DEVICE FOR SPRAYING AN AEROSOL COMPOSITION AT AN INCLINED ACUTE ANGLE

Abstract

Devices deliver the content of an aerosol, and are used in powder-actuated tools. A spray nozzle includes a cylindrical housing having, at a first end, with a base having a mounting bore that extends inside said housing so as to receive a barrel of a powder-actuated tool. The nozzle is equipped with a securing means. The base includes lobes that lie opposite one another in a single plane. A peripheral section of the second end of the housing is located on the same side as one of these lobes and has a curved projection with a rounded outer surface and an upward taper to form a common top surface with an additional cylindrical projection partially embedded into the inner surface of the curved projection. A V-shaped groove in communication with an axial opening of the second end of the housing extends on a free side of the additional projection.

Claims

1. A spray nozzle of a powder-actuated tool for controlled aerosol spraying of a polyurethane composition at an inclined acute angle, comprising a cylinder-like housing which is provided, at a first end, with a base having a mounting bore that extends inside said cylindrical housing, thus, forming a cavity therein so as to receive a barrel of the powder-actuated tool to be secured to a container containing an aerosol composition, which base is made in the form of lobes that protrude beyond the housing dimensions and lie opposite one another in a single plane and have the dimensions that are sufficient to provide a rest for user's fingers while inserting the barrel of the powder-actuated tool inside the nozzle cavity, a peripheral section of a second end of the housing located on the same side as one of the lobes and having a projection with a curved cross-section an outer surface of which is flushed with an outer surface of the cylinder-like housing and the length of its arc is more than the width of said lobe, wherein the outer surface of the curved projection is rounded and tapers upwards to form a common top surface with an additional cylindrical projection which is concentric to the cylinder-like housing having a diameter less than the diameter of the latter and has a lateral wall partially embedded into an inner surface of said curved projection, wherein on a free side of the additional projection from a top surface edge to an underlying axial section an inclined, acute-angled V-shaped groove is made across the width in communication with an axial opening of the second end of the housing and dividing the additional projection into parts, wherein a free part of these parts is smaller and its top surface adjoins the second end of the cylinder-like housing and is located at an acute or obtuse angle thereto, and the spray nozzle comprises a securing means for securing the nozzle in an out-of-service state.

2. The spray nozzle according to claim 1, characterized in that the securing means is made so that in a plan view the spray nozzle has the form of a clip or close to that form.

3. The spray nozzle according to claim 2, characterized in that the securing means is made in the form of a rod at an end of an extremity of which an arrow-like tip is located opposite to which and perpendicular to the rod is a rest in the form of a crossbar.

Description

[0031] FIG. 1 are general views of the present invention.

[0032] FIG. 2 is a view of a first lateral side of the present invention.

[0033] FIG. 3 is a view of a second lateral side of the present invention.

[0034] FIG. 4 is a top view of the present invention.

[0035] FIG. 5 is a sectional A-A view of FIG. 4.

EMBODIMENTS OF THE INVENTION

[0036] The present invention is described with reference to a specific embodiment which is, however, not the only possible embodiment, and rather illustrates how the combination of features of the technical effect can provide the object of the present invention.

[0037] FIGS. 1-5 show the following elements: [0038] A cylinder-like housing 1 [0039] A base 2 [0040] A mounting bore 3 [0041] A cavity of cylinder-like housing 4 [0042] A first base lobe 5 [0043] A second base lobe 6 [0044] A first end of cylinder-like housing 7 [0045] A second end of cylinder-like housing 8 [0046] A curved projection 9 [0047] An outer surface of curved projection 10 [0048] An outer surface of cylinder-like housing 11 [0049] An arc of curved projection 12 [0050] A common top surface of curved projection and additional cylindrical projection 13 [0051] An additional cylindrical projection 14 [0052] An embedded lateral side of additional cylindrical projection 15 [0053] An inner surface of curved projection 16 [0054] A free side of additional cylindrical projection 17 [0055] An axial section of additional cylindrical projection 18 [0056] An inclined acute-angled V-shaped groove 19 [0057] An axial opening of second end of cylinder-like housing 20 [0058] A bigger part of additional cylindrical projection 21 [0059] A smaller part of additional cylindrical projection 22 [0060] A top surface of smaller part of additional cylindrical projection 23 [0061] A securing means in out-of-service state 24

[0062] A spray nozzle of a powder-actuated tool for controlled aerosol spraying of a polyurethane composition at an inclined acute angle comprises a cylinder-like housing 1 which is provided, at a first end 7, with a base 2 having a mounting bore 3.

[0063] The mounting bore 3 extends inside the cylinder-like housing 1 forming therein a cavity 4 so as to receive a barrel of the powder-actuated tool to be secured to a container (an aerosol bottle) containing an aerosol composition.

[0064] The base 2 is produced in the form of lobes 5 and 6 that protrude beyond the dimensions of the cylinder-like housing 1 and lie opposite one another in a single plane the dimensions of which are sufficient to provide a rest for user's fingers while inserting the barrel of the powder-actuated tool inside the cavity 4 of the cylinder-like housing 1 of the nozzle.

[0065] A peripheral section of a second end 8 of the cylinder-like housing 1 which is located on the same side as the first lobe 5 of the base 2 has a projection 9 with a curved cross-section an outer curved surface 10 of which is flushed with an outer surface 11 of the cylinder-like housing 1. In this way, the curved projection 9 has an outer surface which is common with the outer surface 11 of the cylinder-like housing 1.

[0066] The length of an arc 12 of the curved projection exceeds the width of the first lobe 5 of the base 2.

[0067] The outer surface 10 of the curved projection 9 is rounded and tapers upwards to form a common top surface 13 with an additional cylindrical projection 14 which is concentric to the cylinder-like (cylindrical) housing 1.

[0068] A diameter of the additional cylindrical projection 14 is less than a diameter of the cylinder-like (cylindrical) housing 1. The additional cylindrical projection 14 has a lateral wall that is partially embedded into an inner surface 16 of the curved projection 9.

[0069] On a free side 17 of the additional cylindrical projection 14 from an edge of the common top surface 13 to an underlying axial section 18 across the entire width, an inclined acute-angled V-shaped groove 19 is made. In this way, on an opposite to the embedded wall of the cylindrical projection 14 side 17 from the edge of the common top surface 13 to the underlying axial section 18 of the additional projection 14 across its entire width (with open lateral sections) the inclined acute-angled V-shaped groove 19 is made.

[0070] The inclined acute-angled V-shaped groove 19 is communicating with an axial opening 20 of the second end 8 of the cylinder-like housing 1.

[0071] The inclined acute-angled V-shaped groove 19 divides the additional cylindrical projection 14 into two partsa smaller one and a bigger one. A free part of these two parts is a smaller part 22, and a part which is partially embedded into the inner surface 16 of the curved projection 9 is a bigger part 21.

[0072] The top surface 23 of the smaller part 22 of the additional cylindrical projection 14 adjoins (abuts) the second end 8 of the cylinder-like housing 1 and extends under an acute or obtuse angle thereto.

[0073] The lobes 5 and 6 of the base 2 which lie opposite one another in a single plane are provided with an antislip surface.

[0074] The spray nozzle is provided with a securing means 24 in an out-of-service state.

[0075] The securing means 24 has the form of a rod at an end of an extremity of which an arrow-like tip is located opposite to which and perpendicular to the rod is a rest in the form of a crossbar.

[0076] The inventive spray nozzle of the powder-actuated tool operates as follows.

[0077] The aerosol polyurethane composition is a single-component gas-based polyurethane composition contained in one-liter aerosol bottles.

[0078] The inventive spray nozzle is mounted on the barrel of the powder-actuated tool and the aerosol bottle containing the single-component polyurethane composition is screwed on the powder-actuated tool.

[0079] The inclined (angular) spraying of a selected surface is achieved in the result of the user-controlled discharge of the polymer composition from the aerosol bottle and an inclined (angular) orientation thereof by means of the unique configuration of the inventive spray nozzle of the powder-actuated tool for the controlled aerosol spraying of the single-component polyurethane medium at an inclined acute angle.

[0080] When the inventive nozzle is operated, namely, during preliminary handling and direct operation of the nozzle, the following can occur.

[0081] As was mentioned in the Disclosure of the invention section, the spray nozzle is made as the cylinder-like (cylindrical) housing 1 which is provided, at the first end 7, with the base 2 having the mounting bore 3. Wherein, the base 2 is produced in the form of lobes 5 and 6 provided with the antislip surface which protrude beyond the dimensions of the cylinder-like housing 1 and lie opposite one another in a single plane the dimensions of which are sufficient to provide a rest for user's fingers while inserting the barrel of the powder-actuated tool inside the cavity 4 of the cylinder-like housing 1 of the nozzle. This configuration provides a reliable rest for user's fingers allowing the fingers to fit completely and with comfort to the lobe 5 and 6 surfaces, thus, providing a comfortable rest contributing to a fast and easy mating of the spray nozzle and the barrel of the powder-actuated tool prior to the works with or during the use of the nozzle by replacing one spray head with another without interrupting the operation process for a long time, and the antislip surface provides an additional stability for user's fingers, for instance, when the user can suffer some sweating during the laborious application of the aerosol polyurethane composition onto any surface.

[0082] The base 2 of the spray nozzle comprises a mounting bore 3 that extends inside the cylinder-like housing 1 forming therein a cavity 4 for receiving the barrel of the powder-actuated tool. The dimensions of such cavity 4 are selected so that to provide fast and reliable mating therewith and demating therefrom the barrel of the powder-actuated tool that further will be mounted on a container, in particular, on the aerosol bottle containing the single-component polyurethane composition.

[0083] The second end 2 of the cylinder-like (cylindrical) housing 1 is provided with an additional cylindrical projection 14 which is concentric to the cylinder-like housing 1 having a diameter less than the diameter of the cylinder-like housing 1. The additional cylindrical projection 14 has a lateral wall that is partially embedded into an inner surface 16 of the curved projection 9. On a free side 17 of this projection 14 from the edge of a top surface 13 shared with the curved projection 9 to an underlying axial section 18 an inclined, acute-angled V-shaped groove 19 is made across the width which is in communication with an axial opening 20 of the second end 8 of the cylinder-like housing 1. The important advantage of the present invention is in that the V-shaped groove 19 divides the additional cylindrical projection 14 into two partsa bigger part 21 a lateral wall of which is embedded into the inner surface 16 of the curved projection 12 and a smaller part 22 which is free and is opposite to the bigger part 21. The top surface of the smaller part 22 adjoins (abuts) the second end 8 of the cylinder-like housing 1 and is located at an oblique angle to the end 8 of the cylinder-like housing 1. During the operation of the inventive nozzle, the inclined acute-angled V-shaped groove 19 extending across the width and serving as a composition outlet which divides the additional cylindrical projection 14 into two parts 21 and 22, one of which is the smaller part 22 and its top surface 23 adjoins (abuts) the second end 8 of the cylinder-like housing 1 and is under acute or obtuse angle thereto provides the best inclined (angular) orientation of a polymer jet for uniform and fast inclined (angular) application of the spray composition onto a surface, in addition, the spray composition is stable for ripening, i.e., there is an improvement of the high-pressure gas surplus separation during the polymer release which is required during the extrusion. This takes place without discharging high-boiling hydrocarbon blowing agents that aid further polymerization and blowing of a product applied onto the surface. Therefore, the surface being treated is coated with a polyurethane medium in a faster, more uniform and qualitative inclined (angular) way.

[0084] In the inventive nozzle, the peripheral section of the second end 8 of the cylinder-like housing 1 is located on the same side as the lobe 5 and has a projection 9 with a curved cross-section the outer curved surface 10 of which is flushed with the outer surface 11 of the cylinder-like housing 1, and length of its arc 12 exceeds the width of the lobe 5 or 6 of the base 2, wherein the outer surface 10 of the curved projection 9 is rounded and tapers upwards to form the common top surface 13 with the additional cylindrical projection 14. Such configuration is due to the fact that during the usage the curved projection 9 the top surface of which is common 13 for the top surface of the additional cylindrical projection 14 protects the inclined V-shaped groove 19 from damages which can occur while mating the V-shaped groove with the barrel of the powder-actuated tool using as a rest any rigid surface, upon contact with which the inclined V-shaped groove 19 can be damaged unless there are protective means. In addition, the inventive configuration and structural tandem of the curved projection 9 and the additional cylindrical projection 14 provides during the usage the additional rigidity and strength, thus, improving the operative reliability and quality, as well as the lifetime of the nozzle.

[0085] The important feature of the inventive nozzle is in that it comprises a temporary securing means 24 for temporary securing the spray nozzle to the aerosol container or to the powder-actuated tool in the out-of-service state, thus, allowing a user quickly and easily mate the nozzle prior to its usage or its complete replacement during the usage, for instance, in a case of nozzle possible damage or complete failure.

[0086] The present invention is widely used in the industry, in particular, in construction field, and, in particular, can be actively used for heat-insulating walls of residential facilities, outer wall facades of car garages, apartment walls, balconies of apartments in high-rise buildings, large-sized oil storage tanks, as well as walls of foundations of various buildings.