Patent ID: 8657524
Filing Date: 2014-02-25
Classification: E01C,E03F

Abstract:
1. A restrictor plate assembly for installation into a curb box hood to restrict particulate flow through an inlet mouth into a cavity of the curb box hood; the assembly comprising: a lengthwise proximate member including a proximate forward facing surface, a proximate rearward facing surface, and a lengthwise distal end tab projecting away from the proximate forward facing surface; a lengthwise distal member including a distal forward facing surface, a distal rearward facing surface and a lengthwise intermediate tab projecting away from the distal forward facing surface; and an urging member manipulatable to urge the distal end tab and the intermediate tab away from each other, whereby: the rearward facing surface of the lengthwise proximate member is made to slide lengthwise against the forward facing surface of the lengthwise distal member to increase a length of the restrictor plate assembly until the lengthwise proximate member engages a widthwise proximate internal side wall of the curb box hood and the lengthwise distal member engages a widthwise distal internal side wall of the curb box hood, thereby securing the restrictor plate assembly within the hood.