Abstract: The mountable contact element (1) for making an electrical contact with an external electrically conductive coating (22) on a nonconductive tube (20) on which the contact element is secured includes two contact rings (3,4) spaced axially from each other and each provided with interiorly extending contact brushes (5,6) peripherally encompassing the electrically conductive coating (22) and three axially extending ribs (7,8,9) spaced 120° C. from each other connecting the contact rings (3,4) mechanically and electrically conductively with each other and holding them spaced apart axially. The axially extending ribs (7,8,9) are connected to each other at a common connection point (10) on a threaded bolt (11). An ozonizer including the nonconductive tube (20) with the external electrically conductive coating (22) acting as a first electrode, a second external electrode separated from the first electrode with a dielectric and the contact element (1) is also described.

Abstract: A tabletop cooking appliance (1) has at least one electrical heating element (3) associated with a burner, a residual heat indicator and a plate-like shaped part (2) of glass, glass ceramic or ceramic as heatable surface (2a) which closes the top of the housing of the cooking appliance as a cooking surface. The shaped part (2) forms the heatable surface (2a) and at least the front side (2b), and the shaped part (2) encloses the cooking appliance.

Abstract: A measurement electrode head system is disclosed for connection to electrodes for electrochemical potential measurement. The head includes an electrode cap for connection with glass and plastic electrode rods. A coaxial cable having an outer shielding conductor and an inner conductor connects to the cap. A plastic jacket is integrally molded onto one end of the coaxial cable. The jacket has a continuous electrically conductive shielding layer adjacent an inside surface thereof and the inner conductor of the cable connects with a connection element supported within and surrounded by the electrode cap and conductive shielding layer.