Patent ID: 7802586

Claim:
A vacuum breaker for use with a flush valve assembly, the vacuum breaker comprising: a flow control insert; a substantially cylindrical tubular body having a first end and a second end, the first end having a rim extending away from the body and a ledge extending axially away from the rim, each of said rim and said ledge having an inner surface, wherein the rim and ledge define an L-shaped profile wherein the flow control insert is releasably seated adjacent to said inner surface of said rim and said inner surface of said ledge, said ledge having a top surface located one of substantially within or slightly below the plane of a top surface of the flow control insert such that the top surface edge portions of the flow control insert are exposed; a retainer bead positioned at the first end of said body and extending axially away from said inner surface of said ledge, wherein an inner circumferential surface of said retainer bead contacts an outer peripheral edge of said flow control insert, whereby the peripheral edge is defined as an edge surface bridging a top and bottom circumferential surface of said flow control insert, thereby providing a friction fit between the flow control insert and the ledge, whereby the peripheral edge of the flow control insert squeezes said retainer bead flush against the inner surface of the ledge, and a planar top surface of said flow control insert extends above a top surface of said retainer bead, whereby said flow control insert is releasably attached to said body; and a plurality of lip seals positioned at the second end of the body, wherein each lip seal defines a slit therein for allowing the passage of water through the vacuum breaker.