Patent ID: 6491181
Filing Date: 2002-12-10
Classification: C02F,Y10T

Abstract:
A treatment tank for a water conditioning apparatus, comprising a sidewall:a tank head secured to said sidewall and having a wall with an interior surface and a noncircular rim defining a first through hole in said wall; a generally cylindrical flange defining a first aperture and having a first nipple portion with a periphery and a noncircular portion radially extending from said periphery of said nipple portion, configured to matingly engage said noncircular rim so that contact between said noncircular rim and said noncircular portion peripheral wall prevents rotation of said flange relative to said tank head; a first fastener engageable on said first nipple portion to secure said flange on said tank head through contact between said fastener and said tank head; and said wall further includes a second rim defining a second through hole, and said flange further includes a second nipple portion defining a second aperture, and having a second ledge radially extending from said second nipple portion and attached to said first ledge.