Apparatus and process for forming and spraying pesticidal invert emulsion

Claim 2

A continuous process according to claim 2, wherein said volumetric ratio is in a range from about 1:1 to about 7:1.

Claim 3

A continuous process according to claim 3, wherein said phases are mingled just sufficiently to form a Newtonian-type liquid mixture, nd said phases are introduced into said mechanical dispersing chamber by way of said mixture.

Claim 4

A continuous process according to claim 3, wherein prior to introduction into said chamber said phases are established and maintained at an initial hydrostatic pressure at least greater than atmospheric pressure and at most substantially at said sufficient hydrostatic pressure, and in said chamber said phases are established and maintained under such additional hydrostatic pressure that the total hydrostatic pressure of said phases in said chamber is at least said sufficient hydrostatic pressure.

Claim 5

A continuous process according to claim 5, wherein said mechanical dispersing chamber is provided by a pump, and the mechanical dispersing of said aqueous phase in said oil phase is provided by the pump action of said pump.

Claim 6

A continuous process according to claim 6, wherein said pump is a centrifugal pump.

Claim 7

Apparatus for making and spraying pesticidal invert emulsion from a Newtonian-type aqueous phase and a Newtonian-type oil phase, at least one of said phases containing in solution pesticide material at an effective concentration, and at least one of said phases containing at an effective concentration emulsifier material that promotes the formation of a water-in-oil emulsion when said aqueous phase is finally dispersed in said oil phase, which comprises: reservoir means for said aqueous phase and said oil phase; mechanical dispersing means having inlet means and outlet means; spray-forming means; feed conduit means for delivering said aqueous phase and said oil phase from aid reservoir means to said inlet means; said feed conduit means comprising pump means; and invert emulsion delivery conduit means for passing invert emulsion expelled from said outlet means to said spray-forming means, said invert emulsion delivery conduit means comprising valve means for regulating the flow of invert emulsion from said mechanical dispersing means to said spray-forming means, and thereby the residence time of said aqueous phase and said oil phase and the resulting invert emulsion in said mechanical dispersing means.

Claim 8

Apparatus according to claim 8, wherein said feed conduit means comprise separate feed conduits for said phases, which separate feed conduits join with a common conduit in combination with said inlet means.

Claim 9

Apparatus according to claim 9, wherein said mechanical dispersing means comprise a pump.

Claim 10

Apparatus for making and spraying pesticidal invert emulsion from a Newtonian-type aqueous phase and a Newtonian-type oil phase, at least one of said phases containing in solution pesticide material at an effective concentration, and at least one of said phases containing at an effective concentration emulsifier material that promotes the formation of water-in-oil emulsion when said aqueous phase is finely dispersed in said oil phase, which comprises: reservoir means for said aqueous phase and said oil phase; centrifugal pump means having inlet means and outlet means; spray-forming means; feed conduit means for delivering said aqueous phase and said centrifugal pump; and invert emulsion delivery conduit means for passing invert emulsion expelled from said outlet means to said spray-forming means.

Claim 11

Apparatus according to claim 11, wherein said feed conduit means for delivering said aqueous phase to said inlet means include pump means.

Claim 12

Apparatus according to claim 11, in which said feed conduit means for delivering said oil phase to said inlet means include pump means.