Patent ID: 8366353
Filing Date: 2013-02-05
Classification: B65G

Abstract:
1. An access chamber assembly for use in a carrier transport system, comprising: a support structure with a carrier reception chamber; an access cover adjustably supported by said support structure between an open, access-to-carrier state and a closed state relative to said reception chamber; a seal assembly comprising a first seal component supported by said support structure and a second seal component supported by said access cover, and wherein said support structure includes a bearing surface and said access cover includes a bearing surface with an intentional excess clearance space provided between said bearing surfaces for ease in relative adjustment of said access cover relative to said support structure, and wherein said intentional clearance allows for a radial shifting between said support structure and said access cover during a period of pressurization within the reception chamber whereupon said seal components are brought into high level sealing contact, and wherein said second seal component has a tapered surface which, when radially adjusted by the pressurization, increases an amount of sealing contact relative to said first seal component based on a shape of the tapered surface.