During World War II, the trampoline was used to train
pilots by getting them used to orienting themselves in the air. After the war Nissen continued to promote the trampoline and began touring in Europe and later the
Soviet Union promoting both the sport of "
rebound tumbling" and his trampoline equipment. Nissen set up a manufacturing plant for his company in England in 1956 headed up by
Ted Blake an English trampoline pioneer, first in Hainault then Romford and finally Brentwood, Essex by the mid-1960s, and manufactured trampolines there for many years. Brentwood still has a thriving trampolining community but no longer a local factory. But by the late 1970s other manufacturers had started to make similar equipment and eventually, although the word trampoline was originally trademarked by Nissen, it became a
generic trademark for rebound apparatus. Soon after, Nissen's company ceased operations in the 1980s. Nissen continued to have an influence on gymnastics and trampolining. In 1971, with Larry Griswold, he founded the
United States Tumbling & Trampoline Association (USTA). He has been honored by the sports of both trampolining and gymnastics. The USTA has the Griswold-Nissen Cup for an outstanding trampolinist. There is an international trampolining competition held in Switzerland called the Nissen Cup. In the United States, the
Nissen-Emery Award is given to the best male senior gymnast in the college gymnastics system. He sponsored the 1st. World Trampoline Championship at the Albert Hall, London in March 1964, which was commemorated by a stamp featuring Judy Wills, who became the first woman's champion and defended that title a further 7 times. Spaceball, which he invented, was his pet love and he sponsored the Nissen trophy for the first UK National champion, won by Nick Proctor in 1963. At the championship the USA team narrowly beat the GB team 7–6, 6–7, 7–6 in a demonstration international. "The History of World Trampolining" by Rob Walker. ==Later years==