Abstract: The method of attaching one or more plastic parts made from polypropylene to a glass container by means of an adhesive includes, prior to applying the adhesive over a portion of a surface of the one or more plastic parts in order to attach the plastic part or parts to the glass container, activating at least that portion of the surface, either by treating that portion of the surface with a low pressure plasma, preferably generated in a natural gas/air mixture at from 10 to 500 Pa, or by treating that portion of the surface with a flame from a gas burner. The one or more glass parts include a plastic handle and/or plastic lip member with a circumferential groove engageable with the upper edge of the glass container, especially a coffee container.

Abstract: According to the invention, to connect sealing strips overlapping one another which are located in a trench in the ground. A housing is placed at the overlap region which spans this region and seals the region. Next the housing is pumped empty of a filling agent, such as bentonite which is used to stabilize the trench. The overlap region is then cleaned for welding, and can then be welded by means of commercially available welding equipment.