Device for spraying pressurized material

Abstract

Spraying heads may be used in spray guns for applying a pressurized aerosol material in the form of jets or spray. A spraying nozzle for spraying a polyurethane material includes a cylindrical body provided, on a first end, with a base having a mounting aperture extending into the cylindrical body, forming a cavity for arranging a head of a gun. The base of the nozzle is in the form of oppositely-disposed leaves. A second end of the body is provided with a cylindrical shoulder, a through-bore of which is communicated with a V-shaped and laterally non-closed recess at the region of an outlet of the sprayed material. Oppositely arranged plate-like protrusions adjoin a lateral surfaces of the cylindrical shoulder. A mounting aperture end which adjoins the base has a circumferential cut. The spraying nozzle is provided with an attachment means used when in an inoperative position.

Claims

1. A spraying nozzle of a spray gun for controlled aerosol spraying of a pressurized polyurethane material, comprising a cylindrical body wherein a first end is provided with a base having a mounting aperture extending into the cylindrical body and forming a cavity therein for arranging a head of the spray gun to be attached to a container with an aerosol composition, wherein the base is made in the form of leaves oppositely situated in the same plane and extending beyond the cylindrical body and having a size suitable for resting user's fingers when the head of the spray gun is introduced into the cavity, the second end of the cylindrical body is provided with a cylindrical shoulder having a diameter that is less than a diameter of the cylindrical body, the cylindrical body having a through bore which, at a region where the material being sprayed exits the container, communicates with a through V-shaped and laterally non-closed recess having a width that increases toward an outlet for the outlet for the sprayed material, oppositely arranged plate-like protrusions adjoin a lateral surface of the cylindrical shoulder, a height of said protrusions being greater than a height of the cylindrical shoulder, and cuts extending to the second end of the cylindrical body are made in outer lateral sides of said protrusions, the second end having a wall of sufficient thickness to ensure that a length of the through bore made in the cylindrical shoulder is greater than the height of the cylindrical shoulder, an end of the mounting aperture, which adjoins the base, has a circumferential cut, and the spraying nozzle is further provided with an attachment means used when in inoperative position.

2. The spraying nozzle of claim 1, wherein the attachment means allows attachment of the spraying nozzle temporarily to an aerosol container or the spray gun.

3. A spraying nozzle of a spray gun for controlled aerosol spraying of a pressurized polyurethane material, comprising a cylindrical body wherein a first end is provided with a base having a mounting aperture extending into the cylindrical body and forming a cavity therein for arranging a head of the spray gun to be attached to a container with an aerosol composition, wherein the base is made in the form of leaves oppositely situated in the same plane and extending beyond the cylindrical body and having a size suitable for resting user's fingers when the head of the spray gun is introduced into the cavity, the second end of the cylindrical body is provided with a cylindrical shoulder having a diameter that is less than a diameter of the cylindrical body the cylindrical body having a through bore which, at a region where the material being sprayed exits the container, communicates with a through V-shaped and laterally non-closed recess having a width that increases toward an outlet for the outlet for the sprayed material, oppositely arranged plate-like protrusions adjoin a lateral surface of the cylindrical shoulder, a height of said protrusions being greater than a height of the cylindrical shoulder, and cuts extending to the second end of the cylindrical body are made in outer lateral sides of said protrusions, the second end having a wall of sufficient thickness to ensure that a length of the through bore made in the cylindrical shoulder is greater than the height of the cylindrical shoulder, an end of the mounting aperture, which adjoins the base, has a circumferential cut, and the spraying nozzle is further provided with an attachment means used when in inoperative position, wherein the attachment means is made as a rod having an end portion provided with an arrow-like tip, and a stop made as a crossbar provided opposite to the arrow-like tip and perpendicular to the rod.

4. The spraying nozzle of claim 1, wherein the leaves of the base are provided with an anti-slip finish.

5. The spraying nozzle of claim 3, wherein the leaves of the base are provided with an anti-slip finish.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 shows a top view of the claimed invention;

(2) FIG. 2 shows a view of the first lateral side of the claimed invention;

(3) FIG. 3 shows a view of the second lateral side of the claimed invention;

(4) FIG. 4 shows a cross sectional view along A-A from FIG. 1.

BEST MODE OF CARRYING OUT THE INVENTION

(5) The claimed invention is explained below by a specific exemplary embodiment which, nevertheless, does not preclude other embodiments, but clearly demonstrates that the totality of the essential features can achieve the stated technical effect solving the task of the invention.

(6) The spraying nozzle comprises: a cylindrical body 1; a base 2; a mounting aperture 3; a cavity 4 in the cylindrical body 4; a through bore 5 in a cylindrical shoulder; a V-shaped recess 6; plate-like protrusions 7; oppositely arranged leaves 8 and 9 forming the base; a first end 10 of the body; a second end 11 of the body; a cylindrical shoulder 12; cuts 13 on the plate-like protrusions; an anti-slip finish 14; an attachment means 15; a tip 16 of the attachment means; a stop 17 in a form of a crossbar; a circumferential cut 18 on the mounting aperture.

(7) The claimed spraying nozzle of a spray gun intended for controlled aerosol spraying of a pressurized polyurethane material comprises the cylindrical body 1 provided with the base 2 with the mounting aperture 3 at the first end 10.

(8) The mounting aperture 3 is made so as to extend into the cylindrical body 1 and forms the cavity 4 therein suitable for arranging a head of a gun that is attached to a container (an aerosol container) comprising an aerosol composition.

(9) The base 2 is made in the form of the oppositely arranged leaves 8 and 9 that extend beyond the cylindrical body 1 and have a size suitable for resting user's fingers when the head of the gun is arranged within the cavity 4 of the cylindrical body of the nozzle.

(10) The other end 11 of the body is provided with the cylindrical shoulder 12 which diameter is less than the diameter of the cylindrical body 1, and the through bore 5, as made therein, is in communication, at the region where a sprayed material exits a container, with a through, laterally non-closed V-shaped recess which width is made increasing toward the outlet for the sprayed material; at the other end of the through bore the through bore 5 is in communication with the cavity 4 of the cylindrical body.

(11) The plate-like protrusions 7, which height is greater than the height of the cylindrical shoulder 12, abut against the lateral surfaces of the cylindrical shoulder 12.

(12) The cuts 13 extending to the second end 11 of the cylindrical body 1 are made on the outer lateral sides of the plate-like protrusions 7.

(13) The wall of the second end 11 has a thickness ensuring that the length of the through bore 5 made in the cylindrical shoulder 12 is greater than the height of the cylindrical shoulder 12.

(14) The end portion of the mounting aperture 3, which adjoins the base 2 is provided with the circumferential cut 18.

(15) The leaves 8 and 9 of the base 2 are provided with the anti-slip finish.

(16) The spraying nozzle is provided with a means 15 for attaching it to an aerosol container when in inoperative condition.

(17) The attachment means 15 for attachment to an aerosol container is made so as the spraying nozzle in a plan view has the shape of a staple or similar thereto.

(18) The attachment means 15 is made in the form of a rod an end face of which is provided with an arrow-like tip, and the stop 17 made as a crossbar perpendicular to the rod is located opposite to the tip.

(19) The claimed spraying nozzle of a spray gun can be operated as follows.

(20) A gas-based single-component polyurethane composition in 1 L aerosol containers is used as an aerosol polyurethane composition.

(21) The claimed spraying nozzle is put onto the head of the spray gun, and an aerosol container with a single-component polyurethane composition is screwed onto the spray gun.

(22) A selected surface is treated in the result of user-controlled delivery of a polymer composition from an aerosol container and its orientation in space with the use of a unique configuration of the claimed spraying nozzle of a spray gun used for aerosol spraying of a single-component polyurethane material.

(23) During operation of the claimed nozzle, namely during preparatory manipulations and its operation, the following occurs.

(24) As stated in the Section Summary of the Invention, the spraying nozzle 5 is made as the cylindrical body 1 which first end is provided with the base 2 with the mounting aperture 3. The base 2 is made in the form of the oppositely arranged leaves 8 and 9 extending beyond the cylindrical body and having the anti-slip finish 14, a size of the leaves being selected so as to be suitable for resting user's fingers when the head of a spray gun is introduced into the cavity 4 formed within the cylindrical body 1 of the nozzle. This structural embodiment provides a reliable rest for the user's fingers and allows their comfortable contact with the leave surfaces, thus creating a convenient support enabling to attach the spraying nozzle to the head of the spray gun quickly and easily prior to operation or during it when it is necessary to replace one spraying nozzle with a new one without interrupting the operation process for a long time; and the anti-slip finish ensures additional stability for the user's fingers in cases when the user can sweat during a labor-consuming work of applying an aerosol composition onto a surface.

(25) The base 2 of the spraying nozzle is provided with the mounting aperture 3 extending into the cylindrical body 1 and forming the cavity 4 suitable for arranging the head of a spray gun therein. The dimensions of the cavity 4 are selected so as to ensure reliable and quick attachment and detachment of the head of a spray gun to/from it, the gun is subsequently attached to a container, particularly to a container with a single-component polyurethane composition.

(26) The other end 11 of the cylindrical body 1 is provided with a cylindrical shoulder 12 having a diameter that is less than the diameter of the body 1. A through bore 5 is made in the cylindrical shoulder 12, which is in communication with the cavity 4 made in the cylindrical body 1 and, on its other end, in communication, at the region where a sprayed material exits a container, with a through V-shaped and laterally non-closed recess 6 which width is increased toward the outlet for the sprayed material. Furthermore, the wall of the second end 11 (where the cylindrical shoulder is made) has a thickness which can ensure that a length of the through bore 5 made in the cylindrical shoulder 12 is greater than the height of the cylindrical shoulder 12.

(27) The configuration of the V-shaped and laterally non-closed recess 6 which width is increased toward the outlet for the sprayed material and which is in communication with the through bore 5 made in the cylindrical shoulder 12, in combination with the fact that the wall of the end 11 where the cylindrical shoulder 12 is made has a certain thickness ensuring that the length of the through bore made in the cylindrical shoulder is greater than the latter's height can ensure, together, the best orientation of a prepolymer directed jet in space for applying a sprayed composition onto a surface quickly and uniformly as well as can make it stable for curing, that is, in other words, for separation of excess high-pressure gas, which is required for expelling a polymer. However, high-boiling hydrocarbon foaming agents, which facilitate further polymerization and foaming of a product applied onto a surface, are not removed. Thus, a polyurethane material may be applied onto a treated surface quickly, uniformly and with good quality.

(28) According to the claimed invention, the oppositely arranged plate-like protrusions 7 adjoin the lateral surface of the cylindrical shoulder 12, the height of these protrusions being selected so as to be greater than the height of the cylindrical shoulder 12. The plate-like protrusions 7 protect the V-shaped, laterally non-closed recess 6 from damage when the recess 6 is joined with the head of the spray gun if an operator uses a hard surface as an abutment, and a contact with such surface, in the absence of such protective protrusions, may cause damage to the V-shaped recess which width is made increasing toward the outlet for the sprayed material.

(29) The provision of the mounting aperture end, which abuts against the base 2 having an circumferential cut 18, ensures easier and smother positioning when joining the head of the spray gun and the spraying nozzle, respectively.

(30) The spraying nozzle is provided with the means 15 for attaching it temporarily to an aerosol container or a spray gun, when the nozzle is in its inoperative position; this enables the user to join the nozzle quickly and easily prior to operation or replace it during operation, for example in a case where it is damaged or failed.

(31) The attachment means for attachment to an aerosol container or to a spray gun is made so that the spraying nozzle in a plan view has the shape of a staple, which can create an impression that it is a cheap, conventional, readily accessible and simple in use product.

(32) The claimed invention may be widely applicable in industry, namely, in construction industry, and, in particular, may be successfully used for applying heat insulation onto walls of dwelling complexes, outer facades of garages, apartment walls, balconies in multistoried buildings, large-size reservoirs used for oil storage and foundations of various structures.