Measuring and testing – Test stand – For engine
Patent
1987-07-22
1989-02-07
Levy, Stewart J.
Measuring and testing
Test stand
For engine
204424, G01N 2726
Patent
active
048023698
ABSTRACT:
A sensor structure including a ceramic detecting element mounted in a metal sleeve through an insulator, the metal sleeve being fixed to a main metal tubular member through heat-sealing, and the metal sleeve is sealed. Due to the use of the metal sleeve, splitting and cracking are eliminated, always maintaining good airtightness and protecting the sensor from damage.
REFERENCES:
patent: 4123131 (1978-10-01), Pearce, Jr. et al.
patent: 4560463 (1985-12-01), Frey et al.
patent: 4569748 (1986-02-01), Yamakawa et al.
patent: 4591423 (1986-05-01), Kato et al.
patent: 4597849 (1986-07-01), Burkhardt et al.
patent: 4624770 (1986-11-01), Yamada et al.
Levy Stewart J.
NGK Spark Plug Co. Ltd.
Raevis Robert R.
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