Sink flange and collar assembly for a food waste disposer

Abstract

A sink flange and collar assembly for a food waste disposer includes a sink flange having a tubular body portion and an annular flange transversely extending from the tubular body portion. An outer radial surface of the tubular body portion having at least one first dimple extending outwardly from the outer radial surface. A collar has a dimple attachment recess adapted to slidably receive the at least one first dimple, and a dimple insertion track transversely oriented to the dimple attachment recess to releasably engage with the at least one dimple to releasably engage the collar to the sink flange.

1 . A sink flange and collar assembly for a food waste disposer, comprising:
 a sink flange having a tubular body portion and an annular flange transversely extending from the tubular body portion, an outer radial surface of the tubular body portion having at least one first dimple extending outwardly from the outer radial surface; and   a collar having a dimple attachment recess adapted to slidably receive the at least one first dimple, and a dimple insertion track transversely oriented to the dimple attachment recess to releasably engage with the at least one dimple to releasably engage the collar to the sink flange.   
     
     
         2 . The assembly of  claim 1 , wherein the sink flange further includes at least one second dimple extending inwardly from an inner radial surface of the tubular body. 
     
     
         3 . The assembly of  claim 2 , further including at least one reed switch attached to the collar actuated by a magnet disposed in a strainer when the strainer is received in the sink flange and the magnet aligned with the reed switch. 
     
     
         4 . The assembly system of  claim 1 , further comprising:
 a plurality of threads on the collar; and   a collar nut threadably engageable with the plurality of threads of the collar, the collar nut and the annular flange receiving a sink body therebetween when the collar nut is threadably engaged with the collar and the tubular body portion of the sink flange is positioned in a bottom opening of a sink.   
     
     
         5 . The apparatus of  claim 1 , wherein the collar nut includes a collar flange connected to a body, the body of the collar nut further having:
 an inner surface having a plurality of threads on an inner surface that threadably engage the plurality of threads of the collar, the collar nut having at least one grip rib.   
     
     
         6 . The apparatus of  claim 1 , wherein the dimple insertion track is located at and extends transversely away from an end of the dimple attachment recess and prevents axial removal of the collar from the sink flange without the collar first being rotated.