Patent ID: 7374145

Claim:
A fluid reservoir comprising: a reservoir tank for holding a fluid therein, said tank being positionable at an upper portion of an engine compartment of a vehicle; a bracket connected with the tank and mountable to the vehicle; and an attaching portion arranged with the bracket and configured so that the tank is movable when the tank receives an impact force thereto larger than a predetermined value; wherein the attaching portion comprises a boss portion fixable to the vehicle and a flange portion arranged around the boss portion and connected to the tank; the flange portion being movable with respect to the boss portion so as to absorb the impact force to the tank, wherein the attaching portion comprises a plurality of rib portions connecting the boss portion to the flange portion, said rib portions being spaced apart circumferentially with cavities formed therebetween and lie in a same plane as said flange portion; and the rib portions are fracturable so that the tank is moved with respect to the vehicle when the tank is impacted.