Dispensing and mixing device for plural fluids
OwnerGeorge Zahaykevichinventor
Life of this patent
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Abstract
A multi-component fluent product, such as an epoxy resin mixture, is controllably mixed and dispensed from an improved mixer-dispenser. The device has a pair of pressure chambers each of which receives one of the fluent components in its original package. Air under pressure is communicated to the two chambers to force the fluent materials from their packages into flow passages which merge and cause mixing of the components. Special valve arrangements are provided along the flow passages to control the mixture proportions and to enable the flow passages to be purged of the mixed components when desired.
Claims21
An apparatus for mixing a plurality of fluent components and for dispensing them in a mixed condition comprising:
- at least two sealable chambers for receiving each of the fluent components;
- a first conduit extending from one of the chambers to a dispensing outlet;
- a second conduit extending from another of the chambers, the second conduit terminating in communication with the first conduit at a location between the ends of the first conduit;
- means for introducing air under pressure to each of the chambers to induce flow of the fluent components through the conduits;
- control valve means disposed along the second conduit for precluding or permitting flow of the fluent component through the second conduit and for simultaneously precluding or permitting communication of air under pressure from a source thereof to the chambers;
- and
- flow valve means at the outlet end of the second conduit and being responsive to operation of the control valve means for opening and closing the outlet end of the second conduit, whereby upon operation of the control valve means to terminate flow in the second conduit and preclude communication of pressurized air to the chambers, the residual pressurized air in at least one of the chambers may cause continued flow of the fluent component in that chamber to thereby purge the first conduit of the mixed fluent components.
Dependencies are inferred from the claim text.