F - Mech Eng,Light,Heat,Weapons – 16 – B
Patent
F - Mech Eng,Light,Heat,Weapons
16
B
F16B 41/00 (2006.01) F16B 23/00 (2006.01) F16B 39/02 (2006.01)
Patent
CA 2641228
A multi jackbolt tensioner including a jackbolt body having a plurality of holes with threads to receive jackbolts having torque receiving surfaces all disposed about the periphery of each jackbolts in a mutually non parallel relation to prevent the unauthorized application of torque or stress. The torque receiving surfaces of each bolt head are defined by vertices at the intersect of n number of unsymmetrical arranged torque receiving surfaces of a polygon, where n is an odd integer.
Steinbock Allan T.
Steinbock Robert C.
Macrae & Co.
Nord-Lock Switzerland Gmbh
Steinbock Machinery Corporation
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