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US 2022/0099228 A1Published application
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 method for coupling a fitting to a tubing end includes pressing a collar over the outer surface of the tubing until the strain on the collar in the hoop direction is at a predetermined level, or pressing a collar with a predetermined axial load.
Claims18
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 along an axial direction toward one of said first and second ends;
- a tube having a portion over the annular outer tapered surface;
- and
- an annular collar having an inner surface over an outer surface of the portion of the tube outer, wherein the collar in cross-section as viewed along a plane extending axially along a diameter of the collar comprises a first section and a second section radially adjacent to, and surrounding, the first section, wherein said collar comprises a fiber reinforced composite material comprising fibers and resin, wherein substantially all fibers forming one of the first and second sections are axially oriented, and wherein the other of the first and second sections 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 first section and a second section radially adjacent to, and surrounding, the first section, wherein the collar comprises a fiber reinforced composite comprising fibers and resin, wherein substantially all fibers forming one of the first and second sections are axially oriented along an axial direction, and wherein the other of the first and second sections comprises fibers oriented generally transverse to the axial direction.
Dependencies are inferred from the claim text.