Patent ID: 6966457

Claim:
A device for squeezing collapsible tubes comprising: (a) two opposed lever handles, of handheld size, each said lever handle having inward facing surfaces, (b) a primary roller, having a substantially cylindrical outer surface, (c) a secondary roller, having a substantially cylindrical outer surface, (d) means for rotatably connecting said lever handles to form a double non-crossing class 1 lever arrangement, said lever handles being positioned so that said inward facing surfaces are approximately parallel and sufficiently separated to pass a flattened collapsible tube therebetween, (e) means for rotatably attaching said primary roller to one of said lever handles and for rotatably attaching said secondary roller to the other of said lever handles, such that said rollers are substantially parallel and adjacent, (f) actuating means for rotating said primary roller and thereby advancing said device along a collapsible tube, (g) spring means for providing a torque which compels said lever handles to pivot in a direction which bears said rollers together with a force sufficient to squeeze and flatten a collapsible tube and expel the contents therefrom.