Patent ID: 8061972
Filing Date: 2011-11-22
Classification: F16J

Abstract:
1. A closure device for an access opening of a compressor casing, comprising: a cylindrical plug at least partially disposable within the access opening, the compressor casing having an outer surface disposed radially outward from an inner surface, the access opening extending between the inner and outer surfaces, wherein the plug is configured to substantially obstruct the access opening; a shoulder extending radially outward from the cylindrical plug, wherein the shoulder is at least partially disposable against the inner surface of the compressor casing, such that pressure within the compressor casing forces the shoulder into contact with the inner surface to retain the plug at least partially disposed within the access opening; and a sealing member disposed circumferentially about the plug and configured to substantially prevent fluid flow between the plug and the access opening, wherein the compressor casing comprises first and second casing sections, and wherein the access opening is disposed generally adjacent to an interface between the first and second casing sections.