Measuring and testing – Simulating operating condition – Marine
Reexamination Certificate
2007-01-23
2007-01-23
McCall, Eric S. (Department: 2855)
Measuring and testing
Simulating operating condition
Marine
Reexamination Certificate
active
11219237
ABSTRACT:
After a driven sprocket into which a ball bearing is press-fitted is pushed into a cylindrical portion of a pump cover, a sensor jig is set so as to have its legs extending from a base plate in contact with an end face of the cylindrical portion, and a front end of a sensor plate movable in parallel with the leg13in contact with an end face of the ball bearing. When the driven sprocket is not in a normal position in relation to the oil pump, the sensor plate intersects a light path between a light-emitting device and a light-receiving device placed as opposed to each other on the base plate, and on the other hand, when the driven sprocket is in a normal position, a light-passing hole formed in the sensor plate comes on the light path between the light-emitting device and the light-receiving device. Thereby it can be automatically determined based upon absence or presence of an optical signal from the light-receiving device whether or not an attachment state is appropriate.
REFERENCES:
patent: 4353445 (1982-10-01), Moss
patent: 5934234 (1999-08-01), Shichinohe et al.
patent: 2005/0085329 (2005-04-01), Kawakubo et al.
Makita Kenichi
Sato Manabu
Takahashi Yuji
JATCO Ltd
McCall Eric S.
Rossi Kimms & McDowell LLP
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