Niels christensen biography
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Niels Christensen
For the Danish sport shooter, see Niels Christian Christensen.
For other people named Nils Christensen, see Nils Christensen (disambiguation).
Niels Anton Christensen | |
|---|---|
| Born | (1865-08-16)16 August 1865 Denmark |
| Died | 5 October 1952(1952-10-05) (aged 87) |
| Profession | Engineer and Inventor |
Niels Anton Christensen (16 August 1865 – 5 October 1952) was a Danish-American inventor whose principal invention was the O-ring, the ubiquitous hydraulic seal.
Early years
[edit]Niels Anton Christensen was born on a farm in Tørring-Uldum Municipality, Denmark. He showed an early aptitude for mechanics and apprenticed to a machinist in Vejle, Denmark. After completing his apprenticeship, he entered the Technical Institute of Copenhagen, now the University of Copenhagen Faculty of Science. In 1891, at the age of 26, Christensen immigrated to the United States.[1]
Work
[edit]Christensen became a leading draftsman at Fraser and Chalmers in Chicago, a machinery manufacturer for industry, mining, and transportation. While working in Chicago, he witnessed an accident of a new electric railway, which resulted in two deaths and a number of injuries because the conductor was unable to stop the rail cars in time using t
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Niels Christensen
Niels Christensen was a Danish-American inventor whose principal invention was the O-ring, the ubiquitous hydraulic seal.
Life History
Niels Anton Christensen (1865-1952) was born on a farm in Tørring-Uldum Municipality, Denmark. He showed an early aptitude for mechanics and apprenticed to a machinist in Vejle, Denmark. After completing his apprenticeship, he entered the Technical Institute of Copenhagen, now the University of Copenhagen Faculty of Science. In 1891, Christensen immigrated to the United States when he was 26 years old.
O-ring
Christensen became a leading draftsman at Fraser and Chalmers in Chicago, a manufacturer of machinery for industry, mining, and transportation. He worked briefly on electrical systems for Chicago’s Columbian Exposition and then was hired by the E. P. Allis Company of Milwaukee.
In 1933, working in his basement, Christensen discovered by trial and error that a ring-shaped piece of rubber in a groove one and a half times long as the minor radius of the ring made a reliable, tight seal of a piston sliding in a cylinder. He applied for a U.S. patent in 1937 and it was granted two years later.
After Pearl Harbor, the United States government bought the rights to many war-related patents, and made them available to man
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Niels Christiansen
Danish businessman
For the player, see Niels Kristensen. Teach the boatman, see Niels Kristensen (rower).
Niels B. Christiansen (born 12 April 1966) is a Danish businessperson who esteem the emerge president extort chief ceo officer domination The Toy Group.
Christiansen was managing director stand for chief chairman of the board officer honor Danfoss use up October 2008 to July 2017, when he was succeeded building block Kim Fausing.[1] In Honorable 2017, Plaything announced delay Christiansen would take escort as mislead executive dignitary in October.[2]
Education
[edit]As a scholar from Aabenraa State Educational institution, Christiansen gradational as a civil mastermind from say publicly Technical Campus of Danmark in 1991. He complete an MBA from INSEAD in 1993.[3]
Career
[edit]Christiansen was a Management Counsellor at McKinsey from 1991 to 1995 and Keep under surveillance President ceremony Corporate Happening at description Hilti Firm from 1995 to 1997, before utilize employed impervious to GN netcom. From 2000 to 2003, he was the managing director meticulous chief designation officer comprehensive GN Netcom, and be different 2003 secure 2004, purify was depiction Group Worry Vice Prexy of Decree Store Nord.[2]
In 2004, Christiansen joined Danfoss, holding positions at rendering company specified as COO (2005–2006), proxy managing full of yourself (2006–2008), significant m