Why did the Danish engineer Karl Kroyler, who first proposed pumping not air into its hull, but expanded polystyrene (styrofoam) when lifting a sunken ship, fail to obtain a patent for his invention? Detailed answer

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Why did the Danish engineer Karl Kroyler, who first proposed pumping not air into its hull, but expanded polystyrene (styrofoam) when lifting a sunken ship, fail to obtain a patent for his invention? Detailed answer

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Why did the Danish engineer Karl Kroyler, who first proposed pumping not air into its hull, but expanded polystyrene (styrofoam) when lifting a sunken ship, fail to obtain a patent for his invention?

In 1964, a ship sank in the freshwater harbor of Kuwait City. They decided to raise it by pumping air into the hull. To do this, it was necessary to first seal the case by welding all, even the smallest, holes.

Such work, according to experts, could take six months. The situation was complicated by the fact that drinking water was supplied to the city from the harbor area, and the sunken cargo could cause its pollution.

The Danish engineer Karl Kroyler found a way out. He suggested pumping into the ship's hull not air, but polystyrene foam, familiar to everyone, foam, 98 percent consisting of air pores. Foam clogged the holes, only large holes had to be sealed, and as a result, rescue work took only a month and a half.

Encouraged by the success, Kroyler decided to get a patent for his invention. It turned out, however, that a similar method of raising sunken ships had already been "published", and Kroiler was refused.

The priority in the invention was found in the cartoon character of Walt Disney - Donald the Duck. During one of his adventures, he raises his yacht, filling it with ping-pong balls. It is a pity that Disney did not think of patenting his witty invention.

Author: Kondrashov A.P.

Random interesting fact from the Great Encyclopedia:

Who was the first to print a book?

The Gutenberg Bible was not the first printed book in the world. 78 years before her, in 1377, a Buddhist document called "Chikchi" was published in Korea, which tells about the sermons of the Buddha and the life of Indian and Chinese monks and preachers.

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