Patent ID: 7703545
Filing Date: 2010-04-27
Classification: B05B

Abstract:
1. A fire-fighting monitor comprising: a first body having an internal passageway defining an inlet and an outlet; a coupler having an internal passageway defining an inlet and an outlet, said coupler being pivotally mounted to said body at said outlet of said body wherein said internal passageway of said coupler is in communication with said internal passageway of said body, and said coupler having at least one pivot axis; and a counterbalance device, said counterbalance device comprising an annular member mounted to said first body at said pivot axis, said counterbalance device further comprising a pivot member mounted to said coupler and a second unitary body mounted about said pivot member, said second unitary body being adapted to engage and generate an interference with an inner surface of said annular member when said coupler is pivoted about said pivot axis in a first direction and adapted to release the interference with said inner surface of said annular member when said coupler is pivoted about said pivot axis in an opposed second direction from said first direction.