Patent ID: 7305951

Claim:
A roller finger follower for use in a variable valve actuation train of an internal combustion engine, comprising: a) a low-lift cam follower having a central aperture, a first end for engaging a hydraulic lash adjuster, and a second end for engaging a valve of said engine, and including a shoe having a curved surface; b) a high-lift cam follower disposed to pivot in said central aperture about a pivot shaft in said low-lift cam follower and having a bore opening adjacent said shoe; c) a first compression spring disposed within said bore for action between an inner end of said bore and said shoe; and d) a spring retainer disposed between said spring and said curved surface of said shoe for guiding said spring during compression and extension thereof, said spring retainer comprises a planar bottom for engaging said curved surface and sidewalls slidably extending into said bore to guide said spring during said compression and extension, wherein said spring is substantially full-fitting within said sidewalls of said spring retainer, wherein said bore includes a step, and wherein said sidewalls include an annular groove on an outer surface thereof, and wherein a clip is disposed in said annular groove for engaging said step to limit travel of said spring retainer within said bore.