Patent ID: 8523477

Claim:
A restrictor plate system for a catch basin hood, comprising: a hood including: a front external surface, a front internal surface and an inlet extending therebetween; and a hood inlet defined by a plurality of adjoining surfaces, the surfaces including a top surface and a bottom surface oriented such that a height-wise cross-section of a flow channel defined by the hood inlet is substantially trapezoidal, and narrows from an upstream side towards a downstream side; and a restrictor plate including: a curbed inlet defined by a plurality of walls, the walls including a top wall and a bottom wall mutually arranged such that a curbed flow channel defined by a height-wise cross-section of the curbed inlet is substantially trapezoidal, narrowing from the upstream side towards the downstream side; wherein the top and bottom walls of the curbed inlet are disposed against respective top and bottom surfaces of the hood inlet when installed.