Optics: measuring and testing – Position or displacement
Reexamination Certificate
2007-02-26
2009-12-08
Stafira, Michael P (Department: 2886)
Optics: measuring and testing
Position or displacement
Reexamination Certificate
active
07630090
ABSTRACT:
An oven width measuring instrument capable of measuring the oven width continuously while being subject to no restrictions of measurement area or measuring time has: a sensor unit SU composed of an integrated combination of laser displacement sensors16and17each containing a beam emitting element and a beam receiving element in an outer package, a plurality of plate-like Peltier elements20a-20dsurrounding the outer package and arranged so as to direct their heat absorbing faces toward the outer package, an aluminum inner frame18for embedding gaps between the outer package and the heat absorbing faces of the Peltier elements, and cooling fin groups21a-21darranged on the heat radiating faces of the Peltier elements; and a housing13having an introduction part for introducing cooling air, a discharging part for discharging the cooling air used for cooling, and measurement windows26and28through which laser beams are passed. The sensor unit SU is accommodated in the housing.
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Inamasu Hironobu
Sato Manabu
Takayama Nobuki
Yamashita Hirofumi
Birch & Stewart Kolasch & Birch, LLP
Kansai Coke and Chemicals Co., Ltd.
Stafira Michael P
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