Plug for containers of evaporable liquids

• US 6,354,513 B1
• Filed: 10/13/2000
• Issued: 03/12/2002
• Est. Priority Date: 02/15/1999
• Status: Expired due to Term

• Current Assignee: DBK Espana SA
• Original Assignee: DRK Espana SA
• Inventors: Basaganas Millan, Jordi
• Primary Examiner(s): NEWHOUSE, NATHAN JEFFREY
• Application Number:
  US09/673,524
• Time in Patent Office: 515 Days
• Field of Search: 215/14, 215/26, 215/28, 215/355, 215/364, 215/274, 215/275, 215/231, 220/315, 220/787, 220/789, 220/790, 220/801, 220/802, 220/DIG.19, 239/44-51
• US Class Current: 239/44
• CPC Class Codes: A01M 1/2044 Holders or dispensers for liquid insecticide, e.g. using wicks
• CPC Class Codes: A61L 9/12 Apparatus, e.g. holders, therefor

Abstract

The plug comprises a body (1) permanently coupled to the neck of a container for an air freshener or insect repellent liquid, with evaporation occurring through a wick (11) axially coupled in a concentric passage of the plug itself. An inner part of the axial passage of the plug in which wick (11) is inserted is provided with slits (7) along the main generatrix line, forming sectors (9) provided with semi pyramidal projections (12), defining means which allow motion in the direction of insertion of wick (11) and prevent its displacement in the outwards direction for removing said wick (11) from the plug, which prevents the container on which the plug is applied from being refilled with a product other than the original.

Claims

1. Plug for containers of evaporable liquids, of the type comprising an annular body with a neck for coupling and permanent attachment to the corresponding neck of the container to which it is applied, and provided with an axial concentric passage for placing a cylindrical wick, which is partially submerged in the liquid of the container and partially emerges outwards to allow evaporation through it of the liquid of the container, characterised in that the innermost or lowermost passage area of the wick comprises a concentric neck provided with slits along the main generatrix line, defining sectors which press on the lateral surface of the wick, with the neck enveloped by a second neck of greater diameter which is also provided with slits along the main generatrix line, so that the second neck is shorter than said neck;

with the property that the sectors of said neck which press on the wick are provided with triangular semi-pyramidal projections which provide means to allow an inwards displacement of the wick and prevent its displacement in the opposite direction, in order to prevent it from being separated from the plug once mounted on it, and preventing refilling of the container on which said plug is applied.