초록 ▼

A diffusion channel assembly for use with a device enclosure with two or more nested cups forming at least one diffusion channel. The nested cups are formed of a thermoplastic film material. Each of the cups has a perimeter seal portion substantially around the entire outer perimeter of the cups and

A diffusion channel assembly for use with a device enclosure with two or more nested cups forming at least one diffusion channel. The nested cups are formed of a thermoplastic film material. Each of the cups has a perimeter seal portion substantially around the entire outer perimeter of the cups and surrounding a cup portion having a vent hole. The perimeter seal portions form a sealing surface and are generally integral with the cup portions. The cup portions have vent holes and at least one gap between adjacent cup portions that connect the vent holes of the adjacent cup portions. The gaps coupled with the vent holes of adjacent cup portions form at least one diffusion channel of a length of at least 5 mm. The perimeter seal portions are sealed to form an airtight seal around the cup portion forming an integral diffusion channel assembly. Preferably, a sorbent filter material is included in the cavity formed by the innermost cup portion and is contained in this cup portion by a cover layer attached to the perimeter seal portion of the innermost cup portion.

대표청구항 ▼

1. A diffusion channel assembly for use with a device enclosure comprising two or more film layers, at least two of said film layers forming cup portions wherein two or more of the cups portions are nested one inside the other and wherein adjacent film layers are spaced from each other to form at le

1. A diffusion channel assembly for use with a device enclosure comprising two or more film layers, at least two of said film layers forming cup portions wherein two or more of the cups portions are nested one inside the other and wherein adjacent film layers are spaced from each other to form at least one gap, each of said film layers having a perimeter seal portion substantially around the entire outer perimeter of the film layer, wherein said perimeter seal portions surround the cup portions and form a sealing surface, the perimeter seal portions of adjacent film layers being sealed to create a continuous seal around the cup portions, wherein at least one gap coupled with the vent holes of an adjacent film layer forming at least one diffusion channel.