Peristaltic pump and trailer mounted self pumping sprayer system incorporating same
AssigneeChapin Manufacturing, Inc.
InventorJames R. Fontaine
Life of this patent
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AssigneeChapin Manufacturing, Inc.
InventorJames R. Fontaine
Estimating the term…
A sprayer system having a trailer, which is pulled by a tractor or other tow body, and has a tank carrying liquid to be sprayed and a spray head. The trailer has a peristaltic pump mounted on a frame and driving pumping power from the wheels of the trailer so that the sprayer is self pumping when the trailer is pulled. The peristaltic pump provides a smooth flow by providing a multiplicity of pulses of liquid produced by the pump from the rotation of the trailer wheels by wrapping the compressible tube of each pump around an assembly of rollers which are rotated by drive wheels. The tube is wrapped at least 360° around the rollers and is held stationary by being connected to fixed outlet and inlets of each pump. The tube lies side by side on at least one of the rollers of each assembly and overlaps that roller.
A peristaltic pump sprayer system configured to provide a steady continuous spray of a liquid, the system comprising:
A peristaltic pump for a sprayer comprising a compressible tube mounted to a bracket plate on a frame, said compressible tube having inlet and outlet ends and which carries liquid being pumped through said tube from said inlet end to said outlet end, said tube extending in a path around a plurality of rollers circumferentially spaced from each other, said rollers configured to rotate about an axis of rotation to successively engage and compress said tube to pump the liquid in a plurality of successive pulses along the tube, wherein said tube is wrapped helically around the rollers so that said tube is disposed in side by side relationship on at least one of said rollers intermediate said path, said inlet end is anchored at a first planar end flap of said bracket plate, said outlet end is anchored at a second planar end flap of said bracket plate, wherein the first planar end flap and second planar end flap are arranged in non-parallel relation with respect to one another.
Dependencies are inferred from the claim text.