Sunpower: German Patents

The world leader in free-piston Stirling engines and coolers
and in linear compressors

German Patents

Patent Number	Title	Issue Date

19781873	Refrigeration Circuit Having Series Evaporators And Modulatable Compressor	06-April-06
60,023,514	DC Centering of Free Piston Machine	26-Oct-05
69,627,894	Triac Control Circuit	02-May-03
69,526,217	Fluid Bearing with Compliant Linkage for Centering Reciprocating Bodies	03-Apr-02
69,329,862	Free Piston Stirling Machine Having Variable Spring between Displacer and Piston for Power Controll and Stroke Limiting	10-Jan-01
69,611,387	Magnet support Sleeve for Linear electromechanical Transducer	27-Dec-00
69,518,926	Centering System with One Way Vallve for Free Piston Machine	20-Sep-00
69,403,468	Method and Apparatus for Measuring Piston Position in a Free Piston Compressor	16-Apr-98
218,682	Electromechanical Transducer	03-Apr-91

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