F - Mech Eng,Light,Heat,Weapons – 22 – B
Patent
F - Mech Eng,Light,Heat,Weapons
22
B
122/154, 277/18
F22B 37/00 (2006.01) F16L 55/134 (2006.01) F22B 37/22 (2006.01) G21C 13/028 (2006.01)
Patent
CA 1141611
Abstract of the Disclosure A plug means for effecting a temporary blockage of a passage through which liquid is designed to flow. The subject plug means in- cludes a frame means capable of being readily disassembled and embody- ing in the assembled state dimensions corresponding to the cross- sectional dimensions of the passage in which the plug means is to be employed, and inflatable means mountable on the frame means and co- operable therewith for providing a liquid tight seal in the passage. The frame means comprises a frame member including a plurality of readily interconnectable sections of plate, the latter each possessing a high strength-to-weight ratio; interconnecting means for effecting the interconnection of the plurality of plate sections; and securing means cooperable with means provided in the side walls of the passage for securing the frame means and thereby the plug means in the passage in blocking relation thereto. The inflatable means includes at least one resilient member that is provided with a rim in the form of an inflatable bead. The inflatable means is mountable on the frame mem- ber so as to be positionable substantially in circumferentially envelop- ing relation relative thereto. The inflatable means further includes an externally accessible inflation means connected to the inflatable bead, and operable to effect the inflation thereof.
343322
Abb Combustion Engineering Nuclear Power Inc.
Smart & Biggar
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