Patent ID: 6848722
Filing Date: 2005-02-01
Classification: F16L,Y10T

Abstract:
1. A coupling for connecting a vacuum line to a body having an internal chamber to be evacuated, the coupling comprising a first part adapted to be sealingly engaged upon the wall of a body about an aperture therein and having an internal bore which thus communicates with the internal chamber of the body, and a second part also having an internal bore for communication with the bore of the first part, the second part being removably and slidably engaged within the first part, an internal valve disposed to close a passage through the internal bores of the first and second parts except when connected to a vacuum line the valve having a valve member normally sealing upon an internal wall portion of the passage with the first and second parts engaged, sealing means co-operating with the first and second parts to prevent fluid leakage therebetween, means for readily enabling separation of the two parts, and a valve pin connected to the valve member to lift the valve member from the internal wall portion to open the passage.