IP Library Granted Patent US 10,883,636
Granted Patent B2
US 10,883,636 · App. 15/737,005 · Granted Jan 5, 2021

Fluid fitting

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Quick Facts
Patent No.
US 10,883,636
App. No.
15/737,005
Filed
Dec 15, 2017
Granted
Jan 5, 2021
Kind
B2
Art Unit
3679
USPC
285/256
Abstract

A fitting ( 30 ) for fluid communication with a fluid conduit includes a first fluid conduit connection portion ( 42 ), a second fluid conduit connection portion ( 42 ′), a header ( 60 ) disposed axially between the first fluid conduit connection portion and the second fluid conduit connection portion, and a socket ( 70 ). A fluid fitting may include a nipple ( 40 ), a radial projection ( 48 ) connected to the nipple, and an axial protrusion ( 120 ) extending from the radial projection. The axial protrusion may be configured to protrude into an axial end of a fluid conduit ( 80 ). A fluid fitting may include a fluid conduit connection portion ( 42 ) and a dynamic tip ( 130 ) connected to an end of the fluid conduit connection portion. The dynamic tip may be configured to expand in response to an increase in fluid pressure.

Claims (23)

1. A fluid fitting, comprising; a first fluid conduit connection portion forming an axial protrusion that extends to an outermost longitudinal end, wherein the axial protrusion includes a first tapered surface extending from the outermost longitudinal end, a longitudinally extending surface extending from the first tapered surface, and a second tapered surface extending from the longitudinally extending surface; a second fluid conduit connection portion; a header disposed axially between the first fluid conduit connection portion and the second fluid conduit connection portion; a sealing sleeve forming an axially-extending recess including inner and outer diameters with respective inner and outer retaining features to opposingly engage corresponding inner and outer surfaces of a fluid conduit; a nipple with a radial projection connected to the nipple; and a socket; wherein the axial protrusion inwardly tapers to a pointed leading end that is configured to provide a seal by protruding into an axial end of a fluid conduit; and the axial protrusion includes a convexed arch surface extending from the second tapered surface and a second longitudinal surface extending from the convexed arch surface.

2. The fluid fitting of claim 1 , wherein the sealing sleeve and the first fluid conduit connection portion define an axially-extending radial gap.

3. The fluid fitting of claim 2 , wherein the axially-extending radial gap is configured to receive at least a portion of the fluid conduit.

4. The fluid fitting of claim 3 , wherein the fluid conduit includes a skived section, and the axially-extending radial gap is configured to receive the skived section.

5. The fluid fitting of claim 1 , wherein the first fluid conduit connection portion is configured for a first crimping and a second crimping.

6. The fluid fitting of claim 5 , wherein the first crimping includes crimping of a fluid conduit between the socket and the first fluid conduit connection portion.

7. The fluid fitting of claim 5 , wherein the first crimping substantially isolates the second crimping from axial loads.

8. The fluid fitting of claim 1 , wherein the sealing sleeve includes a retaining feature that overlaps radially with a retaining feature of the first fluid conduit connection portion.

9. The fluid fitting of claim 1 , wherein an outer end of the first fluid conduit connection portion includes a tapered inner diameter.

10. The fluid fitting of claim 1 , wherein the sealing sleeve is integrally formed with the first fluid conduit connection portion, the second fluid conduit connection portion, and the header.

11. A fluid fitting, comprising: a nipple; a radial projection connected to the nipple; and an axial protrusion extending from the radial projection to an outermost longitudinal end, wherein the axial protrusion includes a first tapered surface extending from the outermost longitudinal end, a longitudinally extending surface extending from the first tapered surface, and a second tapered surface extending from the longitudinally extending surface; wherein the axial protrusion inwardly tapers to a pointed leading end that is configured to provide a seal by protruding into an axial end of a fluid conduit; and the axial protrusion includes a convexed arch surface extending from the second tapered surface and a second longitudinal surface extending from the convexed arch surface.

12. The fluid fitting of claim 11 , wherein said axial end of said fluid conduit includes a core and a reinforcement layer.

13. The fluid fitting of claim 11 , wherein the axial protrusion is configured to deflect inward during crimping to hook at least a portion of said fluid conduit.

14. The fluid fitting of claim 11 , wherein the radial projection is integrally formed with the nipple.

15. The fluid fitting of claim 11 , wherein the radial projection is integrally formed with the axial protrusion.

16. The fluid fitting of claim 11 , wherein the radial projection and axial protrusion are integrally formed with the nipple.

17. The fluid fitting of claim 11 , comprising a socket disposed at least partially around the axial protrusion.

18. The fluid fitting of claim 11 , wherein the fluid conduit does not include any metal.

19. A fluid fitting, comprising: a fluid conduit connection portion forming an axial protrusion extending to an outermost longitudinal end, wherein the axial protrusion includes a first tapered surface extending from the outermost longitudinal end, a longitudinally extending surface extending from the first tapered surface, and a second tapered surface extending from the longitudinally extending surface; a nipple with a radial projection connected to the nipple; and a dynamic tip connected to an end of the fluid conduit connection portion; wherein the dynamic tip is configured to radially expand in response to an increase in fluid pressure; the axial protrusion inwardly tapers to a pointed leading end that is configured to provide a seal by protruding into an axial end of a fluid conduit; and the axial protrusion includes a convexed arch surface extending from the second tapered surface and a second longitudinal surface extending from the convexed arch surface.

20. The fluid fitting of claim 19 , wherein the dynamic tip comprises a generally annular shape.

21. The fluid fitting of claim 19 , wherein the dynamic tip comprises a polygonal shape.

22. The fluid fitting of claim 21 , wherein the polygonal shape comprises a decagon.

23. The fluid fitting of claim 19 , wherein the dynamic tip has a first diameter at a first fluid pressure and has a second diameter at a second fluid pressure.