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Class 137/484 - Unbalanced pivoted valve (e.g., unbalanced butterfly type)


Subclass of Class 137 - Fluid handling
Definition: Apparatus in which a biased valve having at least a flat
No. of patents: 1
Last issue date: 11/30/2004


NumberTitleIssue Date
6823785Printing unit
A printing unit has at least four cylinders that form a printer. At least two of these four cylinders rotate independently of each other. At least one of the cylinders in the group of at least four cylinders has a set up rotational speed that is not zero and that is... 		11/30/2004
 
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