Fitting component, ferrule and nut
AssigneeMecanique Analytique Inc.
InventorYves Gamache
Life of this patent
Estimating the term…
Abstract
A fitting component for receiving a tube is provided. The tube has a tube end inserted through a ferrule, the portion of the tube end extending beyond the ferrule being called a pilot. The fitting component comprises a body including a cavity for receiving the tube end and the ferrule. The cavity is defined by an inner lateral wall and opens on an extremity of the body. The cavity includes a pilot receiving section and a channel connecting the cavity to another portion of the body. A radial annular flange is located at the interface of the pilot receiving section with the channel. The flange has an annular sealing lip protruding towards the cavity. The sealing lip is for forming a seal with a radial surface of the pilot, advantageously reducing dead volumes within the fitting component when in use.
Claims19
A fitting component for receiving a tube, said tube having an inner diameter, an outer diameter and a tube end inserted through a ferrule, a portion of the tube end extending beyond the ferrule being referred to as a pilot, said fitting component comprising:
- a body having first and second extremities, the body including:
- a cavity for receiving the tube end and the ferrule, the cavity being defined by an inner lateral wall and opening on the first extremity of the body, the cavity including a pilot receiving section for receiving the pilot;
- and
- a channel connecting the cavity to an other portion of the body, the channel having a cross-section smaller than a cross-section of the pilot receiving section;
- a radial annular flange located at an interface of the pilot receiving section with the channel, said flange having an annular sealing lip protruding towards the cavity, the sealing lip being for forming a seal with a radial surface of the pilot, wherein the annular sealing lip is coated with an inert substance softer than the fitting component.
A fitting component kit for joining first and second tubes, said tubes having respective outer diameter and tube ends, said fitting component kit comprising:
- a fitting component;
- first and second ferrules;
- first and second threaded nuts;
- said first and second ferrules and said first and second threaded nuts being for insertion around the tube ends of the first and second tubes, respectively,
- the first and second ferrules being located frontward of the first and second threaded nuts, respectively,
- portions of the tube ends extending beyond the ferrules being referred to as pilots,
- said fitting component comprising:
- a body having first and second extremities;
- a bore extending from the first extremity to the second extremity, the bore including:
- first and second cavities respectively opening of the first and second extremities of the body and a channel connecting the first and the second cavities,
- the first and second cavities for respectively receiving the first and the second tubes, each of said cavities comprising:
- a pilot receiving section;
- a tapered ferrule receiving section located next to the pilot receiving section;
- and
- a threaded nut receiving section opening on a given one of the extremities;
- a radial annular flange located at an interface of the pilot receiving section with the channel, said flange having an annular sealing lip protruding towards a corresponding one of the cavities, the sealing lip being for forming a seal with a radial surface of a corresponding one of the pilots;
- each of said ferrules having an outer surface coated with an inert substance softer than the fitting component;
- each of said threaded nuts having a front surface and threads coated with a lubricant, wherein for each of the cavities, the annular sealing lip is coated with an inert substance softer than the fitting component.
Dependencies are inferred from the claim text.