Shanghai Sunland Industrial Co., Ltd is the top manufacturer of Personal Protect Equipment in China, with 20 years’experience. We are the Chinese government appointed manufacturer for government power,personal protection equipment , medical instruments,construction industry, etc. All the products get the CE, ANSI and related Industry Certificates. All our safety helmets use the top-quality raw material without any recycling material.
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They say necessity is the mother of ,invention, - that the primary driving force for all new creations is some sort of need. Each of these 15 brilliant new ,inventions, answers a different human need - such as clean water or sanitation - or an environmental necessity.
By Seth Masia At the 19th convention of the International Society for Skiing ,Safety,, held at Keystone in May, 2011, researcher Jasper Shealy, Ph.D., professor emeritus of engineering at Rochester Institute of Technology, reported that from 1995 until 2010, ,helmet, use increased from 5% to 76%. Over that period, the rate of serious head injuries dropped by about 65% —from 1
The ,helmet, should fit comfortably and the strap should hold the ,helmet, in place, firmly. Make sure the ,helmet, has adequate ventilation holes, batting in hot weather is tough enough without having to cook inside your ,helmet,. Check for a ,safety, standards sticker with your purchase to make sure that the ,helmet, conforms to high standards of production.
Modern Helmets,. Numerous manufacturers, including CCM, Bauer and Reebok, have entered the hockey ,helmet, marketplace. Most ,modern, hockey ,helmets, feature the same general construction, with a hard outer shell made from plastic and other composite materials encasing a series of foam padding designed to cushion the head.
The first plastic ,helmets, were introduced in 1939 and a single face bar was later added. It was during this time that the NFL made ,helmets, mandatory. From the 1960s to the present, football ,helmets, have undergone changes to increase their ability to absorb impact. In the 1970s, the web-like interior was replaced with foam cells.
First opened by George Wight in 1923. The 500-TX, an early Bell ,helmet,, earned the Excellence of Design Award from the Museum of ,Modern, Art. The MoMa, one of New York City’s most prestigious art museums, still has four vintage ,helmets, on display. Clearly the Bell ,helmets, were cutting-edge from the …
Vern McMillan created first ,modern, facemask in 1935. McMillan had claimed that goals of his ,invention, were to create a mask that could be affixed to the ,helmet,. He created a mask that would not hinder the vision of players, protect their noses, and transfer impact to the outer shell of the ,helmet,.
22/12/2015, · The ,helmet, even had an oxygen tube attached so the person could breathe. While most of his tinkering dealt with radio construction and design, “The Isolator” was just one of his other odd creations. The ,invention,, as well as Science and ,Invention,, was the brainchild of Gernsback.