Diffusion Pump (Replica)

Diffusion Pump (Replica)

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Description
Irving Langmuir (1881-1957) received a PhD in chemistry at Gottingen in 1906 and joined the scientific staff at the General Electric Research Laboratory in Schenectady, New York, in 1909. While studying light bulbs, he made important improvements to the diffusion pump, and these ultimately led to the invention of the high-vacuum rectifier and amplifier tubes.
This is a glass replica of Langmuir’s first diffusion pump. The "WILMAD GLASS CO., INC. LANDISVILLE, N.J.” inscription refers to a precision glass firm that was in Landisville by 1951, and in Buena by 1970. It now does business as Wilmad-LabGlass.
Ref: B. B. Dayton, “History of the Development of Diffusion Pumps,” pp. 107- in Paul A. Redhead, ed., Vacuum Science and Technology. Pioneers of the 20th Century (1994).
Location
Currently not on view
Object Name
diffusion pump (replica)
Measurements
overall: 34 1/2 in x 10 3/4 in x 4 in; 87.63 cm x 27.305 cm x 10.16 cm
overall: 11 in x 34 1/2 in x 4 in; 27.94 cm x 87.63 cm x 10.16 cm
ID Number
PH.315951
catalog number
315951
accession number
222955
See more items in
Medicine and Science: Physical Sciences
Data Source
National Museum of American History
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