Patent ID: 7909007

Claim:
A switchable roller finger follower comprising: an outer elongated body having a valve stem end, a lash adjuster end and two outer elongated body side walls; a first inner cavity in said outer elongated body; two lost motion spring pins attached to said lash adjuster end of said outer elongated body, said pins oriented transversely to a long axis of said outer elongated body; a lost motion spring stop located on an outer wall of said elongated body and adjacent said lash adjuster end; an inner elongated body positioned in said first inner cavity and having a first end pivotally attached to said outer elongated body at said valve stem end a second end adjacent said lash adjuster end of said outer elongated body and two inner elongated body sidewalls; a second inner cavity in said inner elongated body; two lost motion spring pallets, one of each of said pallets fixed on one of each of said inner elongated body side walls and adjacent said second end of said inner elongated body; a center cam follower in said second inner cavity a latch assembly for preventing pivoting of the inner elongated body; and a lost motion torsional spring device having two helical parts, one of each of said helical parts on one of each on said lost motion pins, each of said helical parts having a short leg and a long leg, the short leg of each of said helical part abutting said stop and the long leg of each of said helical part abutting one of said pallets.