Patent ID: 6926156
Filing Date: 2005-08-09
Classification: B01D,Y10T

Abstract:
1. A center tube for use with an oil filter cap which has a detent button operable to release said center tube from said filter cap, said center tube comprising: a tube body having a perforated portion defining a number of orifices; a post having a first end portion and a second end portion which is configured to be contacted by said detent button, wherein said second end portion of said post comprises a spheroid-shaped member having a maximum diameter that is larger than a minimum diameter of the post, said minimum diameter being located axially between the spheroid-shaped member and tube body; and a closure wall secured to the tube body and the first end portion so as to be located between the perforated portion and the spheroid-shaped member, the closure portion being imperforate so as to close an open end of the perforated portion without use of the post.