Fluid conduit system and fittings therefor

a conduit system and flue pipe technology, applied in the direction of pipe joints, non-disconnectible pipe joints, manufacturing tools, etc., can solve the problems of increasing the difficulty of making sweat solder connections, affecting the performance of the system, and affecting the service life of the system,

Inactive Publication Date: 2008-02-28
JAMISON TOMMY L +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0009] In one form, the present invention provides a fluid conduit system having a fluid conduit, a crimp and a fitting. The crimp is formed on the fluid conduit and has an inside dimension that is smaller than the inner diameter of the fluid conduit. The fitting has a structural portion an...

Problems solved by technology

Modern changes to various plumbing codes, which mandate lead-free solders and water soluble fluxes, have, however, greatly increased the difficulty in making sweat solder connections as these lead-free solders and water soluble fluxes tend to be less tolerant of certain variables (e.g., the presence of oxidation or the use of excessive heat) than the lead-based solders and acid-based fluxes that had been previously used.
Furthermore, the sweat soldering task is relatively time consuming as compared to the crimp-type connections that are employed in a PEX (i.e., cross-linked polyethylene) system.
This system, however, is known to suffer from several drawbacks.
One such drawback concerns the sealing of the fitting to the outside surface of the copper tubing.
It is well known in the art that the outside surface of a copper tube is relatively susceptible to imperfections during its formation via extrusion,...

Method used

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  • Fluid conduit system and fittings therefor
  • Fluid conduit system and fittings therefor
  • Fluid conduit system and fittings therefor

Examples

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Embodiment Construction

[0037] With reference to FIG. 1 of the drawings, an exemplary fluid conduit system constructed in accordance with the teachings of the present disclosure is generally indicated by reference numeral 10. The fluid conduit system 10 is illustrated to include a plurality of tubes 12 and a plurality of fittings 14 that are employed to join the tubes 12 to one another. In the example provided, the fluid conduit system 10 is employed to route and deliver potable water and as such, the tubes 12 may be constructed of copper and include conventional commercially available hard drawn tubing sticks 12a and conventional soft tubing 12b (also referred to herein as “annealed”, or “flexible metal” tubing) of the type that is commercially available in a coiled form from sources such as Mueller Industries, Inc. of Memphis, Tenn. Those skilled in the art will appreciate, however, that the tubes 12 may be made out of any suitable metal or plastic material and that the teachings of the present disclosur...

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PUM

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Abstract

A fluid conduit system that employs fittings having ends with a structural portion and a seal portion. The ends of the fittings are inserted into a tube, which may be a hard, i.e., rigid, or soft, i.e., flexible, tube. The seal portion sealingly engages the inner diameter of the tube upon its insertion into the tube. The tube is deformed to prevent the fitting from being withdrawn from the tube; the portion of the tube in the immediate vicinity of each seal that forms the seal portion is not deformed. A method for forming a fluid conduit system is also provided.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS [0001] This application is a division of U.S. application Ser. No. 10 / 739,983 filed Dec. 18, 2003, which claims the benefit of U.S. Provisional Application Ser. No. 60 / 470,599 filed May 15, 2003.FIELD OF THE INVENTION [0002] The present invention generally relates to fluid conduit systems that may be employed, for example, for routing and delivering potable water, gases or chemicals. BACKGROUND OF THE INVENTION [0003] Sweat soldering has long been used for the supply and distribution of potable water, especially in single family residential constructions, due to its durability and the relative ease with which solder connections were made. Modern changes to various plumbing codes, which mandate lead-free solders and water soluble fluxes, have, however, greatly increased the difficulty in making sweat solder connections as these lead-free solders and water soluble fluxes tend to be less tolerant of certain variables (e.g., the presence of oxidat...

Claims

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Application Information

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IPC IPC(8): F16L19/08B25B27/10F16L13/14
CPCB25B27/10F16L13/143F16L13/141
Inventor JAMISON, TOMMY L.DENNIS, H. GLENNGAY, KEVIN
Owner JAMISON TOMMY L
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