Patent ID: 9249883
Filing Date: 2016-02-02
CPC Classification: F16D,F16H,F16J

Claim Text:
1. A piston assembly for use in an automatic transmission, the piston assembly comprising: a annular piston; an annular piston cylinder disposed concentrically within the piston and having portions forming a receiving slot on an inner facing side of the piston cylinder; and a piston guide having a main body portion and an alignment protrusion extending from the main body portion, the piston guide being attached to the piston, the alignment protrusion being slidably disposed in the receiving slot of the piston cylinder with the piston guide separated from the piston by a wall of the piston cylinder, the alignment protrusion comprising a main alignment portion and a spring lever, the spring lever being separated from the main alignment portion by a gap, the piston guide having a compressible material disposed in the gap.