Quick coupling for hydraulic fluid pipes

Details Quick coupling for hydraulic fluid pipes Quick coupling for hydraulic fluid pipes

2007-01-30

2007-01-30

Bastianelli, John (Department: 3751)

Fluid handling

Systems

Flow path with serial valves and/or closures

C137S614050

Reexamination Certificate

active

10557147

ABSTRACT:
The invention relates to a quick-connect coupling for hydraulic fluid conduits. The inventive coupling consists of a male element and a female element comprising an outer tubular part and a mobile coupling part. In addition, joints are provided between the tubular parts and define chambers. According to the invention, during the coupling phase, one hydraulically-pressurised chamber can be communicated with an atmospheric pressure chamber, using at least one longitudinal groove or similar element which is disposed in the tubular coupling part or in the outer tubular part.

REFERENCES:
patent: 4388947 (1983-06-01), Steuerwald
patent: 4664148 (1987-05-01), Magnuson
patent: 4974635 (1990-12-01), Hanus et al.
patent: 5967491 (1999-10-01), Magnuson et al.
patent: 37 13 284 (1988-11-01), None
patent: 39 42 618 (1991-06-01), None
patent: 2 738 896 (1997-03-01), None

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