A - Human Necessities – 01 – M
Patent
A - Human Necessities
01
M
A01M 7/00 (2006.01) A01M 21/00 (2006.01) B05B 1/00 (2006.01)
Patent
CA 2081255
Abstract of the Disclosure A delivery system for a liquid chemical agent is especially adapted for thin oil/water inverts and includes recirculation for agitating the agent and a nozzle arrangement wherein uniform droplets are produced due to surface tension. The system has a reservoir, a first conduit which is airfoil shaped and has spray nozzles along its length, coupled to the first conduit through check valves, and a pump for moving the agent into the first conduit under pressure. A second conduit within the first has an inlet communicating with the reservoir and an outlet remote from the inlet along the first conduit. For discharge the agent is pumped into the two conduits in parallel, pressurizing and opening the check valves. For recirculation, the agent is pumped out of the first conduit and into the reservoir, thus producing negative pressure for closing the check valves and agitating the agent, which flows serially through the conduits. The negative pressure positively prevents leakage of the agent through any removed or stuck-open outlet, and by allowing ingress of air through a valve or the like the conduits can be drained into the reservoir. The conduits preferably are coupled to a base fitting having distinct couplings for the boom and the tube. The discharge nozzles each have a tubular housing leading smoothly from the trailing edge of the boom to a horizontal wedge shaped terminus. A manifold in the housing leads to capillary sized outlet openings along the terminus. The check valves are simple spring mounted plungers opening under pressure of the liquid.
Marks & Clerk
Waldrum Specialties Inc.
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