Vacuum sealing device for insulated staem injection tubing
Номер патента: PH24548A
Опубликовано: 03-08-1990
Автор(ы): Charles Eugene Paugh, John Clarence Matthews, Lawrence Irwin, Paul Thomas Anderson
Принадлежит: Barbock & Wilcox Co
Опубликовано: 03-08-1990
Автор(ы): Charles Eugene Paugh, John Clarence Matthews, Lawrence Irwin, Paul Thomas Anderson
Принадлежит: Barbock & Wilcox Co
Реферат: A vacuum sealing device includes a plug (58) which is thrust into a port (4) of an insulated steam injection tubing (1) for closing an annular space of the tubing which confines a vacuum. The plug (58) is mounted for movement within a first mounting element (30) and for movement within a bellows (32) having an end connected to the first mounting element (30). A second mounting element (34) is connected to the opposite end of the bellows (32) and carries a rod (40) which is fixed to the plug (58). By relatively moving the two mounting elements (30, 34) together, the bellows (32) is compressed and the plug (58) is thrust by movement of the rod (40). The first mounting element (30) is connected to an upper clamping section (12) which co-operates with a lower clamping section (14) to engage around a tubular member (3) to be plugged. The upper section (12) can be correctly centred with its plug (58) over the port (4) of the tubular member (3) by momentarily compressing the bellows (32) to extend the plug (58). The plug (58) is provided with a shank portion and a breakable tab for breaking the plug away from the shank portion. The shank portion is connected to the rod (40) so that after the plug (58) is seated in the port (4) the rod (40), its mounting elements and the clamp section (12, 14) can be removed from the insulated steam injection tubing (1).
Seal device and method for assembling a guide block in a gland of the seal device
Номер патента: US20100264602A1. Автор: Yi-Chieh Huang. Владелец: Individual. Дата публикации: 2010-10-21.