Abstract: A canister for storing and launching a self-propelled projectile comprises: a) an inner layer comprising an aluminum foil; b) a top layer consisting of an injected thermoplastic polymer; and c) optionally, a primer and/or a topcoat.

Abstract: A canister for storing and launching a self-propelled projectile comprises: a) an inner layer comprising an aluminum foil; b) a top layer consisting of an injected thermoplastic polymer; and c) optionally, a primer and/or a topcoat.

Abstract: A locking device integrated in a control knob, a control device, a valve and the like, configured to rotate with respect to a seating therebeneath and having a latching device that includes a latch plate configured to slidingly reciprocate within a housing inside the control knob. The latch plate has a tongue appended thereto and protruding therebeneath for releasably engaging a slot in the seating, such that when the latch plate is in the outer position, the tongue engages the slot and latches the control knob preventing its rotation with respect to the seating, and when the latch plate is in the inner position, the tongue is disengaged from the slot and is unlatched from the control knob, allowing its rotation with respect to the seating.