Measuring and testing – Engine detonation – Specific type of detonation sensor
Reexamination Certificate
2007-04-10
2007-04-10
Kwok, Helen (Department: 2856)
Measuring and testing
Engine detonation
Specific type of detonation sensor
C310S329000
Reexamination Certificate
active
11098416
ABSTRACT:
A knock sensor is constructed by putting and fitting components including an annular piezoelectric element, terminal plate, insulating sheet and weight onto a base consisting of a flange portion and a tubular portion, forming a groove part on a tip outer circumferential surface of the tubular portion, fitting a stopper ring functioning to apply an axial preload to the components onto the tubular portion, and caulking fixedly the stopper ring and the tubular portion into the groove part.
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Kohashi Masao
Sawada Yoshiyuki
Takahashi Yoichiro
Yokoi Akito
Kwok Helen
Mitsubishi Denki & Kabushiki Kaisha
Sughrue & Mion, PLLC
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