Patent ID: 6149129
Filing Date: 2000-11-21
Classification: F16K,F16L,Y10T

Abstract:
A valve comprising:a valve body with a forward end having a forwardly tapering valve body opening defined by a valve seat; anda valve seal positioned in the valve body and having a forward end with a forwardly tapering valve seating portion, the forward end of the valve seal being movable rearwardly from a closed position in which the valve seating portion sealingly mates against the valve seat to close the valve body opening, to an open position in which the valve seating portion is spaced from the valve seat to allow fluid to pass through the valve body opening and through the valve, said valve seal being resilient so as to urge the forward end of the valve seal into the closed position; andwherein the forward end of the valve seal has a rearwardly tapering recess surrounded by the valve seating portion, and the forward end of the valve seal is laterally resilient so that the valve seating portion of the valve seal can be laterally urged into engagement against the valve seat by a probe before the valve seal is moved out of the closed position.