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Reusable union coupling

Image Number 3 for United States Patent #5695225.

A connector assembly with an integral connector body of a specified size and shape. The connector body has a substantially hexagonal upper section connected to a first, unthreaded cylindrical section, which in turn is connected to a second threaded cylindrical section, which in turn is connected to a third unthreaded cylindrical section with substantially the same diameter, which in turn is connected is connected to a bottom, undercut, unthreaded section. The assembly also contains an adaptor having a central channel and an external annular sealing groove, a washer disposed within a seal cavity for forming a sealed connection when the body and adaptor are engaged, and a collar for movably connecting the connector body to the adaptor and selectively positioning the external sealing groove with respect to the internal sealing groove.

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