Air freshener dispenser

• US 4,157,787 A
• Filed: 08/23/1977
• Issued: 06/12/1979
• Est. Priority Date: 08/23/1977
• Status: Expired due to Term

• Current Assignee: MilPak, Inc. (Greif Incorporated)
• Original Assignee: MilPak, Inc. (Greif Incorporated)
• Inventors: Schwartz, Burton
• Primary Examiner(s): Love, John J.
• Assistant Examiner(s): Kashnikow, Andres
• Application Number:
  US05/827,022
• Time in Patent Office: 658 Days
• Field of Search: 239/53-56, 239/57, 239/60
• US Class Current: 239/56
• CPC Class Codes: A61L 9/12 Apparatus, e.g. holders, therefor
• CPC Class Codes: Y10S 261/88 Aroma dispensers

Abstract

A package and dispenser for a volatile air-treating or air-freshener material includes a container open at its upper end. A first layer of a porous material is permanently secured to the open end of the container and a second layer of a non-porous material is removably secured to the container over the porous layer. When it is desired to use the container to release vaporized aif-freshener material, the second layer is removed and the remaining porous layer allows the air-freshening vapor to permeate therethrough while at the same time retaining the remaining non-volatized material within the container.

Claims

1. A dispenser comprising a container for containing therein a material which vaporizes upon exposure to the ambient atmosphere, said container having an opening at its upper end and a peripheral flange surrounding said opening, a first layer of a material having a multiplicity of fine aperatures therein secured to said peripheral flange and covering said opening, and a second nonporous layer, being the same size as said first layer and being releasably secured to an upper surface of said first layer for sealing said aperatures in said first layer, whereby said first layer retains the material within said container and said second layer seals said container to permit storage of said material.

2. A dispenser comprising a container for containing therein a material which vaporizes upon exposure to the ambient atmosphere, said container having an opening at its upper end and a peripheral flange surrounding said opening, a first layer of a material that is porous to the vaporized material secured to said periperhal flange and covering the upper end of said container, and a second nonporous layer releasably secured to and overlying said first layer and effective when in place over said first layer to prevent evaporating material from passing therethrough into the surrounding atmosphere, said first layer being effective when said second layer is at least partially removed therefrom to retain the material in said container while allowing the vaporized material to permeate therethrough into the surrounding atmosphere.

3. The dispenser of claim 2, in which said first layer is fixedly secured to the upper perimeter of said container.

4. The dispenser of claim 2, in which said first layer comprises a sheet of material having a multiplicity of fine openings formed therein.

5. The dispenser of claim 3, in which said second layer is releasably attached to the upper surface of said first layer.