IP Library Granted Patent US 8,967,206
Granted Patent B2
US 8,967,206 · App. 12/928,908 · Granted Mar 3, 2015

Flexible fluid conduit

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Quick Facts
Patent No.
US 8,967,206
App. No.
12/928,908
Granted
Mar 3, 2015
Kind
B2
Abstract

A process for producing a fluid conduit by forming a fluid delivery channel along the outer surface of a first elongate tubular body member. A second elongate tubular body having an inner circumference is fitted about the outer circumference of the first tubular body so as to seal the at least one fluid delivery channel on the outer surface of the first tubular body. A section of the fitted first and second tubular assembly is removed therefrom so as to define a fluid delivery channel in the form of a sealed fluid conduit.

Claims (24)

1. A fluid conduit prepared by a process comprising the steps of:

forming at least one fluid delivery channel along the outer surface of a first elongate tubular body, the first elongate tubular body defining a longitudinal axis and an outer curved surface having a radius of curvature;

fitting a second elongate tubular body about the outer circumference of the first tubular body so as to seal the at least one fluid delivery path channel on the outer surface of the first tubular body; and

removing a section of the fitted first and second tubular bodies defining the at least one fluid delivery path so as to define the fluid conduit wherein the fluid conduit is expandable.

2. A fluid conduit as recited in claim 1 , wherein a portion of the fluid conduit has radius of curvature substantially the same as the radius of curvature defined by the first elongate tubular body.

3. A fluid conduit as recited in claim 2 , wherein the at least one fluid conduit has at least one curved section defined by a first portion parallel to the longitudinal axis of the first tubular body, a second portion not parallel to the longitudinal axis of the first tubular body, and a third curved portion defined between the first and second portions.

4. A fluid conduit as recited in claim 3 , wherein the first tubular body has a cylindrical configuration.

5. A fluid conduit as recited in claim 3 , wherein a plurality of fluid delivery channels are defined on the first tubular body.

6. A fluid conduit as recited in claim 5 , wherein each of the fluid delivery channels is formed so as to be nested relative to one another.

7. A fluid conduit prepared by a process comprising the steps of:

forming at least one fluid delivery channel along the outer surface of a first elongate tubular body, the first elongate tubular body defining a longitudinal axis and an outer curved surface having a radius of curvature wherein the at least one fluid delivery channel is formed to have a helical configuration;

fitting a second elongate tubular body about the outer circumference of the first tubular body so as to seal the at least one fluid delivery path channel on the outer surface of the first tubular body; and

removing a section of the fitted first and second tubular bodies defining the at least one fluid delivery path so as to define the fluid conduit.

8. A fluid conduit as recited in claim 1 , further including the step of after forming at least one fluid delivery channel, plating the outer surface of the first elongate tubular body with a brazing alloy.

9. A fluid conduit as recited in claim 1 , wherein the second tubular body has an inner circumference greater than the outer circumference of the first tubular body.

10. A fluid conduit as recited in claim 1 , wherein the step of fitting the second elongate tubular body to the first elongate tubular body includes brazing the second elongate tubular body to the first elongate tubular body.

11. A fluid conduit as recited in claim 1 , wherein the step of fitting the second elongate tubular body to the first elongate tubular body includes welding the second elongate tubular body to the first elongate tubular body.

12. A plurality of expandable fluid conduits prepared by a process comprising the steps of:

defining a plurality of fluid delivery channels along the outer surface of a first elongate tubular body defining a longitudinal axis and an outer curved surface having a radius of curvature wherein each fluid delivery channel has at least one curved section defined by a first portion parallel to the longitudinal axis of the first tubular body, a second portion not parallel to the longitudinal axis of the first tubular body, and a third curved portion defined between the first portion and second portions and wherein each of the fluid delivery channels is formed so as to be nested relative to one another on the first tubular body;

fitting a second elongate tubular body having an inner circumference about the outer circumference of the first tubular body so as to seal each fluid delivery path channel on the outer surface of the first tubular body; and

removing a plurality of sections from the fitted first and second tubular bodies wherein each removed section corresponds to a respective fluid delivery channel so as to define a plurality of expandable fluid conduits.

13. A plurality of expandable fluid conduits as recited in claim 12 further including the steps of:

plating the outer surface of the first elongate tubular body with a brazing alloy after forming at least one fluid delivery channel; and

brazing the second elongate tubular body to the first elongate tubular body after fitting the second elongate tubular body to the first elongate tubular body.

Assignments (2)
CHANGE OF NAME Recorded May 23, 2022
From: DELAVAN INC
To: COLLINS ENGINE NOZZLES, INC.
Reel/Frame 060158/0981 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 22, 2010
From: DONOVAN, MATTHEW R.
To: DELAVAN INC
Reel/Frame 025630/0763 →