Surgery – Instruments – Cyrogenic application
Reexamination Certificate
2005-08-23
2009-11-10
Peffley, Michael (Department: 3739)
Surgery
Instruments
Cyrogenic application
C606S020000
Reexamination Certificate
active
07615048
ABSTRACT:
An engine comprises a liquid piston disposed within a chamber of an engine body. The chamber is defined by at least one wall. The liquid piston has one or more free surfaces that are not in contact with the chamber wall. A laser directly heats the free surface of the liquid piston. A gas spring is disposed within the chamber adjacent the free surface of the liquid piston and within the propagation path of the laser energy. The engine also includes a spring mechanism. The spring mechanism is positioned within the housing to exert pressure on another surface of the liquid piston.
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Hupczey, Jr. Ronald J
Knobbe Martens Olson & Bear LLP
Peffley Michael
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