Patent ID: 8684026
Filing Date: 2014-04-01
Classification: B67D,Y10T

Abstract:
1. A closure for a pressure vessel, the closure comprising: a housing; at least one valve element movable with respect to the housing between closed and open positions; and a lock mechanism capable of holding the valve element in the open position; wherein the lock mechanism comprises first and second parts, the first part being movable with the valve element and comprising a lock element engageable with a lock formation of the housing to hold the valve element in the open position; and the second part being movable with the first part when the valve element moves from the closed position to the open position, the first part thereafter being movable relative to the second part as the valve element returns from the open position to the closed position, said relative movement between the first and second parts enabling engagement of the lock element with the lock formation of the housing to hold the valve element when the valve element returns to the open position.