Unscrewing security device for containers

Abstract

An unscrewing security device for a sealing lid which may be or is mounted on a fixed neck of a motor vehicle radiator, comprising a lid outer section with a handle element, locking elements which may be locked to a counter locking element on the neck and a lid inner piece comprising a valve arrangement preferably embodied as an over and under pressure combination, whereby a turning lock acts between the lid outer piece and the neck. According to the invention, such an unscrewing security device may be provided with the turning lock by application of operational data in an optimal manner, whereby the rotation lock is operated by an actuator controlled according to the operating conditions in the container or for an engine, which is mounted in a housing, itself mounted inside or outside the container in the vicinity of the lid outer piece.

1 - 18 . (canceled)  
   
   
       19 . A device for preventing unscrewing of a closure cap mounted on a stationary stub of a container, such as a motor vehicle radiator, the closure cap having: 
 an outer part with a grip element and a closure element connected to a counterpart closure element of the stationary stub; and    an inner part with a valve assembly, the device including: 
 a twist preventer operative between said outer part of said closure cap and said stationary stub;  
 a housing located according to one of:  
 inside an outside of the container near the outer part of said closure cap; and  
 a drive mechanism triggered by one of:  
 the operating data in the container and an engine, wherein:  
 said twist preventer being actuatable by said drive mechanism.  
   
   
   
       20 . The unscrewing prevention device of  claim 19 , wherein: 
 said housing that receives said drive mechanism is disposed inside the container and below said counterpart closure element of said stationary stub.    
   
   
       21 . The unscrewing prevention device of  claim 20 , wherein: 
 said housing that receives said drive mechanism is integrated with the container wall.    
   
   
       22 . The unscrewing prevention device of  claim 21 , wherein: 
 said housing is formed by a cylindrical part, protruding from the container wall, and a cap part that closes said cylindrical part.    
   
   
       23 . The unscrewing prevention device of  claim 19 , wherein: 
 said housing that receives said drive mechanism on the outside of the container and is oriented toward a circumferential region of said outer part of said closure cap remote from said counterpart closure element of said stationary stub.    
   
   
       24 . The unscrewing prevention device of  claim 23 , wherein: 
 said housing is placed on the outside of the container and is retained on a flange that is concentric with said stationary stub.    
   
   
       25 . The unscrewing prevention device of  claim 19 , wherein: 
 said twist preventer has a locking bolt, which can be shifted into position by said drive mechanism into a detent opening of said outer part of said closure cap.    
   
   
       26 . The unscrewing prevention device of  claim 25 , wherein: 
 said drive mechanism acting on said locking bolt acts unilaterally, and    said locking bolt is acted upon by a spring in the opposite direction.    
   
   
       27 . The unscrewing prevention device of  claim 25 , wherein: 
 said drive mechanism acting on said locking bolt acts on both sides.    
   
   
       28 . The unscrewing prevention device of  claim 25 , wherein: 
 said locking bolt is oriented vertically or horizontally.    
   
   
       29 . The unscrewing prevention device of  claim 19 , wherein: 
 said drive mechanism is pressure-controlled and is formed by a diaphragm or piston communicating with the container interior.    
   
   
       30 . The unscrewing prevention device of  claim 19 , wherein: 
 said drive mechanism is thermically controlled and is formed by an expanding-material capsule communicating with the container interior.    
   
   
       31 . The unscrewing prevention device of  claim 19 , wherein: 
 said drive mechanism is electromagnetically controlled as a function of the engine data, and    said locking bolt is part of an electromagnet.    
   
   
       32 . The unscrewing prevention device of  claim 19 , wherein: 
 said drive mechanism is uk as a function of the engine data, and    said locking bolt is coupled for motion with a negative-pressure diaphragm.    
   
   
       33 . The unscrewing prevention device of  claim 19 , wherein: 
 said housing is provided with axial openings pointing toward the container interior.    
   
   
       34 . The unscrewing prevention device of  claim 29 , wherein: 
 said diaphragm or the piston is fastened or axially guided in pressuretight fashion in said housing.    
   
   
       35 . The unscrewing prevention device of  claim 34 , wherein: 
 said diaphragm is fastened in pressuretight fashion between a circumferential edge of said housing and a cap part of said closure cap.    
   
   
       36 . The unscrewing prevention device of  claim 35 , wherein: 
 said cap part of said closure cap is provided with the axial openings.