Invention Grant
US08171842B2 Two-piece twist lock piston 有权
两片扭锁活塞

Two-piece twist lock piston
Abstract:
A piston includes a crown portion generally defining an axis and having a skirt connecting portion. The skirt connecting portion is defined, at least in part, by a first crown mating portion, a second crown mating portion positioned radially from the first crown mating portion, and a crown chamber surface extending between the first crown mating portion and the second crown mating portion. The piston also includes a skirt having a crown connecting portion. The crown connecting portion is defined, at least in part, by a first skirt mating portion, a second skirt mating portion, and a skirt chamber surface extending between the first skirt mating portion and the second skirt mating portion. The first crown mating portion is selectively coupled to the first skirt mating portion. The second crown mating portion is selectively coupled to the second skirt mating portion to define a piston chamber that is defined, at least in part, by the crown chamber surface and the skirt chamber surface.
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