Closet flange with knockout

A closet flange comprising a body having a lower body portion containing a bore and an upper body portion containing an inlet opening communicating with the bore, at least a portion of the inlet opening having a larger diameter than the bore, and a knockout recessed within the body for closing off the bore, the knockout having a frangible connection with an interior wall of the bore to permit the knockout to be broken out of the bore, and at least one vertical upright extending axially upwardly from the knockout within the inlet opening, the vertical upright having at least one protrusion that extends radially outwardly beyond the bore in non-contacting relation from an interior wall of the inlet opening to permit the knockout to be broken out of the bore while preventing the knockout from passing all the way through the bore.

A closet flange comprising a body having a lower body portion containing a bore and an upper body portion containing an inlet opening communicating with the bore, at least a portion of the inlet opening having a larger diameter than the bore, and a knockout recessed within the body for closing off the bore, the knockout having a frangible connection with an interior wall of the body to permit the knockout to be broken out of the body, the knockout having one or more portions that extend vertically and radially outwardly beyond the frangible connection into the larger diameter portion of the inlet opening in non-contacting relation from an interior wall of the inlet opening to permit the knockout to be broken out of the bore while preventing the knockout from passing all the way through the bore.

A closet flange comprising a body having a lower body portion containing a bore and an upper body portion containing an inlet opening communicating with the bore, at least a portion of the inlet opening having a larger diameter than the bore, and a knockout recessed within the body for closing off the bore, the knockout having a frangible connection with an interior wall of the bore to permit the knockout to be broken out of the bore, and a plurality of circumferentially spaced protrusions extending vertiaclly from the knockout and radially outwardly from the knockout beyond the bore into the inlet opening to permit the knockout to be broken out of the bore while preventing the knockout from passing all the way through the bore.

A closet flange comprising a body having a lower body portion containing a bore and an upper body portion containing an inlet opening communicating with the bore, at least a portion of the inlet opening having a larger diameter than the bore, and a knockout recessed within the body for closing off the bore, the knockout having a frangible connection with an interior wall of the bore to permit the knockout to be broken out of the bore, and one or more protrusions extending radially outwardly from the knockout beyond the bore into the inlet opening to permit the knockout to be broken out of the bore while preventing the knockout from passing all the way through the bore, wherein the one or more protrusions extend radially outwardly from at least one vertical upright extending axially upwardly from the knockout within the inlet opening.