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US 2016/0240103 A1Published application
Counting Wheel Odometer with Movable Decimal Point
OwnerTony Jay Ballewinventor
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OwnerTony Jay Ballewinventor
Estimating the term…
An improved numeracy and place-value educational device which accurately displays a range of both whole-number and decimal place-value properties. A conventional counting-wheel odometer comprising a plurality of sequentially numbered counting wheels (10a-10f) and motion transfer components (not shown) is supported by a frame (12). A decimal carrier (20) moves laterally across a portion of the frame (16). The lateral movement allows a decimal point (20′) to precede or follow any numeral in a specific row displayed by the counting wheels (10a-10f). A place value band (18) displays place value names (19a-19f). Its movement, in unison with the decimal carrier (20) and a moveable comma (24′), maintains the correct orientation of place-value names (19a-19f) in relation to the decimal point (20′). Force is applied to the motion transfer components which selectively rotate the counting wheels (10a-10f). A sequential, dynamic display of both whole-number and decimal place-value properties is presented consistently, accurately, and in an objective fashion.
In combination, a conventional odometer assembly of the type comprising a plurality of counting wheels with outer annular surfaces, each of said counting wheels having a sequential series of digits spaced evenly apart on said annular surfaces, motion transfer component means between said counting wheels for receiving rotational input, and axle means for rotatably securing said counting wheels adjacent to one another, the improvement comprising a support means for supporting said axle whereby said counting wheels may freely rotate, a decimal point symbol, a support means to support said decimal point symbol at predetermined height in relation to said digits, said support means to support said decimal point symbol also permitting lateral repositioning of said decimal point in relationship to said digits, and a means for transferring rotational force to said motion transfer components.
Dependencies are inferred from the claim text.