F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
16
L
189/10
F16L 55/24 (2006.01) B65D 39/08 (2006.01) B65D 59/02 (2006.01) F16L 55/11 (2006.01)
Patent
CA 1170200
OZ-222 INSERT PLUG ABSTRACT A threaded insert plug for at least temporarily closing an opening in an internally threaded member. The plug member comprises a right circular cylinder closed at the lower end thereof. The closing surface includes an upstanding central portion proportioned to permit the application of a wrench and may include a screwdriver slot on an upper surface. The interior of the cylinder includes critically positioned projections and/or depressions which permits use of a lever having an end positioned against the projection or depression and a mid-portion against at least part of the upstanding central portion to permit the production of a turning torque. The surface irregularitiesmay be configured and positioned to permit engagement with a suitable wrench. The walls of the plug may have generally uniform thickness thereby providing an economical and minimum weight plug. The upper surface of the upstanding central portion rises no further than the plane including the upper limit of theplug member. This facilitates use of the plug with a coupling to provide a penetration in a poured concrete wall or any other application where flush mounting is expedient.
404298
Gajajiva Padej
Wium Eigil
Borden Ladner Gervais Llp
General Signal Corporation
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