Crimpable or swageable fluid power ferrules, couplings, systems and methods employing torque communication

Patent metadata

Field	Value
Publication number	US-9857008-B2
Application number	US-62128309-A
Country	US
Kind code	B2
Filing date	Nov 18, 2009
Priority date	Nov 20, 2008
Publication date	Jan 2, 2018
Grant date	Jan 2, 2018

Abstract

A hose end coupling unitary, one-piece radially crushable ferrule has a crushable socket portion, a deformable attachment portion, and a work hardened torque communication portion defined between the socket portion and the attachment portion. The torque communication portion may be formed in the unitary one-piece radially crushable ferrule, contiguous with the socket portion and the attachment portion. Corners of the torque communication portion may be strengthened and/or the torque communication portion work hardened by disposing a die set about the formed torque communication portion and pressing the torque communication portion into the die set, strengthening corners of the torque communication portion and work hardening the torque communication portion. A mandrel having a desired internal shape of the torque communication portion may be deployed inside the torque communication portion during pressing.

First claim

What is claimed is:

1. A unitary one-piece radially crushable ferrule comprising:
a crushable socket portion;
an attachment portion; and
a work hardened, strengthened, polygonal, hollow, torque communication portion, generally contiguous with said socket portion and said attachment portion, and providing torque communication to an attached fluid power component,
wherein said torque communication portion is defined between said socket portion and said attachment portion.

2. The ferrule of claim 1 , wherein said socket portion is annealed.

3. The ferrule of claim 1 , wherein said attachment portion is annealed.

4. The ferrule of claim 1 wherein said torque communication portion retains functional, hollow shape following crushing of said socket and deformation of said attachment portion to secure said ferrule to said component.

5. The ferrule of claim 4 adapted to secure said ferrule to said component only by deformation of said attachment portion.

6. The ferrule of claim 1 wherein said socket portion is adapted to retain an insert for gripping a hose end portion.

7. The ferrule of claim 1 , wherein a portion of a wall of said ferrule defining said torque communication portion is thicker than a portion of said wall defining said socket portion.

8. The ferrule of claim 1 , wherein a portion of a wall of said ferrule defining said torque communication portion is thicker than a portion of said wall defining said attachment portion.

9. The ferrule of claim 1 , wherein a portion of a wall of said ferrule defining said torque communication portion and said attachment portion is thicker than a portion of said wall defining said socket portion.

10. The ferrule of claim 1 wherein an area underneath said torque communication portion is hollow and free of any solid insert material.

11. A unitary one-piece radially crushable ferrule comprising:
a crushable socket portion;
an attachment portion; and
a work hardened, strengthened, polygonal, hollow, torque communication portion, generally contiguous with said socket portion and said attachment portion, and providing torque communication to an attached fluid power component, wherein said socket portion is annealed.

12. A unitary one-piece radially crushable ferrule comprising:
a crushable socket portion;
an attachment portion; and
a work hardened, strengthened, polygonal, hollow, torque communication portion, generally contiguous with said socket portion and said attachment portion, and providing torque communication to an attached fluid power component, wherein said attachment portion is annealed.

Assignees

• Swift Jonathan Clark
• Miller Marvin
• Gates Corp

Inventors

• Swift Jonathan Clark
• Miller Marvin

Classifications

• F16L33/20 Primary

  Undivided rings, sleeves, or like members contracted on the hose or expanded inside the hose by means of tools; Arrangements using such members · CPC title

• F16L33/2076 Primary

  by plastic deformation · CPC title

• F16L33/02

  Hose-clips · CPC title

• F16L33/207

  only a sleeve being contracted on the hose · CPC title

• F16L33/16

  with sealing or securing means using fluid pressure · CPC title