - Electric spear to defeat underwater predators - Google Patents

Description

Known protection tools used in underwater operations do not provide effective results or are inconvenient to handle due to the charging time. To defeat fish as well as whales, it is known to use electric harpoons using an electric battery and a handpiece, which closes an electrical value when struck.

The proposed electric spear for defeating underwater predators is designed using m of the well-known elements of the electric harpoon, but at the same time it has distinctive features that allow to increase the effectiveness of the damage and ensure constant readiness for action. For this purpose, a voltage converter, a condenser, and a pulse transformer are introduced into the electrical circuit.

In order to compensate for the pressure of the external environment, the closing contacts can be placed in a cavity separated from the external environment by a flexible LT aperture and filled with liquid oil.

For ease of use a spear, an electrical circuit can be placed in its handle.

FIG. 1 shows the proposed electric spear, a longitudinal section; in fig. 2 - his electrical circuit.

An electric lance for defeating underwater predators consists of a body / handle made of a duralumin tube, ending at the back with a vinyl handle 2 itself, and having a closing head in the front. The head is a housing 5 in which a fixed contact is mounted on one side and a movable contact 5 with a tip 6 embedded on a flexible diaphragm 7 on the other side. The latter separates the cavity 7d (in which the closure contacts are placed) filled

No. 148654

oil, in order to compensate for the pressure of the external environment. To localize the discharge through the tip 6, a corrugated rubber tube 5 was used on the body of the predator, which acts as an insulator of the tip from the sea water during the impact.

The electrical circuit of the electric lance (Fig. 2a) consists of the electric battery B, the voltage converter I „, the capacitor C, and the pulse transformer ITr. Interlocking contacts in the circuit are denoted by the index K. For ease of use with a spear, all elements of the electrical circuit are located in cavity 9 of the housing of the handle of the spear.

Acts spear as follows.

When the tip 6 strikes the body of the underwater predator, contacts 4 and 5 are closed and a large-capacity capacitor C strikes the body of the predator and hits it.

Modifications to an electrical circuit with high voltage electric batteries are shown in FIG. 2 b and 2 v (where R is the charge resistance).

In conclusion, the State Oceanographic Institute notes the feasibility of using the proposed electric lance, due to its simplicity and effectiveness when conducting underwater operations in hazardous waters.

Subject invention

Claims (3)

1. Electric spear for defeating underwater predators using an electric battery and a handpiece, closing the contacts of an electrical circuit upon impact, characterized in that, in order to increase the effectiveness of the damage and constant readiness for action, a voltage converter, a capacitor and a pulse are introduced into the electrical circuit transformer. 2. The electric lance according to claim 1, characterized in that, in order to compensate for the pressure of the external environment, the closing contacts are placed in a cavity separated from the external medium by a flexible diaphragm and filled with liquid oil. 3. The form of the electric lance on PP. 1 and 2, characterized in that, for the sake of ease of use of the spear, the entire electrical circuit is housed in the handle of the spear. J v 4 l / zLc PiK2