초록 ▼

A shield is rotatably mounted to a threaded element of the closure on an axis coincident with the axis of the threaded element, so that the shield impedes access to the threaded element. The shield can be removed from the threaded element or connected to the threaded element only upon actuation of t

A shield is rotatably mounted to a threaded element of the closure on an axis coincident with the axis of the threaded element, so that the shield impedes access to the threaded element. The shield can be removed from the threaded element or connected to the threaded element only upon actuation of the closure by an appropriate key. Absent such actuation, the threaded element cannot be rotated for disengagement from the conduit by rotating the shield. The closure is protected against attempts to disengage it from the conduit by bonding the shield to the threaded element with an adhesive and rotating the shield.

대표청구항 ▼

A lockable closure for a threaded conduit comprising: (a) a threaded element adapted sealingly to engage the conduit, the threads of such element defining an axis; (b) a shield rotatably attached to said threaded element on said axis, said shield at least partially covering said threaded element, a

A lockable closure for a threaded conduit comprising: (a) a threaded element adapted sealingly to engage the conduit, the threads of such element defining an axis; (b) a shield rotatably attached to said threaded element on said axis, said shield at least partially covering said threaded element, a surface of said shield confronting a surface of said threaded element so that during engagement of said threaded element with said conduit, said shield impedes direct engagement of said threaded element by a tool; (c) means for permitting rotational coupling between said threaded element and a tool upon actuation by key means; and (d) said confronting surfaces defining therebetween means including a gap for impeding linkage of said confronting surfaces by introductions of an adhesive material.