Diffusion Pump (Replica)
notes: label: Description
content: 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.
label: Description
content: 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.
label: Description
content: Ref: B. B. Dayton, “History of the Development of Diffusion Pumps,” pp. 107- in Paul A. Redhead, ed., <i>Vacuum Science and Technology. Pioneers of the 20th Century</i> (1994).
label: Location
content: Currently not on view
setName: label: See more items in
content: Medicine and Science: Physical Sciences
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: PH.315951
label: catalog number
content: 315951
label: accession number
content: 222955
objectType: label: Object Name
content: diffusion pump (replica)
physicalDescription: label: Measurements
content: overall: 34 1/2 in x 10 3/4 in x 4 in; 87.63 cm x 27.305 cm x 10.16 cm
label: Measurements
content: overall: 11 in x 34 1/2 in x 4 in; 27.94 cm x 87.63 cm x 10.16 cm