Buoyancy patent

Why is the buoyancy of down jacket so big? So what exactly is a decline?

Down is fluffy, which grows on the surface of ducklings and goslings. This fluff is soft and slender, not petal-shaped. High-grade fine down is a unique natural structure, which is more precise than any artificial structure and is established through the essence of hundreds of millions of years. Feathers are soft and abundant, and thousands of down structures are connected with each other, so there is enough space to store air, so they are fluffy, energy-saving and warm. And the down jacket is buoyant.

So who invented the down jacket?

Speaking of the invention of down jacket, we should think that in 1940, Bauer obtained the patent of down jacket for the first time in the United States. Bargay is a businessman and an activist who loves outdoor sports.

19202/kloc-0 Bauer started his own business. He rented a storefront in Seattle with only 10 square meters. At first, the store only sold tennis-related products, but after a year of operation, Paul's business situation fell into a silent period. At this time, he wanted to expand the store, but he didn't have enough money. So he had to think of other ways. Bauer promises to provide a lifetime warranty service for every customer who buys goods from his store. Bauer once said that if the customer needs something that is not available elsewhere, then I will do it myself. If I don't make these goods, there will be many fewer customers.

Due to the demand for funds, Bauer turned the tennis shop into an outdoor merchandise store integrating fishing, tennis and sports. And he himself said that he would try his best to meet the needs of customers.

1935 10, Bauer went fishing with friends for the operation of the store. They gained a lot from frozen music, and the food they caught weighed 90 Jin. Because of the cold weather, his thick cotton-padded jacket hindered his movement, so he had to take off his heavy coat to carry food conveniently. In the process of handling, it wetted itself with a box of fish. The exhausted Bauer was gradually left behind by the team. Due to the cold weather, the moisture on Bauer gradually solidified. Fortunately, at this time, he had a revolver in his hand. He fired two shots and his friends noticed that he didn't keep up with the team. Friends came back for him after hearing the gunshots.

In any case, Paul will never give up the outdoor activities he loves. When he got home, he wanted a kind of warm clothes that didn't need to be so heavy. Bauer tried many times to design down jackets, but he didn't get a product that satisfied him. It suddenly occurred to him that when he was a child, Russian officers always wore down jackets to keep out the cold. At this time, he was inspired, carefully designed again and again, and slowly made a down jacket that satisfied him. ? B-9? This down jacket is a 1 down jacket of the US Air Force. It can keep the temperature at-2 1℃ for three hours and float for 24 hours with a load of 1 1 kg. The label of this down jacket says Eddie from West Asia, USA? Bauer.