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

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Patent No. 6368227

Method of swinging on a swing

A method of swing on a swing is disclosed, in which a user positioned on a standard swing suspended by two chains from a substantially horizontal tree branch induces side to side motion by pulling alternately on one chain and then the other.

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Class 209/520 - Sensor responsive to item contact


Subclass of Class 209 - Classifying, separating, and assorting solids
Definition: Methods and apparatus wherein the sensing means responds
No. of applications: 1
Last issue date: 06/16/2005


Application No.Application TitleIssue Date
20050126959Device and method for sorting of bent elongated articles
The invention relates to a device for sorting of bent elongated articles, in particular of rods or tubes, which have a measuring span with an inclined plane, down which the articles roll, and a separating system provided at the outlet end of the measuring span for sorti... 		06/16/2005
 
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