Applicator

Abstract

Provided is an applicator for applying a solvent cement, the applicator having a deformable container for containing the solvent cement, a nozzle, a valve located between the container, and the nozzle. The valve is changeable between an open condition where the solvent cement can move from the container to the nozzle and a closed condition where solvent cement is inhibited from moving from the container to the nozzle, and a disperser attached to the nozzle. The disperser is adapted to disperse solvent cement that flows from the nozzle.

Claims

1. An applicator for applying a solvent cement, the applicator comprising: a deformable container for containing the solvent cement; a nozzle; a valve located between the container and the nozzle, the valve changeable between an open condition where the solvent cement can move from the container to the nozzle and a closed condition where solvent cement is inhibited from moving from the container to the nozzle; and a disperser attached to the nozzle, the disperser adapted to disperse solvent cement that flows from the nozzle.

2. The applicator as claimed in claim 1, wherein the valve is a pressure activated valve.

3. The applicator as claimed in claim 1, wherein the valve enables fluid to pass therethrough when a predefined pressure differential is reached between a first side and a second side of the valve.

4. The applicator as claimed in claim 1, wherein when the pressure of the solvent cement in the container reaches a predefined amount, the valve opens to enable the solvent cement to flow from the container.

5. The applicator as claimed in claim 4, wherein in use a user squeezes the container to increase the pressure of the solvent cement.

6. The applicator as claimed in claim 1, wherein the valve is a silicone slit valve.

7. The applicator as claimed in claim 1, wherein in use when a user squeezes the container, the pressure of the solvent cement in the container increases, and when the pressure reaches a predefined amount, the valve opens to enable the solvent cement to flow from the container to the nozzle.

8. The applicator as claimed in claim 1, wherein the nozzle has a plurality of openings, enabling the solvent cement, in use, to flow through the plurality of openings to the disperser.

9. The applicator as claimed in claim 1, wherein the nozzle can be attached and detached from the container.

10. The applicator as claimed in claim 9, wherein the nozzle can be attached and detached from the container via a threaded connection.

11. The applicator as claimed in claim 1, wherein the nozzle includes a threaded portion adapted to engage with a threaded portion of the disperser.

12. The applicator as claimed in claim 1, wherein the disperser is made of or includes a foam material.

13. The applicator as claimed in claim 1, wherein the container is adapted to return to its original condition after it has been squeezed or deformed by a user.

14. The applicator as claimed in claim 1, wherein the container is made of a plastic material.

15. A solvent cement applicator comprising: a deformable container for containing the solvent cement; a nozzle; a disperser adjacent to the nozzle; and a valve located between the container and the disperser, the valve changeable between an open condition where the solvent cement can move from the container to the disperser and a closed condition where solvent cement is inhibited from moving from the container to the disperser; and wherein in use a user squeezes the container to increase the pressure of the solvent cement in the container, and when the pressure reaches a predefined amount, the valve opens to enable the solvent cement to flow from the container to the disperser.

16. The solvent cement applicator as claimed in claim 15, wherein the valve is located at least partially within the nozzle.

17. A solvent cement applicator system comprising: an applicator, the applicator comprising: a deformable container for containing the solvent cement; a nozzle in fluid communication with the container; a valve located between the container and the nozzle; and a disperser attached to the nozzle; and an applicator pouch into which the applicator can be placed to store the applicator when not in use.

18. The solvent cement applicator system as claimed in claim 17, wherein the applicator pouch is made of silicone and includes a belt loop on a side thereof to enable the applicator pouch to be attached to a belt or the like.

19. The solvent cement applicator system as claimed in claim 17, wherein the applicator pouch provides a substantially airtight seal between the container and the applicator pouch when the applicator is located in the applicator pouch.

20. A method of using an applicator as claimed in claim 1, to apply solvent cement to a work piece, comprising the steps of: introducing solvent cement into the container; squeezing the container to increase the pressure of the solvent cement and change the valve to the open condition; and applying solvent cement from the disperser to the work piece.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order that the present invention can be more readily understood reference will now be made to the accompanying drawings which illustrate a preferred embodiment of the invention and wherein:

[0043] FIG. 1 is a schematic exploded view of an applicator according to an embodiment of the present invention;

[0044] FIG. 2 is a schematic view of a nozzle according to a second embodiment of the invention;

[0045] FIG. 3 is a schematic side view of a disperser according to a third embodiment of the invention; and

[0046] FIG. 4 is a schematic view of a solvent cement applicator system according to an embodiment of the present invention.

DESCRIPTION OF THE INVENTION

[0047] With reference to FIG. 1 there is shown an applicator 10 according to an embodiment of the present invention, in an exploded view. The applicator 10 includes a container in the form of a plastic bottle 12. The plastic bottle 12 has an opening 14 which has a threaded portion 16.

[0048] The threaded portion 16 of the opening 14 is adapted to engage with a threaded portion 18 of a nozzle 20. The nozzle 20 has an opening 22. The nozzle 20 is made of the same material as the plastic bottle 12.

[0049] A valve in the form of a silicone slit valve 24 is located between the opening 14 and a portion of the nozzle 20. The silicone slit valve 24 has two slits 26 in the form of a +. When the silicone slit valve 24 is subject to a predetermined pressure, the silicone slit valve 24 changes from a closed condition (shown) to an open condition (not shown). In the open condition (not shown) the silicone slit valve 24 enables solvent cement to flow from the container to the nozzle 20.

[0050] The applicator 10 includes a disperser in the form of a plastic foam disperser 26. The plastic foam disperser 28 fits over the nozzle 20. An outside surface 30 of the plastic foam disperser 28 is in fluid communication with the opening 22 of the nozzle 20, such that solvent cement can flow from the opening 22 of the nozzle 20 through the plastic foam disperser 28, to the outside surface 30 of the plastic foam disperser 28.

[0051] With reference to FIG. 2 there is shown a nozzle 40 according to a second embodiment of the present invention. The nozzle 40 is similar to the nozzle 20 of FIG. 1, except that the nozzle 40 has a plurality of openings 42. The plurality of openings 42 enable solvent cement to flow evenly from the nozzle 40 to a disperser (not shown) similar to disperser 28 in FIG. 1.

[0052] With reference to FIG. 3 there is shown a disperser 50 according to a third embodiment of the present invention. The disperser 50 has an opening 52 which is adapted to attach to a nozzle (not shown) similar to the nozzle 20 in FIG. 1. The disperser 50 has a hollow rigid portion 54, and a plastic foam portion 56. An outer surface 58 of the plastic foam portion 56 is in fluid communication with the opening 52, such that solvent cement which flows into the disperser 50 via the opening 52 can flow through the hollow portion 54, through the plastic foam portion 56 to the outer surface 58.

[0053] With reference to FIG. 4, there is shown a schematic view of a solvent cement applicator system 60 according to an embodiment of the present invention. The solvent cement applicator system 60 includes an applicator 62. The applicator 62 is similar to the applicator 10 in FIG. 1. The solvent cement applicator system 60 includes an applicator pouch 64 into which the applicator 62 can be placed to store the applicator 62 when not in use.

[0054] The applicator pouch 64 has a belt loop 66 so that the applicator pouch 64 can be worn on a user's belt (not shown). The applicator pouch 64 is made of silicone and provides a substantially airtight seal between the applicator pouch 64 and the applicator 62.

[0055] In use, with reference to FIG. 1, solvent cement is introduced into the plastic bottle 12 via the opening 14. The silicone slit valve 24 is located between the opening 14 and a portion of the nozzle 20 prior to the nozzle being attached to the plastic bottle via threaded portions 16 and 18. The disperser 28 is located on the nozzle 20.

[0056] To apply solvent cement from the disperser 28 to a work piece (not shown), the applicator 10 is typically held in a downward orientation with the disperser 28 facing downward. The plastic bottle 12 is squeezed by the user to increase the pressure in the plastic bottle 12. The increase of pressure causes the silicone slit valve 24 to change to the open condition so that the solvent cement can flow from the plastic bottle 12 through the nozzle 20 and through the disperser 28 to the external surface 30 of the disperser 28.

Advantages

[0057] An advantage of the preferred embodiment of the applicator includes a consistent supply of solvent cement. Another advantage of the preferred embodiment of the applicator includes the ability to prevent excess solvent cement exiting the applicator. A further advantage of an embodiment of the applicator includes a quick refill of solvent cement into the container. Another advantage of the preferred embodiment of the applicator includes the ability to replace the disperser. An advantage of the preferred embodiment of the applicator system includes the pouch providing convenient access to the applicator and inhibiting drying out of the cement solvent on or in the disperser when the applicator is located in the pouch. A further advantage of an embodiment of the applicator with a valve located at least partially within the nozzle includes the ability to replace the disperser, nozzle and valve.

Variations

[0058] While the foregoing has been given by way of illustrative example of this invention, all such and other modifications and variations thereto as would be apparent to persons skilled in the art are deemed to fall within the broad scope and ambit of this invention as is herein set forth.

[0059] Throughout the description and claims of this specification the word “comprise” and variations of that word such as “comprises” and “comprising”, are not intended to exclude other additives, components, integers or steps.