Patent ID: 8449494

Claim:
A device for preparing foam; the device comprising: a first housing having a first chamber therein and a first movable member positioned at least partially within the first housing; a second housing having a second chamber therein, the second chamber being selectively and operably connectable to the first chamber, the second housing comprising a biasing member and a second movable member therein, the biasing member biasing the second movable member toward a first end portion of the second housing; a valve operably connected to the first chamber and the second chamber and movably positionable to selectively control the connection between the first chamber and the second chamber; and a handle operably connected to the first movable member, the handle comprising a first portion and a second portion movable relative to each other, the handle being movable to bias the first movable member toward a first end portion of the first housing, wherein the handle and the biasing member cooperatively bias the first movable member and the second movable member so that the first movable member is biased toward a first end portion of the first housing and the second movable member is biased toward a second end portion of the second housing as the handle biases the first movable member toward the first end portion of the first housing.