# US 8,770,630 B2 · Hose connecting method and connector arrangement

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- Number: US 8,770,630 B2
- Document ID: US8770630B2
- Status: Granted
- Kind: B2
- Application number: 13/549,927
- Filed: 2012-07-16
- Published: 2012-11-08
- Granted: 2014-07-08
- Earliest claimed: 2008-04-18
- Assignees: Eaton Fluid Power GmbH
- Applicants: Thomas Zenon Zakrzewski; Andreas Richard Hilgert; Markus Angelo Ullrich; Ralph Peter Merkel
- Inventors: Thomas Zenon Zakrzewski; Andreas Richard Hilgert; Markus Angelo Ullrich; Ralph Peter Merkel
- Web page: https://patentgrep.com/patent/US8770630B2

## CPC

- F16L 47/12: with additional locking means
- F16L 33/213: only a sleeve being expanded inside the hose
- Y10T 29/49911: by expanding inner annulus
- F16L: PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

A method for providing a hose pipe connection is disclosed. Embodiments of the method start with a pipe having an enlarged end portion. A sleeve is introduced into the end of the flexible hose. The sleeve has an inner diameter that is equal to the inner diameter of the hose. In an embodiment, the inner diameter of the sleeve is increased while the end of the hose is already placed on the sleeve. The hose fitted with the sleeve is then introduced into the enlarged end of the pipe. Crimping of the enlarged end will then secure the sleeve and the hose and provide a fluid tight and mechanically sturdy connection.

## Claims

### Claim 1

A connecting arrangement for connecting a flexible hose member to a socket, comprising:
a flexible hose member having at least one open end and a duct extending therefrom and defining a first inner diameter; and
a sleeve having a tubular portion located within the open end of the hose member which tubular portion of the sleeve defines a second inner diameter;
the second inner diameter is equal to the first inner diameter of the hose member; and
a socket having a bore with the end of the hose member with the tubular portion of the sleeve therein placed in the socket and being connected to a duct extending from the bore;
the socket being an expanded pipe end of a pipe member, wherein the pipe member has a third inner diameter that is equal to the first inner diameter of the flexible hose and the second inner diameter of the sleeve.

### Claim 2 (depends on 1)

The connecting arrangement according to claim 1, wherein the tubular portion of the sleeve comprises at least one sealing member.

### Claim 3 (depends on 1)

The connecting arrangement according to claim 1, wherein a flange portion of the sleeve comprises at least one sealing member.

### Claim 4 (depends on 1)

The connecting arrangement according to claim 1, wherein the expanded pipe end comprises at least one inwardly deformed zone axially securing a flange of the sleeve.

### Claim 5 (depends on 1)

The connecting arrangement according to claim 1, wherein the expanded pipe end comprises at least one inwardly deformed zone fixedly securing the end of the hose member.

### Claim 6 (depends on 1)

The connecting arrangement according to claim 1, wherein the sleeve includes a flange having an outer diameter that is larger than the first inner diameter of the flexible hose member.

### Claim 7 (depends on 6)

The connecting arrangement according to claim 6, wherein the flange comprises a frustoconical end surface.