The present disclosure generally relates to a composition and method for aiding in sweating a piping joint. More particularly, the present disclosure relates to a semi solid, water soluble composition and the process of inserting the composition into an interior of a pipe to isolate moisture from a joint being sweated, then removing the composition via fluid pressure and dissolution.
Pipe sweating is a trade term for soldering pipes together. This type of pipe sweating is performed with a propane torch. The copper pipes to be joined are heated at the juncture point, and then solder—a metal compound that is heated and used like glue between the two pipes—is applied. Pipe sweating can be a tricky venture for beginners, and it often takes a little while for a novice to get the feel of it.
Pipes cannot be soldered if water is in them. Water prevents the pipes from reaching a hot enough temperature to melt solder. One known means of ensuring water is isolated from the working area is to insert a piece of bread (without its crust) into the pipe holding back a gradual flow of water. The bread will dissolve when the water is turned back on. The problem with this is that the bread can become moldy, the bread takes an inconsistent amount of time to degrade, and the bread could cause temporary clogging.
Another known embodiment utilises a mechanical seal that is inserted into the plumbing to isolate any moisture from the area being brazed or soldered. This requires access to the device both before and after the sweating process. Since the device needs to be removed from the plumbing, the process requires at least one joint that is formed without using an isolation device.
Therefore, a water isolation composition that can be inserted into a piping configuration and dissolves when subjected to a water pressure/flow for use during a sweating process, is needed.
Several ingredients are known.
Ultrez 21 is a polymer that is a hydrophobically modified cross-linked acrylate copolymer and is designed to efficiently impart thickening, stabilising, and suspending properties designed for use in a variety of personal care applications. The polymer incorporates patented technology, which allows it to quickly and easily self-wet. Ultrez 21 is a trade name, generically referred to via its chemical reference of Acrylates/C10-30 Alkyl Acrylate Crosspolymer.
Triethanolamine, often abbreviated as TEA, is an organic chemical compound, which is both a tertiary amine and a tri-alcohol. A tri-alcohol is a molecule with three hydroxyl groups. Like other amines, Triethanolamine acts as a weak base due to the lone pair of electrons on the nitrogen atom.
Triethanolamine is commonly used as a pH balancer in cosmetic preparations in a variety of different products—ranging from skin lotion, eye gels, moisturizers, shampoos, shaving foams etc. Another common use of TEA is as a complexing agent for aluminium ions in aqueous solutions. This reaction is often used to mask such ions before performing what is called a complexometric titration with another chelating agent such as EDTA, which will form stable complexes with most metallic ions.
The present disclosure is generally directed to a water soluble composition for insertion into a piping configuration during a sweating process. The composition is inserted into a pipe creating a barrier for any water flow or moisture, thus allowing a plumber to adequately form a piping joint using a soldering or brazing process. The composition decomposes when subjected to an increased water pressure and subsequent flow.
In some embodiments, the temporary pipe damming composition may include:
In another aspect, the volume of water is preferably 85.1% of the total, having a range of +/−5%. It is desired that the water is de-ionized.
In still another aspect, the volume of shredded paper is preferably 8.8% of the total, having a range of +10%/−4%. It is desired that the shredded paper is siliconized shredded paper (fine grit).
In yet another aspect, the volume of Triethanolamine is preferably 3.0% of the total, having a range of +3%/−1%.
In a still further aspect, the volume of a Carbomer such as Acrylates/C10-30 Alkyl Acrylate Crosspolymer (Ultrez 21) is preferably 3.0% of the total, having a range of +3%/−1%.
In another aspect, the volume of a preservative (such as Neolone 950) is preferably 0.1% of the total, having a range of +0.3%/−0.1%.
In yet another aspect, a volume of a coloring agent (preferably FDA approved) can be added.
Continuing with another aspect, the composition is mixed in accordance with the following steps:
In a still further aspect, the composition is formed and inserted into a pipe. The plumber then forms the joint using common sweating practices. The water is turned on, increasing the water pressure in the piping. The water pressure separates the composition from the piping as well as dissolving the composition.
The invention will now be described, by way of example, with reference to the accompanying drawings, where like numerals denote like elements and in which:
Like reference numerals refer to like parts throughout the various views of the drawings.
The following detailed description is merely exemplary in nature and is not intended to limit the described embodiments or the application and uses of the described embodiments. As used herein, the word “exemplary” or “illustrative” means “serving as an example, instance, or illustration.” Any implementation described herein as “exemplary” or “illustrative” is not necessarily to be construed as preferred or advantageous over other implementations. All of the implementations described below are exemplary implementations provided to enable persons skilled in the art to make or use the embodiments of the disclosure and are not intended to limit the scope of the disclosure, which is defined by the claims. For purposes of description herein, the terms “upper”, “lower”, “left”, “rear”, “right”, “front”, “vertical”, “horizontal”, and derivatives thereof shall relate to the invention as oriented in
A temporary pipe damming composition 100 is formed adhering to a recipe presented in
The volumes of the various ingredients are presented in the table below:
An exemplary method of use of the temporary pipe damming composition 100 is presented in a sweating process flow diagram 200 of
An advantage of the present invention is the ability to assemble a closed piping configuration, as the temporary pipe damming composition 100 is dissolved by the flow of water. The temporary pipe damming composition 100 dissolves in a predictable manner. The temporary pipe damming composition 100 maintains a long shelf life.
Since many modifications, variations, and changes in detail can be made to the described preferred embodiments of the invention, it is intended that all matters in the foregoing description and shown in the accompanying drawings be interpreted as illustrative and not in a limiting sense. Thus, the scope of the invention should be determined by the appended claims and their legal equivalence.
Number | Name | Date | Kind |
---|---|---|---|
4357960 | Han | Nov 1982 | A |
4739799 | Carney et al. | Apr 1988 | A |
5043196 | Lacourse et al. | Aug 1991 | A |
5318075 | Roll | Jun 1994 | A |
6712097 | Schabel | Mar 2004 | B1 |