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US 6,428,052 B1Granted
Fitting for use with corrugated tubing
AssigneeOmega Flex, Inc.
InventorsMark Albino, Edwin E. Pike
Life of this patent
Estimating the term…
Abstract
A preassembled fitting including a body, a nut and a collet positioned within the nut. The nut is threaded on the body a predetermined distanced to allow the installer to snap the corrugated tubing into the nut and engage the collet. The nut is then further tightened to seal the body to the corrugated tubing. A tapered surface on the body engages the cut end of the corrugated tubing and flares the cut end of the corrugated tubing. The fitting will make a metal to metal seal by folding the convolutions of the tubing back against itself creating a double flare.
Claims53
A fitting for use with corrugated tubing, said fitting comprising:
- a body having a body sealing surface;
- a locating sleeve extending beyond said body sealing surface, said locating sleeve being positionable within the corrugated tubing to align the corrugated tubing with the body, said locating sleeve having a locating sleeve surface at an angle relative to the body sealing surface, said angle being other than zero degrees;
- a nut for engaging said body, said nut including an internal cavity;
- and
- a collet positioned within said cavity, said collet including a unitary, collet body having a plurality of slots formed therein extending partially along the longitudinal axis of the collet body, said slots defining a plurality of resilient collet sections connected to said unitary, collet body, said collet having a collet sealing surface;
- wherein said body sealing surface and said collet sealing surface are juxtaposed, said collet sealing surface and said body sealing surface being moved towards each other upon said nut engaging said body to compress the corrugated tubing therebetween.
3 more elements
A fitting connected to corrugated tubing, comprising:
- a body including a body sealing surface;
- a locating sleeve extending beyond said body sealing surface, said locating sleeve aligning the corrugated tubing with the body, said locating sleeve having a locating sleeve surface at an angle relative to the body sealing surface, said angle being other than zero degrees;
- a nut connected to said body, said nut including an internal cavity;
- and
- a collet positioned within said cavity, said collet including a collet sealing surface, said body sealing surface and said collet sealing surface being juxtaposed;
- said collet including a unitary, collet body having a plurality of slots formed therein extending partially along the longitudinal axis of the collet body, said slots defining a plurality of resilient collet sections connected to said unitary, collet body;
- and
- wherein said nut engages said body and said corrugated tubing is flared and compressed between said body sealing surface and said collet sealing surface.
5 more elements
A fitting for use with annular corrugated tubing comprising:
- a body for engaging the corrugated tubing, said body including a body sealing surface;
- a locating sleeve extending beyond said body sealing surface, said locating sleeve for aligning said body with the annular corrugated tubing, said locating sleeve having a locating sleeve surface at an angle relative to the body sealing surface, said angle being other than zero degrees;
- a nut for engaging said body;
- and
- a sealing device for placement in a valley of the annular corrugated tubing, said sealing device including a sealing surface;
- wherein said body sealing surface and said sealing surface are juxtaposed to compress the annular corrugated tubing therebetween.
3 more elements
A fitting connected to corrugated tubing comprising:
- annular corrugated tubing;
- a body engaging said annular corrugated tubing, said body including a body sealing surface;
- a locating sleeve extending beyond said body sealing surface into said tubing for aligning said body with said annular corrugated tubing, said locating sleeve having a locating sleeve surface at an angle relative to the body sealing surface, said angle being other than zero degrees;
- a nut positioned around said annular corrugated tubing for engaging said body;
- a sealing device positioned in a valley of said annular corrugated tubing, said sealing device including a sealing surface;
- and
- flared annular corrugated tubing positioned between said body sealing surface of said body and said sealing surface of said sealing device.
4 more elements
A fitting for use with corrugated tubing, said fitting comprising:
- a body including a body sealing surface;
- a locating sleeve extending beyond said body sealing surface, said locating sleeve being positionable within the corrugated tubing to align the corrugated tubing with the body;
- a nut for engaging said body, said nut including an internal cavity;
- and
- a collet positioned within said cavity, said collet including a unitary, collet body having a plurality of slots formed therein extending partially along the longitudinal axis of the collet body, said slots defining a plurality of resilient collet sections connected to said unitary, collet body, said collet having a collet sealing surface;
- a stop positioned around said body for setting the position of said body relative to said nut prior to installation of the fitting on the corrugated tubing;
- wherein said body sealing surface and said collet sealing surface are juxtaposed to compress the corrugated tubing therebetween.
4 more elements
A fitting connected to corrugated tubing, comprising:
- a body including a body sealing surface;
- a locating sleeve extending beyond said body sealing surface, said locating sleeve being positioned within the corrugated tubing to align the corrugated tubing with the body, said locating sleeve having a locating sleeve surface at an angle relative to the body sealing surface, said angle being other than zero degrees;
- a nut connected to said body, said nut including an internal cavity;
- and
- a collet positioned within said cavity, said collet including a collet sealing surface, said body sealing surface and said collet sealing surface being juxtaposed;
- said collet including a unitary, collet body having a plurality of slots formed therein extending partially along the longitudinal axis of the collet body, said slots defining a plurality of resilient collet sections connected to said unitary, collet body;
- and
- wherein said corrugated tubing is flared and compressed between said body sealing surface and said collet sealing surface.
5 more elements
A fitting for use with corrugated tubing comprising:
- a body for engaging the corrugated tubing, said body including a body sealing surface;
- a locating sleeve extending beyond said body sealing surface, said locating sleeve being positionable into the corrugated tubing for aligning said body with the corrugated tubing;
- a nut for engaging said body;
- and
- a sealing device for placement in a valley of the corrugated tubing, said sealing device including a sealing surface;
- wherein said body sealing surface and said sealing surface are juxtaposed to compress the corrugated tubing therebetween;
- wherein said locating sleeve has a length extending beyond said body sealing surface such that said locating sleeve extends beyond compressed corrugated tubing between said body sealing surface and said sealing surface.
4 more elements
A fitting connected to corrugated tubing comprising:
- corrugated tubing;
- a body engaging said corrugated tubing, said body including a body sealing surface;
- a locating sleeve extending beyond said body sealing surface into said tubing for aligning said body with said corrugated tubing;
- a nut positioned around said corrugated tubing for engaging said body;
- a sealing device positioned in a valley of said corrugated tubing, said sealing device including a sealing surface;
- and
- flared corrugated tubing positioned between said body sealing surface of said body and said sealing surface of said sealing device;
- wherein said locating sleeve has a length extending beyond said body sealing surface such that said locating sleeve extends beyond said flared corrugated tubing between said body sealing surface and said sealing surface.
5 more elements
Dependencies are inferred from the claim text.