F - Mech Eng,Light,Heat,Weapons – 24 – F
Patent
F - Mech Eng,Light,Heat,Weapons
24
F
45/20, 257/21.3
F24F 5/00 (2006.01) F16L 55/11 (2006.01) F16L 55/128 (2006.01) F16L 55/132 (2006.01) F24F 13/00 (2006.01)
Patent
CA 1211935
ABSTRACT OF THE DISCLOSURE A plug assembly for use in a thermal-medium passage in a unit curtain wall, for example, comprises a circular gasket seat having a central cylinder with an annular elastomeric gasket placed on the gasket seat around the central cylinder, and a sleeve fitted over the central cylinder and fastened thereto by a fastener such as a hexagonal socket head cap screw threaded through a bottom of the sleeve axially into the central cylinder. When the plug assembly is to be put in the thermal-medium passage, the plug assembly is inserted into the passage with the fastener slightly loosened. After the plug assembly has been pushed to a desired position in the passage, the fastener is tightened by a tightening tool until the annular elastomeric gasket is resiliently squeezed between the sleeve and the gasket seat radially outwardly against an inner circumferential wall of the passage. A heat- transporting medium such as hot water can be prevented by the annular elastomeric gasket from flowing through the passage. The plug assembly is retained in position by a setscrew threaded through a passage wall against the sleeve.
432819
Gowling Lafleur Henderson Llp
Yoshida Kogyo K.k.
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