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US 11,779,006 B2Granted
Spraying assembly, and sprayer equipped with at least one such assembly
AssigneeExel Industries
InventorPatrick Ballu
Life of this patent
Estimating the term…
Abstract
A spraying assembly is provided. The spraying assembly includes at least one nozzle for liquid that is to be sprayed, and at least one active substance injector which is situated directly upstream from the at least one nozzle and to which liquid to be sprayed is supplied by a pump or a pressurized reservoir, with interposition of an obturator on a conduit connecting the pump or the pressurized reservoir to the injector. The spraying assembly also includes an outlet valve for each injector designed to close each outlet orifice. The present invention avoids overdosing or underdosing of the product that is to be sprayed as active substance.
Claims28
A spraying assembly comprising:
- at least one spray nozzle for a liquid to be sprayed;
- at least one active substance injector for injecting an active substance into the liquid, the at least one injector having an outlet orifice;
- a pump or a pressurized reservoir supplying active substance to the at least one injector;
- a conduit connecting the at least one injector to the pump or pressurized reservoir;
- an obturator interposed on the conduit between the least one injector and the pump or pressurized reservoir;
- an outlet valve, located downstream of the injector and directly upstream of the nozzle, for each of the at least one injectors designed to close the outlet orifice of the injector;
- a spraying ramp;
- wherein the at least one nozzle and the at least one injector are mounted on a same body or two adjacent bodies;
- wherein the body or the two adjacent bodies define a chamber which communicates with the at least one nozzle and with the outlet orifice of the at least one active substance injector;
- and
- wherein the body or each body is mounted on the spraying ramp.
8 more elements
A spraying assembly comprising:
- a spray nozzle for spraying an active-substance-containing liquid on an agricultural product;
- one or more active substance injectors for injecting active substances into a liquid to form the active-substance-containing liquid, each injector having an outlet orifice;
- a respective pump or a respective pressurized reservoir connected to, and supplying active substance to, each of the one or more injectors by a respective conduit;
- each conduit having an obturator interposed between said each respective injector and said each pump or pressurized reservoir;
- a respective outlet valve located on an outlet side of each injector, for closing the outlet orifice of said each injector;
- a spraying ramp;
- wherein the nozzle and the one or more injectors are mounted on a same body,
- wherein said same body defines a chamber, the chamber having an outlet connected directly to the nozzle, the chamber having, for each of the one or more injectors, a respective inlet directly connected to the outlet orifice of said each injector, and having a further inlet connected to a source of the liquid, the active-substance-containing liquid being formed in the chamber;
- and
- wherein the body is mounted on the spraying ramp.
7 more elements
A spraying assembly comprising:
- a spraying ramp;
- a body or two adjacent bodies, the body or the two adjacent bodies being mounted on the spraying ramp, the body or the two adjacent bodies defining a chamber;
- at least one spray nozzle for spraying a liquid mounted on the body or one of the two adjacent bodies and communicating with the chamber;
- at least one injector valve for injecting an active substance into the liquid mounted on the body or one of the two adjacent bodies, the at least one injector valve situated directly upstream from the at least one nozzle and communicating with the chamber, wherein the at least on injector valve includes a needle for controlling fluid communication with the chamber;
- a pump or a pressurized reservoir supplying active substance to the at least one injector valve;
- a conduit connecting the at least one injector valve to the pump or pressurized reservoir;
- and
- an obturator interposed on the conduit between the least one injector valve and the pump or pressurized reservoir.
5 more elements
Dependencies are inferred from the claim text.