# US 8,770,629 B2 · Crimpable or swageable fluid power ferrules, couplings, systems and methods

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- Number: US 8,770,629 B2
- Document ID: US8770629B2
- Status: Granted
- Kind: B2
- Application number: 13/713,161
- Filed: 2012-12-13
- Published: 2013-04-25
- Granted: 2014-07-08
- Earliest claimed: 2008-11-20
- Assignees: The Gates Corporation
- Applicants: Marvin Miller; Jonathan Clark Swift; Matthew James King; Geoffrey Richard Keast; Timothy G. Robinson
- Inventors: Marvin Miller; Jonathan Clark Swift; Matthew James King; Geoffrey Richard Keast; Timothy G. Robinson
- Web page: https://patentgrep.com/patent/US8770629B2

## CPC

- F16L 33/20: Undivided rings, sleeves, or like members contracted on the hose or expanded inside the hose by means of tools; Arrangements using such members
- F16L 33/2076: {by plastic deformation}
- F16L: PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL

## Abstract

A hose end coupling comprising a unitary one-piece stem having an exterior barb end portion and an exterior ferrule interface portion, with a unitary one-piece radially crushable ferrule disposed over the stein, with a crushable socket portion disposed about the barb end portion, a deformable attachment portion disposed about the ferrule interface portion, and a torque communication portion defined between the socket portion and the attachment portion. The socket portion may retain a “C” shaped insert, one or more coiled inserts, or a plurality of stacked inserts, for gripping a hose end and the socket portion might define a lip, with a seal disposed in the socket portion between the insert(s) and the lip. Some embodiments of a “C” shaped insert define inner-circumferential teeth and corresponding outer-circumferential depression indentions.

## Claims

### Claim 1

A radially crushable hose coupling system, comprising:
a ferrule;
a crushable socket portion;
a plurality of generally circular stacked inserts retained in said socket portion, disposed about a hose inserted in said socket portion, and gripping said hose upon crushing of said socket portion; and
each of said inserts comprises a split ring.

### Claim 2 (depends on 1)

The coupling of claim 1, wherein outer edges of each of said inserts interfaces with an interior of said socket portion preventing movement of said stacked inserts and said hose relative to said socket portion.

### Claim 3 (depends on 1)

The coupling of claim 1 wherein said ferrule is a unitary one-piece ferrule further comprising an attachment portion and a torque communication portion contiguous with said socket portion.

### Claim 4 (depends on 1)

The coupling 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.

### Claim 5

A radially crushable hose coupling system, comprising:
a ferrule;
a crushable socket portion;
a plurality of generally circular stacked inserts retained in said socket portion, disposed about a hose inserted in said socket portion, and gripping said hose upon crushing of said socket portion, each of said inserts comprises a split ring; and
said socket portion further comprises a lip defined in an extent of said socket portion and said ferrule further comprises a seal disposed in said socket portion between said stacked inserts and said lip.

### Claim 6 (depends on 5)

The coupling of claim 5, wherein outer edges of each of said inserts interfaces with an interior of said socket portion preventing movement of said stacked inserts and said hose relative to said socket portion.

### Claim 7 (depends on 5)

The coupling of claim 5, wherein said ferrule is a unitary one-piece ferrule further comprising an attachment portion and a torque communication portion contiguous with said socket portion.

### Claim 8 (depends on 5)

The coupling of claim 5, 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.

### Claim 9

A radially crushable hose coupling system, comprising:
a ferrule;
a crushable socket portion;
a plurality of generally circular stacked inserts retained in said socket portion, disposed about a hose inserted in said socket portion, and gripping said hose upon crushing of said socket portion; and
each of said inserts comprises a split ring.

### Claim 10 (depends on 9)

The coupling of claim 9, wherein outer edges of each of said inserts interfaces with an interior of said socket portion preventing movement of said stacked inserts and said hose relative to said socket portion.

### Claim 11 (depends on 9)

The coupling of claim 9, wherein said ferrule is a unitary one-piece ferrule further comprising an attachment portion and a torque communication portion contiguous with said socket portion.

### Claim 12 (depends on 9)

The coupling of claim 9, 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.