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36:
343:. He developed 'ductile tungsten', which could be more easily drawn into filaments, by purifying tungsten oxide. Starting in 1911, General Electric marketed lamps using the new metal and they soon became an important source of income for GE. He applied for and received a patent (US#1,082,933) for this 'invention' in 1913. However, in 1928 a US court ruled that his 1913 patent was not valid as an invention.
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Wolff, Michael F. (1984). "William D. Coolidge: Shirt-sleeves manager: Famous for two wide-ranging inventions, this engineer proved himself an innovative manager as he guided the renowned GE Research
Laboratory through some of its most turbulent years".
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Coolidge became director of the GE research laboratory in 1932, and a vice-president of
General Electric in 1940, until his retirement in 1944. He continued to consult for GE after retirement.
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396:(US patent filed in 1913 and granted as US Patent 1,203,495 in 1916). Its basic design is still in use. He also invented the first rotating anode X-ray tube.
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Briant and, C.L.; Bewlay, Bernard P. (1995). "The
Coolidge Process for Making Tungsten Ductile: The Foundation of Incandescent Lighting".
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311:(MIT). After a year as a laboratory assistant, he went to Germany for further study and received his doctorate from the
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Furfari, F.A.T.; Brittain, J.E. (2004). "History - William D. Coolidge and
Ductile Tungsten".
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and a vice-president of the corporation. He was also famous for the development of "ductile
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for his invention of the hot cathode X-ray tube in 1963. In 1975 he was elected to the
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Brittain, J.E. (2006). "Electrical
Engineering Hall of Fame: William D. Coolidge".
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machines that allowed for more intense visualization of deep-seated anatomy and
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General
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his contributions to the incandescent electric lighting and the X-rays art
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263:; October 23, 1873 – February 3, 1975) was an American
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with info about his 1926 Franklin Award for the x-ray tube
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Members of the United States
National Academy of Sciences
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Protection of global biodiversity: converging strategies
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William
Coolidge's Case File at The Franklin Institute
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William
Coolidge explains medical imaging and X-rays.
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in 1944. The city of
Remscheid awarded him with the
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1111:Andrea Sella's Classic Kit: Coolidge's X-ray Tube
817:"National Academy of Sciences Memorial Biography"
408:, of which he was a member, awarded Coolidge the
1106:National Academy of Sciences Biographical Memoir
960:History William D. Coolidge and Ductile Tungsten
1385:Members of the American Philosophical Society
1145:
412:in 1914. He was elected to the United States
8:
385:. The Coolidge tube, which also utilized a
845:Lakshman D. Guruswamy, Jeffrey A. McNeely,
283:", which is important for the incandescent
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418:American Institute of Electrical Engineers
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455:, shortly before his death at age 101 in
327:Coolidge went to work as a researcher at
80:Learn how and when to remove this message
1117:Yankee scientist: William David Coolidge
43:This article includes a list of general
891:American Academy of Arts & Sciences
807:
849:. Duke University Press, 1998, p.333.
406:American Academy of Arts and Sciences
309:Massachusetts Institute of Technology
275:machines. He was the director of the
161:Massachusetts Institute of Technology
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319:of the Chemistry Department at MIT.
277:General Electric Research Laboratory
1119:, Mohawk Development Service, 1963
1019:IEEE Industry Applications Magazine
964:IEEE Industry Applications Magazine
439:in 1938. Coolidge was awarded the
416:in 1925. Coolidge was awarded the
271:, who made major contributions to
49:it lacks sufficient corresponding
25:
1365:People from Hudson, Massachusetts
373:, an X-ray tube with an improved
295:Coolidge was born on a farm near
1380:Howard N. Potts Medal recipients
1350:MIT School of Engineering alumni
371:Coolidge tube (hot cathode tube)
236:
34:
1355:20th-century American inventors
453:National Inventors Hall of Fame
435:in 1927. He was elected to the
27:American physicist and engineer
819:. National Academy of Sciences
437:American Philosophical Society
1:
1101:IEEE History Center biography
443:in 1939. He was awarded the
1390:Recipients of Franklin Medal
1345:IEEE Edison Medal recipients
414:National Academy of Sciences
307:from 1891 until 1896 at the
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995:10.1109/MSPEC.1984.6370272
675:X-ray apparatus and method
1360:American men centenarians
1090:The Cathode Ray Tube site
1068:10.1109/JPROC.2006.885128
873:10.1557/S0883769400045164
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966:, Sept/Oct 2004, page 10
887:"William David Coolidge"
369:In 1913 he invented the
1056:Proceedings of the IEEE
200:Duddell Medal and Prize
64:more precise citations.
1253:George Ashley Campbell
1115:John Anderson Miller,
366:
305:electrical engineering
232:William David Coolidge
220:Electrical engineering
18:William David Coolidge
1211:Arthur Edwin Kennelly
790:U.S. patent 1,971,812
777:U.S. patent 1,967,869
764:U.S. patent 1,946,312
751:U.S. patent 1,917,099
735:U.S. patent 1,714,975
722:U.S. patent 1,659,133
709:U.S. patent 1,655,455
696:U.S. patent 1,600,867
683:U.S. patent 1,550,507
670:U.S. patent 1,550,506
657:U.S. patent 1,543,654
644:U.S. patent 1,541,627
631:U.S. patent 1,529,344
618:U.S. patent 1,502,907
606:U.S. patent 1,437,290
593:U.S. patent 1,430,550
580:U.S. patent 1,409,989
567:U.S. patent 1,394,143
554:U.S. patent 1,365,638
541:U.S. patent 1,310,061
525:U.S. patent 1,250,093
512:U.S. patent 1,215,116
497:U.S. patent 1,211,092
488:U.S. patent 1,203,495
479:U.S. patent 1,082,933
429:Howard N. Potts Medal
364:
313:University of Leipzig
157:University of Leipzig
137:Schenectady, New York
118:Hudson, Massachusetts
940:search.amphilsoc.org
936:"APS Member History"
1335:American physicists
1175:William D. Coolidge
433:Louis E. Levy Medal
347:Improved X-ray tube
96:William D. Coolidge
1277:Ernst Alexanderson
1265:Edwin H. Armstrong
1223:Lewis B. Stillwell
958:James E. Brittain
912:"William Coolidge"
611:X-ray tube shield'
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1313:Otto B. Blackwell
1307:Karl B. McEachron
1259:John B. Whitehead
1241:Dugald C. Jackson
1217:Willis R. Whitney
1205:Bancroft Gherardi
1161:IEEE Edison Medal
1062:(11): 2045–2048.
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463:Later career
459:, New York.
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186:Hughes Medal
131:(1975-02-03)
76:
67:
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1375:1975 deaths
1370:1873 births
1025:(5): 9–10.
457:Schenectady
377:for use in
341:light bulbs
291:Early years
145:Nationality
62:introducing
1329:Categories
974:References
945:2023-05-18
921:2023-05-18
897:2023-05-18
823:2008-05-09
787:Coolidge,
774:Coolidge,
769:X-ray tube
761:Coolidge,
756:X-ray tube
748:Coolidge,
732:Coolidge,
719:Coolidge,
706:Coolidge,
693:Coolidge,
680:Coolidge,
667:Coolidge,
654:Coolidge,
641:Coolidge,
628:Coolidge,
615:Coolidge,
603:Coolidge,
590:Coolidge,
577:Coolidge,
564:Coolidge,
551:Coolidge,
538:Coolidge,
522:Coolidge,
509:Coolidge,
503:X-ray tube
494:Coolidge,
485:Coolidge,
476:Coolidge,
285:light bulb
70:March 2013
45:references
1235:Gano Dunn
1168:1926–1950
1076:0018-9219
1039:1077-2618
1003:0018-9235
394:radiology
337:filaments
265:physicist
1229:Alex Dow
1047:39008486
423:in 1927
390:filament
387:tungsten
333:tungsten
281:tungsten
269:engineer
148:American
1011:3204491
471:Patents
375:cathode
58:improve
1315:(1950)
1309:(1949)
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1177:(1927)
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1009:
1001:
740:X-ray
400:Awards
383:tumors
297:Hudson
216:Fields
203:(1941)
196:(1939)
189:(1927)
182:(1927)
175:Awards
139:, U.S.
120:, U.S.
47:, but
1043:S2CID
1007:S2CID
802:Notes
742:anode
379:X-ray
273:X-ray
1121:ISBN
1072:ISSN
1035:ISSN
999:ISSN
404:The
267:and
126:Died
111:Born
1064:doi
1027:doi
991:doi
962:in
869:doi
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780:, "
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