Internal-combustion engines – Free piston – Single chamber; one piston
Reexamination Certificate
2002-10-14
2010-10-19
Cuff, Michael (Department: 3741)
Internal-combustion engines
Free piston
Single chamber; one piston
C123S0460SC, C123S0460SC
Reexamination Certificate
active
07814871
ABSTRACT:
A portable powered device such as a tool, comprising a housing within which is defined a combustion chamber (8) for combustion of a mixture of fuel and a combustion-supporting gas, which mixture is compressed so as to be subjected to a pressure in excess of the ambient atmospheric pressure prior to combustion, combustion of the fuel/combination-supporting gas mixture providing the power by which the device performs its intended task, and wherein the combustion and/or a further combustive event provides the power to compress a successive fuel/combination-supporting gas mixture, such that a successive cycle of operation of the device may be performed without requiring manual compression of a fuel-combustion-supporting gas mixture by the user.
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Fry Robert Andrew
Hurlstone Christopher John
Kirkwood Stephen Philip
Barnes & Thornburg LLP
Cuff Michael
Nguyen Hung Q
Team Holdings Limited
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