# US 8,783,731 B2 · Connecting arrangement

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- Number: US 8,783,731 B2
- Document ID: US8783731B2
- Status: Granted
- Kind: B2
- Application number: 13/624,164
- Filed: 2012-09-21
- Published: 2013-03-28
- Granted: 2014-07-22
- Earliest claimed: 2011-09-23
- Assignees: Lincoln GmbH
- Applicants: Lincoln GmbH
- Inventors: Andreas Schönfeld; Daniel Beisel
- Web page: https://patentgrep.com/patent/US8783731B2

## CPC

- F16L 33/2071: {the sleeve being a separate connecting member}
- F16L 19/065: the wedging action being effected by means of a ring
- F16L 33/224: {a clamping ring being arranged between the threaded member and the connecting member}
- F16L 35/00: Special arrangements used in connection with end fittings of hoses, e.g. safety or protecting devices
- F16L: PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL

## Abstract

A connecting arrangement for connecting a high-pressure hose to a connector. The arrangement features a hollow hose nipple that can be at least sectionally inserted into the hose. A screw sleeve that sectionally encompasses the high-pressure hose can be arranged on the hose nipple. The hose nipple is fluidically connected to the connector and can be connected to the connector by a union nut.

## Claims

### Claim 1

A connecting arrangement for connecting a hose to a connector, said connecting arrangement comprising a hollow hose nipple that can be at least partially inserted into the hose, and a screw sleeve that is arranged on and in contact with the hose nipple and partially encompasses the hose, wherein the hose nipple is fluidically connected to the connector and can be connected to the connector by means of a union nut, wherein the union nut at least partially encompasses the screw sleeve, wherein the union nut comprises a first sleeve section with an internal thread for connection to the connector and with an inwardly directed collar for being supported on the hose nipple or an element connected thereto, and wherein the union nut comprises an additional sleeve section for encompassing the screw sleeve.

### Claim 2 (depends on 1)

The connecting arrangement according to claim 1, wherein the collar of the union nut is conically tapered toward the inside.

### Claim 3 (depends on 1, 2)

The connecting arrangement according to claim 1 or 2, wherein the union nut comprises an annular groove, in which a ring seal is arranged, on the additional sleeve section.

### Claim 4 (depends on 1)

The connecting arrangement according to claim 1, wherein a cutting ring, on which the union nut is supported, can be attached to the hose nipple.

### Claim 5 (depends on 4)

The connecting arrangement according to claim 4, wherein the collar of the union nut is partially seated on the hose nipple and encompasses the cutting ring.

### Claim 6

A connecting arrangement for connecting a hose to a connector, said connecting arrangement comprising a hollow hose nipple that can be at least partially inserted into the hose, and a screw sleeve that is arranged on and in contact with the hose nipple and partially encompasses the hose, wherein the hose nipple is fluidically connected to the connector and can be connected to the connector by means of a union nut having a collar, wherein the union nut at least partially encompasses the screw sleeve, wherein a cutting ring, on which the union nut is supported, can be attached to the hose nipple, and wherein the collar of the union nut is partially seated on the hose nipple and encompasses the cutting ring.

### Claim 7 (depends on 1, 2)

The connecting arrangement according to claim 1, 2, or 6, wherein the screw sleeve comprises an annular groove, in which a ring seal is arranged.

### Claim 8 (depends on 1, 2)

The connecting arrangement according to claim 1, 2, or 6, wherein an antikink spring surrounds a transition area from the screw sleeve to the hose.