NEW MICRO SPRAY BACKPACK WITH INDEPENDENT MIXTURE SYSTEM THROUGH REMOVABLE CARTRIDGE

• US 20180236472A1
• Filed: 08/08/2016
• Published: 08/23/2018
• Est. Priority Date: 08/10/2015
• Status: Abandoned Application

• Current Assignee: Pedro Antonio Mendoza
• Original Assignee: Pedro Antonio Mendoza
• Inventors: VILLAR CLOQUELL, Francisco Javier, SALVADOR BAREA, Francisco, ANTONIO MENDOZA, Pedro
• Application Number:
  US15/751,602
• Publication Number:
  US 20180236472A1
• Time in Patent Office: Days
• CPC Class Codes: A01C 23/047 Spraying of liquid fertilisers
• CPC Class Codes: A01M 7/0046 Hand-operated sprayers apparatus to be carried on or by a person B05B9/08
• CPC Class Codes: B05B 7/2443 the carried liquid and the main stream of carrying liquid being brought together downstream of the container before discharge B05B7/2454 takes precedence
• CPC Class Codes: B05B 7/2472 comprising several containers
• CPC Class Codes: B05B 7/26 Apparatus in which liquids or other fluent materials from different sources are brought together before entering the discharge device B05B7/2402 takes precedence
• CPC Class Codes: B05B 9/0811 comprising air supplying means actuated by the operator to pressurise or compress the container
• CPC Class Codes: B05B 9/0833 comprising a compressed gas container, e.g. a nitrogen cartridge
• CPC Class Codes: B05B 9/0838 supply being effected by follower in container, e.g. membrane or floating piston, or by deformation of container
• CPC Class Codes: B05B 9/0877 the pump being of pressure-accumulation type or being connected to a pressure accumulation chamber

Abstract

A system for micro spray backpacks is a reusable device which has at least one cartridge that contains at least one agrochemical element or another type of concentrate which is to be dispensed separately from the dilution, performing this task at the very moment at which its application is required. The device contemplates the adjustment in the concentration of the mix, as well as the change of the cartridges without spilling the solvent contained in the tank of the backpack. The cartridge prevents oxidation of the concentrate which is to be applied due to its being isolated, reducing economic and environmental costs. The device is designed for use in agricultural and industrial sectors.

Claims

1-6. -6. (canceled)

7. A micro spray backpack of those used in the industrial and agricultural sectors for spraying using pressurisation systems, both manual and assisted by an electromechanical pump comprising:

means to perform an adjustable mix of the solvent contained in a tank of the backpack with at least one substance of a treatment to be applied, performing this solution or mixture at the time of application and without the treatment substances coming into contact with a content of the backpack tank until that time, the means include at least one airtight cartridge preferably cylindrical which contains the substances to be diluted and dispensed which has a conventional connection means with at lease one cartridge receiving unit;

the top cover of the cartridge forms a plunger which slides inside a side revolution surface of the same and has means to guarantee its airtightness through the use of conventional O-rings or tight fit, wherein the cartridge is emptied towards the cartridge receiving unit housed in the backpack which spills the content of these substances into a common collector that has an entry through which the pressurised fluid penetrates from the tank and the outflow of which spills directly towards the spray lance, wherein the cartridge receiving unit has at least one conventional opening or adjusting valve that allows for the person using the backpack to adjust the mixture; and

the common collector has a mixer to facilitate the integration of the mix.

8. The micro spray backpack according to claim 7, wherein the cartridge housing includes convention means for compressing the plunger of the cartridge, such as the incorporation of a spring that exerts direct pressure on the plunger of the cartridge.

9. The micro spray backpack according to claim 7, wherein the cartridges have the means to allow the deformation and volume reduction of the same when it is being emptied, due to the cartridge being made of an elastomer material preferably of low thickness.

10. The micro spray backpack according to claim 7, wherein the cartridges have an elastic membrane capable of dilating due to the pressure and recovering its initial shape upon opening the cartridge valve.

8-1. The micro spray backpack according to claim 7, wherein the cartridge connection means being made up by a membrane made using an elastomer material, the elasticity of which allows to close and seal this temporary opening caused by at least one connection needle which communicates with a cartridge receiving unit.

8-2. The micro spray backpack according to claim 7, wherein the cartridge connection means being made up by a set of male and female conventional quick connectors, positioned indistinctly between the cartridge pair and the cartridge receiving unit.