Patent ID: 8074819

Claim:
A multi-chamber reservoir apparatus for fluids, comprising: an upper reservoir body and a lower reservoir body, said bodies configured for welding together to define a plurality of closed fluid chambers therein including a pressure chamber and an overflow chamber; a pressure relief device interposed in a fluid flow path between said pressure chamber and said overflow chamber, said fluid flow path having a first passage extending between said pressure chamber and said relief device and a second passage extending between said relief device and said overflow chamber; a siphon tube designed for snap-in mounting into said lower reservoir body and having a fluid discharge opening, said siphon tube having a first end, an opposing second end and an internal passage in communication with said discharge opening and forming a portion of said second passage, said siphon tube including: an orientation feature for enforcing desired alignment of said siphon tube into said lower reservoir body, said fluid discharge opening configured to deliver to and draw fluid from said overflow chamber, said fluid discharge opening positioned proximate to a bottom wall of said lower reservoir body to enable fully draining said overflow chamber through said siphon tube; and a snap lock feature retentively mounting said siphon tube into said lower reservoir body, said snap lock feature holding said siphon tube in said desired alignment during welding of said reservoir bodies, said snap lock feature enabling no-leak welding of said siphon tube to said second passage during welding of said reservoir bodies; and wherein said lower reservoir body includes an upper clamp member arranged on an upper portion of an interior wall of said lower reservoir body; wherein said orientation feature includes a projecting tab arranged affixed to said upper clamp member; a complimentary indentation on said siphon tube; wherein said projecting tab is received into said complimentary indentation of said siphon tube.