Weighing scales – Self-positioning – Electrical current generating or modifying
Reexamination Certificate
2007-07-05
2011-10-25
Gibson, Randy W (Department: 2841)
Weighing scales
Self-positioning
Electrical current generating or modifying
C177S212000, C073S001130
Reexamination Certificate
active
08044308
ABSTRACT:
An electronic balance is provided where precise correction can be carried out by using incorporated weight and the weight and the size can both be reduced. The electronic balance is provided with a main Roberval mechanism R1for conveying the load of an object to be measured mounted on a scale16, a first beam14to which the main Roberval mechanism R1is connected, and at the same time, a connection means43is connected, a second beam42to which the first beam14is connected via the connection means43, and at the same time, an electromagnetic force generating apparatus17for generating an electromagnetic force which is balanced with the load of the object to be measured that is conveyed from the first beam14is connected, incorporated weight18for correction, a sub-Roberval mechanism R2for conveying the load of the incorporated weight in the vertical direction, and a linking member44for conveying the load of the incorporated weight to the second beam42via the sub-Roberval mechanism R2, and characterized in that the linking member44is connected the second beam42on the electromagnetic force generating apparatus17side relative to the second fulcrum41.
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Gibson Randy W
Shimadzu Corporation
Sughrue & Mion, PLLC
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