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US 2016/0102789 A1Published application
Tube-Fitting-Assembly Ferrule
OwnerPatrick L. Riethinventor
Life of this patent
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Abstract
A tube-fitting-assembly ferrule apparatus and method to secure connections between tubing sections against high pressure, vibration, pulsation, and hammering, by providing a tube-fitting-assembly ferrule which elastically deforms in use, securing the primary circumferential point seal with a shock-absorbing and shape-retaining force.
Claims17
A tube-fitting-assembly ferrule for a tube-fitting assembly having sections of tube, having a circumferential point-seal surface, longitudinal axis, transverse shoulder, threaded socket, and threaded plug-nut, the tube-fitting-assembly ferrule comprising:
- (i) a ferrule body adapted to encircle the longitudinal axis of the tube, having an inner and outer surface in relation to the tube, and having a forward end oriented toward the transverse shoulder and the threaded socket;
- and
- (ii) a ferrule forward face on said forward end of said ferrule body, adapted to contact the transverse shoulder at an angle which promotes a desired deformation of said ferrule body upon compression;
- where pressure applied by the threaded plug nut against a rearward end of said ferrule body compresses said ferrule forward face against the transverse shoulder, producing a deformation constricting said inner surface of said ferrule body against the tube exterior surface, and bulging said outer surface of said ferrule body against the threaded socket interior surface;
- and
- where said deformations of said ferrule body create an additional sealing force against the circumferential point-seal surface between the connected tube sections.
3 more elements
A tube-fitting-assembly method comprising:
- (i) providing a tube-fitting assembly having sections of tube, having a circumferential point-seal surface, longitudinal axis, transverse shoulder, threaded socket, and threaded plug-nut;
- (ii) providing a the tube-fitting-assembly ferrule comprising:
- (a) a ferrule body adapted to encircle the longitudinal axis of the tube, having an inner and outer surface in relation to the tube, and having a forward end oriented toward the transverse shoulder and the threaded socket;
- and
- (b) a ferrule forward face on said forward end of said ferrule body, adapted to contact the transverse shoulder at an angle which promotes a desired deformation of said ferrule body upon compression;
- where pressure applied by the threaded plug nut against a rearward end of said ferrule body compresses said ferrule forward face against the transverse shoulder, producing a deformation constricting said inner surface of said ferrule body against the tube exterior surface, and bulging said outer surface of said ferrule body against the threaded socket interior surface;
- and
- where said deformations of said ferrule body create an additional sealing force against the circumferential point-seal surface between the connected tube sections.
5 more elements
Dependencies are inferred from the claim text.