Breech lock coupling

Patent metadata

Field	Value
Publication number	US-10215318-B2
Application number	US-201615221302-A
Country	US
Kind code	B2
Filing date	Jul 27, 2016
Priority date	Jul 27, 2016
Publication date	Feb 26, 2019
Grant date	Feb 26, 2019

Abstract

A breech lock coupling comprising a stem receivable in a hose, a ferrule configured to receive the stem and hose, a connector, the ferrule comprising a plurality of ferrule lugs on an inner surface, each ferrule lug separated from an adjacent ferrule lug by a ferrule lug gap, the connector comprising a plurality of connector lugs on an outer surface, each connector lug separated from an adjacent connector lug by a connector lug gap, each ferrule lug gap arranged to receive a connector lug and each connector lug gap arranged to receive a ferrule lug upon engagement of the ferrule with the connector, each connector lug axially alignable with a ferrule lug upon rotation (R) of the connector within the ferrule, the connector engages a stem end, a fastener for fixing a connector position relative to the ferrule.

First claim

We claim:

1. A breech lock coupling comprising:
a stem ( 100 ) receivable in a hose;
a ferrule ( 200 ) configured to receive the stem and hose;
a connector ( 300 );
the ferrule comprising a plurality of ferrule lugs ( 205 ) on an inner surface, each ferrule lug separated from an adjacent ferrule lug by a ferrule lug gap ( 208 );
the connector comprising a plurality of connector lugs ( 302 , 303 ) on an outer surface, each connector lug separated from an adjacent connector lug by a connector lug gap ( 306 );
each ferrule lug gap arranged to receive a connector lug and each connector lug gap arranged to receive a ferrule lug upon engagement of the ferrule with the connector;
each connector lug axially alignable with a ferrule lug upon rotation (R) of the connector within the ferrule;
the connector engages a stem end ( 104 ); and
a fastener ( 209 ) for fixing a connector position relative to the ferrule.

2. The coupling as in claim 1 further comprising a seal between the stem and the connector.

3. The coupling as in claim 1 further comprising a seal between the stem and the hose.

4. The coupling as in claim 1 , wherein the stem comprises stem serrations on an outer surface.

5. The coupling as in claim 4 , wherein the ferrule comprises protrusions extending from an inner surface.

6. The coupling as in claim 1 , wherein the stem end comprises a male end and the connector comprises a female end.

7. The coupling as in claim 1 , wherein the ferrule lugs are aligned axially.

8. The coupling as in claim 1 , wherein the connector lugs are aligned axially.

9. The coupling as in claim 1 , wherein the ferrule comprises a hole for receiving the fastener, and the fastener is received in a connector lug.

10. The coupling as in claim 1 , wherein the ferrule comprises an annular protrusion which mechanically locks with the stem upon the ferrule being crimped or swaged.

11. A breech lock coupling comprising:
a stem to engage a hose, the stem further comprising a stem annular protrusion on an outer surface;
a ferrule configured to receive the stem and hose, the ferrule further comprising a ferrule annular protrusion on an inner surface;
a connector;
the ferrule comprising a plurality of ferrule lugs on an inner surface, each ferrule lug separated from an adjacent ferrule lug by a ferrule lug gap;
the connector comprising a plurality of connector lugs on an outer surface, each connector lug separated from an adjacent connector lug by a connector lug gap;
each ferrule lug gap arranged to receive a connector lug and each connector lug gap arranged to receive a ferrule lug upon engagement of the ferrule with the connector;
each connector lug axially alignable with a ferrule lug upon rotation (R) of the connector within the ferrule;
the connector connects to a stem end;
the stem annular protrusion and ferrule annular protrusion are mechanically lockable upon the ferrule being crimped or swaged; and
a fastener for fixing a connector position relative to the ferrule.

12. The coupling as in claim 11 further comprising a seal between the stem and the connector.

13. The coupling as in claim 11 further comprising a seal between the stem and the hose.

14. The coupling as in claim 11 , wherein the connection between the connector and the stem end is a bell and spigot style connection.

15. The coupling as in claim 11 , wherein the ferrule lugs are aligned axially.

16. The coupling as in claim 11 , wherein the connector lugs are aligned axially.

17. The coupling as in claim 11 , wherein the ferrule comprises a hole for receiving the fastener, and the fastener is received in a connector lug.

18. A breech lock coupling comprising:
a stem configured to engage a hose;
a ferrule configured to receive the stem and hose;
a connector configured to engage the ferrule, and to engage a stem end opposite the hose with a bell and spigot style connection;
the connector locking to the ferrule with a breech lock connection; and
the ferrule locking directly to the stem by crimping or swaging the ferrule to the stem.

19. The coupling as in claim 18 further comprising a fastener engaged between the ferrule and the connector.

20. The coupling as in claim 19 further comprising a seal between the connector and the stem.

Assignees

• Gates Corp

Inventors

• Gaspar Andras
• Reichenberger Norbert

Classifications

• F16L33/2073

  directly connected to the rigid member · CPC title

• F16L37/252

  the male part having lugs on its periphery penetrating into the corresponding slots provided in the female part · CPC title

• F16L25/009 Primary

  Combination of a quick-acting type coupling and a conventional one · CPC title

• F16L33/2075

  by quick acting · CPC title

• F16L33/225 Primary

  a sleeve being movable axially · CPC title