Fluid sprinkling – spraying – and diffusing – With agitation of supply means
Patent
1987-07-24
1989-01-17
Kashnikow, Andres
Fluid sprinkling, spraying, and diffusing
With agitation of supply means
239333, 92 99, B05B 943
Patent
active
047983337
ABSTRACT:
A backpack agricultural sprayer has a pressure vessel mounted within a container and connected to a high pressure piston pump to force liquid into the pressure vessel from which it may be discharged for spraying. Leakage of liquid past the sprayer pump is contained by a leak-proof diaphragm which defines an agitation chamber connected by a conduit to the interior of the sprayer container. The diaphragm and piston are connected to be operated together to provide two separate but simultaneously acting pumps. The piston pump pressurizes the pressure vessel, and the diaphragm pump forces liquid back and forth between the container and diaphragm chamber to agitate contents of the container. An unique piston skirt is clamped by a single bolt between a skirt retainer and a piston body to provide a unitary assembly of diaphragm, piston body, skirt and skirt retainer. The skirt is resiliently urged outwardly to improve sealing and compensate for wear. The diaphragm chamber cover is threaded to the pump housing so that the cover may be removed for repair or replacement of the inner pump parts.
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Kashnikow Andres
Weldon Kevin P.
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