Logan Belleville: Difference between revisions

Revision as of 06:12, 31 August 2021

Logan M. Belleville (b. Oct. 29, 1909 in Twin Falls, ID – d. Jan 8, 2000 in Vancouver, WA) was a Tektronix engineer.

Previously a development engineer at the U.S. Forest Service Radio Lab, he had worked at the MIT Radiation Laboratories during WWII and joined Tektronix in 1946 to become the young company's second engineer. He left Tektronix in 1953.

Tektronix Products

Designed 512
Co-designed 511
Co-designed 517
...

Products by Logan Belleville

Model	Class	Description	Designers	Introduced
511	Oscilloscope	10 MHz Tube scope First Tektronix oscilloscope	Frank Hood • Logan Belleville • Howard Vollum	1947
512	Oscilloscope	Early 2 MHz scope	Logan Belleville	1948
511A	Oscilloscope	10 MHz Tube scope	Frank Hood • Logan Belleville • Howard Vollum	1948
517	Oscilloscope	50 MHz scope	Logan Belleville • Dick Rhiger	1951

Components by Logan Belleville

Patents by Logan Belleville

Page	Office	Number	Title	Inventors	Company	Filing date	Grant date
Patent US 2577506A	US	2577506A	Amplifier	Logan Belleville	Logan Belleville	1945-07-09	1951-12-04
Patent US 3461386A	US	3461386A	Coaxial switch using reed switch and assembly and system with isolated actuating coil	Sam McCutcheon • Logan Belleville • William H Ewin	Automated Measurements Corp	1966-01-17	1969-08-12

Links

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 |Death place=Vancouver, WA
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 |Affiliations=U.S. Forest Service Radio Lab; MIT Radiation Laboratories; Tektronix;
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 }} was a Tektronix engineer.
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 {{Designer|Logan Belleville}}
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-==Patents==
-* [http://www.google.com/patents/US2577506 US2577506: Amplifier] - filed 9 Jul 1945, granted Dec 4 1951 (logarithmic amplifier)
-* [http://www.google.com/patents/US3461386 US3461386: Coaxial switch using reed switch and assembly and system with isolated actuating coil]  Filed 17 Jan 1966, granted 12 Aug 1969
 ==Links==