U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

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...that it was melting ice cream that inspired the invention of the outboard motor? It was a lovely August day and Ole Evinrude was rowing his boat to his favorite island picnic spot. As he rowed, he watched his ice cream melt and wished he had a faster way to get to the island. At that moment the idea for the outboard motor was born!

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Class 474/55 - Collar interconnected with rim sections via pivoted link


Subclass of Class 474 - Endless belt power transmission systems or components
Definition: Subject matter wherein the ringlike member is connected
No. of patents: 2
Last issue date: 07/18/2006


NumberTitleIssue Date
7077771Automatic stepless speed-changing mechanism
An automatic stepless speed-changing mechanism mainly includes a pivotal shaft, a plurality of mounting discs mounted along the pivotal shaft and provided with radially extended guide rails, a plurality of axial rods separately axially extended through the guide rai...
07/18/2006
4129044Variable gear ratio chain drive system for bicycles
A finite range infinitely variable gear ratio chain drive system incorporates a drive sprocket assembly having a plurality of radially displaceable sprocket gears. Each of the sprocket gears is mounted upon a shaft extending intermediate two spaced apart ...
12/12/1978
 
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