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US 11,041,585 B2Granted
Fitting collar and tube-fitting assemblies incorporating fitting collars
AssigneeAvtechtyee Inc.
InventorsJustin Edward Gill, Daniel L. Moore, Glenn B. Newell
Life of this patent
Estimating the term…
Abstract
A collar for having in cross-section a generally triangular filler section and a generally rectangular outer section over the filler section. The collar may be part of a tube assembly where the collar serves to couple a fitting to tube. A method of installing the collar includes pressing the collar over the outer surface of the tubing until the strain on the collar in the hoop direction is at a predetermined level.
Claims28
A tube assembly comprising:
- a fitting having a first end opposite a second end;
- at least a section of the fitting having an annular outer tapered surface reducing in diameter in a direction axially toward the first end;
- a tube having a portion over the annular outer tapered surface, said portion of the tube having an outer surface reducing in diameter in a direction axially toward the first end;
- and
- an annular collar having an inner surface over the portion of the tube outer surface, wherein the collar in cross-section as viewed along a plane extending axially along a diameter of the collar comprises a generally triangular section and an outer section over the generally triangular section, wherein the generally triangular section defines a tapered inner surface of the collar reducing in diameter axially in a direction toward the first end, wherein said collar comprises a fiber reinforced composite material comprising fibers and resin, wherein substantially all fibers forming the generally triangular section are axially oriented, wherein the tapered inner surface of the collar is linear or non-linear, and wherein the outer section comprises fibers oriented generally transverse to the axial direction.
2 more elements
An annular collar for applying a radial compressive force to an outer surface of a tube comprising:
- a first end axially opposite a second end;
- and
- an inner surface, wherein the collar in cross-section as viewed along a plane extending axially along a diameter of the collar comprises a generally triangular section and an outer section over the generally triangular section, wherein the generally triangular section defines a tapered inner surface of the collar reducing in diameter axially in a direction toward the first end, wherein the collar comprises a fiber reinforced composite comprising fibers and resin, wherein substantially all fibers forming the generally triangular section are axially oriented, wherein the tapered inner surface of the collar is linear or non-linear, and wherein the outer section comprises fibers oriented generally transverse to the axial direction.
A tube assembly comprising:
- a fitting having a first end opposite a second end;
- at least a section of the fitting having an annular outer tapered surface reducing in diameter in a direction axially toward the first end;
- a tube having a portion over the annular outer tapered surface, said portion of the tube having an outer surface reducing in diameter in a direction axially toward the first end;
- and
- an annular collar having an inner surface over the portion of the tube outer surface, wherein the collar in cross-section as viewed along a plane extending axially along a diameter of the collar comprises a generally triangular section and an outer section over the generally triangular section, wherein the generally triangular section defines a tapered inner surface of the collar reducing in diameter axially in a direction toward the first end, wherein said collar comprises a fiber reinforced composite material comprising fibers and resin, wherein substantially all fibers forming the generally triangular section are axially oriented, wherein the tapered inner surface of the collar is linear or non-linear, and wherein the collar further comprises a third section radially between the generally triangular and the outer section.
2 more elements
An annular collar for applying a radial compressive force to an outer surface of a tube comprising:
- a first end axially opposite a second end;
- and
- an inner surface, wherein the collar in cross-section as viewed along a plane extending axially along a diameter of the collar comprises a generally triangular section and an outer section over the generally triangular section, wherein the generally triangular section defines a tapered inner surface of the collar reducing in diameter axially in a direction toward the first end, wherein the collar comprises a fiber reinforced composite comprising fibers and resin, wherein substantially all fibers forming the generally triangular section are axially oriented, and wherein the tapered inner surface of the collar is linear or non-linear, and wherein the collar further comprises a third section radially between the generally triangular and the outer sections.
Dependencies are inferred from the claim text.