Patent ID: 7047868
Filing Date: 2006-05-23
Classification: F16D,F16J

Abstract:
1. A piston and cylinder assembly comprising: a cylinder defining a central bore and having an open rear end; a piston slidably mounted in the bore and having a rear end defining a rearwardly opening concavity; a retainer positioned in the concavity; a pushrod extending forwardly into the bore through the open rear end of the cylinder and having a forward, head end captured by the retainer; a clip positioned in the concavity and fixedly engaging the retainer to preclude displacement of the retainer from the concavity; the retainer including a rearward circular rim portion positioned in the rear end of the bore, a forward socket portion capturing the head end of the pushrod, and a plurality of circumferentially spaced axially extending ribs extending between the rearward rim portion and the forward socket portion and configured to fit flush in the concavity, the clip being positioned in an annular groove in the interior of the concavity and in an aligned annular groove in the retainer defined by a series of circumferentially spaced notches in the respective circumferentially spaced ribs.